YOKOGAWA EXAxt ZR22G, User Manual, Page: 39 / 211

<2. Specifications>
2-20
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
2.5.2 ZR40H 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).
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Specifications
Used when auto calibration is required for the separate type and instrument air is provided.
The solenoid valves are provided as standard.
Construction:
Dust-proof and rainproof construction:
NEMA4X/IP67-only for case coating solenoid valve, not flowmeter
(excluding flowmeter)
Mounting: 2-inch pipe or wall mounting, no vibration
Materials: Body; Aluminum alloy, Piping; SUS316 (JIS), SUS304 (JIS), Flowmeter;
MA (Metha acrylate resin). Bracket; SUS304 (JIS)
Finish: Polyurethane corrosion-resistance coating, mint green (Munsell
5.6BG3.3/2.9)
Piping Connection: Refer to Model and Codes
Power Supply: 24 V DC (from ZR402G), Power consumption; Approx.1.3W
Reference Gas Pressure: Sample gas pressure plus approx. 150 kPa (690 kPa max.), (Pressure
at inlet of the Automatic Calibration Unit)
Air Consumption: Approx. 1.5 l/min
Weight: Approx. 3.5 kg
Ambient Temperature: -20 to +5°C, no condensation or freezing
Ambient Humidity: 0 to 95%RH
Storage Temperature: -30 to 65°C
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Model and Codes
Model Suffix code Option code Description
ZR40H - - - - - - - - - - - - - - - - - - - - - Automatic calibration unit for ZR402G
Gas piping
connection
-R
-T
- - - - - - - -
- - - - - - - -
Rc 1/4
1/4 NPT
Wiring
connection
-P
-G
-M
-T
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
Pipe connection (G1/2)
Pg 13.5
M20 x 1.5 mm
1/2 NPT
— -A - - - - - - - - Always -A