The product
- Easily replaceable zirconia element
- Fast response: 4 s to 7 s
- Operation available without opening the cover
- TIIS and NEPSI flameproof certified
Detector (ZFKE)
Converter (ZKME)
Detector with flow guide tube
Easily replaceable zirconia element
Specifications
General specifications
| Target | O2 in incombustible gas |
|---|---|
| Principle | Direct insertion zirconia sensor |
| Range | 0 to 2…50 vol% (user configurable two ranges) (in 1 vol% steps) |
| Repeatability | ? ±0.5% FS |
| Linearity | ? ±2% FS |
| Response time | 4–7 s for 90% response (from calibration gas inlet) |
| Warm-up time | Approx. 30 min (20 min when using ejector) |
| Analog output | 4–20 mA DC (allowable load resistance ? 500?) or 0–1 V DC (output resistance ? 100?) |
| Power supply | Rated voltage 100–120 V AC (operating voltage: 90–132 V AC) 200–240 V AC (operating voltage: 190–264 V AC) Rated frequency 50/60 Hz |
| Power consumption | Max. 240 VA Normal 70 VA |
Detector ZFKE
| Gas temperature | Flow guide tube type: -10°C to +600°C |
|---|---|
| Gas pressure | -3 kPa to +3 kPa |
| Operating temperature | -10°C to +60°C |
| Enclosure | Dustproof and rainproof, IEC IP66 equivalent |
| Weight | Approx. 3 kg (excluding the flow guide tube) |
| Ejector air inlet flow rate | 5 L/min to 10 L/min |
| Ex-proof standards | TIIS Ex d IIB T4 NEPSI Ex d IIC T4 Gb |
| Flow guide tube | With or without blow-down nozzle Flange: JIS 5K 65A FF or as specified Insertion length: 0.3, 0.5, 0.75, or 1 m |
Converter ZKME
| Contact output | 6 points, SPST, 250 V AC/3 A or 30 V DC/3 A (under maintenance, device error, alarm, zero calibration, span calibration, under blow-down) |
|---|---|
| Contact input | 3 points, ON: 0 V, OFF: 5 V, ? 10 mA (remote hold, calculation reset, heater OFF, blow down, inhibition of calibration, calibration start, range change) |
| Communication | RS232C (MODBUS) RS485 (MODBUS) (option) |
| Combustion efficiency display | (option) |
| Operating temperature | -20°C to +55°C |
| Enclosure | Dustproof and rainproof, IEC IP65 equivalent |
| Weight | Approx. 22 kg (excluding cable and detector) |
| Ex-proof standards | TIIS Ex d IIB T6 NEPSI Ex d IIC T6 Gb |
