GFG · Germany · Fixed systems
ZD22
GFG ZD22 oxygen transmitter (zirconium dioxide)
Oxygen transmitter with a zirconium dioxide sensor, range 0.1-25% by volume, IP54 plastic housing
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Description
About ZD22
ZD22 is a GFG 22 series transmitter using an amperometric oxygen sensor with a zirconium dioxide oxygen pump cell. The sensor has long-term stability and high selectivity, with a standard measuring range of 0.1-25% by volume (other sensors give 0.01-2% by volume, 1-96% by volume or 10-1000 ppm). Analog 4-20 mA / 0.2-1 mA or digital RS485 (Modbus RTU) signal transmission. IP54 plastic housing, with a display version that changes color on alarm. ZD22 is not for use in hazardous areas.
Key features
- Amperometric zirconium dioxide oxygen sensor
- Measuring range 0.1-25% by volume O2 (depending on sensor)
- Long-term stability and high selectivity
- Analog 4-20 mA / 0.2-1 mA or digital RS485 signal
- IP54 plastic housing, display version changes color on alarm
Specifications
Technical data
| Operating principle | Zirconium dioxide oxygen sensor (amperometric) |
|---|---|
| Measuring range | 0.1-25% by volume O2 (other sensors: 0.01-2%, 1-96% by volume or 10-1000 ppm) |
| Resolution | 0.1% by volume |
| Response time | t90 under 5 seconds |
| Outputs | Analog 4-20 mA / 0.2-1 mA or digital RS485 |
| Power supply | 24 V DC (15-30 V DC permitted) |
| Enclosure / protection | Plastic, IP54 |
| Dimensions | 96 x 140 x 49 mm (W x H x D) |
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