BCD 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 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
RECEIVER
|
Most-sensitive
scaling
|
Least-sensitive
scaling
|
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Signal
Range
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±0.8
V
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±100 V
|
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Display
Range
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±39,999
counts
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±39,999
counts
|
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Resolution
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20
µV/count
|
2.5
mV/count
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Input
resistance
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>
1.0 Mohm
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>
1.0 Mohm
|
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Bias
current
|
1
nA
|
100
pA
|
|
Maximum
input
|
250
Vp
|
250
Vp
|
|
CURRENT
RECEIVER
|
Most-sensitive
scaling
|
Least-sensitive
scaling
|
|
Signal
Range
|
±1.0
mA
|
±50 mA
|
|
Display
Range
|
±39,999
counts
|
±39,999
counts
|
|
Resolution
|
50
nA/count
|
1.25
µA/count
|
|
Input
resistance
|
500
ohm
|
10
ohm
|
|
Voltage
drop, max
|
±1.0
V
|
±1.0
V
|
|
Signal
power, max
|
.125
W
|
.125
W
|
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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† All dollar amounts on this site are shown in US currency.
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