<1. Specifications>
1-4
IM 11T03E01-51E
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Weight
Approximately 7 kg (with pipe mounting bracket)
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Detector unit
When the system is ordered to be used as a hydrogen purity meter, an optional pressure
transmitter is required for pressure compensation.
• If /EJAJ1
, /EJAF2
, /EJAF3
or, /EJAF4
are ordered, the detector unit and the
pressure transmitter and the tubing in between will all be integrated on a single mounting
plate. This allows the space where the pressure transmitter is normally mounted to be
used effectively for other purposes.
1.1.3
GD402G Converter
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Display
Reading:
Digital (6 digits maximum; resolution: 0.0001 kg/m
3
)
Data items shown:
Measured value:
Always on display.
Alarm indications: Abnormal concentration, abnormal pressure range of input and abnormal
value of calibration.
Parameters for calibration: Time of calibration, settling time, starting time of calibration and
calibration cycle
Self-diagnostic indications: Sensor oscillation shutdown, abnormal oscillation frequency of
sensor, failure in sensor temperature detection, failure in A/D
conversion stage and memory failure.
Alarm settings:
The contact state can be set to either “normally open (NO)” or “normally
closed (NC)” depending on the needs of the application.
Temperature:
Temperature of gas being measured
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Contact Outputs/Input
Contact output:
Signals for Maintenance, Fail, Hi/Lo alarms
Contact capacity: 250 V AC at 3 A or 30 V DC at 3 A
Contact input:
Signal for switching between the Hydrogen Purity meter and the
Replacement meter
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Calibration
Manual (one touch), Semi automatic, Automatic calibration
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Communication
Protocol:
BRAIN communication
Data items that can be transmitted by the hand-held terminal are
numerical data, such as concentration, temperature and pressure, alarm
setpoint and self-diagnostic parameters.
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Ambient Conditions
Temperature:
-10 to 55°C (14 to 131°F)
Humidity:
5 to 95%RH
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Installation
panel-mounted
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Finish
Front cover: Equivalent to Munsell 0.6GY3.1/2.0
Case:
Equivalent to Munsell 2.5Y8.4/1.2
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Weight
Approx. 3 kg (including mounting bracket)
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Fuse
250 V 1 A time lag type authorized VDE/SEMKO 100 to 240 V AC Model
250 V 2 A time lag type authorized VDE/SEMKO 24 V DC Model
Summary of Contents for GD402G /M1
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