RAE Systems PGM-7600 OPERATION AND MAINTENANCE MANUAL
MiniRAE 2000
Portable VOC Monitor
PGM-7600
OPERATION AND MAINTENANCE
MANUAL
(Document No.: 011-4001)
Rev. C2
RAE SYSTEMS INC.
1339 Moffett Part drive
Sunnyvale, CA 94089
April 2003
i
ATTENTION!
For European Applications
A. 0575 II 1G/2G
DEMKO 03 ATEX 0204759X
Eex ia IIC T4
B. Recharge batteries only in non-hazardous locations.
C. Do not connect external cable to serial interface jack in
hazardous locations.
D. Use RAE Systems Adapter P/N 500-0072 for connection
to communication port and charging jack only in a non-
hazardous area.
ii
Table of Contents
1. GENERAL INFORMATION.............................. 1-1
1.1 General Specifications .............................................. 1-2
2. OPERATION OF MINIRAE 2000 ..................... 2-1
2.1 Physical Description ................................................. 2-2
2.2 Keys and Display ......................................................2-3
2.3 Power On/Off............................................................ 2-5
2.4 Operation................................................................... 2-7
2.4.1 Survey Mode ....................................................... 2-8
2.4.2 Hygiene Mode ................................................... 2-13
2.5 Alarm Signals.......................................................... 2-15
2.6 Preset Alarm Limits and Calibration ...................... 2-17
2.7 Integrated Sampling Pump...................................... 2-18
2.8 Back Light............................................................... 2-19
2.9 Datalogging............................................................. 2-20
3. OPERATION OF ACCESSORIES .................... 3-1
3.1 Standard Kit and Accessories.................................... 3-2
3.2 Optional Accessories................................................. 3-5
4. PROGRAMMING OF MINIRAE 2000............. 4-1
4.1 Programming Mode .................................................. 4-2
4.2 Keys for Programming Mode ................................... 4-3
4.3 Entering into Programming Mode ............................4-4
4.4 Calibrate and Select Gas ........................................... 4-5
4.4.1 Fresh Air Calibration...........................................4-8
4.4.2 Span Calibration .................................................. 4-9
4.4.3 Select Cal Memory ............................................ 4-11
4.4.4 Change Span Value ........................................... 4-12
4.4.5 Modify Cal Memory.......................................... 4-13
4.4.6 Change Correction Factor.................................. 4-15
4.5 Change Alarm Limits.............................................. 4-16
4.5.1 Change Low Alarm Limit .................................4-18
4.5.2 Change STEL Limit .......................................... 4-19
4.5.3 Change TWA Limit...........................................4-20
4.6 View or Change Datalog......................................... 4-21
i
4.6.1 Reset Peak/Minimum ........................................ 4-22
4.6.2 View Data (Datalog).......................................... 4-23
4.6.3 Clear Data..........................................................4-25
4.6.4 Change Data Period...........................................4-26
4.6.5 Change Average Type ....................................... 4-27
4.7 Change Monitor Setup ............................................ 4-28
4.7.1 Change Operation Mode.................................... 4-29
4.7.2 Change Site ID .................................................. 4-30
4.7.3 Change User ID ................................................. 4-31
4.7.4 Change Alarm Mode?........................................ 4-32
4.7.5 Change User Mode ............................................ 4-33
4.7.6 Change Date ...................................................... 4-34
4.7.7 Change Time ..................................................... 4-35
4.7.8 Change Lamp.................................................... 4-36
4.7.9 Change Unit....................................................... 4-37
4.7.10 Change Dilution Ratio....................................... 4-38
4.7.11 Change Output? ................................................. 4-39
4.7.12 Change DAC Range? ........................................4-40
4.7.13 Set Temperature Unit?....................................... 4-41
4.8 Exit Programming Mode......................................... 4-42
5. COMPUTER INTERFACE ................................ 5-1
5.1 Installing ProRAE-Suite Software ............................ 5-2
5.2 Connect MiniRAE 2000 to PC.................................. 5-4
5.3 Start ProRAE-Suite Software.................................... 5-5
5.4 Setup Communication Port ....................................... 5-7
5.5 Processing the Configuration Data............................ 5-8
5.5.1 Editing the Configuration Data ...........................5-9
5.5.2 Send Configuration............................................ 5-16
5.5.3 Saving Configuration Data................................ 5-17
5.5.4 Configuring All Settings.................................... 5-18
5.6 Processing the Logged Data.................................... 5-19
5.6.1 Receiving Data .................................................. 5-20
5.6.2 View Logged Data in Text Mode...................... 5-21
5.6.3 View STEL/TWA/AVG Value .........................5-23
5.6.4 View Summary Information.............................. 5-24
ii
5.6.5 View Logged Data in Graph Mode ................... 5-25
5.6.6 Exporting Data to a Text File ............................ 5-29
5.6.7 Exporting Graphics to a File.............................. 5-30
5.6.8 Printing Logged Data ........................................ 5-31
5.7 Installing Datalog Capability .................................. 5-32
5.8 Upgrade the Firmware ............................................ 5-34
6. THEORY OF OPERATION............................... 6-1
7. MAINTENANCE.................................................. 7-1
7.1 Battery Charging and Replacement .........................7-1
7.2 PID Sensor & Lamp Cleaning /Replacement............ 7-4
7.3 Sampling Pump ......................................................... 7-7
7.4 Turning on the UV Lamp.......................................... 7-9
8. TROUBLESHOOTING....................................... 8-1
8.1 Special Diagnostic Mode .......................................... 8-2
8.2 Troubleshooting Table ............................................ 8-10
APPENDIX A. QUICK REFERENCE GUIDE..... A-12
APPENDIX B. REPLACEMENT PARTS LIST ....B-12
APPENDIX C. TECHNICAL NOTES.................... C-12
APPENDIX D. APPLICATION NOTES................ D-12
APPENDIX E. LITERATURE REQUEST.............E-12
APPENDIX F. REQUEST FOR RETURN
AUTHORIZATION FORM .................................F-12
Main Contact Numbers.................... Outside Back Cover
iii
! WARNING !
- Do NOT proceed before reading -
This manual must be carefully read by all individuals
who have or will have the responsibility for using,
maintaining, or servicing this product.
The product will perform as designed only if it is used,
maintained, and serviced in accordance with the manufacturer's
instructions.
CAUTION!!
To reduce the risk of electric shock, turn off power
before removing the monitor cover. Disconnect the
battery before removing sensor module for service.
Never operate the monitor while the cover is removed.
Remove monitor cover and sensor module only in an
area known to be non-hazardous.
The model PGM-7600 equipment is classified as to
intrinsic safety for use in class I, division 1, groups A,
B, C, D, or non-hazardous locations only.
iv
Special Notes
-1-
When the MiniRAE 2000 Monitor is taken out from the
transport case and turned on for the first time, there
may be some residual organic or inorganic vapor
trapped inside the detector chamber. The initial PID
sensor reading may indicate a few ppm. Enter an area
known to be free of any organic vapor and turn on the
monitor. After running for several minutes, the
residual vapor in the detector chamber will be cleared
and the reading should return to zero.
-2-
The battery of the MiniRAE 2000 monitor will
discharge slowly even if it is turned off. If the monitor
has not been charged for 5-7 days, the battery voltage
will be low. Therefore, it is a good practice to always
charge the monitor before using it. It is also
recommended to fully charge the monitor FOR AT
LEAST 10 HOURS before first use. See Section 7 for
more information on battery charging and
replacement.
STATIC HAZARD:
Clean only with damp cloth.
DANGER RISQUE D'ORIGINE
ELECTROSTATIQUE:
Nettoyer uniquement avec un chiffon humide.
v
CAUTION:
For safety reasons this equipment must be operated
and serviced by qualified personnel only. Read and
understand instruction manual completely before
operating or servicing.
ATTENTION:
Pour des raisons de sécurité, cet équipment doit être
utilisé, entretenu et réparé uniquement par un
personnel qualifié. Étudier le manuel d’instructions en
entier avant d’utiliser, d’entretenir ou de réparer
l’équipement.
WARNINGS:
Use only RAE Systems battery packs, part nos. 012-
3050, 012-3051 or 012-3052. This instrument has not
been tested in an explosive gas/air atmosphere having
an oxygen concentration greater than 21%.
Substitution of components may impair intrinsic safety.
Recharge batteries only in non-hazardous locations.
AVERTISSEMENT:
Utiliser seulement l'ensemble de batterie RAE Systems,
la reference 012-3050, 012-3051 au 012-3052. Cet
instrument n’a pas été essayé dans une atmosphère de
gaz/air explosive ayant une concentration d’oxygène
plus élevée que 21%. La substitution de composants
peut compromettre la sécurité intrinsique. Ne charger
les batteries que dans emplacements désignés non-
dangereuse.
vi
CAUTION WARNINGS:
The calibration of all newly purchased RAE Systems
instruments should be tested by exposing the sensor(s)
to known concentration calibration gas before the
instrument is put into service.
For maximum safety, the accuracy of the MiniRAE
2000 should be checked by exposing it to a known
concentration calibration gas before each day’s use.
AVERTISSEMENT:
La calibration de toute instruments de RAE Systems
doivent être testé en exposant l’instrument a une
concentration de gaz connue par une procédure
diétalonnage avant de mettre en service l’instrument
pour la première fois.
Pour une securite maximale, la sensibilité du
MiniRAE 2000 doit être verifier en exposant
l’instrument a une concentration de gaz connue par
une procédure diétalonnage avant chaque utilisation
journalière.
vii
GENERAL INFORMATION
1. GENERAL INFORMATION
MiniRAE 2000 Portable VOC Monitor (Model PGM
7600) is a compact monitor designed as a broadband VOC
gas monitor and datalogger for work in hazardous
environments. It monitors Volatile Organic Compounds
(VOC) using a Photo-Ionization Detector (PID) with a 9.8
eV, 10.6 eV, or 11.7 eV gas discharge lamp. Features are:
• Lightweight and Compact
-Compact, light weight (19 oz.) and rugged design
-Built-in sample draw pump
• Dependable and Accurate
- Up to 10 hours of continuous monitoring with
rechargeable battery pack
- Designed to continuously monitor VOC vapor at ppm
levels
• User Friendly
-Preset alarm thresholds for STEL, TWA, low and high
level peak values. Audio buzzer and flashing LED
display are activated when the limits are exceeded.
• Datalogging Capabilities
-15,000 point datalogging storage capacity for data
download to PC
MiniRAE 2000 consists of a PID with associated
microcomputer and electronic circuit. The unit is housed
in a rugged ABS + PC case with a backlit 1 line by 8
character dot matrix LCD and 3 keys to provide easy user
interface.
1-1
GENERAL INFORMATION
1.1 General Specifications
Table 1.1
Portable VOC Monitor Specification
Size: 8.2"L x 3.0"W x 2.0"H
Weight: 19.5 oz with battery pack
Detector: Photo-ionization sensor with 9.8, 10.6,
or 11.7 eV UV lamp
Battery: A 4.8V /1250 mAH Rechargeable
Nickel Metal Hydride battery pack
(snap in, field replaceable)
Battery Charging: 10 hours charge through built-in
charger
Operating Hours: Up to10 hours continuous operation
Display: 1 line by 8 characters 5x7 dot matrix
LCD (0.4” character height) with LED
back light automatically in dim light
Range, Resolution & Response time (t90):
Isobutylene (calibration gas)
0-99 ppm 0.1 ppm 2 sec
100-1,999 ppm 1.0 ppm 2 sec
2000-10,000 ppm 1.0 ppm 2 sec
Measurement Accuracy (Isobutylene):
0 – 2000 ppm: ± 2 ppm or 10% of
reading.
> 2000 ppm: ± 20% of reading
PID Detector: Easy access to lamp and sensor for
cleaning and replacement
Correction Factors: Built-in 102 VOC gases
1-2
GENERAL INFORMATION
Calibration: Two-point field calibration of zero
and standard reference gas
Calibration Memory:
Store up to 8 separate calibration,
alarm limits and span value
Inlet Probe: Flexible 5” tubing
Keypad: 1 operation key and 2 programming
keys
Direct Readout: Instantaneous, average, STEL and
peak value, battery voltage and
elapsed time
Intrinsic Safety: UL & cUL Class 1, Division I, Group
A,B,C,D, Temperature Code T3C (US
& Canada); 0575 II 1G
DEMKO 02 ATEX 0204759
Eex ia IIC T4 (Europe)
EM Interference: No effect when exposed to 0.43
W/cm2 RF interference (5 watt
transmitter at 12 inches)
Alarm Setting: Separate alarm limit settings for Low,
High, STEL and TWA alarm
Operating Mode: Survey or Hygiene mode
Alarm: 90 dB buzzer and flashing red LEDs
to indicate exceeded preset limits, low
battery voltage, or sensor failure.
External Alarm: Optional plug-in pen-size vibration
alarm or remote alarm
Alarm Mode: Latching or automatic reset
1-3
GENERAL INFORMATION
Real-time Clock: Automatic date and time stamps on
data logged information
Datalogging: 15,000 points with time stamp, serial
number, user ID, site ID, etc.
Communication: Upload data to PC and download
instrument setup from PC through RS-
232 port
Sampling Pump: Internally integrated. Flow rate: 450-
550 cc/min.
Temperature: 0º to 45ºC (32º to 113ºF)
Humidity: 0 % to 95 % relative humidity
(non-condensing)
Housing: ABS + PC, conductive coating, splash
and dust proof, will withstand 1 meter
drop test with rubber boot
Attachment: Wrist strap, rubber boot and belt clip
1-4
OPERATION
2. OPERATION OF MINIRAE 2000
The MiniRAE 2000 Portable VOC Monitor is a compact
Monitor designed as a broadband VOC gas monitor and
datalogger for work in hazardous environments. It gives
real time measurements and activates alarm signals
whenever the exposure exceeds preset limits. Prior to
factory shipment the MiniRAE 2000 is preset with default
alarm limits and the sensor is pre-calibrated with standard
calibration gas. However, the user should test the
instrument and verify the calibration before the first use.
After the monitor is fully charged and calibrated, it is ready
for immediate operation.
Figure 2-1 MiniRAE 2000
2-1
OPERATION
2.1 Physical Description
The main components of the MiniRAE 2000 Portable
VOC monitor include:
• Three keys for user to interact with the monitor: 1
operation key and 2 programming keys for normal
operation or programming of the monitor
• LCD display with back light for direct readout and
calculated measurements
• Buzzer and red LED’s for alarm signaling whenever
the exposures exceed preset limits
• Wrist strap
• Charge contact for plugging directly to the charging
station
• Gas entry and exit ports
• Serial communication port for PC interface
• External alarm and analog output port
• Protective rubber cover
2-2
OPERATION
pp
2.2 Keys and Display
Figure 2.2 shows the LCD display and the keypad on the
front panel of the monitor. The function of the 3 keys
during normal operation are summarized below:
Light sensor
Alarm LED’s
Charge LED
0.0
Figure 2-2 LCD Display and Keypad
Key Function in Normal Operation
[MODE] -Turn on/off the power* and step through
menu items
[N/-] -Toggle on/off the back light, negative
acknowledge/decrement value
m
[Y/+] -Start measurement, positive
acknowledge/increment value
2-3
OPERATION
* Pressing and holding [MODE] key for 5 seconds turns
off the power to the monitor. Monitor will beep once per
second and display countdown timer during power-down
sequence. Press [MODE] key momentarily to step
through menu items. To save time, press any key during
message scrolling to skip to the end of the message.
2-4
OPERATION
2.3 Power On/Off
To turn on the MiniRAE 2000 portable VOC monitor,
press [MODE] key for one second and release. The audio
buzzer will beep once and the air pump will turn on. The
display will show “ON!..” and then “Ver n.nn” to indicate
the unit’s current firmware version number. Next displayed
are the serial number, the model number, Operating mode,
current date and time, unit internal temperature, gas
selected, high low, STEL, TWA/AVG alarm limits, battery
voltage, and shut off voltage. Also displayed are internal
mode settings such as User mode, Alarm mode, datalog
time remaining and log periods in the respective order.
To turn off the MiniRAE 2000 portable VOC monitor,
press and hold the [MODE] key for 5 seconds. The
monitor will beep once per second during the power-down
sequence with a count down timer showing the number of
remaining seconds. The message “Off!..” flashes on the
LCD display and the display will go blank indicating that
the monitor is turned off.
Data protection during power off
When the monitor is turned off, all the current real time
data including last measured value are erased. However,
the datalog data is preserved in non-volatile memory. Even
if the battery is disconnected, the datalog data will not be
lost. While the power is off, the real time clock will
continue to operate until the battery is completely drained
(usually in 4-5 days without any charging). If the battery
2-5
OPERATION
is completely drained or is disconnected from the monitor
for more than 30 minutes, the real time clock will be lost.
In this case, the user needs to enter the real time clock
information again, as described in Section 4, or send the
PC clock during configuration through the PC
communication.
2-6
OPERATION
2.4 Operation
The MiniRAE 2000 VOC monitor has two operation
modes: Survey and Hygiene mode. The Survey mode
allows the user to manually start and stop the
monitoring/measuring operation and display certain
exposure values. In the Hygiene mode, the monitor runs
continuously after the monitor is turned on. Refer to
Section 4.7.1 for switching between the two modes.
2-7
OPERATION
2.4.1 Survey Mode
After the monitor is turned on, it runs through the start up
menu. Then a message “Ready..” is displayed (see figure
below). At this point, the user has two options; 1) step
through the operation menu, or 2) take a measurement.
Ready …
Press the [MODE] key to cycle through the idle operation
menu. The PID sensor and pump are turned off during this
idle operation.
Main operation menu displays include:
• “Ready…”
• Avg reading
• Peak reading
• Run time
• Current battery voltage and shutdown voltage
• Date, time and temperature
• Log on/off?
• PC communication?
• Survey, Site ID and Gas Name
2-8
OPERATION
g
)
The displays are arranged in a “round robin” order:
To choose a specific display, press the [MODE] key one or
more times until the desired display appears.
SURVEY MODE MAIN MENU
Ready…
Survey
PC Comm?
Log On/Off?
11/18/98
10:30
T=70F
MODE
MODE
MODE
Y
MODE
Site ID = xx
Gas = xxxx
(Resets Peak
& Avera
Y
Reset
Peak?
Bat = 4.8V
Shut Down
at=4.2V
e
MODE
N
Y
Y
MODE
0.0 ppm
MODE
Stop?
MODE
Avg 0.0
MODE
Peak 0.0
MODE
Run time
00:00
Notes: The Site ID, Gas, Stop? ppm Reading and Stop?
screens are only shown after a measurement has been
started, not during idle operation. The Log On/Off? screen
is not shown when datalogging is disabled. The Ready
screen is skipped if the menu is cycled through while a
measurement is running.
More Details on the Main Operation Menu:
• READY: The monitor is ready to take a measurement.
Press the [MODE] key to advance to the next menu. Or
Press [Y/+] key to start a measurement (read “Taking a
Measurement” on page 2-11 for details).
2-9
OPERATION
• AVERAGE READING: The TWA or running
average since the start of the measurement (see Section
4.6.5 to change). The average is recalculated every
minute.
• PEAK READING: The highest instantaneous reading
since the start of the measurement. If [Y/+] is pressed
while the peak reading is displayed, the unit will ask
“Reset Peak?” If [Y/+] is pressed again, the peak value
will be cleared and the display will return to the
“Ready” message or instantaneous reading. The peak
reading is automatically reset when a new measurement
is started by pressing [Y/+] from the “Ready…” screen.
• RUN TIME: The current measurement has been last.
• CURRENT BATTERY VOLTAGE and SHUT
DOWN VOLTAGE: The present battery voltage is
displayed.
Note: A fully charged battery pack should show 4.8 volts
or higher. When the battery voltage falls below 4.4 volts, a
flashing “Bat” will appear as a warning message. There are
about 20-30 minutes of run time left before the monitor
turns off automatically, when the battery voltage falls
below 4.2 volts.
• DATE, TIME, TEMPERATURE: This menu
displays the current date (month/day/year), time (24hour format), and internal unit temperature in degrees
Fahrenheit.
• LOG ON/OFF? Allows the user to start datalogging of
the current measurement. A superscript “L” flashes in
the ppm measurement display when datalogging is on.
2-10
OPERATION
Note: Before datalogging can be turned on, this function
must be enabled as described in Section 4.6.4.
• PC COMMUNICATION: Allows the user to upload
data from the MiniRAE 2000 to a Personal Computer
(PC) or send/receive configuration information between
a PC and the MiniRAE 2000. Connect the monitor to a
serial port of a PC, and start the MiniRAE 2000
application software. Press the [Y/+] key and the LCD
displays “pause monitor, ok?” Press the [Y/+] key one
more time, the display shows “Comm...” The monitor
is now ready to receive commands from the PC.
• CURRENT OPERATING MODE: The monitor
displays the current operating mode e.g.; “Survey”, the
site ID, gas name and then returns to “Ready..”
To choose a specific display, press the [MODE] key one or
more times until the desired display appears.
Taking a measurement:
There are two ways to start a measurement. 1) Operating in
Hygiene mode. 2) Manually start and stop measurement in
Survey mode. To start a measurement in Hygiene mode,
please refer to Section 4.7.1 on “Change Op mode”. To
start a measurement in Survey mode, the MiniRAE 2000
monitor must first be in the “Ready…” mode. This is the
mode to which the monitor normally powers up.
Measurement phases:
• Ready
• Start measurement
• Measurement Display and datalogging
• Stop measurement
2-11
OPERATION
Ready
The unit is ready to start a measurement.
Start Measurement
Press the [Y/+] key to start the measurement cycle.
The display will show the site ID and then the gas selected
for measurement.
The pump will start and the reading will
be displayed. The peak and average values will be
automatically reset to zero.
Measurement Display and Datalog
Instantaneous readings of the gas concentration in parts per
million (ppm) are updated every second. A flashing
superscript “L” is displayed when datalogging is on.
Datalog information is saved only after one full datalog
period is completed (see Section 4.6.5).
Stop Measurement
Press the [MODE] key and the display shows “ STOP?”
Press [N/-] to continue measurement and [Y/+] to stop the
measurement and datalog event. The pump stops
automatically when measurement is stopped. Peak and
average values for the current measurement can be read in
idle mode until a new measurement is started.
Automatic Increment of Site ID
Every time a measurement is taken, the site ID will be
incremented by one automatically in Survey mode.
Variable Alarm Signal
If the measurement exceeds the low limit, the buzzer and
flashing alarm are activated. The frequency of the alarm is
proportional to the measurement value. At values above
the low alarm, the buzzer and LED will beep and flash
twice per second and above the high alarm limit, three
times per second (See Section 2.5).
2-12
OPERATION
2.4.2 Hygiene Mode
In Hygiene Mode, the unit will continuously taking
measurements, once the power is turned on. After the
initial start-up sequence displaying the current monitor
settings, the LCD displays the instantaneous readings.
The Hygiene operation menu displays include:
• Real time readings in ppm
• Current TWA/Avg, STEL and Peak values (see
Section 4.6.6)
• Run time
• Current battery voltage
• Date, time and temperature
• Log on/off?
• Gas name
• PC communication?
• Hygiene
Detailed description of most of these displays are the same
as Section 2.4.1.
2-13
OPERATION
HYGIENE MODE MAIN MENU
Hygiene
MODE
PC Comm?
MODE
Gas =
XXXXXXXX
MODE
Log On/Off?
XX.X ppm
Y
Reset
Peak?
MODE
TWA 0.0
MODE
STEL 0.0
MODE
Y
Peak 0.0
MODE
Run time
00:00
MODE
11/18/98
11:20
MODE
Bat = 4.8V
MODE
T=70F
To choose a specific display, press the [MODE] key one or
more times until the desired display appears, or the [Y/+]
key where indicated with a Y.
Note: To get back to instantaneous reading from any of
the above display, press [MODE] key repeatedly until the
“XX.X ppm” display appears.
2-14
OPERATION
2.5 Alarm Signals
During each measurement period, the gas concentration is
compared with the programmed alarm limits (gas
concentration alarm limit settings: Low, High, TWA and
STEL). If the concentration exceeds any of the preset
limits, the loud buzzer and red flashing LED are activated
immediately to warn the user of the alarm condition.
In addition, the MiniRAE 2000 will alarm if one of the
following conditions occurs: battery voltage falls below a
pre-set voltage level (4.4 V), failure of UV lamp, pump
stall, or when the datalog memory is full. When the low
battery alarm occurs, there will be approximately 20-30
minutes of operating time remaining. When the battery
voltage falls below 4.2 V, the monitor will turn off
automatically.
Alarm Signal Summary:
Condition Alarm Signal
Gas exceeds “High Alarm”
limit
Gas exceeds “Low Alarm”
limit
Gas exceeds “TWA” limit 1 Beeps/flashes per seconds
Gas exceeds “STEL” limit 1 Beeps/flashes per seconds
Pump failure 3 beeps/flashes per second plus
PID lamp failure 3 beeps/flashes per second plus
Low battery 1 flash per second, 1 beep per minute
Memory full 1 flash per second plus “Mem”
3 beeps/flashes per second
2 beeps/flashes per second
“Pump” message on LCD
“Lamp” message on LCD
plus “Bat” message on LCD
message on LCD
2-15
OPERATION
Alarm Signal Testing:
Under normal non-alarm conditions, it is possible to test
the MiniRAE 2000 LED and buzzer in Special Diagnostic
Mode (see Section 8 for details).
2-16
OPERATION
2.6 Preset Alarm Limits and Calibration
The MiniRAE 2000 portable VOC monitor is factory
calibrated with standard calibration gas, and is
programmed with default alarm limits. There are 102 gas
settings stored in the library. Some examples of
calibration and alarm limits are shown below. Refer to
Section 4 on programming procedures for selecting a
different gas, perform a calibration or set new alarm limits.
Factory Calibration and Preset Alarm Limits
Cal Gas Cal
Span
Isobutylene
Hexane, nXylene, mBenzene
Styrene
Toluene
Vinyl Chloride
Custom
unit
100 ppm 50 100 100 250
100 ppm 500 750 500 750
100 ppm 100 150 100 150
5 ppm 2 5 5 2
50 ppm 20 40 20 40
100 ppm 50 100 50 100
10 ppm 5 10 5 10
100 ppm 50 100 50 100
Low High TWA STEL
2-17
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