ZR22G-100-S-P-C-T-T-E-A/F1 Yokogawa ZR22G Zirconia Oxygen/Humidity Analyzer

Measurement object

Oxygen concentration in combustion exhaust gas and mixed gas

Measurement system Zirconium oxide sensor

Measurement range 0.01 to 100 vol% O2

Output signal 4 to 20 mA DC, two points (ZR402G) (maximum load resistance 550Ω)

Setting range

Any setting in the range of 0 - 5 vol%O2 to 0 - 100 vol%O2 (in 1 vol% O2), or partial range

Digital communication (HART)

250 to 550Ω, depending on number of field devices connected to the loop (multi-drop mode)

Sample gas pressure

-5 to +250 kPa (Pressure compensation option necessary over +5 kPa)

Sample gas temperature

0 to 700℃ (Probe only)

700 to 1871℃ (with 0.15m probe with JIS 5K 32 FF flange and ZR22P High Temperature Probe Adapter)

Probe length

0.15, 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 3.6, 4.2, 4.8, 5.4 m

Contact output

Four points (one is fail-safe, normally open)

Contact input

Two points

Calibration

Method; zero/span calibration

Calibration mode; automatic, semi-automatic and manual (with an LCD touchscreen)

Construction of detector (ZR22G)

Heater and thermocouple replaceable construction. 

Non-explosion-proof. Equivalent to NEMA4X/IP66

Non-explosion-proof, outdoor installation, equivalent to NEMA4X/IP66

Ambient Temperature

Probe (ZR22G): -20 to 150℃

Reference Gas System

Instrument Air (preferred): 50 kPa (200 kPa with check valve) + the pressure inside the furnace; Approx. 1 Nl/min consumption

Natural convection

Power supply

85 to 264 V AC; 45 to 66 Hz

Performance of Yokogawa ZR22G-040-S-K-C-T-M-E-A ZR22G Zirconia Oxygen Analyzer Detector

Repeatability ±0.5% Maximum value of set range

Linearity ±1% Maximum value of set range

Drift ±2% Maximum value of set range/month

Response time (T90) 90% response within 5 sec (60 sec for explosion-proof ZR22S)