NDIR gas analyzer (ZKJK) (substitute for ZRG)

ZKJK is the substitute for the obsoleted model ZRG.

Size and terminal allocation are designed same with ZRG for ease of replacement.

  • Simultaneously and continuously measures up to 3 components among NO, SO2, CO, CO2, CH4, and O2
  • Hardly affected by interference from other gases
  • Optional functions include: automatic calibration, O2 correction, averaging, concentration alarm, remote range-switching, and more.
  • Easy-to-see backlit LCD

Specifications

Dimensions H 835 × W 218 × D 202 mm
Weight Approx. 16 kg
Power supply voltage 100-240 V AC, 50/60 Hz, 250 VA
Ranges NO: 0–100 ppm…5000 ppm
SO2: 0–100 ppm…10 vol%
CO: 0–100 ppm…100 vol%
CO2: 0–100 ppm…100 vol%
CH4: 0–200 ppm…100 vol%
O2: 0–10 vol%…25 vol%
Principle Non-dispersive infrared sensor (double beam)
External zirconia sensor for O2 measurement (ZFK7)
Repeatability ±0.5% FS
Zero drift ±1.0% FS per week (±2% FS per week for 100–200 ppm range)
Span drift ±2.0% FS per week
Gas sampling amount Approx. 0.5 L/min
Response time ≤ 60 s
Output signal 4–20 mA DC or 0–1 V DC
Contact output Device error, range identification, under auto-calibration, pump ON/OFF, limit alarm
Contact input Remote switchover of ranges, auto-calibration remote start, remote hold
Standard functions Output signal hold, remote output hold, range switch, range identification, auto calibration, auto calibration remote start, auto zero calibration, device error, pump ON/OFF, average reset, auto calibration interlocking
Option O2 correction, O2 corrected average values, communication

NDIR gas analyzer (ZKJK) (substitute for ZRG)