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
† 所有金额以RMB显示
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选项说明:
(1)
Model 选项: DP3520-PA for 4-1/2 digit DC powered strain/microvoltmeter
(2)
Case Mounting 选项: 无（选项为空白） for spring clamp case mounting -UC for U-shaped mounting clamp
(3)
Span Tempco (Temperature Coefficient) 选项: 无（选项为空白） for Standard (±0.005% of reading/°C) span tempco
(4)
Add-On Option 选项: 无（选项为空白） for red LED display -G for Green LED display
