YOKOGAWA ZR22S, User Manual

Page: 91 / 206

<5. Wiring>
5-11
IM 11M13A01-02E
5.6.2 Wiring Procedure
(1) M4 screws are used for the terminals of the converter. Each wire in the cable should be
terminated corresponding to crimp-on terminals.
(2) The capacities of the contact output relay are 30V DC 3 A, 250V AC 3 A. Connect a load
(e.g. pilot lamp and annunciator) within these limits.
5.7 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 2). When installing this wiring, proceed as follows:
COMMON SPAN ZERO
to ZR402G terminal "AC-COM"
to ZR402G terminal "AC-SPAN"
to ZR402G terminal "AC-ZERO"
Wiring inlet
2-G1/2, Pg13.5, M20 or 1/2NPT
ZERO
SPAN
COMMON
Span gas solenoid valve
Zero gas solenoid valve
Terminal screw : M4
Use a 3-core cable or equivalent
F05-11E.ai
Figure 5.11 Automatic Calibration Unit
5.7.1 Cable Specifications
Use a 3-core cable for the above wiring.