General Introduction
Yokogawa GD402 gas density analyzer converter works with detector GD40 for measuring gas density, specify gravity and molecular weight, it is a rugged microprocessor based converter designed in two versions to meet both general area and explosion-proof application requirements. In addition to the display of several key data items, the converter also provides the choice of three different means for calibration: automatic; semiautomatic and one-touch manual operation. GD402 gas density analyzer converter comes with a simple, and user-friendly interface with low installation cost.
General Specification
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Main Characters
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Description
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Output Signals
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4-20mA DC, 2 outputs
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Power Supply
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100 to 240 V AC, 24 V DC
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Power Consumption
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Approximately 12 W
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Sample gas conditions
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All gases except for corrosive gas and acetylene gas
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Sample gas temperature
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-10 to 50°C (non-condensing)
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Sample gas pressure
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50kPa to 588.4kPa (abs)
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Sample gas flow
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0.1 to 1 L/min
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Construction
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GD402G: General purpose converter. (Non-Explosion-proof)
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GD402T: FM Explosion-proof Approval.
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GD402V: CSA Explosion-proof Approval
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GD402R: TIIS Explosion-proof Approval
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3.Measure Specification
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Item
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Density kg/m3
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Density lb/ft3
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Specific Gravity
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Molecular Weight
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Concentration vol%
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Range
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0 - 6 (compensated)
0 - 60 (physical)
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0 - 0.4 (compensated)
0 - 4 (physical)
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0 - 5
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0 - 140
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0 - 100
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Minimum Range
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0.1
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0.01
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0.1
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4
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Concentration equivalent
to 0.100 kg/m3
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Response Time 90%
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approx. 5 sec
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approx. 5 sec
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approx. 5 sec
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approx. 5 sec
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approx. 5 sec
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Linearity
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+/-1%FS
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+/-1%FS
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+/-1%FS
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+/-1%FS
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+/-1
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Repeatability
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+/-0.001
or +/-0.5%FS
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+/-0.0001
or +/-0.5%FS
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+/-0.001
or +/-0.5%FS
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+/-0.02
or +/-0.5%FS
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+/-0.5% or Concentration
equivalent to
+/-0.001kg/m3
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Long term stability
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+/-0.003/month
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+/-0.002/month
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+/-0.003/month
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+/-0.07/month
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Concentration equivalent
to +/-0.003 kg/m3/month
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4.Model Selection
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Model
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Suffix Codes
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Description
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GD402G
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General purpose model, 6 cable glands included
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GD402T
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FM certified explosion proof model. Gland threads 1/2 NPT. No cable glands included
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GD402V
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CSA certified explosion proof model. Gland threads 1/2 NPT. No cable glands included
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GD402R
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TIIS certified explosion proof model. Gland threads G3/4. No cable glands included
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Label approval
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-D
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24 V DC
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-A
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100-240 V AC
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Label and approval
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-E
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English label
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-J
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TIIS approval, English label (only GD402R)
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Instruction Manual
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-E
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English
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Options
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/PA
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Panel mounting
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/U
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Universal (Pipe and Wall) Mounting
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/H
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Hood
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