Crowcon Gasman II Manuel utilisateur
GASMAN II
PERSONAL SINGLE GAS MONITOR
INSTRUCTION MANUAL
ISSUE NO. 5 11/99 STOCK NO.
M07-118
Gasman II
Flammable
Rechargeable Batteries
Upon receipt we recommend that Flammable
instruments are fully charged for 16 hours
prior to use.
Gasman II Instruction Manual
Issue 5 Page 2
11/99
This product has been tested and
found to comply with the European
Directive 89/336/EEC
WARNING: Substitution of components may impair
Intrinsic Safety.
Contents Page
1. Quick Operating Guide 4
2. Unpacking 4
3. Introduction 5
4. Specification 6
4.1 Instrument Settings 8
4.2 Battery Lifetime 9
4.3 General Assembly 10
5. Operation 11
5.1 Switch-on sequence 11
5.2 Display Symbol Guide 12
6. Batteries 15
6.1 Recharging 15
6.2 Changing the batteries 16
6.3 Charger Supplies 16
7. Alarm Types 16
8. Keypad Adjustments 18
8.1 Viewing settings 18
8.2 Adjusting settings 19
8.3 Zeroing 20
8.4 Calibration 20
9. Accessories 21
9.1 Calibration Adaptor 21
9.2 Universal Clip 21
9.3 Rubber Boot 22
10. Routine Checking 22
10.1 General 22
10.2 Sensor filter 22
10.3 Zero & Calibration 23
10.4 Sensor Replacement 23
11. Troubleshooting Guide 24
11.1 Error Codes 25
12. Datalogging and Datacomms 26
12.1 Hardware Interface 27
13. Sensor Limitations 27
14. Accessories and Spare Parts 28
14.1 Accessories List 28
14.2 Spare Parts List 29
Issue 5 Page 3
11/99
1. Quick Operating Guide
Switch on: Press large button; alarm
test and LCD test occurs,
followed by battery level
display.
Normal condition: Gas level displayed on
LCD*. Intermittent
‘confidence’ signal
(if selected).
Alarm condition: Fast flashing red LEDs
and sounder.
Alarm reset: Press large button when
hazard has passed.
Activate backlight: Press and hold large
button.
Switch Instrument Press both buttons
Off: together & release.
Zero instrument: When unit is off, press
small button & hold.
The symbol will
appear. Keeping the small
button pushed in, press
the large button.
For oxygen models, the symbol appears,
and pressing the large button sets the reading
to 20.9%.
* reading may take a few seconds to settle
after switch-on.
2. Unpacking
Check the shipment against the packing list
and carton labels. Instruments and
accessories may be packed separately. Smaller
Gasman II Instruction Manual
Issue 5 Page 4
11/99
items may be located under cardboard partitions,
so check carefully for contents. If you are missing
any items please contact Crowcon immediately.
Be prepared to quote the instrument’s serial
number which can be found at the bottom of the
label on the rear of the instrument.
Ensure batteries are fresh/charged prior to use.
See ‘Switch on Sequence’ (Section 5.1) for details
of the battery level indicator.
3. Introduction
The Crowcon Gasman II is a personal gas
detector which can continuously monitor the level
of oxygen or the presence of a single toxic or
flammable gas. It is designed to be worn by
individuals working in hazardous environments
such as confined spaces and will give a loud
audible and bright visual alarm warning when pre-
set concentrations of gas are exceeded.
It is a simple instrument to use, designed to
provide reliable service for many years. The
shape of the instrument has been designed to fit
comfortably against the body and pose the least
restriction to movement. It can fit in a pocket or
on a belt.
Datalogging is standard on all models providing
approximately 1 week capacity at a 1 minute
sampling rate. This capacity can be extended by
reducing the sampling rate (see Section 12).
Toxic and oxygen versions are fitted with alkaline
batteries which offer a life of 1 year*. Flammable
versions are fitted with re-chargeable nickel metal
Issue 5 Page 5
11/99
hydride batteries which have a life of 10-12 hours*
and up to 1000 charge/discharge cycles.
* depending on alarm incidence.
4. Specification
Weight 210g (7.4oz)
Dimensions 130h X 60w X 30d mm
(5.1h X 2.4w X 1.2d inches)
Typical measuring 0-100% LEL flammable gas,
ranges 0-25% volume O2,
0-50ppm H2S, NH3,
0-500ppm CO,
0-5 ppm CI2, PH3,
0-10ppm SO2, NO2,
0-25ppm HCN,
0-999PPM H2.
Typical alarm 20 & 40% LEL methane,
levels 19% and 23% oxygen,
10 & 20ppm
hydrogen sulphide,
50 & 100ppm
carbon monoxide.
Typical TWA alarm 15ppm STEL, 10ppm
levels for toxic gas LTEL (H2S),
version 300ppm STEL, 50ppm LTEL
(CO).
Typical response methane 20 seconds,
times (T90)oxygen 10 seconds, toxic
gas 20 seconds
Visual alarm Ultra bright flashing red
indicators LED pair in alarm.
Gasman II Instruction Manual
Issue 5 Page 6
11/99
Audible alarms Programmable from five
different tones, 85dBA at 1
metre. (92dBA at 1 ft).
Intermittent blip for
discharged battery.
Selectable ‘confidence’ blip.
Fault warning.
Display Custom 7 segment high
contrast LCD giving gas
reading. Symbols for low
battery, peak hold, zero
mode, cal mode and alarm
annunciation. LED backlight.
Operating -20° to 50°C (-4°F to 122°F)
temperature range
Humidity 0-95% RH, non-condensing.
Expected sensor Pellistor 5 years, toxic gas 3
life years, oxygen 1 year.
Batteries 1.1Ah nickel metal hydride
rechargeable: 10-12 hours
between recharge. AA size
alkaline replaceable: Typical
life 1 year.
Aspirator Manual bulb type with 2m of
hose, non-absorbent,
hydrocarbon resistant.
Approval code Toxic/oxygen: EEx ia IIC T4
(Europe) (Tamb=55°C)
Flammable:
EEx iad IIC T3 (rechargeable),
T4 (non rechargeable)
Issue 5 Page 7
11/99
(USA & Canada) Class 1, Division 1, Groups A
B,C & D.
Standards EN50014, EN50020,
(Europe) EN50018
(USA & Canada) UL913
RF Immunity Tested to IEC801-3 and
meets EN50082-2
RF Radiation Tested to EN55022 Class B
and meets EN50081-2
Battery charging Standard charge rate 16
hours, trickle charge will not
damage batteries. Charger
Input 11-29V DC. Mains
adaptors have 110 or 230V
AC inputs. Batteries must be
charged in an ambient
temperature between 0°C
and 40°C.
4.1 Instrument Settings
Unless otherwise specified, instruments will be
shipped from the factory with default settings.
These cover alarm tones, logging period, and
detailed operation of each alarm point. Full
details are printed on the Configuration Report
supplied with each instrument. Those settings
which are changeable from the instrument's
keypad are described in section 8.
All configuration settings may be viewed and
changed using a PC running the SetPortable
interface program (Section 12).
Gasman II Instruction Manual
Issue 5 Page 8
11/99
4.2 Battery Lifetime
•Rechargeable flammable instruments’
batteries last 12 hours on a full charge.
•Non-rechargeable flammable instruments
using alkaline batteries last 24 hours.
•Toxic and Oxygen instruments last 1 year
using alkaline batteries, under normal usage
conditions.
Issue 5 Page 9
11/99
4.3 General Assembly
Key:
1 Gas Sensor
2 Fixing screw/charging contact
3 Small button
4 Calibration adjuster cover
5 Alarm LED lens
6 Alarm sounder
7 Top moulding
8 Gas legend
9 Display window
10 Large button
11 Base moulding
12 Universal clip
13 Certification labels
Gasman II Instruction Manual
Issue 5 Page 10
11/99
Autres manuels pour Gasman II
1
Table des matières
Autres manuels Crowcon Moniteur
