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GMI PS500 User Manual
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3-5
ALARMS
3.3 HIGH FLAMMABLE GAS
OVER-RANGE ALARM
Ca
uti
on:
Exposing
the
LEL
sensor
to
ammable
gas
above 100% LEL can damage the sensor
.
If
the
LEL
gas
reading
exceeds
120%
LEL,
the
displayed
value will change to four rising arrows, the tone of the audible
alarm will
change, and
the visual alarm
will ash
quickly
.
The
ashing
message
‘DANGER’
alternates
with
’OVER
RANGE’,
as shown in Fig. 3.3.
Alternates with
Fig. 3.3
Over
Range Alarm
36
38
Table of Contents
Default Chapter
3
Copyright
3
Liability
3
Modification Notices
3
Software
3
Disposal Advice
3
Safety
3
Areas of Use
4
Warranty
4
Table of Contents
5
Introduction
9
General Description
9
Features
11
Data Logging
12
Viewing Data Logged Readings
12
Hydrophobic Filter(S)
12
Construction
12
Identification Label
12
Certification
13
Identification of Symbols
13
Performance
14
Operation
15
Operating Procedure
15
Switching the Instrument on
16
Instrument Identification
17
Time and Date
17
Calibration Due Date
18
Select Calibration Gas
19
Select VOC Target Gas
20
Sensor Confirmation Check
21
Normal Operating Display
23
Switching the Display Backlight on / off
24
Viewing the Maximum and Minimum Recorded Values Since Switch on
24
Manual Data Log
26
Self Test
26
Voc Target Gas Selection
27
Alarms Reset or Acknowledge
28
Confidence Signal
30
Switching the Instrument off
30
REMOTE SAMPLING (with Pump Option)
31
Pump Option
31
Assisted Diffusion Option
32
Alarms
33
Gas Alarms
33
Flammable LEL Alarm Limit
33
Over-Range Flammable Gas Alarm Function
33
Oxygen (O ) Alarm Limits
33
Toxic Alarm Limits
34
Acknowledge Gas Alarms
36
High Flammable Gas Over-Range Alarm
37
Fault Alarms
39
Low Battery
39
Zero Fault
39
Zero Fault - Only Applicable to Instruments with CO2 Sensor Fitted
41
Sensor Fault
42
Sample Fault (Pumped Instruments Only)
44
Calibration Expired
45
Service Required
45
Operator Maintenance
47
Cleaning
47
Filter Replacement
47
Sensor Grille Filter
48
Sample Inlet Filter
50
In-Line Hydrophobic Filter (Accessory)
52
Battery Packs
54
Removing and Replacing a Battery Pack
60
Replacing Alkaline Batteries
61
Calibration
65
General Description
65
Calibration Validity
66
Accessories
67
Additional Information
69
Training
69
Gmi Website
69
Pid Sensors
71
What Is a Volatile Organic Compound (VOC
71
How Can a VOC be Measured
71
Maintenance and Cleaning of PID Sensors
71
Response Factors
72
Typical Operating Parameters
83
Physical Properties
83
Environment
83
Typical Flow Rate Information
83
Warm-Up / Stabilization Time
83
Response Time (T90
83
Index
85
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User Training
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GMI PS500 Specifications
General
Brand
GMI
Model
PS500
Category
Gas Detectors
Language
English
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