SCM7B
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75
Isolated Process Control Signal Conditioning Products
SCM7B
Specifications
Input
Signal Range 4-20mA
Protection
Continuous 120Vrms max
Transient ANSI/IEEE C37.90.1
Loop Voltage
(1)
+24VDC
Output
Signal Range
(2)
See Ordering Information
Effective Available Power
(2)
40mW
Resistance <1Ω
Protection Continuous Short-to-Ground
Voltage/Current Limit ±16V, ±14mA
CMV (Input-to-Output)
Continuous 1500Vrms
Transient ANSI/IEEE C37.90.1
CMRR (50 or 60Hz) 105dB
Accuracy
(3)
±0.03% Span typical,
±0.1% Span max
Nonlinearity
(4)
±0.01% Span typical,
±0.02% Span max
Stability (-40°C to +85°C)
Gain ±40ppm/°C
Input Offset N/A
(5)
Output Offset ±0.003% Span/°C
Noise
Peak at 5MHz B/W 5mV
RMS at 10Hz to 100kHz B/W 500µV
Peak at 0.1Hz to 10Hz B/W 3µV RTI
Frequency and Time Response
Bandwidth, -3dB 100Hz
NMR (-3dB at 100Hz) 80dB per decade above 100Hz
Step Response, 90% Span 5ms
Supply Voltage 18 to 30VDC
Current
(2)
56mA
Sensitivity ±0.0002%/%V
S
Mechanical Dimensions 2.13" x 1.705" x 0.605" max
(h)(w)(d) 54.1mm x 43.3mm x 15.4mm max
Environmental
Operating Temperature Range -40°C to +85°C
ATEX Group II, Category 3 -20°C to +40°C
Storage Temperature Range -40°C to +85°C
Relative Humidity 0 to 95% noncondensing
Emissions EN61000-6-4 ISM, Group 1
Radiated, Conducted Class A
Immunity EN61000-6-2 ISM, Group 1
R F Performance A ±0.5% Span Error
ESD, EFT, Surge, Voltage Dips Performance B
Module
SCM7B35
Typical at 25°C and +24VDC
NOTES:
(1) +24V will be supplied to the loop for an open loop condition. Approximately +22V to +16V will be
supplied for a corresponding 4mA to 20mA input. Loop voltage is independent of supply voltage.
(2) Output Range and Supply Current specifications are based on minimum output load resistance.
Minimum output load resistance is calculated by V
OUT
2
/P
E
, where P
E
is the Output Effective Available
Power that guarantees output range, accuracy, and linearity specifications.
(3) Accuracy includes the effects of repeatability, hysteresis, and linearity.
(4) Nonlinearity is calculated using the best-fit straight line method.
(5) Input offset term included in output offset specification.
Ordering Information
Model Input Range Output Range
SCM7B35-01 4 to 20mA +1 to +5V
SCM7B35-01A 4 to 20mA 0 to +5V
SCM7B35-01D 4 to 20mA 0 to +10V
SCM7B35-02 4 to 20mA +2 to +10V
(2 strony)
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