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4 3/4 Digit DC Voltmeter with BCD Output
2004

4 3/4 Digit DC Voltmeter with BCD Output
Parallel BCD output
±39,999-count display span
±400 mV to ±400 V dc ranges
±10 ppm/°C span tempco (4 V range)
3-wire ratio input
120 dB CMR, 75 dB NMR
Bright, 0.56 in (14.2 mm) LED display
Automatic zero and polarity
115/230 V ac power
1/8 DIN case

OPTIONS
±49,999-count display span
±59,999-count display span
±69,999-count display span
High-impedance 3-wire ratio input
Isolated, stored, three-state parallel BCD
Digital setpoint controller
Digital peak or valley hold
5 V dc power
Screw-terminal barrier strip
NEMA-4 splash-proof lens cover
NEMA-size case






In its base configuration, Model 2004 is a 4 3/4 digit DC voltmeter which provides exceptionally high resolution, accuracy, and temperature stability. The standard display range is ±39,999 counts. Extended-range options are available to ±49,999, ±59,999 or ±69,999 counts. Accuracy is 99.99% of reading. Span tempco is ±10 to ±20 ppm of reading/°C, made possible by precision wirewound resistors. The 2004 also features exceptional noise rejection. Its conversion circuit uses a crystal oscillator, which is tuned for either 50 or 60 Hz rejection.

BCD OUTPUT STANDARD
Unbuffered, non-isolated parallel BCD output is a standard feature of the 2004 and is implemented on the main circuit board. It is good for about 1 ft and can be used to interface the 2004 to a Model 872A comparator or a Model 820A printer. Additional data and control outputs can be provided by an optional upper-board.


OPTIONS
The meter main assembly can be electrically configured for four input ranges, four display spans, three round-off modes for display stability, and high-impedance 3-wire ratio input. Upper-board options include four BCD output boards and a single-setpoint controller. Mechanical options for the standard 1/8 DIN case include a screw-terminal barrier strip for signal and power and a splash-proof lens cover which meets NEMA-4 requirements. A NEMA-size case is optional.

LA1 (Ultra-Low)
Load-Cell Conditioner Upper Board

LP1 (Ultra-Low)

Load-Cell Peak-Hold Upper Board

OPTION F3A
Non-Isolated Parallel BCD Upper Board, Three-State with 1-Bit Enable

OPTION F3P
Peak/Valley Detector Upper Board with BCD Output

OPTION F4A
Isolated Parallel BCD Upper Board, Three-State with 1-Bit Enable

OPTION F4M
Isolated, Parallel BCD Upper Board Three-State with 4-Bit Address

OPTION 06
Digital-Setpoint Upper Board


OPTION SPC4
1/8 DIN NEMA-4 Splash-Proof Lens Cover


SPECIFICATIONS

ANALOG INPUT
Standard Range
±399.99 mV
±3.9999 V
±39.999 V
±399.99 V
Resolution
10 µV
100 µV
1 mV
10 mV
Maximum Input
100 Vp
100 Vp
250 Vp
250 Vp
Input Resistance
1 Gohm
1 Gohm
1.1 Mohm
1.0 Mohm
Bias Current
2 nA
2 nA
200 pA
20 pA
Span tempco/°C
±15 ppm
±10 ppm
±20 ppm
±20 ppm

Configuration: Bipolar, single-ended
Zero: Automatic
Span adjustment: ±1.2%

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

ACCURACY AT 25°C

Maximum error: ±0.005% of reading ±2 counts ±10 µV
Span tempco: ±10 to ±20 ppm/°C
Step Response: 1 s
Warmup to rated accuracy: 1 hour

ANALOG-TO-DIGITAL CONVERSION
Technique: Dual-slope, average-value
Polarity: Automatic
Signal integration period:
33 ms at 60 Hz, 40 ms at 50 Hz
Read rate: 3.3/s at 60 Hz, 2.8/s at 50 Hz

3-WIRE RATIO REFERENCE
Analog input range
±400 mV
±4, ±40, ±400 V
Reference Voltage
+0.1 to +0.4 V
+1.0 to +4.0 V
Load on reference, std
260 ohm
2.6 kohm
Load on reference, opt
1 Gohm
1 Gohm
Accuracy
99.95%
99.95%

DISPLAY

Type: 7-segment, red LED
Height: 0.56 in (14.2 mm)
Symbols: ­8.8.8.8.8
Decimal points: Four positions programmable internally or at connector
Overrange indication: Display flashes

DIGITAL SIGNALS
Output signals: TTL-compatible
Input signals: TTL or 5 V CMOS compatible


POWER
AC voltages:
115 V ac ±10% at 60 Hz; 230 V ac ±10% at 50 Hz
DC voltage: 5 V dc ±5%
Power consumption: 4.5 W (nominal)

ENVIRONMENTAL
Operating temperature:
0 to 50°C
Storage temperature: ­40 to 75°C
Relative humidity: 95% at 40°C (non-condensing)

MECHANICAL
Dimensions: Newport DIN1A (1/8 DIN) case standard, Newport NEMA-size case optional (see Mechanical section for drawings)
Weight: 17 oz (480 g)
Case material: 94V-0 UL-rated polycarbonate



Product Selection (Specify Model Number, see variations below in partnumber builder table)
 Part Number   Availability   Price    Description   
 2004-2 in-stock    $510.00     Voltmeter with ± 399.99 mVdc input signal  
 2004-3 in-stock    $500.00     Voltmeter with ± 3.9999 Vdc input signal  
 2004-4 in-stock    $510.00     Voltmeter with ± 39.999 Vdc input signal  
 2004-5 in-stock    $510.00     Voltmeter with ± 399.99 Vdc input signal  
 
All dollar amounts on this site are shown in US currency.

 Part Number Builder
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
2
2
0
0
0
0
4
4
Option Descriptions
(1) INPUT SIGNAL
  Select
-AVG for AC voltage (includes D4)
-RMS for True RMS voltage (includes D4)
-LA1 for Gain-programmable preamplifier with active filter and bridge-excitation supply
-LP1 for Gain-programmable preamplifier with peak-hold and bridge-excitation supply - DC Input Signals
-2 for ± 399.99 mVdc
-3 for ± 3.9999 Vdc
-4 for ± 39.999 Vdc
-5 for ± 399.99 Vdc
(2) DC INPUT SIGNALS (Not applicable for LA1, LP1, or FS Input Signals)
  Select
Nothing(leave field blank) for Not applicable
,VR2 for 399.99 mVac or rms
,VR3 for 3.9999 Vac or rms
,VR4 for 39.999 Vac or rms
,VR5 for 399.99 Vac or rms
,CR2 for 399.99 µA ac or rms
,CR3 for 3.9999 mAac or rms
,CR4 for 39.999 mAac or rms
,CR5 for 399.99 mAac or rms
,CR6 for 3.9999 A ac or rms
,CR7 for Current transformer (CT) scaling for 5 A ac or rms
(3) EXTENDED RANGE OPTIONS
  Select
Nothing(leave field blank) for None, ±39,999 counts (standard)
,ER1 for ±49,999 counts (DC or FS signal only)
,ER2 for ±59,999 counts (mutually exclusive with FS option)
,ER3 for ±69,999 counts (mutually exclusive with FS option)
(4) LEAST-SIGNIFICANT-DIGIT ROUND-OFF
  Select
Nothing(leave field blank) for Displays 0,1,2,3,4,5,6,7,8,9
,CB2 for Displays 0,2,4,6,8
,CB5 for Displays 0,5
(5) 3-WIRE RATIO DC INPUT IMPEDANCE
  Select
Nothing(leave field blank) for Standard
,HZ for High impedance (1 G ohm reference input only)
(6) UPPER-BOARD OUTPUT OPTIONS - Mutually exclusive with LA1 and LP1 - *Includes PCB edge card connectors
  Select
Nothing(leave field blank) for None (unbuffered, non-isolated BCD is standard)*
,F3A for Buffered, gated and stored BCD output*
,F3P for Stored peak or valley BCD output*
,F4A for Buffered, isolated, gated and stored BCD output*
,F4M for F4A with 4-line binary addressing*
,06 for Single-setpoint controller with TTL and 1A relay outputs (requires option D4)*
(7) POWER
  Select
Nothing(leave field blank) for 120 Vac (optimized for 60 Hz rejection)
,C1 for 240 Vac (optimized for 50 Hz rejection)
,C3 for 5 Vdc (optimized for 60 Hz rejection**
,C4 for 5 Vdc (optimized for 50 Hz rejection)**
(8) ADD-ON OPTIONS
  Select
Nothing(leave field blank) for No Options
,FS1 for Custom calibration for 2004-AVG-CR7 or 2004-RMS-CR7
(9) ADD-ON OPTIONS
  Select
Nothing(leave field blank) for No Options
,D4 for Screw-terminal barrier strip for power and signal. Removes power and signal from D1
(10) ADD-ON OPTIONS
  Select
Nothing(leave field blank) for No Options
,BL for Lens without Newport logo
 NOTE: All combinations may not be valid, check spec sheet for valid part numbers.


   
Keywords: 4 3/4 Digit DC Voltmeter with BCD Output

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