Yudian(H.K.)AutomationTechnol o gyCo.Ltd.
Website:http://www.yudian.ushttp://www.yudian.com.hk
Email:sales@yudian.com.hk
Tel:+852‐27708785Fax:+852‐27708796
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FRONT PANEL AND OPERATION:
① Upper display window, displays PV, or code of a
parameter
② Lower display window, displays alarming code or
parameter value
③ Setup key, for accessing parameter tables, and
confirming change.
④ Data shift key
⑤ Data decrease key
⑥ Date increase key
⑦ Indicator lamps: OP1 and OP2 indicate the status of current retransmission. AL1, AL2, AU1and AU2 indicate the
I/O actions of the corresponding modules.
Basal display status : When power on, the upper display window of the instrument shows the process value (PV).
This status is called basal display status. When the input signal is out of the measurable range (for example, the
thermocouple or RTD circuit is break, or input specification sets wrong), the upper display window will alternately
display “orAL” and the high limit or the low limit of PV.
Parameter Setting: In basal display status, press
and hold for about 2 seconds, can access Field Parameter
Table. If the parameter lock “Loc” isn't locked (Loc=0), we can modify the value of parameters by
、 or . .
Press
key to decrease the value, keyto increase the value, and key to move to the digit expected to
modify. Keep pressing
or , the speed of increasing or decreasing value get quick. Pressing can go
to the next parameter. Press
and hold can return to the preceding parameter. Press (don't release) and
then press
simultaneously can escape from the parameter table. The instrument will escape automatically from
the parameter table if no key is pressed within 30 seconds. Setting Loc=808 and then press can access System
Parameter Table.
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