| Principle |
CO, CO2, CH4: Non-dispersion infrared (NDIR) sensor
O2: galvanic sensor |
| Components |
1 component: CO, CO2, CH4
2 components: CO2 + CO, CH4 + CO, CO2 + CH4
3 components: CH4 + CO2 + CO
O2 measurement can be added to above all. |
| Range |
CO: 0–200 ppm…100%
CO2: 0–200 ppm…100％
CH4: 0–1000 ppm…100%
O2: 0–5% or 0–25% |
| Measurement range |
3 (Maximum range ratio 1 : 5) |
| Repeatability |
±0.5% FS |
| Zero drift |
≤ ±1.0% FS per day |
| Span drift |
≤ ±1.0% FS per day |
| Linearity |
±2.0% FS |
| Response time |
≤ 50 s (for 90% response)
O2 measurement: ≤ 3 min |
| Output signal |
4–20 mA DC (linear) or 0–1 V DC (linear), up to 8 points, non-insulation
(instantaneous value, O2-corrected instantaneous value, O2-corrected average value, CP calculated value) |
| Display |
backlit LCD, English or Japanese |
| Functions |
O2 correction, averaging, CP calculation, output signal hold, automatic display off |
| Communication |
RS-232C (Modbus protocol) |
| Operating environment |
0–40°C, RH 90% or less |
| Power supply voltage |
100–115 V AC or 200–240 V AC, 50/60 Hz |
| Power consumption |
Approx. 150 VA |
| Dimensions and weight |
365 (H) × 211 (W) × 527 (D) mm, approx. 12 kg |
| Gas conditions |
Temperature |
0–40°C at inlet |
| Flow rate |
0.5 L/min ±0.2 L/min per optical system |
| Dust |
≤ 10mg/Nm3 |
| Pressure |
≤ 2 kPa (gas outlet should be open to the atmospheric air) |
| Mist |
Unallowable |
| Corrosive gas |
HCl: ≤ 10 ppm |