Owner's manual

<2. Specications>
2-12
IM 11M12A01-04E
2.2.2 ZR20H Automatic Calibration Unit
This automatic calibration unit is applied to supply specied ow of reference gas and calibration gas
during automatic calibration to the detector in a system conguration (System 3).
• Specications
Equipped with the analyzer when automatic calibration is specied in the sufx code of the ZR202G
Integrated type by selecting either “-A (Horizontal mounting)” or “-B (Vertical mounting)”. The ZR20H
should be arranged when automatic calibration is to be required after the ZR202G has been installed.
Ask Yokogawa service station for its mounting.
Construction: Dust-proof and rainproof construction; NEMA4X/IP67 (excluding owmeter)
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 5.6 BG3.3 /2.9)
Cover; Mint green (Munsell 5.6 BG3.3/2.9)
Piping Connection: Rc 1/4 or 1/4 NPT
Power Supply: 24V DC (from ZR202G)
Power consumption: Approx.1.3 W
Reference Gas Pressure: Sample gas pressure plus Approx. 150 kPa (690 kPa max.), (Pressure at
inlet of automatic calibration unit)
Air Consumption: Approx. 1.5 l/min
Weight: Approx. 2 kg
Ambient Temperature: -20 to +55°C, no condensing and freezing
Ambient Humidity: 0 to 95% RH
Storage Temperature: -30 to +65°C
• Model and Codes
Model Sufx code Option code Description
ZR20H - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Automatic calibration unit for ZR202G *1
Gas piping
connection
-R
-T
- - - - - - - - - - - -
- - - - - - - - - - - -
Rc 1/4
1/4 NPT
Reference gas *2 -E
-P
- - - - - - - - - - - -
- - - - - - - - - - - -
Instrument air
Pressure compensated
Mounting -A
-B
- - - - - - - - - - - -
- - - - - - - - - - - -
Horizontal mounting
Vertical mounting
– -A - - - - - - - - - - - - Always -A
*1 Ask Yokogawa service station for additional mounting of ZR20H to the preinstalled ZR202G.
*2 Select the appropriate reference gas of ZR20H according to the one of ZR202G.