Precision Digital PD6830 - Manual (Page 71)

PD6830 Pulse Input Rate/Totalizer Instruction Manual
71
Error Message (Error)
An error message indicates that the calibration or scaling process was not successful.
After the error message is displayed, the meter reverts to input 2 during calibration or
scaling, allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected backwards.
2. Minimum input span requirements not maintained.
3. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum allowed input span is 1 Hz, which is the minimum difference between input
1 and input 2 signals required to complete the calibration or scaling of the meter.
Multi-Point Linearization (nopts)
Up to 32 linearization points can be selected under the nopts function. The multi-
point linearization can be used to linearize the display for non-linear inputs.
Linearization data can be entered using a known accurate signal source (InP 1-32)
and then entering the desired/corresponding meter reading (dSP 1-32) for that input
signal level. These points are established via direct entry (SCALE) or with an external
calibration signal (CAL).
Calibration Units (CAL UNITS)
Enter the units associated with the desired scale values. Selecting this unit allows the
meter to perform automatic unit conversions.
Pulse Input Time Unit (Time UNIT)
This is the time component to be used when calibrating a number of input pulses per
time unit to equal a certain display value.
For example, if the inputs being entered in pulses/second the time unit would be set
to seconds.
Total Reset (T Reset)
This menu is used to select the ways the total and grand total may be reset.