1.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.
2.General Specification
Main Characters | Description |
Output Signals | 4-20mA DC, 2 outputs |
Power Supply | 100 to 240 V AC, 24 V DC |
Power Consumption | Approximately 12 W |
Sample gas conditions | All gases except for corrosive gas and acetylene gas |
Sample gas temperature | -10 to 50°C (non-condensing) |
Sample gas pressure | 50kPa to 588.4kPa (abs) |
Sample gas flow | 0.1 to 1 L/min |
Construction | GD402G: General purpose converter. (Non-Explosion-proof) |
GD402T: FM Explosion-proof Approval. | |
GD402V: CSA Explosion-proof Approval | |
GD402R: TIIS Explosion-proof Approval |
3.Measure Specification
Item | Density kg/m3 | Density lb/ft3 | Specific Gravity | Molecular Weight | Concentration vol% |
Range | 0 - 6 (compensated) 0 - 60 (physical) | 0 - 0.4 (compensated) 0 - 4 (physical) | 0 - 5 | 0 - 140 | 0 - 100 |
Minimum Range | 0.1 | 0.01 | 0.1 | 4 | Concentration equivalent to 0.100 kg/m3 |
Response Time 90% | approx. 5 sec | approx. 5 sec | approx. 5 sec | approx. 5 sec | approx. 5 sec |
Linearity | +/-1%FS | +/-1%FS | +/-1%FS | +/-1%FS | +/-1 |
Repeatability | +/-0.001 or +/-0.5%FS | +/-0.0001 or +/-0.5%FS | +/-0.001 or +/-0.5%FS | +/-0.02 or +/-0.5%FS | +/-0.5% or Concentration equivalent to +/-0.001kg/m3 |
Long term stability | +/-0.003/month | +/-0.002/month | +/-0.003/month | +/-0.07/month | Concentration equivalent to +/-0.003 kg/m3/month |
4.Model Selection
Model | Suffix Codes | Description | |||
GD402G | General purpose model, 6 cable glands included | ||||
GD402T | FM certified explosion proof model. Gland threads 1/2 NPT. No cable glands included | ||||
GD402V | CSA certified explosion proof model. Gland threads 1/2 NPT. No cable glands included | ||||
GD402R | TIIS certified explosion proof model. Gland threads G3/4. No cable glands included | ||||
Label approval | -D | 24 V DC | |||
-A | 100-240 V AC | ||||
Label and approval | -E | English label | |||
-J | TIIS approval, English label (only GD402R) | ||||
Instruction Manual | -E | English | |||
Options | /PA | Panel mounting | |||
/U | Universal (Pipe and Wall) Mounting | ||||
/H | Hood | ||||
5.Basic System Configuration
6.External Dimensions
