Yokogawa Low Concentration (ppm) Zirconia Oxygen Analyzer OX400 User Manual

Page 52

<6. Operation and Parameters>

6-15

IM 11M10B01-01E

6.5 Switching Measurement Flow Path Using

Multi-Selector

This item is an option, so if you did not specify option “/MS,” this function does not work.
When oxygen concentration at multiple locations is measured, the multi-selector allows switching

of measurement flow path using the relay contact output. Three gas flows can be switched from the

panel.
Specify the flow path No. (“1” through “3”) in the maintenance mode “MLS.” The default in “MLS” is “0.”

For details, see Section 6.1.9, “Setting Multi-Selector “MLS”.” Furthermore, output of measurement

flow path data can be performed by combining two contacts.

MS1

MS2

MS3

MSI1

MSI2

MSICOM

MSCOM

MSI1-MSICOM MSI2-MSICOM

MS OFF

OPEN

MS1 (1st flow)

OPEN

MS2 (2nd flow)

OPEN

MS3 (3rd flow)

Solenoid valve

Contact output for switching of measurement

flow path

1st flow path

2nd flow path

3rd flow path

Power supply

OX400 terminal markings

Contact output to the customer

Output for measurement

flow path data. (Note)

(Note)

The following table shows the relationships of flow

no. contact signals. The flow set in “MLS” closes.

Figure 6.20

Switching Measurement Flow Path Using Multi-Selector

(Example of Three Gas Flows)

When the multi-selector is used, the flow path “MLS1” through “MLS3” under measurement are

displayed on the sub-display on the front panel. If an error or alarm occurs while the multi-selector is

used, the flow path No. and error/alarm are displayed sequentially.