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4-1/2 Digit DC-Powered
Srain/Microvoltmeter - Discontinued |
| DP3520-PA |
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4-1/2 Digit DC-Powered
Srain/Microvoltmeter
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±19,999 Count Display Span
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True-Differential Input
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3-Wire Ratio Measurement
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Serial BCD Output
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Bright, 14 mm (0.56") LED Display
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Automatic Zero and Polarity
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Display Hold and Test
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5 Vdc Power
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Low-Profile 1/16 DIN Case
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From Sep 1st 2018, DP3520-PA Series will be discontinued. As a possible substitute, please check out the DPPt Meter for details.
The DP3520-PA is an economical 5-volt powered,
high-resolution, high-accuracy 4-1/2 digit dc
microvoltmeter in a compact 1/16 DIN case. The height
of the panel cutout is 22 mm (0.88"), and the depth
required behind the panel is only 72 mm (2.83").
Low cost, small size, low power consumption at
5 Vdc and exceptional power-supply noise rejection
make the DP3520-PA ideal for demanding OEM and
portable-instrument applications.
MICROVOLT PREAMPLIFIER
The DP3520-PA incorporates a preamplifier, which
can be programmed for resolution from 1 to 25 µV/
count and for a zero offset up to ±0.6 mV (RTI) ±21%
of full-scale readout (RTO).
The DP3520-PA can be configured for use with load
cells and pressure gauges, which require zero and
span adjustment for readout in engineering units.
Bridge excitation may be provided by the same
5 Vdc supply that powers the meter, or by an external,
isolated 10 or 15 Vdc power supply.
The DP3520-PA can also be configured as a
microvoltmeter using an internal reference, or in a
ratiometric mode using an external reference.
SERIAL BCD
Non-isolated, character-serial BCD output is standard
to allow the DP3520-PA to be interfaced to other
instrumentation.
Model DP3520-PA provides a differential
programmable preamplifier for use with low-level
bridge circuits. Bridge excitation can be provided by
the same 5 Vdc power supply that powers the meter.
SPECIFICATIONS
Noise Rejection
NMR, SIG HI to SIG LO: 60 dB, 50/60 Hz
CMR, SIG GND to SIG LO: 86 dB, DC to 60 Hz
CMV, SIG GND to SIG LO: -1 to 2.5 Vdc
Power Supply Rejection: 86 dB at 50/60 Hz
Conversion
Technique: Dual-slope, average-value
Signal Integration Period: 100 msec
Read Rate: 2.5/sec
Analog Input
Input Configuration: Differential, ratiometric
Coarse-Span Adjustment: Jumper-selectable gain ranges
Fine-Span Adjustment: Front-panel accessible precision potentiometer
Zero Adjustment (RTI or Deadload): ±0.6 mV
Zero Adjustment (RTO or Tare): ±20.9% of full-scale display
Bias Current: 10 nA typ, 20 nA max
Accuracy At 25°C Error
Max: ±0.01% of reading ±2 counts
Span Tempco, Typ: ±0.003% of reading/°C
Zero Tempco, Typ: ±0.3 µV/°C
Step Response: 2 sec to 99.9% of span
Warmup to Rated Accuracy: 30 min
Digital Signals
Output Signals: TTL-compatible
HOLD Input: TTL or 5V CMOS compatible
BLANKING Input: Open-collector compatible
Power
Voltage: 5 to 5.25 Vdc
Current: 170 to 230 mA
Power Consumption: 1 W (nominal)
Environmental
Operating Temperature: 0 to 55°C (32 to 122°F)
Storage Temperature: -40 to 85°C (-40 to 184°F)
Relative Humidity: 95% at 40°C (104°F) (non-condensing)
Mechanical
Dimensions: 24 H x 96 W x 72 mm D (0.94 x 3.77 x 2.82")
Panel Cutout: 22.2 x 92 mm (0.874 x 3.622")
Weight: 145 g (5 oz)
Case Material: 94 V-0 UL-rated polycarbonate
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† Price are shown in RMB.
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Part Number Builder |
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Option Descriptions
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(1)
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Model
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Select
DP3520-PA for 4-1/2 digit DC powered strain/microvoltmeter
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(2)
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Case Mounting
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Select
Nothing(leave field blank) for spring clamp case mounting
-UC for U-shaped mounting clamp
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(3)
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Span Tempco (Temperature Coefficient)
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Select
Nothing(leave field blank) for Standard (±0.005% of reading/°C) span tempco
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(4)
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Add-On Option
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Select
Nothing(leave field blank) for red LED display
-G for Green LED display
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NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
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Keywords:4-1/2 Digit DC-Powered
Srain/Microvoltmeter
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