User Manual

4 Commissioning the instrument
17
Lead compensation resistance This value is used to compensate the resistance of the probe lead for resi- tance sensors and is dependent on the lead length. For best temperature measurement results, the resistance value of the probe lead has to be entered here.
0.0 ... 0.0 ... 99.9
Ω
Unit for the process value displayed
°C, °F or no (= no unit)
Filter time constant for adapting the digital input filter. At a signal step, 63% of the changes are registered after the filter time con- stant has elapsed. Values between 0.1 and 0.7 are interpreted as 0.8 (sampling time). If the filter time constant is long: - high damping of interference signals - slow reaction of the process value display to process value changes
0.1 ... 0.8 ... 99.9 s
Parameter Meaning
Value range from...factory-set...to
A
If the total resistance at the measurement input (sensor resistance + selected value for OF.r) exceeds 320
Ω with Pt100 or 3200 Ω with
Pt1000/KTY2x-6, a measurement error will occur !
A
For settings in °F, the process value will be converted correspond- ingly. All other settings, such as for SP, will retain their values.
H
Return to the first parameter SP of the parameter level with > 3 seconds.