Omega Products DP2000-O1 User Manual

OHMMETER INDICATOR/CONTROLLER

⁄8 DIN

DP2000-O1 shown

actual size.

DP2000-0 Series

U 1999 or 9999 Count Display Span U Analog Outputs Available U Proportional Control Available

The DP2000/9000-O is a panel mount resistance meter with direct readout in ohms. Resistance ranges are jumper selectable. It is complete with current excitation and open resistance detection. With the addition of analog and control outputs, it can be incorporated as a system component in ATE and closed-loop control applications.

POWER AND DISPLAY OPTIONS

Six types of power supplies are available: 120 Vac, 240 Vac, 24 Vac, 5 Vdc, isolated 9 to 32 Vdc and isolated 26 to 56 Vdc. An LED display is standard, an LCD display is optional and is recommended for viewing in bright ambient light. A NEMA (IP65) 4 splash-proof lens cover is available.

Signal input and power connections are made via a rear barrier terminal strip. The motherboard rear edge connector provides access to hold and test, polarity, clock, and the standard analog output and optional analog outputs. Decimal point positions can be selected by jumpers.

ANALOG OUTPUT OPTIONS

A 1 mV/count (±2 V full-scale) or 0.1 mV/count (±1 V full-scale) analog output is standard and is ideal for driving a strip-chart recorder. An additional analog output can be provided by an optional vertical plugin board. Available output signals are 0 to 5 Vdc, 0 to 10 Vdc, 0 to 1 mA (source or sink) and 4 to 20 mA (source or sink). The top and bottom of each output range can be scaled to ﬁt a user-selected display span.

CONTROL OUTPUT OPTIONS

Additional outputs can be provided by a horizontal upper board. Available options include single-setpoint control with one 10 A relay, dual-setpoint control with two 10 A relays, 4 to 20 mA proportional control (source or sink), time-proportional 2 A solid-state relay control, and isolated, parallel BCD output.

SPECIFICATIONS

Input Conﬁguration

Connection: 2- or 4-wire Zero Adjustment: ±50 counts Overvoltage Protection (Differential): 15 Vp Open-Circuit Voltage (maximum): 12V

Conversion

Input Conﬁguration: Differential, bipolar Technique: Dual slope, average value Polarity: Automatic Signal Integration Period: 100 ms, nominal Reading Rate: 2.5/s, nominal

Accuracy at 25°C

Overall Accuracy: ±0.05% of reading ±1 count Span Tempco: ±0.006% of reading/°C Zero Tempco: ±2.5 m/°C ±0.001% of full scale/°C Warmup to Rated Accuracy:1 min

D-1

INSTRUMENTATION

Display

LED: Red, 14.2 mm (0.56"), 7-segment LCD: 12.7 mm (0.50"), 7-segment

Power

AC Models: 120, 240, or 24 Vac 10%/-15%,

49 to 440 Hz DC Models: 9 to 32 Vdc, isolated to 300 Vp;

26 to 56 Vdc, isolated to 300 Vp; 5 Vdc ±5%, non-isolated

Common Mode

Voltage: 1500 Vp test (354 Vp per IEC spacing) Rejection (DC to 60 Hz): 120 dB

Environmental

Operating Temperature: 0 to 60°C (32 to 140°F) Storage Temperature: -40 to 85°C (-40 to 185°F) Humidity: 95% RH, non-condensing @ 40°C (104°F)

Mechanical

Bezel: 96 W x 48 H x 8 mm D (3.78 x 1.89 x 0.31") Depth Behind Bezel: 139.8 mm (5.50") Panel Cutout: 92 W x 45 mm H (3.62 x 1.77") Weight: 17 oz (480 g) Case Material: 94 V-0 UL-rated polycarbonate

DC CURRENT INPUTS O SERIES

CODE*

O1 O2 O3 O4

Ordering Example: DP2000-O3, LED 120 Vac, 1mV/count, DC current input 0 to 1.999 kΩ.

DP2000 RANGE

19.99 Ω – 10 MΩ 4.2 mA

199.9 Ω – 100 MΩ 4.2 mA

1.999 kΩ 999.9 Ω 1 Ω 420 µA

19.99 kΩ 9.999 kΩ 10 Ω 42 µA

DP9000 RANGE

RES

EXC

CURRENT

To Order Visit omega.com/dp2000-o for Pricing and Details

MODEL NO. DESCRIPTION DP2 DP9

* Refer to chart above for input code options.

Accessory

MODEL NO. DESCRIPTION

DPP-5

Comes complete with operator’s manual. Ordering Example: DP2000-O1, 3½ digit ohmmeter, red LED display, 120 Vac power, 1mV/count, DC current input 0 to 19.99 Ω.

3½-DIGIT FOR ±1999 COUNT 4-DIGIT FOR ±9999 COUNT

0 0 0 -X A. POWER AND DISPLAY

0 1 2 3 4 5 6 7 8

9 A B

DIN panel punch

⁄

1 2 3 4 5 6

0 1 2 3 4 5

(*)

-O

-G

LED; 120 Vac (50/60 Hz) LCD; 120 Vac (50/60 Hz) (DP2000 only) LED; 240 Vac (50/60 Hz) LCD; 240 Vac (50/60 Hz) (DP2000 only) LED; 9 to 32 Vdc, isolated LCD; 9 to 32 Vdc, isolated (DP2000 only) LED; 5 Vdc LCD; 5 Vdc (DP2000 only) LED; 24 Vac LCD; 24 Vac (DP2000 only) LED; 26 to 56 Vdc, isolated LCD; 26 to 56 Vdc, isolated (DP2000 only)

B. ANALOG OUTPUTS

1 mV/count (DP2) or 0.1 mV/count (DP9) (supplied on all units)

0 to 5 Vdc 0 to 10 Vdc 0 to 1 mA (internally driven) 4 to 20 mA (internally driven) 4 to 20 mA (externally driven) 4 to 20 mA (isolated)

C. CONTROL OUTPUTS

None Dual setpoint, 10 A relay (SPDT) Proportional 4 to 20 mA Proportional/time proportioning, 2 A relay Parallel BCD, isolated Single setpoint, 10 A relay (SPDT)

D. SIGNAL CONDITIONER INPUTS

Ohmmeter

ADDITIONAL OPTIONS

Green LED display

D-2

ACC

±0.05%

reading

±1

count