SCM7B
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73
Isolated Process Control Signal Conditioning Products
SCM7B
Specifications
Typical at 25°C and +24VDC
Input
Signal Range 100Ω Pt RTD 120Ω Ni RTD
See Ordering Information *
Protection
Continuous 120Vrms max *
Transient ANSI/IEEE C37.90.1 *
Sensor Excitation Current
(1)
≈250µA *
Lead Resistance Effect ±0.02°C/Ω max *
Output
Signal Range
(2)
Effective Available Power
(2)
40mW *
Resistance <1Ω *
Protection Continuous Short-to-Ground *
Voltage/Current Limit ±12V, ±14mA *
CMV (Input-to-Output)
Continuous 1500Vrms *
Transient ANSI/IEEE C37.90.1 *
CMRR (50 or 60Hz) 160dB *
Accuracy
(3)
See Ordering Information *
Nonconformity
(4)
See Ordering Information *
Stability (-40°C to +85°C)
Gain ±60ppm/°C *
Input Offset ±1µV/°C *
Zero Suppression ±0.002%(R
Z
/R
SPAN
)
(5)
/°C *
Output Offset ±0.002% Span/°C *
Noise
Peak at 5MHz B/W 500µV *
RMS at 10Hz to 100kHz B/W 250µV *
Peak at 0.1Hz to 10Hz B/W 1µV RTI *
Open Input Response
+ Lead Upscale *
Lead Non-deterministic *
x Lead Downscale *
Open Input Detection Time <5s *
Frequency and Time Response
Bandwidth, -3dB 3Hz *
NMR (50/60Hz) 80/85dB *
Step Response, 90% Span 250ms *
Supply Voltage 14 to 35VDC *
Current
(2)
12mA *
Sensitivity ±0.0001%/%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 *
Ordering Information
Model Input Range
Accuracy
(2)
Typical
100
ΩΩ
ΩΩ
Ω Pt **
SCM7B34-01 -100°C to +100°C ±0.075% ±0.15% ±0.025% ±0.05%
(-148°F to +212°F) (0.15°C) (0.30°C) (0.05°C) (0.10°C)
SCM7B34-02 0°C to +100°C ±0.10% ±0.2% ±0.025% ±0.05%
(+32°F to +212°F) (0.10°C) (0.20°C) (0.025°C) (0.05°C)
SCM7B34-03 0°C to +200°C ±0.075% ±0.15% ±0.025% ±0.05%
(+32°F to +392°F) (0.15°C) (0.30°C) (0.05°C) (0.10°C)
SCM7B34-04 0°C to +600°C ±0.05% ±0.1% ±0.025% ±0.05%
(+32°F to +1112°F) (0.30°C) (0.60°C) (0.15°C) (0.30°C)
SCM7B34-05 -50°C to +350°C ±0.05% ±0.1% ±0.025% ±0.05%
(-58°F to +662°F) (0.20°C) (0.40°C) (0.1°C) (0.20°C)
120
ΩΩ
ΩΩ
Ω Ni **
SCM7B34N-01 0°C to +300°C ±0.15% ±0.3% ±0.06% ±0.12%
(+32°F to +572°F) (0.45°C) (0.90°C) (0.18°C) (0.36°C)
SCM7B34N-02 0°C to +200°C ±0.15% ±0.3% ±0.07% ±0.14%
(+32°F to +392°F) (0.30°C) (0.60°C) (0.14°C) (0.28°C)
Module SCM7B34 SCM7B34N
Nonconformity
(3)
Typical Max Max
NOTES:
*Specification same as preceding model.
(1) Sensor excitation current is model dependent.
(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 conformity specifications.
(3) Accuracy includes the effects of repeatability, hysteresis, and conformity.
(4) Nonconformity is calculated using the best-fit straight line method.
(5) R
Z
is the value of the RTD resistance at the lowest measurement point. R
SPAN
is the change in
resistance over the measurement span.
**RTD Standards
Type Alpha Coefficient DIN JIS
100
Ω Pt 0.00385 DIN 43760 JIS C 1604-1989
120Ω Ni 0.00672
Output Range Part No. Suffix Example
+1 to +5V NONE SCM7B34-01
0 to +5V A SCM7B34-01A
0 to +10V D SCM7B34-01D
Output Ranges Available
(2 strony)
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