Model 2002A-E/2002B-E/3002-E - 4 1/2 Digit Process Receiver

4 1/2 DIGIT PROCESS METER WITH TRANSMITTER EXCITATION
MODEL 2002A-E / 2002B-E / 3002-E

1/8 DIN (2A) Case

Connections Diagram

STANDARD FEATURES
10-24 V isolated transmitter excitation
Span range from 0 to 19,999 counts
Zero range from -19,999 to +19,999 counts
120 dB CMR, 70 dB NMR
Bright, 0.56 in (14.2 mm) LED display
Display hold and test
115/230 Vac power
EMI/RFI filter for AC power
Screw-terminal barrier strip
Short (4.1 in, 104 mm deep) 1/8 DIN case

OPTIONS
Isolated 9-32 Vdc or 26-56 Vdc power
NEMA-4 splash-proof lens cover

BUILT-IN TRANSMITTER EXCITATION SUPPLY
Model 2002A-E is a high-resolution digital process monitor which incorporates an electrically-floating supply for powering transmitters, active transducers and bridges. In many cases, this built-in supply can eliminate the need for a more expensive external supply. The output voltage is adjustable from 10 to 24 V dc. Maximum output current is 50 mA at any voltage setting.

HIGH-RESOLUTION PROCESS MONITOR
Except for the excitation supply, the 2002A-E is identical to the 2002A-P, a low-cost 4 1/2 digit (+19,999-count) process monitor for indication-only applications. It provides extensive zero and span adjustments to measure signals such as 4-20 mA, 1-5 V and 0-10 V in engineering units. Scaling and calibration are easily accomplished in the field by multiturn potentiometers accessible behind the lens. Accuracy is up to 99.98% of reading.

COMPACT CASE
The 2002A-E is housed in a 1/8 DIN case that requires less than 4.1 in (104 mm) behind the panel. A screw-terminal barrier strip for signal and power is standard.

SPECIFICATIONS

ANALOG INPUT

Signal Range	4-20 mA	1-5 V	0-10 V
Resolution	0.8 µA	0.2 mV	0.5 mV
Input resistance	130 ohm	1 Mohm	1 Mohm
Bias current	50 pA	10 pA	5 pA
Maximum input	55 mA	250 V	250 V

Span range: 0 to 19,999 counts
Zero range: 19,999 to +19,999 counts

REFERENCE
Internal (standard): 1.0 V ±5%, 12 kohm source resistance
External (ratiometric): 0.5 to 2.0 V, 680 kohm input resistance

ACCURACY AT 25°C

REFERENCE	INTERNAL	EXTERNAL
Maximum error	±0.01% of span	±0.01% of span
	±2 counts	±2 counts
Zero tempco	±0.5 counts/°C	±1 count/°C
Span tempco	±0.01% of span/°C	±0.005% of span/°C

Full-scale step response: 1.0 s
Warmup to rated accuracy: 10 min

NOISE REJECTION
NMR, SIG HI to SIG LO: 70 dB, 50/60 Hz
CMR, SIG GND to PWR GND: 120 dB, DC to 60 Hz
CMV, SIG GND to PWR GND: 1500 Vp per HV test, 354 Vp per IEC spacing

ANALOG-TO-DIGITAL CONVERSION
Technique: Dual-slope, average value
Signal integration period: 100 ms
Read rate: 2.5/s

TRANSMITTER EXCITATION SUPPLY
Output voltage: adjustable from 10 or 24V dc
Output current: 50 mA max
Line regulation: ±0.01% typ, ±0.04% max for 10% change of AC power voltage
Load regulation: ±0.15% typ, ±0.5% from zero to max load
Tempco: ±0.02%/°C
Ripple at 50/60 Hz: 0.01%

DISPLAY
Type: 7-segment, red LED
Height: 0.56 in (14.2 mm)
Symbols: 1.8.8.8.8
Decimal points: Four positions, programmable by jumpers behind lens or at connector, 10 mA sink to DIG GND
Overrange indication: Four least-significant digits flash

DIGITAL INPUTS
Siganls: Display hold, blanking, display test, decimal point select
Level: TTL or 5 V CMOS compatible

POWER
AC voltages: 115 or 230 V ac, ±15%
AC frequency: 49 to 440 Hz
DC voltages: 9-32 V dc, isolated to 300 Vp; 26-56 V dc, isolated to 300 Vp
Power consumption: 4.0 W
Output voltages: +4.7 V dc and 4.7 V dc ±5%, 10 mA max

ENVIRONMENTAL
Operating temperature: 0 to 60°C
Storage temperature: 40 to +85°C
Relative humidity: 95% at 40°C (non-condensing)

MECHANICAL
Dimensions: Newport DIN2A (short 1/8 DIN) case (see Mechanical section for drawings)
Weight: 15 oz (425 g)
Case material: 94V-0 UL-rated polycarbonate
Connectors - Power & signal: D4 screw-terminal barrier strip (std)
Display control: D1 36-pin PCB edge connector (opt)

Model 2002A-E w/electrically-floating excitation supply & process signal conditioner, configured for operation with a 2-wire 4-20 mA transmitter (powered by 4-20 mA loop). Excitation return is tied to signal low.

2002A-E w/electrically-floating excitation supply & process signal conditioner

2002A-E w/electrically-floating excitation supply & process signal conditioner