NDIR Gas Analyzer for heat treatment furnace (ZFG)

Continuous measurement of CO, CO2, CH4 in heat treatment furnace

Simultaneously and continuously measures concentrations of 2 different gases

  • Repeatability: ±0.5% FS
  • CP (Carbon Potential) calculation available (option)
  • Single-beam system: long-term stability and low maintenance
  • Simultaneous and continuous measurement of 2 different gases
  • Compact and lightweight (approx. 5 kg)

Specifications

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

NDIR Gas Analyzer for heat treatment furnace (ZFG)