Omega Products DP315 User Manual

3½ DIGIT DC VOLTMETER
¹⁄16 DIN CASE, 5 VDC POWERED

DP315

DP315-2 shown

actual size.

U ±1999 Count Display Span
U ±200 mV to ±200 Vdc Ranges
U True-Differential Input
U 80 dB CMR
U 10 GΩ Input Impedance
U 3-Wire Ratio Input
U Bright, 14 mm (0.56") LED Display
U Automatic Zero and Polarity
U Display Hold and Test
U 5 Vdc Power
U Low-Profile ¹⁄₁₆ DIN Case
U Low Cost

The DP315 is an economical, 5-volt powered,
3½ digit DC voltmeter in a compact ¹⁄₁₆ DIN case. The
height of the panel cutout is only 22 mm (0.88"), and
the depth behind the panel is only 72 mm (2.83").
Low cost, small size and low power consumption at
5 Vdc make the DP315 ideal for OEM and portable­instrument applications.

SPECIFICATIONS

Common-Mode Noise Rejection

CMR: 80 dB, DC to 60 Hz
CMV: -1 to +2 V for (SIG HI + SIG LO)/2

Accuracy at 25°C

Maximum Error: ±0.05% of reading ±1 count
Span Tempco, Standard: ±0.008% of reading/°C
Warmup to Rated Accuracy: 5 s

Analog Input

Configuration: Bipolar true-differential
Zero: Automatic

Display

Type: 7-segment, red LED
Height: 14.2 mm (0.56")
Symbols: -1.8.8.8
Decimal Points: Three positions programmable internally or

at connector

Overrange Indication: Three least-significant digits blank

Digital Inputs

HOLD and TEST inputs: TTL or 5V CMOS compatible

Power

Voltage: 5 Vdc ±5%
Current: 170 to 230 mA
Power Consumption: 1 W (nominal)

Environmental

Operating Temperature: 0 to 55°C
Storage Temperature: -40 to 85°C
Relative Humidity: 95% at 40°C (non-condensing)

Analog-to-Digital Conversion

Technique: Dual-slope, average-value
Polarity: Automatic
Signal Integration Period: 100 ms
Read Rate: 2.5/sec
Full-Scale Step Response: 1.2 s

3-Wire Ratio Reference

Reference Voltage: 0.5 to 3.0V
Load on Reference: 40 kΩ

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: 5 oz (145 g)
Case Material: 94V-0 UL-rated polycarbonate

INSTRUMENTATION

D

D-1

5 : 1 Divider

SIG HI

SIG LO

1.000

+5 Vdc Power

Power Return

REF IN

+1 Vdc Reference

RANGE RESOLUTION MAXIMUM INPUT INPUT RESISTANCE BIAS CURRENT NMR AT 50/60 Hz

±199.9 mV 100 µV 130 Vp 10 GΩ 50 pA 56 dB

±1.999V 1 mV 130 Vp 10 GΩ 50 pA 56 dB

±19.99V 10 mV 150 Vp 1.1 MΩ 5 pA 42 dB

±199.9V 100 mV 330 Vp 1 MΩ 0.5 pA 36 dB

To Order Visit omega.com/dp315 for Pricing and Details

MODEL NO. DESCRIPTION

DP315

-2

-3

-4

-5

*

-UC

*

-DP1

-DP2

-DP3

NOTE: All combinations may not be valid, check online for valid part numbers.
Ordering Examples: DP315-2, 3½ digit DC voltmeter, 5 Vdc power, with ±199.9 mVdc input range.

5 Vdc powered 3

±199.9 mVdc

±1.999 Vdc

±19.99 Vdc

±199.9 Vdc

(Nothing, leave field blank) spring clamp case mounting

U-shaped mounting clamp

(Nothing, leave field blank) programmable at D1 connector

1.999, internally-wired

19.99, internally-wired

199.9, internally-wired

*

(Nothing, leave field blank) red LED display

-G

Green LED display

½

digit DC voltmeter

D-2