| Principle |
Non dispersive infrared absorption method (single-beam) |
| Measurable components and ranges |
CO2: 0 to 0.5%…100 vol%
CO: 0 to 0.5%…100 vol%
CH4: 0 to 1%…10 vol%
• Up to two components
• 2 switchable ranges
• Maximum range ratio 1 : 5
|
| Repeatability |
≤ ±0.5% FS |
| Linearity |
≤ ±1.0% FS
≤ ±2% FS when range ratio is 1 : 4 or 1 : 5 |
| Zero drift |
≤ ±2% FS per week |
| Span drift |
≤ ±2% FS per week |
| Interference effect |
≤ ±2% FS |
| Response time |
≤ 10 s (90% response from gas inlet) |
| Analog output signal |
4–20 mA DC, 0–1 V DC, 0–100 mV DC, or 0–10 mV DC
Instantaneous value output (concentration of each component)
CP value output (option) |
| Display |
Backlit LCD (with automatic light off function)
Japanese or English (as specified)
Instantaneous value, CP value (option), parameter setpoints |
| Range switchover |
by key operation, automatic, or
by external contact input (option) |
| Contact output |
SPST relay contact
Device error (standard), range identification signal (option) |
| External contact input (option) |
No-voltage contact
Remote range switching, remote hold of output signal |
| Gas inlet/outlet |
Rc1/4 or NPT 1/4 |
| Purge gas flow rate |
1 L/min (as needed) |
| Finish color |
Off-white (Mansell 10Y7.5/0.5 equivalent) |
| Enclosure |
Steel casing, indoor use |
| Surrounding temperature/humidity |
-5°C to 45°C, RH 95% or lower (no condensation) |
| Warm-up time |
Approx. 30 min |
| Mounting method |
Panel mount |
| Power supply voltage |
100–240 V AC, 50/60 Hz, 50 VA |
| Dimensions |
H 211 x W 218 x D 257 mm |
| Weight |
Approx. 5 kg |
| Calibration gas |
Zero: N2 or dehumidified air
Span: 90%–100% of each range |
| Gas conditions |
Flow rate |
0.5 L/min ±0.2 L/min |
| Temperature |
0°C to 40°C |
| Pressure |
≤ 5 kPa |
| Dust |
≤ 0.3 μm |
| Mist |
Unallowable |
| Moisture |
Below the saturation vapor density at room temperature (Non condensing) |
| Corrosive gas |
HCl ≤ 1 ppm |