Rae MultiRAE Plus Guide

The Hazardous Environment Detection Company
MultiRAE Plus
Using the
MultiRAE Plus
personal multigas
monitor
Firmware v 3.12B

The Hazardous Environment Detection Company
Training Agenda
• MultiRAE Plus features
• Turning on the MultiRAE Plus
• Recommended Daily Start-up Procedure
• User displays
• Alarm modes
• Programming displays
• Calibration

The Hazardous Environment Detection Company
MultiRAE Plus Features: Sensors
• Oxygen: 0-30%
• Combustibles: 0-100% of LEL
• Toxic sensors: select two from CO,
H2S, SO2, NO, NO2, Cl2, HCN, NH3,
PH3
• VOC monitor: 0-2000 PPM

The Hazardous Environment Detection Company
MultiRAE Plus Features: Easy Sensor Access
• New innovative
casing design
• Easy access to
sensors with
penny, nickel, or
dime

The Hazardous Environment Detection Company
MultiRAE Plus Features: Reliability
• Extremely rugged for extensive field use
• Weather proof case
•-4
°F to 113°F (-20°C to 45°C)
• 4-way power: Li-Ion(NiCad), alkaline or
run continuously on 110 VAC and 12 VDC
• Runs 10-12 hours with pump
• RFI protection against radio interference
• Intrinsically safe: Class I, Division I,
Groups A, B, C, D; UL, cUL, ATEX
• LEL over-range protection

The Hazardous Environment Detection Company
MultiRAE Plus Features: Rugged Case
Buzzer &
Exhaust
Display Charger
Port Serial
Port

The Hazardous Environment Detection Company
MultiRAE Plus Features: Simple Faceplate
Light
Sensor
Alarm LEDs
• Three buttons on a sealed membrane
faceplate:
– Y/+ (horn): clears & tests alarms
– N/- (light): turns on manual backlight for
90 seconds
–MODE(ON)

The Hazardous Environment Detection Company
MultiRAE Plus Features: Rugged Boot
External Filter
Rugged
Rubber
Boot
Belt Clip

The Hazardous Environment Detection Company
MultiRAE Plus Features: Internal Pump
• Makes remote sampling easy
• Sample draw over 100 feet!
• External filter for added protection
• Pump stall feature: when moisture is detected
or when pump is blocked the pump will shut
off, protecting the MultiRAE Plus from
potential damage
• ~150cc/min at low flow, ~250cc/min at high
flow
• Only use teflon tubing when PID is installed

The Hazardous Environment Detection Company
MultiRAE Plus Features: External Filter
• Always use the external filter
• Replace when it looks very dirty
• Replace when MultiRAE Plus is in
pump alarm with the filter on and you
can clear the pump alarm with the
filter off.
You wouldn’t leave your house
without putting on your pants
so don’t use the MultiRAE Plus
without its external filter!

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Turning On
• Unplug MultiRAE Plus from charger
• Hold “MODE” Key to turn on
• Alarm will beep once
• Watch display screen for messages such
as:
– Sensors installed & their warranty expiration
– Alarm limits
– Last calibration date
– User/Alarm/Datalog modes
• Warm-up will take approximately 90
seconds

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Warnings
TOX1 VOC TOX2
Incorrect Year
LEL Check Clock!!! OXY
• If this screen appears during the start-up just
acknowledge it with the “Y” key and follow the
procedure for setting the clock.
• The battery has gone dead and the MultiRAE
Plus has detected a mismatch between the
date code on the sensors and its internal
clock.

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Warnings
TOX1 VOC TOX2
O2Installed
LEL Warranty Expired OXY
• This is a warning screen. As long as the
sensor calibrates properly it is valid to
continue using it. Acknowledge by pressing
the “Y” key to continue warm-up.
• For maximum MultiRAE Plus availability,
RAE Systems recommends replacing
sensors at the end of their warranty period

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Fresh Air Calibration
TOX1 VOC TOX2
LEL OXY
Fresh air
calibration?
• After 90 sec. warm-up, the MultiRAE
Plus will ask to perform a fresh air
calibration
• If you are in clean, ambient air, press
Y/+
• The sensors will be zeroed

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Check Sensor Zero
TOX1 VOC TOX2
000
LEL 020.9 OXY
• If there is no alarm, and the sensor
readings are in the range shown
above, then the MultiRAE Plus is
ready for use.

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Check Sensor Zero
TOX1 VOC TOX2
000
LEL 0-3 20.6-21.2 OXY
• If any reading is outside these limits,
wait a few minutes then check again.
– If readings are in limits use the unit
– If readings are still outside these limits
perform “Fresh air calibration”

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Lamp Alarm
TOX1 VOC TOX2
00.00
LEL 0Lamp20.9 OXY
•“Lamp” display along with audible alarm
indicates that PID lamp has failed to light
•Press “Y/+” key to clear alarm, if it clears
MultiRAE Plus is ready for use
•If alarm does not clear, wait a few minutes
and check again

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Lamp Alarm
•If after a few minutes the “Lamp” message
remains, turn off MultiRAE Plus and restart
•If after restart “Lamp” message disappears,
MultiRAE Plus is ready for use
•If after restart “Lamp” message remains, the
PID Lamp needs service
TOX1 VOC TOX2
00.00
LEL 0Lamp20.9 OXY

The Hazardous Environment Detection Company
MultiRAE Plus Start-up: Pump Alarm
TOX1 VOC TOX2
00.00
LEL 0Pum
p
20.9 OXY
•Every time the MultiRAE Plus is used it is
important to check pump flow
•Block the filter on the pump inlet
•Reset pump alarm by pressing the “Y” key
•If pump does not go into alarm, check for
loose/cracked filter or service pump

The Hazardous Environment Detection Company
3 Display Modes
•Text Mode: 3 screens and has password
to get into programming (default mode)
•Display Mode: 7 screens and has
password to get into programming
•Advanced Mode: 11 screens for most
advanced users