Maintenance, 1 loop test (test output), 1 settings for test output using data setting keys – Yokogawa ADMAG CA User Manual

Page 71: Maintenance -1, Loop test (test output) -1, Important

IM 1E8B0-01E

9-1

9. MAINTENANCE

9.1 Loop Test (Test output)

This function enables you to set up any desired value, and to output it from the con-
verter. Since this output is also shared with the totalization display and pulse output,
this makes it possible to check operation of individual functions.

The test function of contact output (Alarm) is also provided.

Test output is prior to flow signal. Do not forget to return to the normal
operation mode after the loop test.

9.1.1 Settings for Test Output Using Data Setting Keys

(1) Current Output (Corresponding to Flow Rate, Pulse and Totalization Display)

Display

Description

Call up the setting mode and display "H1" ( test mode ) and set "01"

Code

Content

Normal operation

Test output

Setting range : –8 to 108%

Display "H2" and the value to be output in % of maximum span. ( The figure
shows a 100% setting. )

These functions must be returned to their original status during flow rate measurements.

(2) Contact Output (Alarm Output)

Display

Decription

Call up the setting mode and display "H1" (test mode ) and set "01".

Select the mode of status to be output in "H3".

Code

Content

Normal operation

Test output

Code

Content

Normal operation

Transistor contact (ON)

Transistor contact (OFF)

These functions must be returned to their original status during flow rate measurements.

IMPORTANT