Precision Digital PD6100 - Manual (Page 21)

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual
21
Range (Switch 2)
The range switch adjusts the gain of the internal circuitry. Narrower
ranges require more amplification.
Switch
2
ON Range
Higher internal
gain
Turn this switch ON for the
following input ranges: 15,
30, ±15, or ±25 mV.
OFF Range
Lower internal
gain
Turn this switch OFF for the
following input ranges: 150,
300, ±150, or ±250 mV.
Polarity (Switch 3)
The polarity switch selects whether the range is unipolar and starts at
zero (i.e. 0 to 30 mV) or bipolar and starts at a negative value, or below
zero (i.e. -15 to +15 mV).
Switch
3
ON Polarity
Range starts at
zero (unipolar)
Turn this switch ON for the
following input ranges: 15,
30, 150, or 300.
OFF Polarity
Range starts
below zero
(bipolar) Turn this switch OFF for
the following input ranges:
±15, ±25, ±150, or ±250 mV.
Source (Switch 4)
The source switch tells the ProVu whether the input is a strain gauge
bridge (i.e. Figure 11), or it is a signal from a 2 or 4 wire transducer, or
mV source (i.e. Figure 12)
Switch
4
ON Source
Source is mV
input transducer
Turn this switch ON if the
connected source is a
transducer*
OFF Source
Source is strain
gauge bridge
Turn this switch OFF if the
source is a strain gauge
bridge
*Ratio should be set to NO in Setup Input Menu