Trident Model PD765 Universal Input Meter Instruction Manual
53
Offset Adjustment (
Adj
)
This parameter allows the user to select an offset adjustment to the
temperature being displayed. Offset adjustment values can be either
positive or negative and can be any number within
±
19.9
°
. The offset
adjustment value is programmed through the
Adjust
menu.
The offset adjustment feature can be useful to compensate for errors
due to thermocouple junctions or excessive lead wire resistance in
RTDs.
The offset adjustment value is automatically reset to zero whenever the
type of temperature sensor is changed (
i.e.
Thermocouple type or RTD
curve).
Celsius/Fahrenheit conversion of the offset adjustment value is auto-
matic, see note 2 below for important limitations.
Notes:
1. Offset adjustment is available only when TC or RTD input is se-
lected.
2. If adjustment value is greater than 11
°
C and the temperature
scale is changed to Fahrenheit, the maximum applied adjust-
ment will be 19.9
°
F.
Noise Filter (
fltr
)
Most applications do not require changing this parameter. It is intended
to help attain a steady display with an unsteady (noisy) input signal.
The field selectable noise filter averages any minor or quick changes in
the input signal and displays the reading with greater stability.
Increasing the filter value will help stabilize the display, however this will
reduce the display response to changes on the input signal.
The filter level may be set anywhere from 2 to 199.
Setting filter value to zero disables filter function, and bypass setting be-
comes irrelevant.
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