IMR EX660 Operation Manual

IMR EX660

Portable Multi-Gas Detector

Operation Manual

IMR Environmental Equipment, Inc.

3634 Central Ave.

St. Petersburg, FL 33711

Phone: [phone]

E-mai: [e-mail]

IMR EX660

SAFETY INFORMATION

Incorrect operation or unsuitable using environment may attenuate the instrument’s performance. Therefore, please first
read the below safety information carefully before using and then operate this device.
 Please don't use the defective device. Before using, please check if there is crack or spare part missing. If yes,

please contact the seller immediately.

 It's suggested that the user carry out the "Bump Test" by following Clause 5.3 of this manual before using the

device. If the device reading is beyond the specified range, please calibrate the device by following Clause 5.7 and

5.8 of this manual.

 Periodic Bump test will test the response feature of the sensor. Please make sure that the visual, audible and

vibrative alarm signals are ok.

 Only accessories which are specified for IMR EX660 or permitted by the seller are allowed to be used.
 Only the charger which is specified for IMR EX660 is allowed to be used. It's forbidden to charge the device in

the dangerous environment.

 Please don't expose the device to the exceeding-range gas environment for long time. Otherwise, it will badly

influence the performance and even damage the device.

 If exposed to the environment consisting of leaded compound, sulfocompound, organic phosphorus compound or

silicon, the gas sensor will be poisoned. Please don't use the device in the above environment.

 Please don't expose the device to the environment which consists of H2S, hydrocarbons gas or high corrosive gas

for long time. Otherwise, it will restrain the response of the gas sensor and reduce the sensitivity. If the device has
to be used in the above environment, please follow Clause 5.3 to carry out the Bump Test before using it.

 Please don't expose the device to the environment which has electric shock, strong magnetic field or serious

continuous mechanic shocking.

 There is a lithium battery inside the device. Please don't place the useless battery together with the rubbish. The

useless battery should be discarded by qualified withdrawers.

 It's forbidden to disassembly, adjust or repair the device without permission.
 Please avoid the device falling from high place or serious shocking.

 Any other operation beyond this manual, please contact the seller.

IMR Environmental Equipment, Inc.

2

IMR EX660

1. Brief Introduction

IMR EX660 is a compact and lightweight multi gas detector that continuously measures combustibles, O2, CO, H2S and
other toxic gases in ambient air. By using 6 sensors, it can detect at most 7 gases at the same time. Its functional and
watertight design (IP 66) incorporates a Bump proof, rubberized housing to meet the toughest requi rements of harsh
environments.

2. Main Features

 Advanced 16 digit MCU with low consumption
 Ultra-wide angle LCM screen
 Adjustable 2-level alarm points
 Adjustable calibration point
 Self-protection design for com bus tible gas sensor
 Battery low voltage alert function
 With real-time clock
 Interchangeable smart sensor module design
 Self-adjustment design
 Audible, visual and vibrate alarm signals
 Data communications function
 STEL/TWA alarm for toxic gases
 Design of self-test, self-diagnose and self-repairing
 Password management
 Intrinsically safe design

3. Technical Specification

Detecting method: Natural diffusion
Target gas: Refer to the Annex-1 in the end of this manual
Communication: RS 232
Response time:
Semi-conduct, catalytic, thermal conduct sensor ----------T90＜30s
O2, CO, H2S sensor---------------------------------------------- T90＜30s

Other sensors -----------------------------------------------------T90＜120s

Indication error range:
Combustible gas----------------------------------------------------- ±5% F.S.
Toxic gas------------------------------------------------------------------±5ppm

Working condition:
Temperature: -20℃～50℃ Humidity: ＜95%RH
Power source: Lithium battery (DC3.6V, 6600mAh)

IMR Environmental Equipment, Inc.

3

IMR EX660

Working time per charging: ≤ 30 hours continuously (no alarm)
Charging time: ≤ 6 hours
Explosion –proof grade: Exia IIC T4 Ga
Ingress protection: IP66
Dimensions and weight: 168mm×91mm×45mm about 500g

4. Structure and Functions

Appearance Display
information

5. Operation Instructions

5.1 Power on

When machine is power off, hold for more than 3s and the device will be power on. The screen shows as
below.

IMR Environmental Equipment, Inc.

4

IMR EX660

After power on, the detector will proceed self-test and display is as below drawing.

The device will make self-test on the buzzer, alarm lights and vibrator automatically. After self-test, the device enters
into normal detection status and the screen displays as below.

Note:
 If self-test fails, related information will be displayed. For details, please refer to Clause 10 Troubleshooting of

this manual.

 If self-test succeeds, the device enters into warm-up period of 3-30s, which depends on the sensor type.

5.2 Power off

In normal detection status, hold for 3 seconds and the screen will show “Shutting down…”. Meanwhile, the
buzzer will give out intermittent beep twice. Then machine is power off.

5.3 Bump test
Every day before using the device, the user is suggested carry out Bump test, so as to check if the device is working
normally.
Test method:
When the device is power on, put it into high level gas environment, which is higher than the preset high alarm point of
the device. If the entire device’s function is ok, then device can be used in the working area.
Note:

 If any reading on the screen is beyond the prescribed display error range, please follow Clause 5.7 and 5.8 of this

manual to re-calibrate it.

IMR Environmental Equipment, Inc.

5

IMR EX660

 If detector does not response or showing errors, please contact the seller for re pai rin g .

5.4 Menu explanation

5.4.1 Common menu

In the normal detection interface, press both and simultaneously and the device enters into common
menu setting interface. Below is the button function:

Menu Submenu Remarks

When changing the date or time, the selected bit will
blink.

When changing the mode, the selected bit will blink.

DATE
TIME

ALARM

MODE

RECORD

GAP

CAUTION

MESSAGE

BATTERY MESSAGE

BACKLIGHT

TIME

Set time gap for record saving.

Black box means this item is selected.

Display battery voltage and remaining work time

Backlight time will be increased
by 5s each time.

After enterin g into certain submenu, the user can change the item value by pressing and save the setting by

pressing . The user can also exit without saving changes by pressing .

IMR Environmental Equipment, Inc.

6