4 3/4 DIGIT PROCESS METER WITH BCD OUTPUT
MODEL 2004-FS - OPTION AVG/RMS
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OPTIONS  ±49,999-count
display span Isolated, stored,
three-state parallel BCD IEEE-488 (GPIB)
interface Digital setpoint
controller Digital peak
or valley hold 5 V dc power Screw-terminal
barrier strip NEMA-4 splash-proof
lens cover NEMA-size caseBCD OUTPUT STANDARD Model 2004-FS is a process meter with exceptionally high resolution, accuracy and stability. The standard display span is ±39,999 counts, providing a resolution of 0.0025% of full scale per count. An extended display span of ±49,999 counts is optional. Accuracy is up to 99.99% of reading. Span tempco is better than ±50 ppm of reading/°C, as made possible by precision wirewound resistors. The 2004-FS offers extensive zero and span adjustment capability plus programmable decimal points for use with all popular process signals, such as 4-20 mA, 10-50 mA, 1-5 V and 0-10 V. It also provides exceptional noise rejection. Its conversion circuit uses a crystal oscillator, which is set for either 50 or 60 Hz rejection. For additional display stability, the meter main assembly can be electrically configured for least-significant digit round-off by 2's or 5's. STANDARD BCD OUTPUT Unbuffered, non-isolated parallel BCD output is a standard feature of the 2004 and is implemented on the main circuit board. This output is good for about 1 ft and allows the 2004-FS to be interfaced to a digital comparator (Model 872A) or a printer (Model 820A). Additional data and control outputs can be provided by an optional upper board. OPTIONS Upper board options include four BCD output boards, an IEEE-488 (GPIB) communications interface, 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. For additional information, please refer to the Options and Mechanical sections. SPECIFICATIONS ANALOG INPUT
VOLTAGE & CURRENT RECEIVER Coarse-span adjustment: Internal attenuator (voltage) or shunt (current) Fine-span adjustment: Front-panel accessible potentiometer Coarse-zero adjustment: Internal resistor divider Fine-zero adjustment: Front-panel accessible potentiometer Input configuration: Single-ended NOISE REJECTION NMR, SIG HI to SIG GND: 60 dB, 50/60 Hz CMR, SIG GND to PWR GND: 120 dB CMV, SIG GND to PWR GND: 1500 Vp per HV test, 354 Vp per IEC spacing ACCURACY AT 25°C Maximum error: ±0.005% of reading ±3 counts Span tempco: ±0.005% of reading/°C Zero drift, max: ±0.01% of reading/°C Offset drift, max: (±0.01% offset V ±0.01% FS V)/°C Step response: 1 s to 99.9% of span 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 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 INPUTS 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 voltages: 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 
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