Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 31)

IM 11M12A01-05E 2-13
2. Specifications
2.2.2 ZR20H Automatic Calibration Unit
This automatic calibration unit is applied to supply specified flow of reference gas and
calibration gas during automatic calibration to the detector in a system configuration
(System 3).
• Specifications
Equipped with the analyzer when automatic calibration is specified in the suffix code of
the ZR202G Integrated type by selecting either “-A (Horizontal mounting)” or “-B
(Vertical mounting)”. The ZR20H should be arranged when auto-calibration is to be
required after the ZR202H has been installed. Ask Yokogawa service station for its
mounting.
Construction: Dust-proof and rainproof construction: NEMA4X/IP67 (excluding flow-
meter)
Mounting: Mounted on ZR202G, no vibration
Materials: Body: Aluminum alloy, Piping: SUS316 (JIS), SUS304 (JIS), Flowmeter: MA
(Methacrylate resin), Bracket; SUS304 (JIS)
Finish: Polyurethane corrosion-resistance coating, Case: Mint green (Munsell 5.6BG3.3
/2.9), Cover: Mint green (Munsell 5.6BG3.3/2.9)
Piping Connection: Refer to Model and Suffix Codes
Power Supply: 24V DC (from ZR202G), Power consumption: Approx. 1.3 W
Reference Air Pressure: Sample gas pressure plus Approx. 150 kPa (690 kPa max.),
(Pressure at inlet of auto-calibration unit)
Air Consumption: Approx. 1.5 l/min
Weight: Approx. 2 kg
Ambient Temperature: -20 to +558 C, no condensing or freezing
Ambient Humidity: 0 to 95% RH
Storage Temperature: -30 to +658 C
• Model and Codes
ZR20H
-R
-T
Model Suffix code Option code Description
Automatic calibration unit for ZR202G *1
Gas piping connection
1/4" NPT
Instrument air
Pressure compensated
Rc 1/4
Reference air *2 -E
-P
-A Always -A -
Mounting Horizontal mounting
Vertical mounting -A
-B
*1 Ask Yokogawa service station for additional mounting of ZR20H to the preinstalled ZR202G.
*2 Select the appropriate reference air of ZR20H according to the one of ZR202G.
T22E.EPS