Brewer Spectrometer Wiki

ab_sk

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T12:08:21+00:00

AB_SK Abort Schedule THIS IS NOT A COMMAND This is the routine that contains the code to “HOME” out the brewer from any command back to the command prompt.

af

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T17:39:30+00:00

AF Auto HG off If auto HG is set (AN), HG measurements automatically are inserted after FR measurements as part of an automatic instrument recovery strategy. This configuration must be shut off during the ED (End of Day) or it could adversely affect the closing of the current day and creation of the new day data files.

an

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T17:35:50+00:00

AN Auto HG on If auto HG is set, HG measurements automatically are inserted after FR measurements as part of an automatic instrument recovery strategy. This configuration must be shut off during the ED (End of Day) or it could adversely affect the closing of the current day and creation of the new day data files.

aodsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T18:26:21+00:00

AODSUM Aerosol Optical Depth Daily Summary AOD Summary for the Day - This routine outputs a summary list of direct sun aerosol optical depth observations for the current day.

ap

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T12:18:32+00:00

AP Monitor Voltages Printout This command prints to the monitor screen, or to disc, a number of diagnostics that are continuously available in the Brewer. The diagnostics include power supply voltages, test lamp voltages and currents, temperatures, and Brewer moisture content.

ar

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T21:56:50+00:00

AR Azimuth Rotation This test checks that the azimuth tracker does not slip dramatically with a series of short counter clockwise (ccw) motions

au

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:17:39+00:00

AU Automatic Operation The AU command results in the Brewer executing a series of commands which are imbedded the AU routine (HP HG DS ZS DS ZS DS ZS B1 UV (or UX)). The sequence continues until interrupted by an operator, or until the sun reaches ZA = 85. At ZA = 85, the system executes the ED command.

az

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:38:53+00:00

b0

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:42:57+00:00

B0 Turn off Lamps B0 ensures that the Standard Lamp and Mercury Lamps are both off. See Lamps

b1

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:45:56+00:00

B1 Mercury Lamp ON B1 turns on the internal Mercury Calibration Lamp, and is useful in a command sequence (i.e. B1DSHG) where a DS measurement is taken while the Mercury lamp is warming up B1. Note that if the HG does not execute for some reason, the lamp may be left on and must be turned off with the B0 command.

b2

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:48:22+00:00

B2 Standard Lamp ON B2 turns on the internal Standard test Lamp and is useful in a command sequence (i.e. B2ZSSL) where the ZS measurement is taken while the Standard Lamp is warming up. Note that if the SL does not execute for some reason, the Lamp may be left on and should be turned off with the B0 command.

bp

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:12:47+00:00

BP Beep This routine produces an audible alert to the operator from the collection software.

br203

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T11:44:10+00:00

Brewer 203 Calibration Dates DateCalibrated LocationTransfer StandardJuly 20, 2018Churchill July 28, 2016Churchill August 30, 2014Churchill Feburary 01, 2011Toronto December 21, 2010Toronto June 01, 2010Delft Additional Notes (Outstanding issues)

brewers

Anonymous (anonymous@undisclosed.example.com) — 2024-08-29T10:46:20+00:00

Brewers

ca

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T17:43:42+00:00

CA Custom Scan This routine was originally developed from the CZ routine that configured the instrument to scan various sources, either by reading a configuration file (CZ.CFG within the data directory) or by entering in the configuration parameters as prompted.

canadian_dobson

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T12:18:32+00:00

History of the Dobsons Spectrophotometer in Canada This Dobson moved from the Edmonton Industrial Airport to Stony Plain sometime between 1966 and 1968. This is a preWWII photoelectric Dobson which was upgraded after the war. about March 1969

cbsn

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T12:18:32+00:00

Canadian Brewer Spectrometer Network The Canadian Brewer Spectrometer Network is the operated by Environment and Climate Change Canada. They operate 8 sites across Canada (Alert - Nunavut, Churchill - Manitoba, Euerka - Nunavut, Goosebay - Newfoundland Labrador, Resolute Bay - Nunavut, Saturna - British Columbia, Stony Plain - Alberta, and Toronto - Ontario) and 2 international site in collaboration with NOAA (Mauna Loa - Hawaii and South Pole)

cf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T22:12:34+00:00

CF Instrument Constants File Update CF accesses the Brewer’s Instrument Constants File and allows the operator to make changes. Note: The constants in this file affect the operation and calibration of the instrument, and normally are not changed unless the instrument is undergoing recalibration or has undergone repairs. This command requires operator input, and changes should be made or approved only by qualified personnel.

ci

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:54:09+00:00

cj

Anonymous (anonymous@undisclosed.example.com) — 2025-01-15T13:59:01+00:00

cn

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:21:18+00:00

CN Continue This routine continues the schedule that was in use when the data collection was interrupted. Please note that if the instrument was not in scheduled operation previously (in MENU) than the CN command will not return the instrument into a scheduled data collection operation. The SK or SKC command will need to be input to prompt the operator to select a schedule to be run by the instrument.

co

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T00:07:18+00:00

CO Comments CO allows the operator to enter a comment (up to 75 characters) into the Brewer data file. This command is useful to record information about a measurement, current weather, sky conditions, and so on. This command requires operator input.

collection_software

Anonymous (anonymous@undisclosed.example.com) — 2023-11-21T17:36:21+00:00

Collection Software and Changes 5.6 November 15, 2023 - Pushed out Version 6.2. This version is a huge revamp in an attempt to reduce the memory used in the program. November 22, 2023 - New hvb.rtn that fixes the issue with doing high voltage test on V2 boards.

configuration_parameter

Anonymous (anonymous@undisclosed.example.com) — 2020-12-30T14:30:26+00:00

Configuration Parameter Parameter/responseFormatmeaningIdentifierstarting address within the spaceIdentifier or numberwhich element of a vector of such valuesDepends on depends on format of Effectivemeaning of

connectors

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T12:18:32+00:00

Connectors The brewer uses 3 types of external connectors for Power, communications and tracker cable. Communication Cable The communication cable can be used to connect to the tracker or directly to the brewer Cable Pinouts RS422 Pin Serial Gear

cs

Anonymous (anonymous@undisclosed.example.com) — 2024-01-22T16:21:13+00:00

CS Command Sequence CS is similar to a command line entry at the cm->__ prompt. The operator may enter a sequence of commands to be executed, followed by an integer which indicates the number of times the sequence is to be repeated. This command requires operator input.

cy

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T15:55:46+00:00

CY Slitmask Cycles The default value for slitmask cycling for most observations is 20. The CY command may be used to increase or decrease this number if better statistics, or a faster measurement (with degraded statistics) is desired. This command requires operator input.

cz

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T00:14:31+00:00

CZ Custom Scan CZ allows the operator to define a custom scan. Sources may be one of the internal lamps, the UV port, or the quartz window. The scan may be over any wavelength range within the Brewer’s UV scan limits, have any wavelength increment, and use any filterwheel combination.

da

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T16:15:35+00:00

DA Date Set The Brewer ephemeris requires GMT (both date and time) for proper operation. Under normal, uninterrupted operation, the computer, and Brewer, dates will change at 00:00:00 UT, and are displayed on the monitor screen. Under some conditions (power failure at 00:00:00 UT), the date may not update, and may have to be corrected manually. The pointing system updates automatically when a new date is entered.

da_lo

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:30:41+00:00

DA_LO Date / Location This routine is the code to get the date and location information. If the AVG directory for the instrument does not exist, this code will create it.

desiccant_can

Anonymous (anonymous@undisclosed.example.com) — 2022-06-08T13:42:27+00:00

Installation for New Style Desiccant Holder Old electronics (Multi-board) * Take the lid off the brewer * Turn off the brewer * Remove the tub of desiccant * Remove the 3 holding down the case on the secondary power supply as shown below

di

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:27:51+00:00

DI The DI routine completes several checks. These checks include standard lamp (SL) and Mercury bulb (Hg) warmup characteristics, while the others test and indicate the performance of various motors within the instrument. As shown in the image above, the plot shows the intensity of the bulb in relationship with time.

disassembly

Anonymous (anonymous@undisclosed.example.com) — 2025-12-19T05:33:02+00:00

Disassembly Removing The PMT Core * Remove the foreoptics (Instructions here) * Remove remove the PMT and the PMT core (Instructions here) Removing the Spectrometer Removing the Spectrometer

dk

Anonymous (anonymous@undisclosed.example.com) — 2025-01-15T13:53:33+00:00

DK Uses CJ.rtn, but does a dark count leakage test.

dm

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:52:21+00:00

DM Data Management Menu Displays the data management menu. This menu provides commands which control disk operations, data-output formatting, and production of daily data summary printouts.

documents

Anonymous (anonymous@undisclosed.example.com) — 2023-11-30T15:04:01+00:00

Documents Environment and Climate Change Canada's Brewer's SOP [Brewer Site Operators SOP] [Aersol Optical Depth] [Sun Scan] [Dispersion Calibration] [UV] [ZS Coeff Generation] [Ozone Cal] [Temp Cal] Manuals [Brewer MKII Operators Manual] [Brewer MKIII Operators Manual] [Brewer MKIII Service Manual] [Brewer MKIII service manual drawing Rev D] [Brewer MKII & MKIV Multi-board Service Manual] [ Brewer Shipping instructions V2] [ Brewer Collection Software Setup] [ Brewer Instrumen…

ds

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T19:06:08+00:00

DS Direct Sun Ozone Observation DS results in an O3 observation being taken using the direct sun as a radiation source. The Brewer Zenith Prism and Azimuth Tracker are oriented toward the sun, the Iris is closed, FW#1 is rotated to the Ground Quartz Disk (position 1), and FW#2 is adjusted for maximum intensity (starting from position 2) without overdriving the PMT detector. Data is recorded on disk and is printed as previously determined by PN, PD, and PF commands.

dssum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:37:21+00:00

DSSUM Direct Sun Data Summary DSSUM reads the daily Data (B) file and printouts out the summary of the day’s DS measurements. An entry is also made to the OZOAVGYY.nnn file. The DSSUM command is usually used as part of the ED command. See Appendix A for an example of the Ozone average files.

dt

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:44:11+00:00

DT Dead Time Measurement Dead Time is a measure of how long a photon counting circuit is “dead” (or cannot count a second photon) after a first photon has been detected. This characteristic of counting circuits can lead to counting errors especially at high photon rates if not compensated for. The DT command initiates a test for the measurement of the dead time of the Photon counting circuits of the Brewer. The DT command is normally executed as part of the ED routine and the test results are …

ec

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:38:39+00:00

EC Calibration focused configuration Used to alter the configuration line in an automated schedule Configuration set to measure 1 UV per hour, with the focus on Direct Sun measurements, No Zenith Sky, and 1 Timed UV with Fast scan for singles (Compare UV's)

ed

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:34:55+00:00

ED End of Day At the end of each solar day (solar midnight) it is desirable to summarise, sort, and print out the results of the tests and observations taken the previous day. This may be achieved by using the ED command. The ED routine: • Sorts and prints data from observations and tests (see

em

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:25:03+00:00

EM Custom configuration Used to alter the configuration line in an automated schedule Configuration set with Custom flags - modified setup (review before using) Line 11220. The following flags are not a consistent setting: NofUV%=1:DSONLY%=0:GI%=-1:UA%=1:ZP%=0:ZS%=0:ZUM%=0:IF TYP$<>

en

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:32:20+00:00

EN UV Omitted (No UV) configuration Used to alter the configuration line in an automated schedule Usually used when micrometer problems occur when doing UV. Line 11220 in the routine altered to: NofUV%=0:DSONLY%=0:GI%=-1:UA%=0:ZP%=0:ZS%=1:ZUM%=0:IF TYP$<>

end_day

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:56:42+00:00

END_DAY End of Day (past day) Command Syntax: END_DAY Feb29/21 or END_DAY 06021 END_Day performs an End of Day on a previous day’s data. For the command syntax example: if the raw data file B06021.nnn exists, a Summary file (S06098.nnn) will be created and summary files printed.

eo

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:43:54+00:00

EO Ozone Focused configuration Used to alter the configuration line in an automated schedule Configuration set to measure 1 UV per hour, with the focus on Direct Sun and Zenith Sky measurements, No Timed UV Line 11220 in the routine altered to: NofUV%=1:DSONLY%=0:UA%=0:ZP%=0:ZS%=1:ZUM%=0:IF TYP$<>

ep

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:48:33+00:00

EP Zenith Sky focus configuration Used to alter the configuration line in an automated schedule Configuration set to measure No UV measurements, Direct Sun and 3 forms of the Zenith Sky measurements, No Timed UV Line 11220 in the routine altered to: NofUV%=0:DSONLY%=0:UA%=0:ZP%=1:ZS%=1:ZUM%=1:IF TYP$<>

eu

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:53:09+00:00

EU UV focused configuration Used to alter the configuration line in an automated schedule Configuration set to measure 4 UV measurements per hour, with some Direct Sun and Zenith Sky measurements, No Timed UV Line 11220 in the routine altered to: NofUV%=4:DSONLY%=0:GI%=-1:UA%=0:ZP%=0:ZS%=1:ZUM%=0:IF TYP$<>

eubrewnet

Anonymous (anonymous@undisclosed.example.com) — 2023-08-03T14:01:21+00:00

EUBrewnet EUBrewnet is run by the AEMET and operates out of Tenerife. Izana Observatory

faq

Anonymous (anonymous@undisclosed.example.com) — 2023-11-30T14:32:05+00:00

FAQ Lamps Q: What do you have to consider after a Standard Lamp bulb change? A: Ensure brightest part of the band of light is sitting in the middle of the Iris. There are two ways to accomplish this. More... * Manually adjusting by loosening the zenith shaft and moving the shaft until the band of light lines up as shown in the picture.

ff

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:55:18+00:00

FF Form Feed Forces a form feed on the printer connected to the computer.

fi

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:08:08+00:00

FI Neutral Density Filter Test This routine tests and records the neutral densities at the various filter wheel positions. The measurements are normally taken over 3 repetitions with each repetition taking approximately 30 minutes. The test is normally run overnight and the results are written to the FIOAVG.### file.

filter_wheel

Anonymous (anonymous@undisclosed.example.com) — 2025-03-26T12:16:10+00:00

Filter Wheel Setup and Uses This is just the standard filter wheel setup used on the Canadian Brewer Spectrophotometer Network. Other networks may differ Filter Wheel 1 Filter Wheel 2 PositionStepsAttenuationFilterNotesStepsFilterNotes0

firmware

Anonymous (anonymous@undisclosed.example.com) — 2025-01-28T15:24:44+00:00

MKIII Brewer Firmware Uploading a new firmware and config file Requirement: * [BrewCMD] * Firmware file (*.bin) in the same directory as brewCMD.exe * Corresponding Brewer config file (*.cfg) brewcmd.exe * (For linux operation, the *.bin and *.cfg should be located in /home/brewer/*)

fm

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T13:17:23+00:00

FM Focused Moon Observation FM results in an O3 observation to be taken with the moon as the radiation source. The Brewer Zenith Prism and Azimuth Tracker are oriented to the moon, the Iris is opened, FW#1 is rotated to the position 3, and FW#2 is adjusted for maximum intensity, starting at position 2.

fmsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:22:31+00:00

FMSUM Focus Moon Data Summary FMSUM results in the daily Summary (S) file being read and a printout of the ‘summary’ results of the day’s FM measurements being made. An entry is also made to the FMOAVG.nnn file. The FMSUM command is usually invoked as part of the

foreoptics

Anonymous (anonymous@undisclosed.example.com) — 2025-12-19T05:33:02+00:00

Foreoptics Foreoptic Focusing Rational Suns diameter is 0.5 degrees but is magnified by the first 2 lenses by 1.5 (LE2 – 3”/ LE3 – 2”), therefore 0.5*1.5/57= 0.01316 in radians * 3” focal length = 0.03947” (1.003mm) is the size of the sun at its focal point in the visible. However the lens is placed at the UV focus of 2.85” away from the slit, so the size of the suns image will be larger by 5%. This means the suns image would be 0.03947*1.05=0.04145” (1.053mm) or about 1/3 the length of t…

fr

Anonymous (anonymous@undisclosed.example.com) — 2025-03-26T12:01:55+00:00

FR Micrometer Reset FR performs a reset of the wavelength adjust micrometers. The micrometers are moved to reference points, and then moved to the operating points as dictated by offset values contained in the instruments constants file. The FR command is invoked as part of the RE command, or the operator may manually send the FR command if the positions of the micrometers are suspect. The FR command may be used to determine new micrometer offset values, but these values should only be chang…

fuse

Anonymous (anonymous@undisclosed.example.com) — 2023-07-25T13:36:47+00:00

All The Fuses! The brewer spectrometer has a ton of fuses used for differently applications. This is what fuses ECCC uses and for where. (Not this may differ from what is shipped from the manufacture) Tracker [Tracker controller board] Inside the tracker has a 5A slow blow inline fuse for all the power including the tracker electronics and brewer

fv

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T17:56:07+00:00

FV Field of View This routine does an automated scan of the sun using the azimuth and zenith motors and configured similarly to a DS measurement. If the operator knows, without a doubt, that the sky is clear, the maximum intensity values can be used to determine input sighting values remotely for the instrument.

fz

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T14:20:47+00:00

FZ Focused Sun Observation As the sun drops lower in the sky, the high Mu values result in an increasing amount of scattered radiation in the field of view of a DS observation. The FZ command allows ozone to be determined at solar angles greater than which can be achieved with a traditional DS. Scattered radiation is measured by offsetting the solar image by 1 degree from the entrance slit, and observing radiation in the vicinity of the solar disk. This scattered radiation is then subtracted f…

fzsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:21:42+00:00

FZSUM Focused Sun Data Summary FZSUM command reads the daily Data (B) file and printouts out the ‘summary’ results of the day’s FZ measurements. The FZSUM command is usually invoked as part of the ED command.

ga

Anonymous (anonymous@undisclosed.example.com) — 2021-12-13T13:09:27+00:00

GA This routine records scans, with the standard lamp on, at different step-numbers to collect the necessary data to determine the relationship between the two spectrometers. RD_GS is used to reduce the data collected in the GAJJJYY.### file to give the values of GS and GI needed.

grating

Anonymous (anonymous@undisclosed.example.com) — 2023-05-16T10:30:51+00:00

Spectrometer Grating The direction of the arrow on the grating indicates the direction where the white light is. This is best indicated by the arrow should be pointing towards the shutter both on the top and the bottom on a MKIII instrument.

gs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:45:52+00:00

GS Gratings Data Collection GS initiates a routine that collects data required to calculate Grating Slope and Grating Intercept values, which ensure that the two gratings are synchronised during scanning. The routine performs a scan on slits 1 through 5. Data is written to a GSJJJYY.nnn file, and can be processed by the RD_GS.EXE program to calculate the Grating Slope and Grating Intercept to ensure that the two gratings are synchronised during scanning operations.

he

Anonymous (anonymous@undisclosed.example.com) — 2024-02-08T18:23:43+00:00

HE Mercury Wavelength Calibration - External Lap HE is used to accurately locate the 296.728 nm line of the Mercury spectrum using an external lap, and then adjust the diffraction grating such that the five ozone operational wavelengths fall onto the appropriate exit slits.

hg

Anonymous (anonymous@undisclosed.example.com) — 2024-02-08T18:23:38+00:00

hgsum

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:45:44+00:00

HGSUM Mercury Lamp data Summary Instructs the PC to print the daily data summary of all HG tests conducted that day.

hh

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T00:18:08+00:00

HH Micrometer Positioning test This routine is not a command run from the prompt or schedule, but rather code that eliminates redundancy. When the commands HS or HL are used or executed from within a schedule the HH code is used to configure the instrument to scan HG emission lines. HS (Short wavelength) scans the 296.728 nm line while the HL (Long wavelength scans the 334.148 nm wavelength.

highspeedamp

Anonymous (anonymous@undisclosed.example.com) — 2025-02-06T17:29:01+00:00

High Speed Amp [High speed amp schematic] [High speed amp board assembly] Adjusting and Measuring the Discriminator Voltage The default setting for the discriminator voltage depends on what type of PMT is in use. For 28mm PMT (New PMT or in most MKIII/New electronics) the typically setting is around -10mV. for 52mm PMT, the typically setting is around -30mV.

hl

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T18:19:40+00:00

HL HG Long (wavelength emission line scan) This is a command but not a routine. It is run from the prompt or schedule (HL) and is used or executed from within the HH routine code. This command configures the instrument to scan the HL (Long wavelength) HG emission line, scanning the 334.148 nm line from 333.1nm to 335.1nm, scanning at 0.025nm increments.

hp

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T00:28:20+00:00

HP Grating Synchronization HP is a routine that moves the bottom micrometer to optimize the intensity going to the Photomultiplier tube at the operating position of the top micrometer. This routine is only used on MKIII (Double spectrometer) instruments.

hs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T18:15:04+00:00

HS HG Short (wavelength emission line scan) This is a command but not a routine. It is run from the prompt or schedule (HS) and is used or executed from within the HH routine code. This command configures the instrument to scan the HS (Short wavelength) HG emission line, scanning the 296.728 nm line from 295nm to 284nm, scanning at 0.025nm increments.

hv

Anonymous (anonymous@undisclosed.example.com) — 2023-12-01T14:23:21+00:00

High Voltage Test (HV) The high voltage test is used to determine the PMT response depending on the voltage provided to it. Upon entering the HV command, you will be prompted with the following. The defaults may change from instrument to instrument, however those defaults values can be overridden by entering a different value and pressing enter. See

hvb

Anonymous (anonymous@undisclosed.example.com) — 2023-11-30T13:25:36+00:00

HVB (Depreciated) NOTE: As of version 7.33, HVB has been depreciated. HV will be used for both multiboard & single board electronics. High Voltage Test (MB) The HVB command is a modification of the HV command and should only be used on the multi-board electronics. The multi-board electronics is incapable of automatically performing this test meaning manual adjustments are required during the high voltage test. The HVB modification allows the technician to use the UP sighting BUTTON to indica…

ic

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T22:08:12+00:00

IC Instrument Configuration File Update The IC command results in a display of the Instrument’s current configuration and allows changes to be made by the operator. See Appendix B for details of the configuration options available.

icf

Anonymous (anonymous@undisclosed.example.com) — 2022-05-05T12:21:25+00:00

ICF NameDescriptiono3 Temp coef 1 o3 Temp coef 2 o3 Temp coef 3 o3 Temp coef 4 o3 Temp coef 5 Micrometer steps/deg O3 on O3 Ratio SO2 on SO2 Ratio O3 on SO2 Ratio ETC on O3 Ratio ETC on SO2 Ratio Dead time (sec) WL cal step number Unused Umkehr Offset

ioboard

Anonymous (anonymous@undisclosed.example.com) — 2025-04-01T10:59:41+00:00

Input/Output Board The input and output board deals with all the control of the Secondary Power Supply (SPS) lamp, motor, and control buttons for the brewer. These boards can be configured to different type of board depending on the need. This is usually determined output it is used for (see). There mainly two types of board being used, the original Sci-Tech board and the IOS board. The major differences are the IOS board has made it easier to change board types by using different jumpers wher…

lamp

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T18:59:45+00:00

lf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:58:09+00:00

LF Location File Update The LF command displays a list of some of the known locations of Brewer sites throughout the world. The geographical co-ordinates of the current site may be entered and/or modified.

linux

Anonymous (anonymous@undisclosed.example.com) — 2024-12-31T23:02:08+00:00

Linux - Additional Tricks and Tips WINE - Not the drinking kind... Comports setting Method 1 (regedit) * Go to regedit via wine regedit Navigate to /HKEY_Local_Machine/Software/Wine/Ports and add a new string called com1. Set the data to the comport (I.E. /dev/ttyUSB0)

ll

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:57:31+00:00

LL Location Update The LL command allows an operator to change the co-ordinates of a Brewer location, or for the selection of another site contained the location file.

micrometer

Anonymous (anonymous@undisclosed.example.com) — 2024-10-31T13:40:24+00:00

Micrometer Everything about micrometers! Micrometer terms explained! Software Micrometer Movements It is important to check to see if the micrometers can actually move from one end to the next without getting jammed, or having lack of spring tension. There two ways to check for this.

mlo

Anonymous (anonymous@undisclosed.example.com) — 2023-03-28T13:46:06+00:00

Mauna Loa Observatory Mauna Loa Observatory (MLO) is an Atmopshereic baseline station located on Mauna Loa, on the island of Hawaii US. This site is own and operated by the National Oceanic Atmosphere Administration (NOAA). With an agreement, Environment and Climate Change Canada (ECCC) has 2 Brewer situated at the site (009 and 119). During the the calibration visits to MLO, ECCC usually would bring 1 or two other Triad instruments to perform an absolute calibration as MLO is one of the best…

mm

Anonymous (anonymous@undisclosed.example.com) — 2025-08-13T05:33:02+00:00

MM TeleType Communications MM sets the Brewer program to its teletype (terminal) mode, whereby the operator may communicate directly with the Brewer via the computer keyboard and a set of low level commands. Exit from teletype mode by typing EXIT. See Appendix H for more explanation on the TeleType feature.

multiboard

Anonymous (anonymous@undisclosed.example.com) — 2025-11-28T05:33:02+00:00

Multiboard Electronics The Multiboard electronics, sometimes referred to old electronics are usually used in the MKII and MKIV Brewers. Some of the earlier MKIII brewers may also be running the multiboard electronics. The multiboard electronics consist of the primary power supply¹ (PPS),

new

Anonymous (anonymous@undisclosed.example.com) — 2020-11-16T14:26:06+00:00

test page nothing is here

nm

Anonymous (anonymous@undisclosed.example.com) — 2025-01-15T16:31:44+00:00

NM NM uses the same routine as CJ, however it doesn't move the micrometer. This is to test the stability of the bulb To run this, you must turn on the bulb either the standard lamp or mercury bulb first.

operation_information

Anonymous (anonymous@undisclosed.example.com) — 2023-05-29T14:05:52+00:00

Operation Information Syntax ? for read ! for write nameFormat of valuewriteableDescriptionANALOG.NOW []10-bit integernoA/D output value in A/D unitsBREAK.ABORT.TIME float secondsYes, reset to 0.25 on tepid resetsThe elapsed time in seconds for a continuous TTY line-break to abort command processing.

ozsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:22:15+00:00

OZSUM Ozone Summary OZSUM reads the daily Date (B) file and prints out the summary results of the day’s O3observations. In addition an entry is made in the OZOAVGYY.nnn file. The OZSUM command is usually invoked as part of the ED command. See Appendix A for an example of the OZOAVGYY.nnn file.

pd

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:01:30+00:00

PD Print to Disk PD directs printing to a “D” file on the data drive rather than to the line printer. See also PN, PF. PD at the start of a command string opens the “D” file and records the results from the following commands in the string in a more readable format than is seen in the raw data

pf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:15:58+00:00

PF PF Printer Off PF turns off all printing. Raw data continues to be recorded. See also PN, PD. Historically magnetic media had limited space. So, in order to save disk space only the raw data was saved. The more easily read “D” file was printed on paper. To save paper, only diagnostics or measurements to ensure proper instrument function was printed. As magnetic storage became larger, space was no longer a concern and this command was no longer needed within the Canadian Brewer Spectrom…

photon_counter

Anonymous (anonymous@undisclosed.example.com) — 2025-09-16T11:50:46+00:00

Photon Counter Board The photon counter board is used to count the intensity count coming from the PMT. [photon counter board schematic] [photon counter board assembly] [photon counter board wiring harness] DB9 Connector The DB9 Connector going from the PMT to the photon counter board DB9 Pin# BoardDB9 Pin# PMTUse11Negative Signal A22Negative Signal B

pmt

Anonymous (anonymous@undisclosed.example.com) — 2025-12-19T05:33:02+00:00

PMT PMT = Photo Multiplier Tube. {More things to be added} Tests Performed to Ensure High Speed Amp Function If the function of the High Speed Amp is in question it can be tested using an oscilloscope. Monitor test point TP4 on the high speed amp board, and then pins 1,2,3,4, and 12,13,14, 15 of the IC, SN75114N. Each should produce a clean square wave, the frequency of which should vary with light intensity

pn

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:22:04+00:00

PN Printer ON PN directs printing to the line printer. See also PD, PF. Historically magnetic media had limited space. So, in order to save disk space only the raw data was saved. The more easily read “D” file was printed on paper. To save paper, only diagnostics or measurements to ensure proper instrument function was printed. As magnetic storage became larger, space was no longer a concern and this command was no longer needed within the Canadian Brewer Spectrometer Network.

po

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:32:55+00:00

PO Printout Instrument Constants PO generates a printout of the instrument constants file. It is advised that a PO command is triggered from within developed schedules to be run and written to the “D” file at the beginning of each day. This can be valuable information in understanding the collected data.

pz

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:36:02+00:00

PZ Point to Zenith PZ results in the Zenith Prism being pointed to a Zenith angle of 0° (straight upwards).

ql

Anonymous (anonymous@undisclosed.example.com) — 2024-01-17T13:08:57+00:00

QL Quick UV Lamp Scan QL routine is used for performing UV calibrations on the Brewer Spectrometer. It is a test command that results in a UV scan being performed with a Lamp (rather than the sky) being the source of radiation. The zenith prism is rotated to the UV dome, FW#2 is set to the

re

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:41:21+00:00

RE Reset Initialises all of the Brewer motors (similar to the ‘Power On’ initialization), and moves them to positions as defined in the Instruments Constants File. Following an RE, the iris is closed, FW#1 is in position 1 and FW#2 is in position 3.

rl

Anonymous (anonymous@undisclosed.example.com) — 2025-02-12T13:48:32+00:00

Read Log (RL) This command will only work for brewers with Single Board Electronics installed. This will display past error history, each line displayed will be a possible clue to the problem that caused the failure. If motor failures have occurred, the status will tell you which motor and what the failure is. Usually it is a sensor problem or a wiring problem that prevents the motor from resetting. If no problems are displayed, then the system can be placed back into cosmac mode for further t…

rs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T16:03:07+00:00

RS Slit Mask "Run/Stop" Test The RS test produces a report on the operation of the Slit Mask Motor by taking measurements in the “Running” and “Stopped” modes of the Slit Mask Motor. The test results are recorded in the RSOAVG file. RS values consistently outside the range of 0.997 to 1.003 for Slit Mask positions 2 to 6 should be investigated.

ru

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T12:35:03+00:00

RU Reset and Resume This command periodically stops data collection, clears the memory and resumes data collection to address minute memory leaks that would eventually accumulate and cause issue with the collection software.

schedule

Anonymous (anonymous@undisclosed.example.com) — 2023-09-12T18:25:52+00:00

Schedule (Program) A schedule is an easy way to automate a brewer to run specific commands depending on the sun angle. it is often used with the auto-routine which takes automation to another level. To create your own schedule, simple create a text file with 'skd' as the extension (*.skd). The schedule file should be placed in

serialgear

Anonymous (anonymous@undisclosed.example.com) — 2025-02-27T15:18:37+00:00

Serial Gear DIP switch settings Operation ModeS1S2S3S4RS-232Standard RS242 ModeOffOnOnOnRS-4224 Wire with handshakingOnOnOnOnRS485Full Duplex (4 wire)OnOffOnOnHalf Duplex (2 wire) with echoOnOffOffOnHalf Duplex(2 wire) without echoOnOffOffOff pinouts

sh

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T19:09:18+00:00

SH Slit Mask (shutter) Motor Timing Test Normally a factory test, the SH command is used to determine the timing constant used in the control of the slit mask motor.

shiccal

Anonymous (anonymous@undisclosed.example.com) — 2023-08-03T10:26:18+00:00

SHICCal Setup Prerequisite * SHIC software must be reside in your root directory. C:\SHICrivm * UAView software * All ### should be changed to the respective instrument number Processing UV data The UV data must first be process before SHIC is able to ingest the data.

si

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T22:05:02+00:00

SI Refer to SIM for moon sighting. SI is used to perform a sun sighting on the brewer. It is suggested to run an AZ and ZE prior to doing the SI to ensure the brewer is pointing correctly. Sun sighting should be done once every 2 weeks to ensure the instrument is pointed correctly and measuring well.

sidebar

Anonymous (anonymous@undisclosed.example.com) — 2025-12-18T11:48:35+00:00

Brewer * Commands * Documents * Multiboard Electronics * Singleboard Electronics External Links * WOUDC * EUBrewnet * IOS * Brewer Software * Solar Calc * Martin Stanek's software

sim

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T22:04:54+00:00

SIM Lunar Siting The SIM command is used to perform a lunar siting on the brewer when the lunar disc is used as the radiation source. After the date, time, and station co-ordinates have been set accurately, a set of four controls on the front of the instrument are used to introduce ‘Horizon’ and ‘North’ corrections which compensate for any offsets that may occur. These corrections are saved and used by the software in future pointing calculations.

singleboard

Anonymous (anonymous@undisclosed.example.com) — 2025-12-05T05:33:02+00:00

Single Board Electronics The single board electronics, sometimes referred to new electronics are usually used in the MKIII Brewers. There's a very small numbers of MKIV brewers that may run a single board electronics. The single board electronics consist of the primary power supply¹ (PPS), lamp control board and the high voltage module. There are two version of the single board electronics, V1 and V2. See

sk

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T03:10:50+00:00

skc

Anonymous (anonymous@undisclosed.example.com) — 2024-01-30T13:10:11+00:00

sl

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T01:56:40+00:00

slsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:25:10+00:00

SLSUM Standard Lamp Summary SLSUM reads the daily Data (B) file and prints out the ‘summary’ results of the day’s SL tests In addition entries are made in the SLOAVG.nnn file. The SLSUM command is usually invoked as part of the ED command.

sop

Anonymous (anonymous@undisclosed.example.com) — 2020-11-26T15:04:29+00:00

SOP

spectrometer

Anonymous (anonymous@undisclosed.example.com) — 2025-01-27T10:57:48+00:00

All about Spectrometer This page is mainly split to Three different section. * Common information * Single Spectrophotometer (MKII, and MKIV) * Double Spectrophotometer (MKIII) Common Information Direction of the lens Object should appear tall and thin and concave surface should be facing (Direction of light travel) towards the slits or PMT

spectrometer_focusing

Anonymous (anonymous@undisclosed.example.com) — 2026-01-27T05:33:03+00:00

Introduction The scope of this document is to guide an experienced technician in optimizing the signal entering the photomultiplier tube of the Brewer Spectrophotometer by ensuring the optical path is correct and the optical components are positioned correctly. Some Brewer Spectrophotometer have been found to have ‘Non Focused’ spectrometers from production. This means that the light does not travel along the optical plane horizontally but rather travels at different angles through the spectrom…

sps

Anonymous (anonymous@undisclosed.example.com) — 2025-02-04T14:05:30+00:00

Secondary Power Supply The secondary power supply (SPS) is a board that supplies regulated +5VDC and -8VDC. It also has the circuitry to control the standard lamp (SL), mercury lamp (HG) temperature monitoring, stepper motor power and high voltage power (HV).

sr

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:30:19+00:00

SR Azimuth Tracker Steps Per Revolution Initiates a test that determines the number of motor steps required for one complete revolution (360°) of the Azimuth Tracker. The operator is given an opportunity to save the new value. A progressive change of value over time may suggest that Tracker maintenance is required.

st

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:34:09+00:00

ST Status and Control Permits the operator to switch the Brewer’s internal lamps off and on, and to control all Brewer stepper motors except the Slit Mask Motor.

start

Anonymous (anonymous@undisclosed.example.com) — 2026-05-24T18:13:33+00:00

The Brewer Spectrometer's Wiki [Brewer's at Toronto Downsview (World Calibration Center)] Welcome to the Brewer Spectrometer wiki where we try to host all the different information, tips and tricks and troubleshooting methods. This wiki is built off from Environment and Climate Change Canada's (ECCC) Canadian Brewer Spectrophotometer Program's wiki. The information on this wiki is still slowly growing and we definitively welcome any contributors to the wiki!

sum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T22:09:04+00:00

SUM Summary Data File SUM reads the daily raw data (BJJJYY.nnn) file and generates a new (SJJJYY.nnn) file which contains only data summary information. In addition, Umkehr data is processed and put into a separate (UJJJYY.nnn) file.

td

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T12:50:13+00:00

TD Time and Date This command synchronizes the software Date/Time with the computer clock. It is very important that the computer clock be within 5 seconds of the true time. The time, ephemeris data and location are used to calculate where to point the Brewer when making measurements.

tf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:06:20+00:00

TF Neutral Density Filter Test This routine tests and records the neutral densities at the various filter wheel positions to the file FW2TEST.###

tu

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:38:50+00:00

TU Test UV port Alignment Uses an external quartz-halogen lamp mounted over the UV dome to find the zenith motor step position for which the radiation intensity is a maximum through slit #1 of the spectrometer slit mask. This is an alignment test and should be performed if alignment of the UV optics is suspect. The results of the factory tests are found in the Final Test Record and are nominally 2112 +/- 4 steps.

um

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T21:52:52+00:00

UM Umkehr Observations UM results in data being collected which can be processed to produce an Ozone vs. Height profile. Data is normally collected between solar zenith angles of 60 ° and 90° in the morning and in the afternoon. The zenith prism is pointed to a solar zenith angle of 0°, FW#1 is set to the 0 position, FW#2 is set to the 0 position, the iris is opened, and the Tracker is rotated CCW until it is perpendicular to the sun. Intensity measurements are made at two sets of wavelengt…

uv

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T17:47:19+00:00

UV UV(B) Observation UV measures the irradiance in the UV spectrum in steps of 0.5nm from 290nm to 325nm, and then back to 290 nm. The data is appended to a UVJJJYY.nnn data file.

uvsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:33:02+00:00

UVSUM UV Data Summary This command initiates activity which processes and prints the daily summary of all UV measurements made during that day. DUV values are also calculated for each measurement and data is appended to the UVOAVG.nnn file. See Appendix A for an example of the UV average files.

wait

Anonymous (anonymous@undisclosed.example.com) — 2020-12-29T16:18:55+00:00

W# W# is a wait command. Refer to the table below for the duration. CommandDurationW01 minW15 minW210 minW320 minW430 minWBPress UP sighting button or DEL key to continue

world_brewer_location

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T12:18:32+00:00

World Brewer Spectrophotometer Location Last Updated May 2025 - Michael Brohart Inst#ModelWMO IDCountryLocationLat (N)Long(W)ContactNotes001MKIV449GreeceAcademy of Athens37.992-23.775Kostas EleftheratosConverted from MKII (actually Br#027)005MKII261

ze

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:12:59+00:00

zi

Anonymous (anonymous@undisclosed.example.com) — 2023-12-13T14:16:54+00:00

This test looks at the relationship between the standard bulb intensity and the zenith motor steps. Once test is complete you can view the results in Report Pro by uploading the DI file. Maximum intensity should be found at step 0 or 1.

zs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T21:08:19+00:00

ZS Zenith Sky Observations The zenith prism is pointed to a Zenith Angle of 0°, the iris is opened, FW#1 is set to position 0, FW#2 is set to position 2, and the azimuth tracker is pointed toward the sun. FW#2 is adjusted according to sky intensity. Data is recorded on disk and is printed as previously determined by PN, PD, and PF commands.

zssum

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:47:38+00:00

ZSSUM Zenith Sky data Summary Prints out a daily zenith-data summary and calculates the daily mean of the good measurements.