Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402

The ZR402G converter is equipped with an LCD touch screen which has various setting displays, a calibration display, oxygen concentration trend display, with easier operation and improvement of display functions. The converter is equipped with various standard functions such as measurement and calculation as well as maintenance functions including self-test. The ZR22G separate-type detector uses a high-reliability zirconia sensor, and its heater assembly can be replaced on site. The detector is mounted, for example, on the wall of a flue and can measure the gases directly. The ZR22S separate-type detector for explosion-proof applications is also available.
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Product Details

Features:

The built-in heater assembly of the probe can be 

replaced on site, reducing maintenance costs.

The probe uses a long-life, high-reliability Zirconia

sensor.

The probe uses three-reference gas supply methods 

(natural air convection, instrument air, and pressure 

compensated) in its applications.

The separate type converter incorporates a LCD 

touchscreen for ease of operation.

This converter can be used as an oxygen analyzer as 

well as a high temperature humidity analyzer.

The integrated type integrates both probe and 

converter, to reduce wiring, piping, and installation 

costs. This type of unit uses an optical switch for 

ease of operation at the site.

Remote maintenance using digital communications

(HART) reduces maintenance costs. 



Description:

Oxygen Analyzer Measurement Object: Oxygen concentration in  combustion exhaust gas and mixed gas  (excluding inflammable gases may not be applicable corrosive gas such as  ammonia, chlorine is present-check with  YOKOGAWA. Measurement System: Zirconia system Measurement Range: 0.01 to 100 vol% O2 Output Signal: 4 to 20 mA DC (maximum load  resistance 550 Ω) Setting Range: Any setting in the range of 0 to 5  through 0 to 100 vol% O2 (in 1 vol% O2),  or partial range Digital Communication (HART): 250 to 550 Ω, depending on number of field devices connected to the loop (multi-drop mode). Display Range: 0 to 100 vol% O2 Warm-up Time: Approx. 20 min. Repeatability: (Excluding the case where the reference gas is by natural convection) ± 0.5% Maximum value of set range; range from 0 to 5 vol% O2 or more and less than 0 to 25 vol% O2 range ± 1% Maximum value of set range; range from 0 to 25 vol% O2 or more and up to 0 to 100 vol% O2 range Linearity: (Excluding standard gas tolerance) (Excluding the case where the reference gas is by natural convection) (Use oxygen of known concentration (with in the measuring range) as the zero and span calibration gases.) ± 1% Maximum value of set range; 0 to 5 vol% O2 or more and less than 0 to 25 vol% O2 range (Sample gas pressure: within ± 4.9 kPa) ± 3% Maximum value of set range; 0 to 25 vol% O2 or more and less than 0 to 50 vol% O2 range (Sample gas pressure: within ± 0.49 kPa) ± 5% Maximum value of set range; 0 to 50 vol% O2 or more and up to 0 to 100 vol% O2 range (Sample gas pressure: within ± 0.49 kPa) Drift: (Excluding the first two weeks in use) (Excluding the case where the reference gas is by natural convection.) Both zero and span ± 2% Maximum value  of set range/month

QQ20201106135605

QQ20201106135637


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