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Used
as a direct-reading DC voltmeter, this Digital
Panel Meter (DPM) model provides a full-scale readout of ±20,000
counts (selectable fixed zero or active least significant digit) and five
full-scale voltage ranges/resolutions (see Specifications).
Accuracy is 99.99% of full scale ± 1 count. To minimize the load
on the voltage signal, a high input impedance is provided (up to 1
GΩ for the 200.00-mV and 2.000-V ranges). The maximum voltage which can be applied on the 20, 200, and
660 V-DC range is 660 V-AC.
The
model-numbering system is given in the Specifications
table, below.
The
meter can be used with external current shunts (as shown in the
figure), which typically produce 50 mV or 100 mV at their rated maximum
current. Scaling from
millivolts to amperes for a specific shunt is easily accomplished from the
front panel of the meter. The
scalable readout is five full digits up to ±99,999 counts.
Since the voltage signal from a current shunt can be noisy, the
meter provides a selectable, adaptive moving average digital filter
(see Digital Panel Meters (DPM’s).

All
voltage ranges are calibrated at the factory, with calibration factors for
each range stored in internal EEPROM.
This allows ranges to be changed in the field without having to
recalibrate the meter.
As
with all 2000 Series DPM’s, the peak value of the input signal is
automatically captured and may be displayed
via front-panel push button or a control signal received at the rear
connector (since the last meter reset). Data readings and outputs can be separately selected to be
either filtered or unfiltered.
See Digital Panel Meters (DPM’s)
for a full description of these and other standard DPM features.
2000
Series options applying to the DC voltage meter include
DC
Voltage Meter Specifications [Top
]
(Click
here for 2000 Series General Specifications)
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Model
Number
|
DC
Voltage
Range
|
Resolution
|
Input
Ohms
|
Error
± 1 Count
|
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2160-002
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200.00 mV
|
10 μV
|
1 GΩ
|
0.01 % full scale
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2160-2
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2.0000 V
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100 μV
|
1 GΩ
|
0.01 % full scale
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2160-20
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20.000 V
|
1 mV
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1 MΩ
|
0.01 % full scale
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2160-200
|
200.00 V
|
10 mV
|
1 MΩ
|
0.01 % full scale
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2160-660
|
660.0 V
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100 mV
|
1 MΩ
|
0.03 % full scale
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All DC
Voltage Models
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Span
Temperature Coefficient |
±0.003% of
reading/°C |
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Zero
Temperature Coefficient |
0.1 count/°C |
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Normal-Mode
Rejection at 50/60 Hz |
90 dB with minimum
digital filtering |
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Common-Mode
Rejection from DC to 60 Hz |
130 dB |
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Maximum
Applied Voltage |
660 VAC for 20,
200, and 660 V ranges; 126 VAC for other ranges |
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