C5B 47 Linearized Thermocouple Input Modules C5B Isolated Analog Signal Conditioning Products

C5B 47 Linearized Thermocouple Input Modules C5B Isolated Analog Signal Conditioning Products
Isolated Analog Signal Conditioning Products
C5B
C5B 47
Linearized Thermocouple Input Modules
Description
Each C5B 47 thermocouple input module provides a single channel of
thermocouple input which is filtered, isolated, amplified, linearized and converted to a high-level analog voltage output (Figure 1). This voltage output is
logic-switch controlled, allowing these modules to share a common analog bus
without the requirement of external multiplexers.
The C5B modules are designed with a completely isolated computer side
circuit which can be floated to ±50V from Power Common, pin 16. This complete
isolation means that no connection is required between I/O Common and Power
Common for proper operation of the output switch. If desired, the output switch
can be turned on continuously by simply connecting pin 22, the Read-Enable
pin, to I/O Common, pin 19.
The C5B 47 can interface to eight industry standard thermocouple types: J,
K, T, E, R, S, N, and B. Its corresponding output signal operates over a 0V to +5V
range. Each module is cold-junction compensated to correct for parasitic
thermocouples formed by the thermocouple wire and screw terminals on the
mounting backpanel. Upscale open thermocouple detect is provided by an
internal pull-up resistor. Downscale indication can be implemented by installing
an external 47MΩ resistor, ±20% tolerance, between screw terminals 1 and 3
on the C5B 47 backpanels.
Signal filtering is accomplished with a six-pole filter which provides 95dB of
normal-mode rejection at 60Hz and 90dB at 50Hz. Two poles of this filter are on
the field side of the isolation barrier, and the other four are on the computer side.
After the initial field-side filtering, the input signal is chopped by a proprietary
chopper circuit. Isolation is provided by transformer coupling, again using a
Features
• Interfaces to Types J, K, T, E, R, S, N
and B Thermocouples
• Linearizes Thermocouple Signal
• High-Level Voltage Outputs
• 1500Vrms Transformer Isolation
• ANSI/IEEE C37.90.1 Transient Protection
• Input Protected to 240VAC Continuous
• 160dB CMR
• 95dB NMR at 60Hz, 90dB at 50Hz
• ±1µV/°C Drift
• CSA C/US Certified, CE and ATEX Compliant
• Mix and Match C5B Types on Backpanel
proprietary technique to suppress transmission of common mode
spikes or surges. The module is powered from +5VDC, ±5%.
A special input circuit on the C5B 47 modules provides protection
against accidental connection of power-line voltages up to 240VAC.
Figure 1: C5B 47 Block Diagram
For information call 800-341-2525
©2011 CyberResearch Inc., All Rights Reserved • Rev. 1.0, May 2011
Isolated Analog Signal Conditioning Products
Specifications
Ordering Information
Typical at TA=+25°C and +5V power
Module
C5B-47
Input Range
Input Bias Current
Input Resistance
Normal
Power Off
Overload
Input Protection
Continuous
Transient
Accuracy
Stability
Input Offset
Output Offset
Gain
Noise
Input, 0.1 to 10Hz
Output, 100kHz
B d 3 –
Response Time, 90% Span
Model
3, 4
±0.08%
±0.61°C
C5B 47-J02
J
–100°C to +300°C
(–148°F to +572°F)
3, 4
±0.08%
±0.32°C
C5B 47-J03
J
0°C to +500°C
(+32°F to 932°F)
3, 4
±0.07%
±0.36°C
C5B 47-K04
K
0°C to +1000°C
(+32°F to +1832°F)
3, 4
±0.08%
±0.80°C
C5B 47-K05
K
0°C to +500°C
(+32°F to +932°F)
3, 4
±0.08%
±0.38°C
C5B 47-T06
T
–100°C to +400°C
(–148°F to +752°F)
3, 4
±0.16%
±0.80°C
C5B 47-T07
T
0°C to +200°C
(+32°F to +392°F)
3, 4
±0.13%
±0.25°C
C5B 47-E08
E
0°C to +1000°C
(+32°F to +1832°F)
3, 4
±0.10%
±1.0°C
C5B 47-R09
R
+500°C to +1750°C
(+932°F to +3182°F)
3, 4
±0.10%
±1.3°C
C5B 47-S10
S
+500°C to +1750°C
(+932°F to +3182°F)
3, 4
±0.10%
±1.3°C
C5B 47-B11
B
+500°C to +1800°C
(+932°F to +3272°F)
3, 4
±0.15%
±2.0°C
+8mA
C5B 47-J12
J
–100°C to +760°C
(–148°F to +1400°F)
3, 4
±0.08%
±0.70°C
+0.8V
+2.4V
+36V
0.5µA
Upscale
<10s
C5B 47-K13
K
–100°C to +1350°C
(–148°F to +2462°F)
3, 4
±0.08%
±1.20°C
C5B 47-K14
K
0°C to +1200°C
(+32°F to +2192°F)
3, 4
±0.08%
±0.96°C
C5B 47-N15
N
–100°C to +1300°C
(–148°F to +2372°F)
3, 4
±0.08%
±1.15°C
0.2µVrms
300µVp-p,150µVrms
d n a B z H 4
0.2s
See Ordering Information
50Ω
Continuous Short to Ground
6µs at C load = 0 to 2000pF
±0.25°C
±0.5°C
±1.25°C
Power Supply Voltage
Power Supply Current
Power Supply Sensitivity
+5VDC ±5%
30mA
±2µV/% RTI(3)
Mechanical Dimensions
(h)(w)(d)
2.28" x 2.26" x 0.6"
(58mm x 57mm x 15mm)
Environmental
Operating Temperature Range
Storage Temperature Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT
0°C to +760°C
(+32°F to +1400°F)
Accuracy(1)
50MΩ
40kΩ
40kΩ
±1µV/°C(2)
±20µV/°C
±25ppm/°C
Output Enable Control
Max Logic “0”
Min Logic “1”
Max Logic “1”
Input Current “0,1”
Open Input Response
Open Input Detection Time
Cold Junction Compensation
Accuracy, 25°C
Accuracy, +5°C to +45°C
Accuracy, –40°C to +85°C
Output
Range†
J
See Ordering Information
Output Range
Output Resistance
Output Protection
Output Selection Time
(to ±1mV of V OUT )
Output Current Limit
Input Range
C5B 47-J01
1500Vrms max
ANSI/IEEE C37.90.1
160dB
95dB at 60Hz, 90dB at 50Hz
, h t d i w
TC
Type‡
–0.1V to +0.5V
–25nA
240Vrms max
ANSI/IEEE C37.90.1
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR
C5B
Thermocouple Alloy Combinations
‡
Standards: DIN IEC 584, ANSI MC96-1-82, JIS C 1602-1981
–40°C to +85°C
–40°C to +85°C
0 to 95% Noncondensing
ISM, Group 1
Class A
ISM, Group 1
Performance A ±0.5% Span Error
Performance B
NOTES:
(1) Includes conformity, hysteresis and repeatability. Does not include CJC accuracy.
(2) This is equivalent to °C as follows: Type J 0.020 °C/°C, Types K, T 0.025°C/°C,
Type E 0.016°C/°C, Types R, S 0.168°C/°C, Type N 0.037°C/°C, Type C 0.072°C/°C.
(3) RTI = Referenced to input.
†
Type
Material
J
K
T
E
R
S
B
N
Iron vs. Copper-Nickel
Nickel-Chromium vs. Nickel-Aluminum
Copper vs. Copper-Nickel
Nickel-Chromium vs. Copper-Nickel
Platinum-13% Rhodium vs. Platinum
Platinum-10% Rhodium vs. Platinum
Platinum-30% Rhodium vs. Platinum-6% Rhodium
Nickel-14.2% Chromium-1.4% Silicon vs. Nickel-4.4%
Silicon- 0.1% Magnesium
Output Ranges Available
Output Range
3.
4.
Part No. Suffix
0V to +5V
0V to +10V
NONE
D
Example
C5B 47-J01
C5B 47-J01D
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©2011 CyberResearch Inc., All Rights Reserved • Rev. 1.0, May 2011
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