Tempco TEC-2500, Инструкция по эксплуатации

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4–11 Sleep Mode
To enter sleep mode:
Set FUNC for FULL to provide full function.
Select YES for SLEP to enable sleep mode.
Press for 3 seconds; the unit will now enter sleep mode.
During sleep mode:
1. All displays are shut off except a decimal point which is lit periodically.
2. All outputs and alarms are shut off.
To exit sleep mode:
1. Press to leave the sleep mode.
2. Disconnect the power.
The sleep function can be used in place of a power switch to reduce the system cost.
Default: SLEP=NONE, sleep mode is disabled.
Note: If sleep mode is not required by your system, NONE should be selected for
SLEP to disable sleep mode.
Sleep mode features:
Shut off display
Shut off outputs
Green power
Replaces power switch
Setup menu
FUNC=FULL
SLEP=YES
4–10 Digital Filter
In certain applications the process value is too unstable to be read. A programmable
low-pass filter incorporated in the TEC-2500 can be used to improve this. This is a
first order filter with the time constant specified by the FILT parameter in the setup
menu. The default value of FILT is set at 0.5 seconds. Adjust FILT to change the time
constant from 0 to 60 seconds. 0 seconds means no filter is applied to the input
signal. The filter is characterized by the following diagram.
Note
The filter is available only for PV1, and is performed for the displayed value only. The
controller is designed to use unfiltered signal for control even if the filter is applied. A
lagged (filtered) signal, if used for control, may produce an unstable process.
Menu
FILT
Filter is used to stabilize the
process display.