Omega Products DP301AN-AC5 User Manual

3½ DIGIT AC POWER LINE MONITOR

¹⁄8 DIN

DP301AN-AC

DP301AN-AC5 shown

actual size.

U 1,999 Count Display Span
U 50.0 to 199.9 Vac Range (100 mV

Resolution)

U 50 to 650 Vac Range (1V Resolution)
U Bright, 14 mm (0.56") LED Display
U Automatic Zero
U Display Hold and Test
U Screw-Terminal Barrier Strip
U Short 104 mm (4.1") Deep ¹⁄₈ DIN Case

Options

U Isolated 9 to 32 Vdc Power
U Isolated 26 to 56 Vdc Power
U NEMA 4 (IP65) Splash Proof Lens Cover

The DP301AN-AC is a low-cost, compact 3½ digit
panel meter for AC power line monitoring. It uses a
half-wave rectifier calibrated to read the RMS value of
sinusoidal signals.

Two input ranges are jumper-selectable: 50.0 to

199.9 Vac with 100 mV resolution and accuracy
optimized for 115 Vac, and 50 to 650V with 1V
resolution and accuracy optimized for 230 Vac. The
meter fits a standard ¹⁄₈ DIN panel cutout 92 x 45 mm
(3.62 x 1.77") and requires a depth of less than 104 mm
(4.1") behind the panel. A screw-terminal barrier strip
for signal and power is standard.

Mechanical options include a board-edge connector
display TEST, display HOLD, +4.7V and -4.7V outputs
splash-proof lens cover which meets NEMA 4 (IP65)
requirement is available for industrial environments.
Power options isolated 9 to 32 Vdc and 26 to 56 Vdc.

SPECIFICATIONS

Noise Rejection
(AC GND to SIG GND)

CMR: 120 dB, DC to 60 Hz
CMV: 1500 Vp per HV test, 354 Vp per IEC spacing
Accuracy at 25°C (10 to 100% of

Full-Scale Range)
Maximum Error (Reading–Actual): 50.0 to 199.9 V range:

±0.006 (R-115 V) ±0.1 V and 50 to 650 V range: ±0.006
(R-230 V) ±1 V

Span Tempco: ±0.01% of reading/°C
Step Response: 1 s
Warmup to Rated Accuracy: 10 min

Signal Input

Configuration: Half-wave average, RMS-calibrated
Zero: Automatic
Frequency: 49 to 440 Hz

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, 10 mA average sink

Overrange Indication: Three least-significant digits blank

Power

AC Voltages: 115 or 230 Vac ±15%
AC Frequency: 49 to 440 Hz
DC Voltages: 9 to 32 Vdc, isolated to 300 Vp; 26 to 56 Vdc,

isolated to 300 Vp

Power Consumption: 2.4 W (nominal)
Output Voltages: 4.7 Vdc and -4.6 Vdc ±5%, 10 mA max

D-1

INSTRUMENTATION

D

Environmental

Operating Temperature: 0 to 60°C
Storage Temperature: -40 to 85°C
Relative Humidity: 95% at 40°C

(non-condensing)

Analog-to-Digital Conversion

Technique: Dual-slope, average-value
Read Rate: 2.5/s
Integration Period: 100 ms

120.5

Vac

Digital Controls

HOLD and TEST Inputs: TTL or 5 V

CMOS compatible

Mechanical

Bezel: 96 W x 48 H x 5.1 mm D

(3.78 x 1.89 x 0.20")

Depth Behind Bezel: 104 mm (4.09")
Panel Cutout: 92 W x 45 mm H

(3.62 x 1.77")

Weight: 14 oz (400 g)
Case Material: 94V-0 UL-rated

polycarbonate

Signal Input

RANGE

199.9 Vac 100 mV 650 Vac 1 MΩ 1 pA

650 Vac 1V 650 Vac 1 MΩ 1 pA

RESOLUTION

120 V

Variable Transformer

OVERVOLTAGE
PROTECTION

0 to 199.9 V

INPUT
RESISTANCE BIAS CURRENT

Device

under test

To Order Visit omega.com/dp301an-ac for Pricing and Details

MODEL NO. DESCRIPTION

DP301AN

-AC5

-AC6

*

-C1

-C3C

-C3E

NOTE: All combinations may not be valid, check online for valid part numbers.
Ordering Examples: DP301AN-AC5, 3½ digit AC power line monitor with 199.9 Vac input, 115 Vac power, screw terminal barrier strip.

3½ digit AC power line monitor

50 to 199.9 Vac (includes D4 connector)

50 to 650 Vac (includes D4 connector)

(Nothing, leave field blank) 115 Vac, 50/60 Hz power

230 Vac, 50/60 Hz

Isolated 9 to 32 Vdc

Isolated 26 to 56 Vdc

*

(Nothing, leave field blank) red LED display

-G

Green LED display

D-2