WIKA CF1M - Manual (Page 22)

Operating Instructions Temperature Indicating Controller CF1M
V1. 1
•
03/200 5 - 22 -
<Key operation>
Phenomenon Presumed cause and the action
If it is impossible to set.
If the value does
not change by the
, keys.
• Setting value lock (mode 1 or 2) is designated.
Release the lock designation.
• During PID auto-tuning or auto-reset.
In the case of PID auto-tuning, cancel the tuning if necessary.
In the case of Auto-reset, it takes approx. 4 minutes
until the auto-reset is completed.
If the setting
indication does not
change in the rated
scale range even if
the , keys
are pressed, and
setting is impossible.
• Main setting value high limit or low limit may be set at the point
the value does not change.
Set it again by Auxiliary function setting mode 1.
<Control>
Phenomenon Presumed cause and the action
If process variable
(temperature) does
not rise.
• Thermocouple or RTD is burnt out.
• Lead wire of thermocouple or RTD is not securely mounted to the
instrument terminal.
• confirm the connection of the output is securely carried out.
If the main output
remains ON status. • Main output low limit setting value is set to 100% or greater
in Auxiliary function setting mode 2.
Set the value properly.
If the main output
remains OFF status. • Main output high limit setting value is set to 0% or less
in Auxiliary function setting mode 2.
Set the value properly.
If any unexplained malfunctions occur other than the above mentioned, make inquiries at our agency
or the shop where you purchased the unit.