Rae ToxiRAE PGM-30 Operation And Maintenance Manual

ToxiRAE

POCKET PID

PGM-30

OPERATION AND MAINTENANCE

MANUAL

(Document No.: 007-4001-004)

Rev. E

RAE SYSTEMS INC.

3775 N. First St.

San Jose, CA 95134-1708

May 2005

RAE Systems Product Line

 Gas Detection Tubes & Pumps

 SampleRAE Electronic Tube Pumps
 D-RAE Combustible/O

S/CO Monitors

2/H2

 AreaRAE Wireless Multi-gas Monitors
 MultiRAE PLUS Multi-gas Monitors
 Q-RAE Confined Space Monitors
 VRAE Five Gas Surveyors
 MiniRAE 2000 Portable VOC Monitor
 ppbRAE Parts Per Billion Monitors
 UltraRAE Specific Compound Monitors
 ToxiRAE PLUS PID Monitors
 ToxiRAE PLUS Single Gas Monitors
 ToxiRAE PLUS Oxygen Monitors
 ToxiRAE PLUS Combustible Monitors
 ModuRAE Fixed System PID
 MiniRAE PLUS Classic Monitor

How can I be informed and updated?

Be sure to mail in your warranty card via email, post or fax
to get on RAE’s private database (information is never
supplied to others).

You will be updated on new products, technical advisory
notices, new accessories and much more. Thank you for
your purchase!

IMPORTANT!

Note: RAE Systems’ updated firmware version V1.30

and above for the ToxiRAE PID (PGM-30)

requires the new lamp so when ordering
replacement lamps please use part #050-0040-000.
The ToxiRAE PID (PGM-30) with firmware
version V1.27 and below requires the standard
lamp, please use part #050-0010-000 when
ordering replacement lamps.

Thank you.
RAE Systems

Table of Contents

1. GENERAL INFORMATION............................................ 1-1

1.1 General Specifications.....................................................1-2

2. OPERATION OF TOXIRAE............................................ 2-1

2.1 Physical Description........................................................2-2

2.2 Keys and Display.............................................................2-4

2.3 Power On/Off...................................................................2-6

2.4 Operations........................................................................2-8

2.5 Alarm Signals ................................................................2-11

2.6 Backlight........................................................................2-14

2.7 Preset Alarm Limits and Calibration.............................2-15

2.8 Datalogging....................................................................2-16

3. OPERATION OF CHARGING STATION .................... 3-1

4. PROGRAMMING OF TOXIRAE................................... 4-1

4.1 Menu Options ..................................................................4-2

4.2 Keys for Programming Mode..........................................4-4

4.3 Entering into Programming Mode...................................4-5

4.4 Calibration of ToxiRAE Unit ..........................................4-7

4.4.1 Zero Gas Calibration .................................................4-8

4.4.2 Standard Reference Gas (Span Gas) Calibration.....4-10

4.4.3 Standard Reference Gas (Span Gas) Check.............4-12

4.4.4 Enter Standard Calibration Gas Value.....................4-14

4.5 Set Alarm Limits............................................................4-16

4.5.1 Set TWA Alarm Limit.............................................4-17

4.5.2 Set STEL Alarm Limit ............................................4-18

4.5.3 Set Low Alarm Limit...............................................4-19

4.5.4 Set High Alarm Limit..............................................4-20

4.6 Set Datalog Options.......................................................4-21

4.6.1 Clear Data Memory .................................................4-22

4.6.2 Set Datalogging Period............................................4-23

4.7 Set Real Time Clock......................................................4-24

4.7.1 Set Year ...................................................................4-25

4.7.2 Set Month ................................................................4-26

4.7.3 Set Day ....................................................................4-27

4.7.4 Set Hour...................................................................4-28

4.7.5 Set Minute................................................................4-29

4.8 Gas Correction Factor....................................................4-30

4.8.1 Select Gas................................................................4-31

4.8.2 Modify Correction Factor........................................4-32

i

4.9 Setup Instrument............................................................4-33

4.9.1 Set User ID ..............................................................4-34

4.9.2 Set Site Number.......................................................4-35

4.10 Exit Programming Mode ...............................................4-36

5. COMPUTER INTERFACE FOR ToxiRAE.................... 5-1

5.1 Install ProRAE-Suite Software........................................5-2

5.2 Connect ToxiRAE 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 to the ToxiRAE .......................5-17

5.5.3 Receiving Configuration Data................................. 5-18

5.5.4 Configuring All Settings..........................................5-19

5.6 Processing the Logged Data ..........................................5-20

5.6.1 Receiving Data ........................................................5-21

5.6.2 View Logged Data in Text Mode............................ 5-22

5.6.3 View STEL/TWA/AVG Value................................5-24

5.6.4 View Summary Information....................................5-25

5.6.5 View Logged Data in Graph Mode .........................5-26

5.6.6 Export the Displayed Data to a Text File ................5-30

5.6.7 Exporting Graph to a File........................................5-31

5.6.8 Print the Logged Data..............................................5-32

5.6.9 Upgrade the Datalog Option....................................5-33

6. THEORY OF OPERATION ............................................. 6-1

7. MAINTENANCE................................................................ 7-1

7.1 Battery Charging and Replacement.................................7-2

7.2 Sensor Module Cleaning..................................................7-5

7.3 Lamp Cleaning and Replacement....................................7-7

8. TROUBLESHOOTING..................................................... 8-1

8.1 Special Diagnostic Mode.................................................8-1

8.2 Troubleshooting Table.....................................................8-3

APPENDIX A. REFERENCE OF DISPLAY MODE……..A-1
APPENDIX B. REFERENCE OF PROGRAM MODE…...B-1
APPENDIX C. RESPONSE INFORMATION………….….C-1
APPENDIX D. RAE SYSTEMS TECHNICAL NOTES…..D-1
APPENDIX E. RAE SYSTEMS APPLICATION NOTES..E-1
Main Contact Numbers...………………...…Outer Back Cover

ii

WARNING

-DO NOT PROCEED WITHOUT 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
SENSOR CAP AND SENSOR MODULE FOR
SERVICE. NEVER OPERATE THE UNIT WHILE
THE CAP IS REMOVED. REMOVE SENSOR CAP
AND SENSOR MODULE ONLY IN AN AREA
KNOWN TO BE NON-HAZARDOUS.

TO REDUCE THE RISK OF IGNITION OF
HAZARDOUS ATMOSPHERES, RECHARGE
BATTERY ONLY IN AREA KNOWN TO BE NON
HAZARDOUS.

iii

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.

WARNING:

Use only RAE Systems battery packs, part nos. 500­0021 or 500-0022. 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 500-0021 au 500-0022. 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
dangereux

.

iv

WARNING:

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 used or put into service.

For maximum safety, the accuracy of the ToxiRAE
should be checked by exposing the sensor(s) to 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

dietalonnage avant de mettre en service l’instrument

pour la première fois.

Pour une securite maximale, la sensibilité du

ToxiRAE doit être verifier en exposant l’instrument a

une concentration de gaz connue par une procédure

dietalonnage avant chaque utilisation journalière.

v

Special Note

-1-

When the PGM-30 Pocket PID is taken out from the
transport case and turned on for the first time, there
may be some residual organic vapor trapped inside the
ionization chamber. The initial reading may indicate a
few ppm. Enter an area known to be free of any
organic vapor and turn on the unit. After running for
several minutes, the residual vapor in the sensor
chamber will be cleared and the reading should return
to zero.

-2-

The battery of the ToxiRAE unit will discharge slowly
even if it is turned off. If the unit has not been charged
for 5-7 days, the battery voltage will be low. Therefore,
it is a good practice to always leave the unit in the
charger so that it is fully charged and ready for
immediate use. It is also recommended to fully charge
the unit FOR AT LEAST 4 HOURS before first use
(see Section 3.0 for more information).

vi

GENERAL INFORMATION

1. GENERAL INFORMATION

ToxiRAE is a programmable pocket Photo-Ionization
Detector (PID) designed to provide continuous exposure
monitoring of toxic gases for workers in hazardous
environments. It monitors two classes of toxic gases: (1)
organic vapors with the supplied 10.6 eV gas discharge
lamp, and (2) chlorinated compounds with the
interchangeable 11.7 eV lamp available as an optional
accessory. Features are:

 Lightweight and Compact

-6.4 oz, pocket size

 Dependable and Accurate

-12 hours monitoring with micro controller

 User Friendly

-menu driven, intuitive end-use operation

 Programmable Alarm Thresholds

-audio buzzer & flashing display alarm

ToxiRAE (PGM-30K) consists of: A Pocket PID unit, a
single station charging unit, plus calibration accessories.

1 - 1

GENERAL INFORMATION

1.1 General Specifications

Table 1.1

Pocket PID Unit Specification

Dimensions 6.0"L x 1.75"W x 1.0"H

Weight 6.4 oz with battery

Detector Electrodeless 10.6 eV ultraviolet

discharge lamp with Teflon stainless
steel chamber

Battery Rechargeable, 2.4V/900 mAh, Ni-CD

battery pack or alkaline battery
adapter

Operating Time 12 hours continuous operation

Attachment Belt/Pocket clip

Display 8 digit LCD with LED backlight

Range 0 to 99.0 ppm with 0.1 ppm resolution

100 to 2000 ppm with 1 ppm
resolution

Accuracy +/- 2 ppm or +/- 10% of reading

calibrated to 100 ppm isobutylene

Response Time <10 seconds to reach 90% point when

exposed to 100 ppm isobutylene

(continue)

1 - 2

GENERAL INFORMATION

Pocket PID Unit Specification

(continued)
Keypads 1 operation key and 2 programming

keys

Alarm Settings Separate alarm limit settings for

TWA, STEL, Low and High alarm

Alarm 90 dB buzzer and flashing red LED to

indicate exceeded preset limits, low
battery, or lamp failure

Calibration Two point field calibration for zero

gas and standard reference gas

Protection Password protected calibration

settings, alarm limits and data

Data Storage 4000 readings in non-volatile memory

(programmable period)

Temperature -10o to 40oC (14o to 104oF)

Humidity 0 to 95% relative humidity

(non-condensing)

1 - 3

GENERAL INFORMATION

Table 1.2

Single-unit Charging Station Specification

Dimension 2.5"L x 2"W x 3.5"H

Weight 4.1 oz.

Charging Capacity 1 slot to charge a ToxiRAE Pocket

PID plus 1 auxiliary connector to
charge a spare Ni-Cd battery pack

Power Source 110VAC or 6V DC

Charging Time 4 hours to full charge

Charge Status Three-color LED to indicate charging

(red), ready (green), discharge
(amber) and not charging (off)

Safety Control Two step constant voltage / constant

current charging to prevent
overcharging

1 - 4

OPERATION OF TOXIRAE

2. OPERATION OF TOXIRAE

The ToxiRAE PID Unit is a pocket size organic vapor
exposure monitor/sampler. It gives the real time
measurements and activates alarm signals whenever the
exposure exceeds preset limits. Prior to factory shipment
the ToxiRAE is preset with default alarm limits and the
sensor is pre-calibrated with 100 ppm isobutylene gas.
However, the user should calibrate the instrument before
the first use. After the unit is fully charged and calibrated,
it is ready for immediate operation.

2 - 1

OPERATION OF TOXIRAE

2.1 Physical Description

Figure 2.1 shows the main components of the ToxiRAE
Pocket PID Unit which includes:

 3 keys for user to interact with the unit: 1 operation

key and 2 programming keys for normal operation
or programming of the unit

 LCD display with back light to show real time and

calculated measurements

 Buzzer and red LED for alarm signal whenever the

exposures exceed preset limits

 Clip for attachment to the user's pocket, lapel or belt

 Battery contact for plugging directly to the charging

station

 Gas entry port sensor cap
 Infrared communication port for PC interface

(optional)

2 - 2

OPERATION OF TOXIRAE

Figure 2.1 Major Parts of the ToxiRAE

Pocket PID Unit

2 - 3

OPERATION OF TOXIRAE

2.2 Keys and Display

Figure 2.2 shows the LCD display and the keypad on the
front panel of the unit. The function of the 3 keys during
normal operation are summarized below:

Figure 2.2 Key-pad and Display of the ToxiRAE

Pocket PID Unit

Table 2.1

Key Function in Normal Operation

[MODE] -Turn on/off the power* and choose

different display mode

[N/-] -Toggle on/off the back light
[Y/+] -Alarm test and alarm acknowledge (turn off

latched alarm

* Pressing and holding [MODE] key for 5 seconds turns
off the power to the unit. Unit will beep once per second
during power-down sequence. Press [MODE] key
momentarily to choose different display modes (see
Section 2.4 for details).

2 - 4

OPERATION OF TOXIRAE

The Pocket PID includes an 8-digit dot matrix LCD
display. The LCD show the following eight types of
displays during normal operation:

 Real time gas concentration in ppm

 Time weighted average (TWA) value of the gas

concentration in ppm

 Short term exposure level (STEL) of the gas

concentration in ppm

 Peak gas concentration in ppm

 Battery voltage in volts

 Run time in hours and minutes

 "Log On/Off?" menu to enable/disable datalogging,

(only in datalog version of PGM-30D)

 "PC Comm?" menu to send or receive data between

PC and the ToxiRAE unit

2 - 5

OPERATION OF TOXIRAE

2.3 Power On/Off

To turn on the ToxiRAE Pocket PID Unit, press
[MODE] key. The audio buzzer will beep once and the

display show "ON!.." and then "Ver n.nn" to indicate the
software version number. The serial number of the unit is
displayed next. The unit will then go through a self­diagnostic routine to check the key components of the unit.
A "Diagnose" message is displayed with red backlight
turned on while the self-diagnostic routine is executing.
The red LED will flash once and the buzzer will beep once
to ensure that they are functional.

The unit next displays the four preset alarm limits, battery
voltage and available data storage memory (in percentage).
After about 20 seconds, the display shows the
instantaneous reading of the gas concentration in ppm and
is ready to monitor gas concentration.

To turn off the ToxiRAE Pocket PID Unit, press and hold

[MODE] key for 5 seconds. Unit will beep once per

the
second during power-down sequence. The message
"Off!.." flashes on the LCD display and the display, goes
blank indicating that the unit is turned off. When the unit
is turned off, all the current real time data including TWA,
STEL, Peak and run time are erased. However, the datalog
data is preserved in non-volatile memory for data down
load at a later time. The current date and time of day are
also preserved, as long as the batteries have sufficient
charge.

2 - 6

OPERATION OF TOXIRAE

Datalog versus Non-Datalog unit

There are two versions of PGM-30 Pocket PID: Datalog
unit and Non-Datalog unit. During power on sequence, if
there is a letter “D” follows the version number indicates
that the unit is configured as a Datalog unit. Without the
letter “D,” it is a Non-Datalog unit.

User can upgrade a Non-Datalog unit to a Datalog unit.
Call factory for information on how to order the upgrade
kit and follow the instructions described in Section 5.13 to
enable or disable the datalog feature for the unit.

2 - 7

OPERATION OF TOXIRAE

2.4 Operations

In the normal operations, the ToxiRAE Pocket PID Unit
displays six different readings: Instantaneous gas
concentration, TWA, STEL, Peak in ppm, battery voltage
in volt and run time in hours and minutes. In addition,
there are two more displays to enable or disable
datalogging operation (only in datalog version of PGM­30D) and to communicate with a PC. Here is a brief
explanation of each display:

1) The instantaneous reading is the actual gas
concentration in parts per million (ppm). The reading is
updated once per second and is shown as "nn.n ppm" in the
LCD display.

2) The TWA reading is the accumulated reading of the gas
concentration divided by 8 hours since the unit was turned
on. The reading is updated once a minute and is shown as
"TWA nn.n" in the LCD display.

2) The STEL reading is the last 15 minute average reading
of the gas concentration. The reading is updated once per
minute and is shown as "STEL nn.n" in the LCD display,
for the first 15 minutes “STEL****” will be displayed.

4) The Peak reading is the maximum reading of the gas
concentration since the unit was turned on. The reading is
updated at one second intervals and is shown as "Peak
nn.n" in the LCD display.

2 - 8

OPERATION OF TOXIRAE

5) The battery voltage reading is the current battery
voltage in volts. The reading is updated once per second
and is shown as "Bat=2.4V" in the LCD display.
Note: a fully charged battery pack should show 2.8 volts or
higher. When the battery voltage falls below 2.2 volts, a
flashing "Bat" appears as a warning message. When the
battery voltage falls below 2.0 volts, the unit will be turned
off automatically.

6) The run time reading is the accumulated "On" time in
hours and minutes since the unit was turned on. The
reading is updated at one minute interval and is shown as
"Run Time" and "nn:nn" on the LCD display.

7) The Log On/Off? menu prompts the user to turn on or
off datalogging. To turn on datalogging, press the [Y/+]
key while “Log On?” is displayed. Likewise, datalogging
can be turned off by pressing the [Y/+] key while “Log
Off?” is displayed. This display appears only on datalog
units (PGM-30D).

8) The PC comm? menu (units with datalog option)
display allows user to up load data from the ToxiRAE to a
Personal Computer (PC) or down load configuration
information from a PC to the ToxiRAE. Press the [Y/+]
key to place the unit into communication standby mode,
the LCD displays "Ready..." Place the unit into the
charger and connect the charger to the serial port of a PC.
The unit is ready to receive any command from PC.

2 - 9

OPERATION OF TOXIRAE

Note: When the unit is in communication standby
mode, it stops monitoring the gas concentration
and stops datalogging. Datalogging must be
manually restarted, if unit is in manual log mode.

Press the [MODE] or [N/-] key to exit the communication
standby mode and move to the next display, which shows
instantaneous readings.

To choose a display:

These eight displays are arranged in a "round robin" order:

instantaneous => TWA => STEL => Peak =>
battery voltage=> Run time => Log On(Off)? =>
PC comm? => instantaneous

To choose a specific display, press the [MODE] key one or
more times in normal operation mode until the desired
display appears. For example, to display the STEL
reading, press [MODE] key twice, and so on.

Display time out

In all displays (except the instantaneous reading) the
display will automatically change to the instantaneous
reading after a one-minute interval if no key is pressed.

2 - 10

OPERATION OF TOXIRAE

2.5 Alarm Signals

The built-in microcomputer constantly updates and
monitors gas concentration and compares it with the
programmed alarm limits (TWA, STEL, and two
instantaneous gas concentration alarm limit settings: Lo &
Hi). Whenever the concentration exceeds any of the preset
limits, the loud buzzer and red flashing LED are activated
immediately to warn user of the alarm condition.

In addition, when the battery voltage is below a pre-set
voltage level (2.2 V), UV lamp or the sensor module fails
or datalog memory is full, the unit also activates the buzzer
and red LED. When the low battery alarm occurs, there is
approximately 20-30 minutes of operating time remaining.
When the battery voltage falls below 2.0 V, the unit will
turn off automatically.

Alarm Signal Disabled: It is extremely important
to note that during the following conditions, the
alarm signals are disabled:

1) When entering PC communication standby
mode.

2) When entering calibration mode.

During these two modes of operation, real time monitoring
of the gas concentration stops. None of the gas
concentrations will be calculated, including; Peak, STEL
and TWA.

2 - 11

OPERATION OF TOXIRAE

Alarm Signal Latching:

It is possible to setup the ToxiRAE from a PC so that when
an alarm condition occurs, the alarm signals stay on even
after the alarm condition is no longer present. This is
called "latching alarm" mode. The alternative mode is to
automatically reset the alarm signal when the alarm
condition is absent. This is the default alarm mode (see
Section 5.0 for details on how to set alarm mode).

Alarm Signal Summary:

The various alarm signals are summarized here:

Condition Alarm Signal

Gas exceeds “Hi

3 beeps/flashes per second
Alarm” limit
Gas exceeds “Lo

2 beeps/flashes per second
Alarm” limit
Gas exceeds STEL 1 beep/flash per second
Gas exceeds TWA 1 beep/flash per second
Pump (fan) failure 3 beeps/flashes per second

plus "Fan" message on LCD
Sensor (lamp)
failure

3 beeps/flashes per second

plus "Lmp" message on LCD
Low battery 1 beep/flash per minute plus

"Bat" message on LCD
Memory full 1 beep/flash per minute plus

"Mem" message on LCD

2 - 12

OPERATION OF TOXIRAE

Alarm Signal Testing:

Under normal non-alarm condition, it is possible to test the
ToxiRAE LED, buzzer and backlight by pressing the [Y/+]
key momentarily. The buzzer will beep and the LED and
backlight will flash once to indicate that these alarm
signals are functioning correctly.

WARNING:

THE ALARM SIGNALS ARE DISABLED

DURING PC COMMUNICATION OR

CALIBRATION OPERATION. TO REDUCE

THE RISK OF EXPOSURE TO HAZARDOUS

ATMOSPHERES, PERFORM PC

COMMUNICATION OR CALIBRATION ONLY

IN AREA KNOWN TO BE NON HAZARDOUS.

2 - 13

OPERATION OF TOXIRAE

2.6 Backlight

The LCD display is equipped with a red LED backlight to
assist in reading the display under poor lighting conditions.
Pressing and holding the [N/-] key for one second in
normal operation can turn on this backlight. Pressing the
[N/-] key a second time turns off the backlight.

Note: The LED backlight consumes a higher amount of
energy from the battery and shortens the operating time of
the unit. Therefore, the backlight will automatically turn
off after 30 seconds.

2 - 14

OPERATION OF TOXIRAE

2.7 Preset Alarm Limits and Calibration

The ToxiRAE Pocket PID Unit is factory calibrated with
standard isobutylene gas, and is programmed with default
alarm limits as listed below. Refer to Section 4 for
programming procedures if new calibration or alarm limits
are required.

Table 2.2

Factory Calibration and Preset Alarm Limits

Calibration standard gas 100 ppm isobutylene

TWA Alarm Limit 10 ppm

STEL Alarm Limit 25 ppm

Lo Alarm Limit 50 ppm

Hi Alarm Limit 100 ppm

2 - 15

OPERATION OF TOXIRAE

2.8 Datalogging

ToxiRAE Pocket PID Unit calculates and stores the gas
readings based on user specified data logging period and
the type of measurement. Three types of gas
measurements (minimum, average, and maximum
concentration) can be stored, at each datalogging period.
The datalogging period can be programmed from one
second to 60 minutes in one-second increments. In
addition, a time stamp, a user ID, a site number, serial
number, last calibration and check date, and alarm limits
are also stored. All data is retained in non-volatile memory
so it can be down loaded at a later time to a PC, even if the
unit was turned off.

There are several ways to initiate the datalogging
operation. The user can choose to start datalogging
automatically when the unit is turned on and off.
Datalogging can be manually started and stopped by
pressing a key. The user can further choose to start and
stop datalogging based on a preset time schedule.

All datalogging options and modes can be programmed
with a PC and down loaded to the unit.

2 - 16

OPERATION OF TOXIRAE

Start/stop datalogging manually
If manual datalogging mode has been selected, from the
normal operation menu, toggle through the menu using the
[MODE] key until the Log On/Off? prompt is displayed.
Pressing the [Y/+] key while “Log On?” is displayed, turns

on datalogging and displays a"" symbol in front of the
"ppm" to inform user that the datalogging is on. Likewise,
pressing the [Y/+] key while “Log Off?” is displayed, turns
off datalogging and causes the "" symbol to disappear.
Pressing the [MODE] or [N/-] key, while prompted with
“Log On/Off?”, will not cause any change in datalogging
status. All other modes of datalogging will start and stop
automatically without any user intervention.

Automatic Datalogging
Datalogging is automatically started at the end of each
“datalogging period” when the unit is turned on.

Scheduled Start/Stop Datalogging
Data logging starts at a specific date and time, and logs
data at the “datalogging period” rate. When the “stop date
and time” is reached, the unit stops datalogging. This
mode, as others, requires that the unit be turned on first
before the datalogging can start.

Periodic Start/Stop Datalogging
Data logging starts daily at a specific time, and logs data at
the “datalogging period” rate. When the “stop time” is
reached, the unit stops datalogging. This mode, as others,
requires that the unit be turned on first before the
datalogging can start.

2 - 17

OPERATION OF TOXIRAE

Datalogging indicator
If datalogging is on, a small "" symbol is displayed before
the letter "ppm" to indicate the datalogging status.

Datalogging pause

Under the following conditions, the datalogging will be
paused automatically:

1) When entering programming mode, datalogging will
stop. Upon exiting the programming mode, the
datalogging will resume.

2) When entering PC Communication standby mode,
datalogging will stop. Upon exiting the PC
communication standby mode, datalogging will restarted

only if datalogging mode was set to automatic
mode.

2 - 18

OPERATION OF CHARGING STATION

3. OPERATION OF CHARGING STATION

The charging station includes:

 Auxiliary connector for charging a spare battery pack

of the Pocket PID

 An AC to 6V DC wall mount adapter for 110 V AC

power source

 Tri-colored LED for charging status indication of the

charger:

Red -battery is being charged
Green -charging is completed
Amber -battery is being discharged
No Light -bad connection or defective battery

 Infrared transceiver and serial cable for connecting the

ToxiRAE to the serial port of a PC

3 - 1

OPERATION OF CHARGING STATION

Figure 3.1 Single Unit Charging Station

3 - 2

OPERATION OF CHARGING STATION

Charging Station Operation Procedures

1. Connect the AC adapter (or the optional automotive

charging adapter) to the charging station.

2. With the Pocket PID front cover facing the same

direction as the front label of the charging station, as
shown in Figure 3.1, place the Pocket PID into the slot.

3. To charge a spare battery pack, connect the battery

directly to the charging station by plugging it into the
small jack on the back of the station.

4. The LED should be red in color when charging. If the

battery is fully charged, the LED will change from red
to green. The red color indicates that the battery is
being charged. The green color indicates that the
battery is fully charged. A completely discharged
Pocket PID or a spare battery will be charged to full
capacity automatically within 4 hours.

Note: The charging station is designed to charge one
ToxiRAE or one spare battery. Therefore, if a ToxiRAE
and a spare battery are plugged into the charging station
simultaneously, it will take twice as long to charge both
batteries.

3 - 3

OPERATION OF CHARGING STATION

The battery of the ToxiRAE unit will be drained slowly
even if the unit is turned off. If the unit has not been
charged for 4-5 days, the battery voltage will be low. The
charging circuit is designed to prevent over charging.
Therefore, it is good practice to always leave the unit in the
charger when it is not in use so that it is fully charged and
ready for immediate use.

The factory-supplied battery is designed to last for 12
hours of normal operation for a new battery under the best
condition. As the battery becomes older or is subject to
adverse conditions, the battery capacity will be reduced
significantly.

Charger Time Out

The battery charger has a built-in time out timer. After the
battery has been charged for 4 hours, it will automatically
switch to trickle charge mode and turn on the green LED to
prevent over charging the battery. It will not switch back
to charging mode unless the unit is lifted from the charger
and set down again to reset the timer. Since the charger
reverts to trickle mode, the ToxiRAE will not operate
indefinitely if left turned on in the charger, but should
operate 30-40% longer than when the battery is fully
charged.

3 - 4

OPERATION OF CHARGING STATION

Discharging the battery:

Ni-CD batteries are known to have a memory effect, i.e. if
the battery has not been fully discharged before it is
charged again, it will lose some of its capacity. Therefore,
it is necessary to completely discharge the battery from
time to time in order to recover full capacity. The charging
station provides a means to manually discharge the Ni-CD
battery.

Inside the opening of the charger, near one corner of the
bottom plate, there is a small hole. Insert a pencil or ball
point pen to press a switch inside the hole. This sets the
unit into discharge mode and turns on the amber colored
LED. Place the ToxiRAE into the charger and the Ni-Cd
battery will be completely discharged in about one hour.
The charger will automatically switch from discharging
mode to charging mode (LED changes from amber to red)
when the battery is fully discharged.

3 - 5

OPERATION OF CHARGING STATION

Alkaline battery adapter

An alkaline battery adapter is supplied with each ToxiRAE
kit. It accepts two AAA size alkaline batteries and can be
used in place of the Ni-Cd battery pack to provide
approximately 8-9 hours of operation. The adapter is
intended for use in emergency situations when there is no
time to charge the Ni-Cd battery

The charging station is designed to prevent damage to
alkaline batteries and the charging circuit.

Note: The AAA Alkaline battery adapter is
intrinsically safe!

WARNING:

TO REDUCE THE RISK OF IGNITION OF

HAZARDOUS ATMOSPHERES, RECHARGE

BATTERY ONLY IN AREA KNOWN TO BE

NON HAZARDOUS. REMOVE AND

REPLACE BATTERY ONLY IN AREA

KNOWN TO BE NON HAZARDOUS.

3 - 6

PROGRAMMING OF TOXIRAE

4. PROGRAMMING OF TOXIRAE

The ToxiRAE Unit is built with a microcomputer to
provide programming flexibility for the user. Authorized
users can re-calibrate the unit, change the alarm limits,
change site number, user ID, datalogging period, real time
clock, etc.

Programming is menu-driven to provide intuitive end-use
operation. The display shows the menu options, and the
keypad is used for menu selection and data entry.

Note: The real time monitoring of the gas concentration
continues while in the programming mode. However,
during the calibration procedure, the real time monitoring
will pause until the calibration is completed. In addition,
entering the programming mode will pause datalogging
operation automatically. After exiting the programming
mode, datalogging operation will resume.

4 - 1

PROGRAMMING OF TOXIRAE

4.1 Menu Options

The programming mode provides seven menu options as
shown in Table 4.1. Each menu includes various sub­menus to perform additional programming functions. The
first menu option allows entry into the programming mode
by keying-in a four-digit password. Once inside the
programming mode, menu options two through seven can
be viewed by pressing the [N/-] repeatedly until the desired
option is displayed. To enter a particular menu, press
[Y/+] key, the sub-menu will be displayed. To exit the
programming mode, press the [MODE] key at any of the
seven menu options.

Table 4.1

Menu Option Display

1 Verify password Code0000
2 Calibrate instrument Calib?
3 Set alarm limits Alarm?
4 Set datalogging options Data?
5 Set real time clock Clock?
6 Gas correction factor Gas?
7 Setup instrument Setup?

Note: Each of the six menu items has various numbers of
sub-menus. Appendix A shows a more detailed menu tree
structure.

4 - 2

PROGRAMMING OF TOXIRAE

User Mode

There are two user modes to allow a user to control the
access to the programming menu. If the user mode is set to
“display,” then a user cannot enter programming menu at
all. If the user mode is set to “program”, then a user can
enter programming mode. The user mode must be set
using a PC (see Section 5.0 for details on setting up the
user mode).

Security Level

There are three levels of security in the ToxiRAE
programming mode to provide further protection against
un-unauthorized changes to the instrument alarm settings
and other settings. The level 2 security allows a user to
enter programming mode without any password checking.
This is the default security setting. The level 1 security
requires a 4-digit password to enter programming. Level 0
security allows a user to enter the programming mode
without any password checking, as the level 2. However,
it does not allow a user to save any changes to the alarm
limits, real time clock, gas selection, correction factor, user
ID or site numbers. A user can still perform calibration
with level 0 security. The security level must be set using
a PC (see Section 5.0 for details on setting up the security
level).

4 - 3

PROGRAMMING OF TOXIRAE

4.2 Keys for Programming Mode

The three keys perform a different set of functions during
the programming mode as summarized below.

Table 4.2

Key Function in Programming Mode

[MODE] Exit menu when press momentarily or

exit data entry mode when pressed and
held for 1 second

[Y/+] Increase numerical value for data entry

or confirm (yes) for a question

[N/-] Decrease numerical value for data entry

or deny (no) for a question

4 - 4

PROGRAMMING OF TOXIRAE

4.3 Entering into Programming Mode

1. Turn on the ToxiRAE unit (refer to Section 2.3 for the

power on sequence).

2. Press and hold down both [MODE] and [N/-] keys for

three seconds to enter programming mode. Note: this
is to prevent user entering programming mode by
accident.

3. If the security level is 0 or 2, after holding down 2 keys

for 3 seconds, the unit should enter the programming
mode and the first menu item "Calib?" will be displayed.
If the user mode is “display”, the unit will show
"Display.." and return to normal display of
instantaneous readings.

4. If the security level is 1, after holding down the two

keys for three seconds, the display will show
"Code0000” with the left-most digit flashing. User
should enter a password starting from this flashing
digit.

Note 1: Prior to factory shipment the ToxiRAE unit was

installed with "0000" as the default password.

Note 2: For added security, "0000" is always displayed

instead the actual password at this step.

4 - 5

PROGRAMMING OF TOXIRAE

5. If the correct digit value is not "0", use [Y/+] key or

[N/-] key to increase or decrease the digit value. Then
press [MODE] key momentarily to confirm the digit
value.

- Display shows the actual digit entered and moves the
flashing cursor to the next digit (to the right)

6. Repeat Step 4 until all four digits are entered. Press

and hold [MODE] key for one second.

7. If the entered password is correct, the unit enters the

programming mode. The first menu item "Calib?" will
be displayed.

8. If the password is incorrect, the display shows

"Code????" and returns to instantaneous reading
display.

4 - 6

PROGRAMMING OF TOXIRAE

4.4 Calibration of ToxiRAE Unit

CALIBRATION 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 used or put into service.

For maximum safety, the accuracy of the ToxiRAE should

be checked by exposing the sensor(s) to known

concentration calibration gas before each day’s use.

In programming mode, the user may re-calibrate the
ToxiRAE Unit. This is a two-point calibration process
using "zero gas" and the standard reference gas. First, a
"zero gas" which contains no detectable organic gases or
vapors is used to set the zero point. Then a standard
reference gas, which contains a known concentration of a
given gas, is used to set the second point of reference (also
known as span gas). The two-point calibration procedure
is detailed below. Table 4.2 shows the sub-menus for
calibration operations.

Table 4.2

Sub-Menu Option Display

1 Zero gas calibration Zero?
2 Span gas calibration Span?
3 Span gas check Check?
4 Span gas value Cal Gas?

4 - 7

PROGRAMMING OF TOXIRAE

4.4.1 Zero Gas Calibration

This procedure determines the zero point of the sensor
calibration curve. To perform zero gas calibration, the
calibration adapter, a gas bottle and a bottle of "zero" air.
(optional) are required. The "zero" air is clean dry air
without any organic vapor or impurities. If such an air
bottle is not available, any clean ambient air without
detectable contaminant can also be used. A charcoal filter
should be used if one is not sure of the ambient air’s purity.

The calibration adapter links up the sensor cap on the
ToxiRAE Unit to the gas bottle (see Figure 4.1).

Figure 4.1 Installation of Gas Calibration

4 - 8

PROGRAMMING OF TOXIRAE

1. "Calibration" is the first menu item in Table 4.1.

Display shows "Calib?"- Press [Y/+] to perform
calibration. The first sub-menu shows: "Zero?"

2. If "zero" air is available, snap in the calibration adapter

over the sensor cap of the ToxiRAE Unit and connect
the other end of the tube to the zero gas bottle, as
shown in Fig. 4.1. If the "zero" air is not available,
simply leave the unit in an area free of any detectable
vapor (do not use calibration adapter in the latter case).

3. Press [Y/+] key to zero the unit. The display shows

"zero..." After about 2 seconds, the display should
shows reading of “0.0 OK?"

4. If the reading shows a small non-zero value, press [N/-]

key to zero it again. Repeat this process until the
reading is stabilized at 0.0 or 0.1 ppm. Press [Y/+] key
to exit zero gas calibration and move on to next
calibration sub-menu item. This completes the zero gas
calibration sequence.

5. Press the [MODE] key to exit the calibration sub-menu

and move directly to next menu item "Set Alarm
Limits" shown in Table 4.1.

4 - 9

PROGRAMMING OF TOXIRAE

4.4.2 Standard Reference Gas (Span

Gas) Calibration

This procedure determines the second point of the sensor
calibration curve. A bottle of standard reference gas (span
gas) is needed to perform this procedure. 100 ppm
isobutylene is typically used as the span gas. Snap in the
calibration adapter over the sensor cap of the ToxiRAE
Unit, and connect the tube to the gas bottle as shown in
Figure 4.1

1. Continue from Step 4 of the previous section, the

display should show "Span?" Press [Y/+] key. The
display shows "Gas On?"

2. Turn on the valve of the gas bottle to start the flow of

span gas. Then press [Y/+] key.

- Display shows "Wait..." for about 30 seconds while
the instrument performs calibration. Afterward, the
display shows "100.0 OK?"

Note: The reading should be very close to the value of

the given calibration gas. If the reading is lower or
higher than the standard gas value and is still rising
slowly, it means that the calibration gas has not yet
settled. Wait a few seconds and then press [N/-] key
again to calibrate the instrument. The new reading
should be closer to the standard gas value. Repeat this
process a few more times, if necessary, until the reading
is stable and within 1 or 2 ppm of the standard gas
value. This completes the standard gas calibration
procedure.

4 - 10

PROGRAMMING OF TOXIRAE

3. Press [Y/+] key to exit the standard gas calibration

procedure and move to the next sub-menu item.

4. Turn off the flow of gas. Disconnect the calibration

adapter from the ToxiRAE Unit. Ensure that the sensor
cap is still firmly secured onto the PID unit.

5. Press the [MODE] key to exit the calibration sub-menu

and move directly to next menu item "Set Alarm
Limits" shown in Table 4.1.

Note: When span calibration is performed, a time stamp

and the actual calibration value is stored in the non­volatile memory. This information will be included in
the datalogging report.

4 - 11

PROGRAMMING OF TOXIRAE

4.4.3 Standard Reference Gas (Span

Gas) Check

The purpose of this function is to check the instrument
drift since last calibration. A bottle of standard reference
gas is needed to perform this procedure. Use the same gas
as used in calibration. Snap in the calibration adapter over
the sensor cap of the ToxiRAE Unit, and connect the tube
to the gas bottle as shown in Figure 4.1

1. Continue from Step 3 of the previous section, the

display should show "Check?" Press [Y/+] key. The
display shows "Gas On?"

2. Turn on the valve of the gas bottle to start the flow of

span gas. Then press [Y/+] key.

- Display shows "Wait..." for about 5 seconds.

Afterward, the display should show "100.0 OK?"

Note: The reading should be close to the value of the
given calibration gas. If the reading is lower than the
standard gas value and is still rising slowly, it means
that the span gas has not yet settled. Wait a few
seconds and press [N/-] key again to re-check the
instrument. The new reading should be closer to the
standard gas value. Repeat this process a few more
times, if necessary, until the reading is stable. This
completes the standard gas check procedure.

3. Press [Y/+] key when correct, to exit the span gas check

procedure and move to next sub-menu item.

4 - 12

PROGRAMMING OF TOXIRAE

4. Turn off the flow of gas. Disconnect the calibration

adapter from the ToxiRAE Unit. Ensure that the sensor
cap is still firmly secured onto the PID unit.

5. Press the [MODE] key to exit the calibration sub-menu

and move directly to next menu item "Set Alarm
Limits" shown in Table 4.1.

Note: When span check is performed, a time stamp

and the actual check value are stored in the non-volatile
memory. This information will also be included in the
datalogging report.

4 - 13

PROGRAMMING OF TOXIRAE

4.4.4 Enter Standard Calibration Gas Value

This function allows the user to change the value of the
standard calibration gas.

1. "Enter Calibration gas value" is the next sub-menu item

in Table 4.2.

- Display shows "Cal Gas?"

2. Press [Y/+] key.

- Display shows "Cal Gas=" and "+- 100.0" which

means that the previous calibration gas value is 100
ppm. If the concentration of the new calibration gas to
be used is different from the previously stored value,
enter the new concentration value in Step 3. Otherwise,
press and hold the [MODE] key for 1 second to accept
the previously stored calibration gas value and exit the
calibration sub-menu.

4 - 14

PROGRAMMING OF TOXIRAE

3. Starting from the left-most digit of the standard

calibration gas value, use [Y/+] or [N/-] key to change
the digit value and press [MODE] key momentarily to
advance to next digit, the flashing digit will move to
next digit to the right. Repeat this process until all 4
digits are entered. Press and hold the [MODE] for 1
second to enter the new calibration gas value.

4. The display shows "Save?" To confirm the new value,

press the [Y/+] key to accept the change and exit the
calibration sub-menu. Press the [N/-] key or the
[MODE] key to discard the change and exit the
calibration sub-menu.

4 - 15

PROGRAMMING OF TOXIRAE

4.5 Set Alarm Limits

In the programming mode, the users may change various
alarm limits for the ToxiRAE Unit.
Table 4.3 shows the sub-menus for setting alarm limits
(default limits shown).

Table 4.3

Sub-Menu Option Display

1 Set TWA alarm limit TWA +- 0010.0

2 Set STEL alarm limit STEL +- 0025.0

3 Set Lo Alarm limit Lo Alarm +- 0050.0

4 Set Hi Alarm limit Hi Alarm +- 0100.0

4 - 16

PROGRAMMING OF TOXIRAE

4.5.1 Set TWA Alarm Limit

1. The first sub-menu item in Table 4.3 is to set the TWA

alarm limit.

-Display shows "TWA" and "+ - 0010.0" with the left-

most digit flashing, where "0010.0" is the previously
stored TWA alarm limit.

2. To modify this limit, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press [MODE] key momentarily to advance to next
digit. The flashing digit will move on to next digit to
its right. Repeat this process until all 4 digits of the
new TWA alarm limit are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes.

3. To preserve the previously stored TWA alarm limit,

press and hold the [MODE] key for 1 second, the unit
will exit data entry mode and move to the next sub­menu option.

4 - 17

PROGRAMMING OF TOXIRAE

4.5.2 Set STEL Alarm Limit

1. The second sub-menu item in Table 4.3 is to set the

STEL alarm limit.

-Display shows "STEL" and "+- 0025.0" with the left-

most digit flashing, where "0025.0" is the previously
stored STEL alarm limit.

2. To modify this limit, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press [MODE] key momentarily to advance to the next
digit. The flashing digit will move on to next digit to
its right. Repeat this process until all 4 digits of the
new STEL alarm limit are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes.

3. To preserve the previously stored STEL alarm limit,

press and hold the [MODE] key for 1 second, the unit
will exit data entry mode and move to the next sub­menu option.

4 - 18

PROGRAMMING OF TOXIRAE

4.5.3 Set Low Alarm Limit

1. The third sub-menu item in Table 4.3 is to set the Lo

Alarm limit.

- Display shows "Lo Alarm" and "+- 0050.0" with the

left-most digit flashing, where "0050.0“ is the
previously stored Lo Alarm limit.

2. To modify this limit, starting from the left-most digit,

use [Y/+] or [N/-] key to change the digit value and
press [MODE] key momentarily to advance to the next
digit. The flashing digit will move on to next digit to
its right. Repeat this process until all 4 digits of the
new Lo Alarm limit are entered. Press and hold
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press [Y/+] key to accept the new value
and move to next sub-menu. Press [N/-] key to discard
the changes.

3. To preserve the previously stored Lo Alarm limit, press

and hold [MODE] key for 1 second, the unit will exit
data entry mode and move to the next sub-menu option.

4 - 19

PROGRAMMING OF TOXIRAE

4.5.4 Set High Alarm Limit

1. The fourth sub-menu item in Table 4.3 is to set the Hi

Alarm limit.

- Display shows "Hi Alarm" and "0100.0" with the left-

most digit flashing, where "0100.0” is the previously
stored Hi Alarm limit.

2. To modify this limit, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until all 4 digits of the
new Hi Alarm limit are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows “Save?” Press the [Y/+] key to accept the new
value and exit the alarm setting sub-menu. Press the
[N/-] key to discard the changes.

3. To preserve the previously stored Hi Alarm limit, press

and hold the [MODE] key for 1 second, the unit will
exit data entry mode and move to the next menu item in
Table 4.1.

4 - 20

PROGRAMMING OF TOXIRAE

4.6 Set Datalog Options

ToxiRAE unit calculates and stores the gas readings at a
specified interval or period. More datalogging options can
be programmed in the PC and downloaded to the unit (see
Section 5.0 for details on how to program various
datalogging options). Table 4.4 shows the two sub-menus
for datalogging.

Table 4.4

Sub-Menu Option Display

1 Clear data memory Clear?
2 Set datalogging period Period?

4 - 21

PROGRAMMING OF TOXIRAE

4.6.1 Clear Data Memory

This function will erase all data stored in the non-volatile
data memory.

1. "Clear data memory" is the first sub-menu item in

Table 4.4. Display shows "Clear?" message.

2. Press the [Y/+] key to clear the data memory.

- Display shows "Sure?" to re-confirm the clearing of

memory.

3. Press the [Y/+] key again will erase all the data

memory.

4. Press the [N/-] or [MODE] key to exit without clearing

the data memory and move to next sub-menu item.

4 - 22

PROGRAMMING OF TOXIRAE

4.6.2 Set Datalogging Period

The datalogging period can be programmed from one to
3,600 seconds (1 hour) with one-second increment.

1. "Set datalogging period" is the second sub-menu item

in Table 4.4. Display shows "Period?" message.

2. Press the [Y/+] key to set the period.

- Display shows "+- 0060" with the left-most digit
flashing, where “0060” is the previously stored data
logging period in unit of seconds.

3. To modify this period, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move to the next
digit to the right. Repeat this process until all 4 digits
of the new period are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and exit the datalog sub-menu. Press the [N/-]
key to discard the changes and move to the next menu
option.

4. To preserve the previously stored period, press and hold

the [MODE] key for 1 second. The unit will exit data
entry mode and move to the next menu item in Table

4.1.

4 - 23

PROGRAMMING OF TOXIRAE

4.7 Set Real Time Clock

In the programming mode, users may change the year,
month, date, hour and minute of the real time clock inside
the ToxiRAE Unit. Table 4.5 shows the sub-menus for
setting real time clock.

Table 4.5

Sub-Menu Option Display

1 Set year Year = +- 95

2 Set month Month = +- 02

3 Set date Day = +- 05

4 Set hour Hour = +- 14

5 Set minute Minute = +- 30

4 - 24

PROGRAMMING OF TOXIRAE

4.7.1 Set Year

1. The first sub-menu item in Table 4.5 is to set year.
. - Display shows "Year =" and "+- 95" with the left-

most digit flashing, where "95" is the current year value
of the real time clock.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until both digits of the
new year value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes and move to the next menu
option.

3. To preserve the current year value in the clock, press

and hold the [MODE] key for one second, the unit will
exit data entry mode and move to the next sub-menu
option.

4 - 25

PROGRAMMING OF TOXIRAE

4.7.2 Set Month

1. The second sub-menu item in Table 4.5 is to set month.

Display shows "Month =" and "+- 02" with the left­most digit flashing, where "02" is the current month
value of the real time clock.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until both digits of the
new month value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes and move to the next menu
option.

3. To preserve the current month value in the clock, press

and hold the [MODE] key for one second, the unit will
exit data entry mode and move to the next sub-menu
option.

4 - 26

PROGRAMMING OF TOXIRAE

4.7.3 Set Day

1. The third sub-menu item in Table 4.5 is to set date.
. - Display shows "Day =" and "+- 05" with the left-most

digit flashing, where "05" is the current date value of
the real time clock.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until both digits of the
new date value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes and move to the next menu
option.

3. To preserve the current date value in the clock, press

and hold the [MODE] key for one second, the unit will
exit data entry mode and move to the next sub-menu
option.

4 - 27

PROGRAMMING OF TOXIRAE

4.7.4 Set Hour

1. The fourth sub-menu item in Table 4.5 is to set hour.

Display shows "Hour =" and "+- 14" with the left-most
digit flashing, where "14" is the current hour value of
the real time clock stored in 24 hour clock style.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until both digits of the
new hour value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes and move to the next menu
option.

3. To preserve the current hour value in the clock, press

and hold the [MODE] key for one second, the unit will
exit data entry mode and move to the next sub-menu
option.

4 - 28

PROGRAMMING OF TOXIRAE

4.7.5 Set Minute

1. The fifth sub-menu item in Table 4.5 is to set minute.

Display shows "Minute =" and "+- 30" with the left­most digit flashing, where "30" is the current minute
value of the real time clock.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until both digits of the
new minute value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and exit the clock sub-menu. Press the [N/-] key
to discard the changes and move to the next menu
option.

3. To preserve the current minute value in the clock, press

and hold the [MODE] key for one second, the unit will
exit data entry mode and move to the next menu item in
Table 4.1.

4 - 29

PROGRAMMING OF TOXIRAE

4.8 Gas Correction Factor

The correction factor for a specific gas is defined as:

Sensitivity to a calibration gas
Correction Factor =

The correction factors are often used to obtain a calculated
concentration of a given gas while using a different gas
during calibration.

ToxiRAE Unit can store four sets of correction factors for
different gases (including the calibration gas). From a PC,
the user can choose 4 gases from a list of over 40 gases and
down load them into the ToxiRAE (see Section 5.0 for
details on how to select and down load correction factors).
Table 4.6 shows the two sub-menus for selecting or
modifying correction factors in the ToxiRAE.

________________________

Sensitivity to a specific gas

Table 4.6

Sub-Menu Option Display

1 Select gas Gas = Hexane?
2 Modify correction factor Factor = +- 002.40

4 - 30

PROGRAMMING OF TOXIRAE

4.8.1 Select Gas

This function allows users to choose one of the four gases
pre-stored in the unit and load its correction factor to be
used during gas measurements.

1. "Select gas" is the first sub-menu item in Table 4.6.

Display shows "Gas = Hexane?" message where
Hexane is the previously selected gas.

2. Press the [Y/+] key to accept the current gas selection.

- Display shows "Hexane.. loaded" and move to next

sub-menu item. ---

Or press the [N/-] key to see next available gas.

-Display shows "Gas = Benzene?" message where

Benzene is the next available gas pre-stored in the unit.

3. Press the [N/-] repeatedly until the desired gas name is

displayed or press the [MODE] key to exit without
changing the gas selection and move to next menu in
Table 4.1.

4 - 31

PROGRAMMING OF TOXIRAE

4.8.2 Modify Correction Factor

User can modify the correction factor to increase or
decrease the gain of the gas reading. This allows users to
use a custom factor for a specific gas or mixture of gases.

1. "Modify correction factor" is the second menu item in

Table 4.6. Display shows "Factor = +- 002.40" with the
left-most digit flashing, where "002.40" is the
correction factor of the selected gas in the previous
section.

2. To modify this factor, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until all 4 digits of the
new factor are entered. Press and hold the [MODE] key
for 1 second to exit data entry mode. If there is any
change to the existing value, the display shows "Save?"
Press the [Y/+] key to accept the new value and exit the
gas selection sub-menu. Press the [N/-] key to discard
the changes.

3. To preserve the previously stored correction factor,

press and hold the [MODE] key for 1 second, the unit
will exit data entry mode and move to the next menu
item in Table 4.1.

4 - 32

PROGRAMMING OF TOXIRAE

4.9 Setup Instrument

In the programming mode, users may change the user ID
or site number so that datalogging will include appropriate
user and site information. Table 4.7 shows the two sub­menus for setting up the instrument.

Table 4.7

Sub-Menu Option Display

1 Set user ID User 7777
2 Set site number Site 1001

4 - 33

PROGRAMMING OF TOXIRAE

4.9.1 Set User ID

A four-digit user ID number is stored with each set of
datalogging information. This ID number can be used to
identify different users of the instrument.

1. The first sub-menu item in Table 4.7 is to set user ID.

Display shows "User7777" with the left-most digit
flashing, where "7777" is the current user ID number.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until all four digits of
the new ID value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and move to next sub-menu. Press the [N/-] key
to discard the changes.

3. To preserve the current user ID value in the unit, press

and hold the [MODE] key for one second, the unit will
exit data entry mode and move to the next sub-menu
option.

4 - 34

PROGRAMMING OF TOXIRAE

4.9.2 Set Site Number

A four-digit site number is stored with each set of
datalogging information. This site number can be used to
identify different job or site locations during the operation
of the instrument.

1. The second sub-menu item in Table 4.7 is to set site

number. Display shows "Site1001" with the left-most
digit flashing, where "1001" is the current site number.

2. To modify this value, starting from the left-most digit,

use the [Y/+] or [N/-] key to change the digit value and
press the [MODE] key momentarily to advance to the
next digit. The flashing digit will move on to next digit
to its right. Repeat this process until all four digits of
the new site value are entered. Press and hold the
[MODE] key for 1 second to exit data entry mode. If
there is any change to the existing value, the display
shows "Save?" Press the [Y/+] key to accept the new
value and exit the setup sub-menu. Press the [N/-] key
to discard the changes.

3. To preserve the current site number value in the unit,

press and hold the [MODE] key for one second, the
unit will exit data entry mode and move to the next
menu item in Table 4.1.

4 - 35

PROGRAMMING OF TOXIRAE

4.10 Exit Programming Mode

1. To exit programming mode from menu level (see Table

4.1), press the [MODE] key once.

- Display shows an instantaneous reading of normal

operation mode.

2. To exit programming mode from sub-menu level (see

Table 4.2 - 4.7), press the [MODE] key twice.

2. To return to programming mode, press and hold down

both the [MODE] and [N/-] keys for 3 seconds as
described in Section 4.3.

4 - 36

COMPUTER INTERFACE FOR TOXIRAE

5. COMPUTER INTERFACE FOR

ToxiRAE

Each datalogging ToxiRAE is shipped with a software
package, called ProRAE-Suite, and a serial computer
interface cable.

This software package runs on any IBM compatible
Personal Computer (PC) under Windows 95



, Windows NT 4.0 and later environments. It allows

98
the user to configure the ToxiRAE through a user-friendly
interface and send the configuration information from the
PC to the ToxiRAE monitor. Collected data can also be
extracted from the ToxiRAE to the PC in order to perform
data analysis, report generation or record keeping.
Installation and operation of this software package is
described in the following sections.



, Windows

5 - 1

COMPUTER INTERFACE FOR TOXIRAE

5.1 Install ProRAE-Suite Software

ProRAE-Suite software package is available on several

3.5” setup diskettes. To install the ProRAE-Suite
software, insert the first setup diskette into the “A” or “B”
floppy disk drive. Click the Start button on the taskbar to
display the start menu, then click the Run from the start
menu to display the Run dialog box. If the setup diskette
is in disk drive A, type A:\Setup.exe in the Open field, as
shown in Figure 5.1.

Figure 5.1 Run Dialog Box

Press the Enter key on the keyboard or click the OK
button on the Run datalog box to start the setup process.
If the user chooses the default settings in every step of the
process, the ProRAE-Suite software will be installed
under the default directory: C:\Program Files\RAE
Systems Inc\ProRAE-Suite. After the software is
installed successfully, a new menu item ProRAE-Suite is
added to the Programs menu. To start the ProRAE-Suite
software, click the Start button on the taskbar to display
the Start menu, click the Programs menu item to display
the Programs submenu, then click the ProRAE-Suite

5 - 2

COMPUTER INTERFACE FOR TOXIRAE

menu item to display the ProRAE-Suite submenu. There
are two submenu items under the ProRAE-Suite
submenu: ProRAE-Suite and Readme, as shown in
Figure 5.2. Click the ProRAE-Suite submenu item to
start the ProRAE-Suite software.

Figure 5.2 Start Menu

5 - 3

COMPUTER INTERFACE FOR TOXIRAE

5.2 Connect ToxiRAE to PC

The basic kit of the ToxiRAE is supplied with a serial
interface cable. Connect the DB-9 connector side of the
cable to the serial port of the PC, and connect another side
of the cable to the ToxiRAE monitor.

Turn on the power to the ToxiRAE monitor. Press the
[MODE] key several times until the LCD shows
“Communicate with PC?” Press the [Y/+] key and the
display shows “Pause Monitor, OK?” Press [Y/+] key to
confirm and the display shows “Comm...” to indicate that
the ToxiRAE monitor is ready and waiting for
communication with PC. During the communication
session, the PC will directly control the ToxiRAE monitor
through the serial link. There is no need for users to press
any key on the ToxiRAE monitor during the
communication session.

If no data transfer has occurred within two minutes, the
ToxiRAE monitor will return to instantaneous reading
display.

Note: Do not connect to the parallel port of the PC by
mistake. The parallel port is usually a 25 pin female D
connector on the back of the PC, the serial port is usually
a 25 or 9 pin male D connector. If the serial port on the
PC is a 25-pin connector, the user needs to use a 25 pin to
9-pin adapter in order to accept the serial cable.

5 - 4

COMPUTER INTERFACE FOR TOXIRAE

5.3 Start ProRAE-Suite Software

To start the ProRAE-Suite software, click the Start
button on the taskbar to display the Start menu, click
Programs -> ProRAE-Suite -> ProRAE-Suite submenu
item to start the ProRAE-Suite software. Figure 5.3
shows the main window of the ProRAE-Suite software.

Figure 5.3 ProRAE-Suite Main Window

The functions of ProRAE-Suite software can be divided
into three categories:

1) Configuration data category. This category includes

editing the configuration data file, sending the
configuration data to the ToxiRAE monitor and
receiving the configuration data from the ToxiRAE
monitor, etc.

2) Logged data category. This category includes

receiving the logged data from the ToxiRAE monitor,

5 - 5

COMPUTER INTERFACE FOR TOXIRAE

displaying the logged data in different format,
exporting the logged data to a tab delimited text file so
that it can be read by the Microsoft Excel software,
etc.

There is a tool bar beneath the menu bar. The frequently
used functions are represented in this tool bar in the form
of a small icon. For example, the Receive data function
in the Communication sub-menu is represented as a
small arrow with the letters “RECV.” When the mouse
cursor (a small arrow) is positioned near each icon in the
tool bar, a short text will also appear at the bottom of the
Window to describe the function of this icon.

This tool bar allows users to invoke a function
conveniently by clicking on the icon without going
through the sub-menus.

5 - 6

COMPUTER INTERFACE FOR TOXIRAE

5.4 Setup Communication Port

It is necessary to setup the communication port on the
ProRAE-Suite software so that the ToxiRAE monitor can
communicate with the PC correctly. Figure 5.4 shows the
Setup Port dialog box. Choose the appropriate port
according to the PC’s serial port setup.

Figure 5.4 Setup Port Dialog

Note: In most PC's, there are two serial ports. Make sure
that the serial port selected in the Setup Port dialog box
matches the actual serial port connected to the ToxiRAE
monitor. The default serial port for ProRAE-Suite is
COM1. If the incorrect serial port is selected, an error
message of “error occur during serial port initialization”
will appear when a user tries to communicate between the
PC and the ToxiRAE monitor.

5 - 7

COMPUTER INTERFACE FOR TOXIRAE

5.5 Processing the Configuration Data

The ProRAE-Suite software allows user to edit the
configuration data, send the configuration data to the
ToxiRAE monitor, and receive the configuration data
from the ToxiRAE monitor. The following sub-sections
describe the detail of each operation.

5 - 8

COMPUTER INTERFACE FOR TOXIRAE

5.5.1 Editing the Configuration Data

From the main menu of the ProRAE-Suite software,
select the Open menu item from the File dropdown
menu, or click the Open toolbar button, a dialog box
appears. Select the “Files of type:” to Config Files
[*.cfg], as shown in Figure 5.5.

Figure 5.5 Open Dialog Box

There should be one or more configuration files in the file
list. Each configuration file has a file extension of
“.CFG”. There is one generic ToxiRAE configuration file
supplied with ProRAE-Suite software:
Default_ToxiRAE_V###.CFG, where ### is the version
number of the default configuration file. For example,
Default_ToxiRAE_V122.cfg means this file is for
ToxiRAE monitor and its version is V1.22. Choose a
configuration file by highlighting the file name and press
the Enter key or click the Open button on the dialog box.

5 - 9

COMPUTER INTERFACE FOR TOXIRAE

Once the configuration file is open, the configuration data
is displayed in the newly opened client window, as shown
in Figure 5.6.

Figure 5.6 Displayed Configuration Data

To edit the opened configuration data file, click the Edit -
> Configuration menu item or the Configuration toolbar
button to open the Edit Configuration File dialog box,
as shown in Figure 5.7.

After finished the editing of the configuration settings,
click the OK button to close the Edit Configuration File
dialog box. The new values of the configuration settings
will be reflected in the client window.

5 - 10

COMPUTER INTERFACE FOR TOXIRAE

Figure 5.7 Edit Configuration File Dialog Box

The General tab page, which is shown in Figure 5.7,
allows user to change the general settings of the
configuration data. The following is the description of
each field in the General tab page of the Edit

Configuration File dialog:

ID:

This section sets the identification that is used throughout
the datalog process. Both editing fields, Site and User,
can hold up to eight alphanumeric letters.

Security Level:

There are three levels of security. Use security level to
provide protection against unauthorized changes to the
monitor settings in the programming mode.

5 - 11

COMPUTER INTERFACE FOR TOXIRAE

Level 0 allows the user to enter the programming menu
without password checking, but does not allow changes to
alarm limits, real time clock, correction factor, or user and
site information, etc. The user can still perform
calibrations.

If Level 1 is selected, a four-digit password is required to
enter the programming menu.

If Level 2 is selected, the programming menu may be
entered without restriction. Any changes made in the
programming menu can be saved.

Password:

Entry to the programming menu requires the four-digit
password be punched in if Level 1 is selected as the
security level.

User mode:

In the Display mode, the user can view several readings
in the normal operation, but cannot enter the
programming menu. In the Program mode, the user can
enter the programming mode to calibrate the monitor or
change various setups in the monitor.

Alarm mode:
This option allows the alarm to be either latched or auto­reset. Selecting the auto-reset option allows the monitor

to turn off alarms when the alarm situation no longer
exists. The latched option allows the alarm to stay on as
long as the alarm situation is no longer exist and a key is
pressed to acknowledge the alarm situation.

5 - 12

COMPUTER INTERFACE FOR TOXIRAE

Power On Zero:

This option allows the monitor to perform a fresh air
calibration automatically when the monitor is turned on.
Care must be taken, when using this mode, to ensure that
the monitor is in a fresh air environment when turned.

Clock from PC:

This option allows the PC clock to be downloaded to the
ToxiRAE monitor so that the user does not need to
manually set the clock in the ToxiRAE monitor.

Datalog Selection:

User can choose one or more values for datalogging
purpose. User can choose to datalog the minimum,
average, and maximum values, or any combinations of
the three values.

Datalog Interval:

The datalog interval is the rate at which datalog samples
are recorded while the datalog is running. The unit of
datalog interval is second. The datalog interval
determines how often a new sample is calculated and
stored to the datalog.

Datalog Mode:

This may be set to either of four choices:

-- With Automatic start/stop, the datalogging begins
when the monitor is turned on and ends when it is turned
off.

-- With Manual start/stop, the datalog can begin by a
series of key presses in the menu of normal operation.
The maximum run time determines an automatic end to
the datalog or it can be stopped manually.

-- If Periodic start/stop (or daily) mode is chosen, the
user must specify the start and stop hour and minute. The

5 - 13

COMPUTER INTERFACE FOR TOXIRAE

interval between start and stop is the period of time the
monitor will datalog (at “data logging period” rate).

-- With Scheduled start/stop, all the entry boxes for
year, month, day, hour and minute for both start and stop
time must be entered to specify when the datalog is to
occur.

Run Time:
If manual start/stop mode for datalogging is chosen, the
user needs to specify a maximum run time. After the
monitor has been on for the specified run time,
datalogging will be turned off automatically.

Start Time and Stop Time:

If scheduled start/stop mode is chosen for datalogging,
all entry boxes must be completed for start and stop year,
month, day, hour and minute. The monitor must already
be turned on. Then once the start date/time is reached,
the monitor will start datalogging. When the stop
date/time is reached, the datalogging will stop
automatically. With periodic start/stop mode, the hours
and minutes are used for the datalog period to be run each
day.

Figure 5.8 shows the Gas Parameters tab page that
allows the user to change the gas parameters of the
configuration data. The following is the description of
each field in the Gas Parameters tab page of the Edit
Configuration File dialog:

5 - 14

COMPUTER INTERFACE FOR TOXIRAE

Figure 5.8 Gas Parameters Settings Tab Page

Alarm Levels (ppm):
This is the place where the user can specify the STEL
alarm level (ppm), TWA alarm level (ppm), low alarm
level (ppm) and high alarm level (%) for the sensor.

Calibration Span (ppm):
The user can specify the calibration gas span for the
sensor here.

Current Gas Selection:
This is the place where the user can choose a set of gases
for correction factors of the sensor. Each list box
contains a list of gases. Scroll the list using the up or
down arrow until the desired gas name is shown. Press
Enter key to select the gas.

5 - 15

COMPUTER INTERFACE FOR TOXIRAE

OK/Cancel:
When the configuration changes are completed, click on
the OK button to save the configuration and return to the
client window, or click on the Cancel button to abort the
configuration changes.

5 - 16

COMPUTER INTERFACE FOR TOXIRAE

5.5.2 Send Configuration to the ToxiRAE

After the ProRAE-Suite software opens the configuration
data file, the user can send the configuration settings to
the ToxiRAE monitor. To send the configuration settings
to the instrument, click Communication->Send Config
menu item or click the Send toolbar icon (right arrow
with “Send” letters), a message box will appear to remind
the user to connect the instrument to the PC through the
serial port. After making sure that the instrument is
connected to the PC, click the OK button to start the data
transfer.

After the configuration information is sent successfully, a
message box will appear to indicate that the configuration
sending process is completed. Click the OK button to
close the message box.

If the communication is not successful, an error message
indicating that there is no response from the instrument
will appear. Check the cable to make sure that the
connectors on both ends of the cable are securely seated
in the sockets, then try to send the configuration again. If
the error message still appears after repeated attempts,
call an authorized service center for help.

5 - 17

COMPUTER INTERFACE FOR TOXIRAE

5.5.3 Receiving Configuration Data

To receive the configuration data from the ToxiRAE
monitor, click the Communication->Receive Config
menu item. A message box will appear to remind the user
to connect the instrument to the PC through the serial
port. After making sure that the instrument is connected
to the PC, click the OK button to start the data transfer.
After the data transfer is finished, a new client window is
opened with the newly received configuration data
displayed. In order to save the configuration information
for future use, user can click File->Save or File->Save
As menu item to save the newly received configuration
data to a file. Once the configuration file is saved on
disk, it can be opened at a later time for further
modification or can be sent to the ToxiRAE monitor.

5 - 18

COMPUTER INTERFACE FOR TOXIRAE

5.5.4 Configuring All Settings

A user can use this function to update the entire
configuration settings (except the instrument ID, serial
number and the datalog option) in the ToxiRAE monitor.
To configure all the settings in the instrument, click the
Option->Config All menu item, and a message box will
appear to remind the user to connect the instrument to the
PC through the serial port. After making sure that the
instrument is connected to the PC, click the OK button.
Another message box will appear to warn the user that
this operation will erase all the current configuration
settings in the monitor. If the user does not want this to
happen, click the Cancel button, otherwise click the OK
button to start the data transfer.

After the information is sent successfully, a message box
will appear to indicate that the sending configuration
process is completed. Click the OK button to close the
message box.

Note: The Config All option is mainly used to restore the
ToxiRAE monitor’s default operational settings, such as
calibration data, lamp & pump drive, and diagnostic
parameters, etc. If the user feels that the internal
calibration data of the instrument are set incorrectly and
cannot be recovered, then the user can open the default
configuration file and use this option to restore the
instrument to a known state.

5 - 19

COMPUTER INTERFACE FOR TOXIRAE

5.6 Processing the Logged Data

The ProRAE-Suite software allows the user to retrieve the
logged data from the ToxiRAE monitor and display the
data in many different formats. The user can also export
the displayed text to a tab delimited text file so that
Microsoft Excel can read it directly.

5 - 20

COMPUTER INTERFACE FOR TOXIRAE

5.6.1 Receiving Data

To receive the logged data from the ToxiRAE monitor,
click the Communication->Receive Data menu item or
click the Receive Data toolbar button (left arrow with
“Recv” letters). A message box will appear to remind
user to connect the instrument to the PC through the serial
port. After making sure the instrument is connected to
the PC, click the OK button to start the data transfer.
After the data transfer is finished, a new client window is
opened with the newly received logged data displayed. In
order to save the logged data for future use, user can click
File->Save or File->Save As menu item to save the
newly received logged data to a file.

5 - 21

COMPUTER INTERFACE FOR TOXIRAE

5.6.2 View Logged Data in Text Mode

Once the user opens a data file or receives the logged data
from the instrument, a data window appears, as shown in
Figure 5.9.

Figure 5.9 Displayed Logged Data

The data window is a two-pane client window. The left
pane is a tree view that lists all the display format of each
event, and the right pane displays the information
according to the display format and the event the user
selected on the left pane. To select any display format of
any event, the user can simply click the format item on
the left pane. To view the next event or the previous
event, the user can click the Next Event (double right
arrow) or the Previous Event (double left arrow) toolbar
buttons. The user can also drag the splitter bar between

5 - 22

COMPUTER INTERFACE FOR TOXIRAE

the left pane and the right pane to the left or to the right to
enlarge a pane as desired.

To view the data points of a specific event, the user can
click the item representing that event under the item Text
Mode. For example, click the item Event #1 on the left
pane, and the right pane displays the data points of event
#1, as shown in Figure 5.9.

5 - 23

COMPUTER INTERFACE FOR TOXIRAE

5.6.3 View STEL/TWA/AVG Value

To view the STEL, TWA or AVG value of any event,
click the event number item under the tree item
STEL/TWA/AVG in the left pane. The right pane
displays the STEL, TWA and AVG value of each data
point of that event, as shown in Figure 5.10.

Figure 5.10 STEL/TWA/AVG of the Logged Data

5 - 24

COMPUTER INTERFACE FOR TOXIRAE

5.6.4 View Summary Information

To view the summary information of any event, such as
peak value and minimum value, click the event number
item under the tree item Summary in the left pane. The
right pane displays the summary information of that
event, as shown in Figure 5.11.

Figure 5.11 Summary Information of the Logged Data

5 - 25

COMPUTER INTERFACE FOR TOXIRAE

5.6.5 View Logged Data in Graph Mode

To view the logged data of a specific event in graph
mode, click the event item under the tree item Graph
Mode in the left pane, and the right pane displays the
graph of that event, as shown in Figure 5.12.

Figure 5.12 Graph of the Logged Data

Select graph type:

The user can choose the type of data in the Graph Type
tab page of the Graph Settings dialog box. To display
the Graph Settings dialog box, click any place in the
right pane so that pane has the focus, then click Option-

>Graph Settings menu item to display the Graph
Settings dialog box. Figure 5.13 shows the Graph Type

tab page of the Graph Settings dialog box.

5 - 26

COMPUTER INTERFACE FOR TOXIRAE

Figure 5.13 Graph Type Tab Page

Select graph range:

User can choose the value range on the x-axis and y-axis
in the Graph Range tab page of the Graph Settings
dialog box. To display the Graph Settings dialog box,
click any place in the right pane so that pane has the
focus, then click Option->Graph Settings menu item to
display the Graph Settings dialog box. To bring the
Graph Range tab page, user can simply click the page
header of the Graph Range tab page. Figure 5.14 shows
the Graph Range tab page of the Graph Settings dialog
box. This is the place where user can choose the graph
range on the x-axis and y-axis.

5 - 27