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4 1/2 Digit DC Voltmeter
2001A

Digit DC Voltmeter
±19,999-Count Display Span
±2 V to ±200 V dc Ranges
True-Differential Input
120 dB CMR, 56 dB NMR
1 pA Typical Bias Current
3-Wire Ratio Measurement
Bright, 0.56 in (14.2 mm) LED Display
Automatic Zero and Polarity
Display Hold and Test
115/230 V ac Power
Short (104 mm deep) 1/8 DIN Case

OPTIONS
Isolated 9-32 V dc Power
Isolated 26-56 V dc Power
Screw-Terminal Barrier Strip
NEMA-4 Splash-Proof Lens Cover


1 Year Warranty Electromagnetic Compatibility

Scroll Below to Order Specs Quickstarts Manuals Mechanical Mechanical

Model 2001A is a low-cost, true-differential 4 1/2 digit panel meter for applications that require high resolution and high accuracy DC measurement. It fits a standard 1/8 DIN panel cutout and requires a depth of less than 4.1 in (104 mm) behind the panel. Display span is ±19,999 counts. Accuracy is 99.98%.

Input Ranges
The 2001A offers DC voltage ranges of ±1.9999, ±19.999 and ±199.99 V dc. By using an external DC voltage reference, any of these ranges can be configured for 3-wire ratio measurement.

Options
The meter can be electrically configured for three input voltage ranges, four decimal-point positions, high-impedance 3-wire ratio input. Mechanical options include a screw-terminal barrier strip for signal and power and a splash-proof lens cover which meets NEMA-4 requirements.


SPECIFICATIONS

ANALOG INPUT
Range
±1.9999 V
±19.999 V
±199.99 V
Resolution
100 µV
1 mV
10 mV
Maximum Input
130 Vp
250 Vp
250 Vp
Input Resistance
1 Gohm
1 Mohm
1 Mohm
Bias Current
10 pA
1 pA
1 pA

Configuration: Differential, bipolar
Zero: Automatic
Span Adjustment: ±5%

NOISE REJECTION
NMR, SIG HI TO SIG LO: 56 dB, 50/60 Hz
CMR, SIG LO to ANA GND: 86 dB, DC to 60 Hz
CMR, AC GND to ANA GND: 120 dB, DC to 60 Hz
CMV, SIG LO to ANA GND: ±1 Vp
CMV, AC GND to ANA GND: 1500 Vp per HV test, 354 Vp per IEC spacing

ACCURACY AT 25°C
Maximum error: ±0.01% of reading ±2 counts
Span tempco: ±0.01% of reading/°C
Step response: 1s
Warmup to rated accuracy: 10 min

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

3-WIRE RATIO REFERENCE
Analog input range: ±2, ±20, ±200 V
External reference input: +0.5 to +2.0 V
Load on reference, std: 6 kohm
Load on reference, opt: 100 Mohm
Accuracy: 99.98%

DISPLAY
Type: 7-segment, red LED
Height: 0.56 in (14.2 mm)
Symbols: -1.8.8.8.8
Decimal points: Four positions selectable by jumpers from front panel or at connector, 10 mA sink
Overrange indication: Four least-significant digits flash

DIGITAL INPUTS
HOLD and TEST inputs: TTL or 5 V CMOS compatible
Blanking Input: Open-collector compatible

POWER
AC voltages: 115 or 230 V ac ±15%
AC frequency: 49 to 440 Hz
DC voltages: 9 to 32 V dc, isolated to 300 Vp; 26 to 56 V dc, isolated to 300 Vp
Power consumption: 2.5 W
Output voltages: +4.7 V dc and -4.6 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
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


Product Selection (Specify Model Number, see variations below in partnumber builder table)
 Part Number   Availability   Price    Description   
 Voltmeter for differential DC, single-ended DC, or DC 3-wire ratio input
 2001A-3 in-stock    $220.00     4-1/2 digit voltmeter, ±1.9999 Vdc input range, 115 Vac power. Standard features include auto-zero, auto-polarity, display hold, includes PCB edge connector for power, signal and display hold.  
 2001A-4,D4 in-stock    $235.00     4-1/2 digit voltmeter, ±19.999 Vdc input range, 115 Vac power, with D4 connector/screw terminal barrier strip, required for CE.  
 2001A-4,C3C,D4 in-stock    $315.00     4-1/2 digit voltmeter, ±19.999 Vdc input range, 9-32Vdc power, with D4 connector/screw terminal barrier strip, required for CE.  
 
All dollar amounts on this site are shown in US currency.

 Ordering Example: (1) 2001A-4,D4 4 1/2 digit (± 19.999 Vdc) voltmeter, red LED display, screw-terminal barrier strip (CE) = $235
 Part Number Builder
(1) (2) (3) (4) (5) (6) (7)
Option Descriptions
(1) Model
  Select
2001A for Standard Model
(2) INPUT RANGE-Pick one
  Select
-3 for ± 1.9999 Vdc
-4 for ± 19.999 Vdc
-5 for ± 199.99 Vdc
(3) 3-WIRE RATIO INPUT IMPEDANCE OPTION (DC input ranges only)
  Select
Nothing(leave field blank) for Standard (6K ohm)
,HZ for High Impedance (100M ohm)
(4) DECIMAL POINT OPTION
  Select
Nothing(leave field blank) for Programmable at D1 connector
,DP1 for 1.9999, internally wired
,DP2 for 19.999, internally wired
,DP3 for 199.99, internally wired
,DP4 for 1999.9, internally wired
(5) POWER OPTION
  Select
Nothing(leave field blank) for 115 Vac, 50/60 Hz power
,C1 for 230 Vac, 50/60 Hz
,C3C for Isolated 9-32 Vdc
,C3E for Isolated 26-56 Vdc
(6) DISPLAY OPTION
  Select
Nothing(leave field blank) for Red LEDs for display
,G for Green LEDs for display
(7) ADD-ON OPTIONS
  Select
Nothing(leave field blank) for No option
,D4 for Screw-terminal barrier strip for power and signal. Removes these inputs from D1. D4 OPTION REQUIRED FOR CE.
,BL for Lens without Newport Logo
 NOTE: All combinations may not be valid, check spec sheet for valid part numbers.


   
Keywords: 4 1/2 DIGIT DC VOLTMETER, Differential, digital indicator, digital panel meter, digital voltmeter, voltage meter, 2001, 2001A, 2001B

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