MODEL 3760
D C VO L T & 4-2 0 mA PA N E L ME TE R
Tech Tip on use of wide range settings for the DC Voltage Conditioner
Due to multiple amplifier stages within the 3760 instrument, attention to the proper gain setting and understanding of
the sensor inputs should be reviewed to produce a linear- amplified analog output signal and display reading.
The wide span – gain control (as shown in the front panel diagram) has 16 positions to amplify the incoming signal by
incremental steps. Each step is positioned so the Coarse and Fine Span potentiometer controls overlaps each step to
provide a continuous linear gain of the signal from 50 mVdc to 200Vdc full scale. Below is a table of each wide gain
steps, indicating the nominal low and high input signal range per position – full scale in millivolts DC to the meter.
Wide Span
Control
Wide Span Control table for Low and High Input DC Voltage adjustment per Front panel Range selection
0.05 - 0.400
Range
1
0.40 - 3.20
Range
2
3.20 - 25.0
Range
3
25.0 - 200.0
Range
4
Front Panel Range Switch Settings (refer to page 9)
1– VDC OUT
2 – mA OUT
3 – FILTER
4 – FILTER
5 – mA IN
5
4-20
20 Hz
20 Hz
4-20
10
4-12-20
200 Hz
2 Hz
4-12-20
Up
Function
Down
RANGE
VDC INPUT
6 7
0.05 – 0.40
0
.40 – 3.20
3.20 – 25.0
25.0 – 200.0
1
2
3
4
Page
1
6
