RAE Systems QRAE 3 Quick Start Guide

QRAE 3

Diffusion & Pumped

QuickStart Guide

WARNINGS

Read Before Operating

The QRAE 3 User’s Guide must be carefully read by all
individuals who have or will have the responsibility of
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!

Never operate the monitor when the rear cover is re­moved. Remove rear cover, sensors, and/or battery only
in an area known to be non-hazardous. Never use the
instrument with the calibration adapter installed, as this
can cause distorted readings, a potential safety threat.

User Interface

The QRAE 3’s user interface consists of the
display and two keys, [MODE] and [Y/+]. The
flippable LCD displays information such as monitored
threats, real-time readings and measurement units,
alarm type (when in alarm, including cal. overdue),
battery status, datalog (if on), and radio and connection
quality (if available).

Charging The QRAE 3 (non-ATEX/IECEx)

Always fully charge the battery before use. Contacts on
the bottom of the QRAE 3 meet the Travel Charger’s
contact pins, transferring power. Make sure the charger
and QRAE 3 are firmly attached. Then connect the AC

Adapter’s barrel plug to the charger, and plug its

transformer into an AC outlet. While charging, the
LED on the Travel Charger glows red. When the
battery is fully charged, the LED glows green.

Barrier Box For ATEX/IECEx Use

For ATEX/IECEx applications, plug the cord from
the Barrier Box (P/N M02-3011-000) into the
Travel Charger, and then plug the power adapter
into the Barrier Box.

Turning The QRAE 3 On

With the instrument turned off, press and hold the
[MODE] key until the audible alarm stops, and then
release. During startup, the battery, buzzer, vibra­tion alarm, and LEDs are tested, and then the
QRAE 3 performs self-testing of its other func­tions. When the main measurement screen appears,
the QRAE 3 is ready for calibration or use.

Note: If the battery is completely empty, then the

display briefly shows the message “Battery
Discharged!” and the QRAE 3 shuts off. You should

charge or replace the battery before turning it on again.

Note: If “Zero At Start,” “Must Calibrate” or
“Must Bump” is set, you will be prompted to

perform the appropriate calibration before using the
instrument.

2.

3.

5.

6.

4.

Charging
status LED

Phone: [phone] Fax: [phone]

www.raesystems.com

RAE Systems by Honeywell

3775 N. First St.

San Jose, CA 95134-1708 USA

AC adapter
barrel plug

QRAE 3

Travel
Charger

Clip Travel Charger
Onto QRAE 3

Non-ATEX/IECEx:
Power supply
plugged directly into
Travel Charger.

ATEX/IECEx:
Barrier Box between
power supply and
Travel Charger.

Email: [e-mail]

Turning The QRAE 3 Off

Press and hold [MODE]. A 5-second countdown to shut­off begins. Continue pressing on the key for the entire
shutoff process. Otherwise, the shutoff operation is
canceled and the QRAE 3 continues normal operation.

When the countdown ends and the screen displays “Unit
Off!” release your finger from the [MODE] key. The
QRAE 3 is now off.

Testing The Alarm

Under normal-operation mode and non-alarm condi­tions, the buzzer, vibration alarm, LED, and backlight
can be tested anytime by pressing [Y/+] once. If any
alarm does not respond, check the Alarm Settings in
Programming Mode to make sure all alarms are
enabled. If any alarms are enabled but are not
functional, do not use the instrument.

Calibration

Make sure all sensors have warmed up before

attempting any calibration. If a sensor’s reading
shows “- -” on the display, the sensor is not ready.

The QRAE 3 diffusion model requires a calibration
adapter. Set it over the sensors, tighten the knob to
secure it, and connect a hose from a calibration gas
regulator. The pumped model requires a T
calibration tube. Attach that to the instrument’s
external filter and to the calibration gas regulator.

Calibrate the QRAE 3 using a fixed-flow regulator (flow
rate between 0.5 and 1.0 liters per minute):

1. To begin calibration, connect the zero air or

calibration gas cylinder, flow regulator, and
calibration adapter to the QRAE 3.

2. Enter Programming Mode by pressing and holding

[MODE] and [Y/+] simultaneously until the password
screen appears. (A password is not necessary in
Advanced mode.)

3. Input the 4-digit password. (The default password is

“0000.” If you do not know the password, select
“Done.”) Then follow the instructions for individual

or multiple bump, zero and span calibration.
Important! After a bump test or calibration, remove

the calibration adapter or T connection to ensure
correct readings.

Zero & Fresh Air Calibration

The QRAE 3 should be zero-calibrated in clean air

with 20.9% oxygen or with a cylinder of clean zero air.
In Programming Mode, press [MODE] to select “Multi
Zero.” Press [Y/+] to select it. Then press [Y/+] to start
a Fresh Air calibration for the listed sensors. All are
fresh-air calibrated at once. During calibration, the

screen says, “Calibrating.” When done, each sensor is
shown, accompanied by the word “Pass.”

To zero calibrate individual sensors:

1. Select “Single Sensor Zero” and select a sensor.

2. Press [Y/+] to select a sensor to zero calibrate.

3. Start the flow of the zero gas, if used, and press [Y/+].

4. The screen says, “Calibrating” and counts down.

5. When done, it says, “Zero Calibration Passed” (the

reading should be 0 or very close to it for toxic gas

sensors, and 20.9% Vol. for an oxygen sensor).
Shut off the flow of zero air (if used) and remove the
calibration adapter or T connector.

8.

9.

P/N: M02-4002-000 Rev B 201401

Basic Menu

mode. When datalogging is

10.

7.

Install the calibration
adapter on the QRAE 3

diffusion model

Attach the T calibration
tube on the QRAE 3

pumped model before

calibration

Navigation

Pressing [MODE]
repeatedly allows you to
step through the screens as
shown here.

Note: The gray box around
Datalogging indicates the
datalog functions when
datalogging is in Manual

in Automatic mode, this
screen does not appear.

Refer to the User’s Guide

for information on select­ing Automatic or Manual