Union Instruments CWD3000 EXP, Operating Instructions Manual

Page: 79 / 120

Operation
79
Main menu - Options - System - General
The “Change signals after holding” command causes a smooth transition after
calibration or removal of the signal holding state. A sudden rise or fall of the
measured value in the analog output signal is avoided. The continuous transition
is specified in seconds.
General system values are configured in this menu.
The following must be observed here:
Change signals after holding:
When the Hold signals (mA) function is ended, an adjustment of the old and new
measured values is made over a time ramp.
Flushing time after cooling air or device start:
Specifies the length of time after the device start that the solenoid valve is open
until ignition starts.
Screen switch-off time:
Specifies the time after which the screen will be switched off if no input is made.
Display rate:
Refers to a time constant for various burners. It is preset by the manufacturer and
dependent on the burner type.
Carrier gas test cycles:
The time intervals for carrier gas calibrations, in hours, is defined.