Yokogawa IR400 - Manual (Page 29)

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IM 11G02N01-01E
Connector <CN3>
Connector <CN3> provides outputs in combination with calibration action during auto calibration
and manual calibration.
An output is from a transistor (ratings: 5 V/50 mA).
A transistor is turned ON before starting each calibration.
Sample selection output is ON during measurement and OFF during calibration.
If calibration is not performed, the other transistors are OFF.
In case of auto calibration, sequential output is ON/OFF according to the setting.
Refer to “Item 6.4 Setting of auto calibration”.
Note) No. 9 pin is for solenoid valve ON/OFF relay drive power (5 V DC/0.5 A, max).
Use No. 9 with reference to the diagram.
Connector
<CN3>
(Transister output)
<D-sub 9P>
Contact output for
zero calibration
Contact output for
sample gas selection
Contact output for Ch1
span calibration
Contact output for Ch2
span calibration
Contact output for Ch3
span calibration
Contact output for Ch4
span calibration
Contact output for Ch5
span calibration
Power for relay drive
5V DC
1
2
3
4
5
6
7
8
9
Solenoid valve drive signal output for calibration
Cable
I/O terminal module Relay board
Contact relay
CN3
5V
SV1 to SV4: solenoid valves
Solenoid valve
drive power
SV1
SV2
SV3
SV4
1
3
4
5
9
Standard gas for calibration
<Gas sampling system>
Refer to Item 3.4.7 Example configuration
of gas sampling system .
<Electrical system>
Example of using solenoid valve drive signal output for calibration
Relay board and exclusive cable (D-sub 9p straight cable: 1.5 meters)
are available on request.
SV4
Ch2
span
SV3
Ch1
span
SV2 SV1
Zero
Membrane filter
Electronic
gas cooler
Flowmeter