Components; Zr22G Detector; General-Purpose Detector (Except For Zr22G-015) - YOKOGAWA ZR22G User Manual

5.2.9 Wiring for ZR40H Automatic Calibration Unit
This wiring is for operating the solenoid valve for the zero gas and the span gas in the ZR40H
Automatic Calibration Unit, in a system where the calibration gas flow rate is automatically
controlled (e.g. System configuration 3). When installing this wiring, proceed as follows:
Span gas solenoid valve
Zero gas solenoid valve
COMMON SPAN
Figure 5.11
Cable Specifications
Use a 3-core cable for the above wiring.
Wiring Procedure
M4 screws are used for the terminals of the converter. Each cable should be terminated
corresponding to crimp-on terminals. M4 screws are used for the terminals of the solenoid valve
as well.
ZR402G
Converter
AC-Z
AC-S
AC-C
Figure 5.12
Wiring inlet
2-G1/2, Pg13.5, M20 or 1/2NPT
ZERO
to ZR402G terminal "AC-COM"
to ZR402G terminal "AC-SPAN"
to ZR402G terminal "AC-ZERO"
Terminal screw : M4
Automatic Calibration Unit
ZR40H Automatic
Wiring for Automatic Calibration Unit
ZERO
COMMON
SPAN
Calibration Unit
Zero
Span
F5-13.ai
<5. Wiring>
F5-12E.ai
IM 11M12A01-02E 16th Edition : Mar. 19, 2020-00
5-11