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Signal Conditioning Module DI-8B47
Levertijd:
3~4 weken
SKU
DI-8B47
DI-8B47 Linearized Thermocouple Input Modules (Type J)
● Interfaces to Thermocouple Type J
● Linearizes Thermocouple Signal
● High Level Voltage Outputs
● 1500 Vrms Transformer Isolation
● ANSI/IEEE C37.90.1
● Input Protected to 240 VAC Continuous
● 120 dB CMR
● 70 dB NMR at 60 Hz
● Low Drift with Ambient Temperature
● Accurate CJC -40 °C ~ +85 °C
● CSA, FM, and CE Certifications Pending
● Mix and Match Modules
DI-8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B47 module isolates, filters, amplifies, and linearizes a single channel of temperature input from a thermocouple and provides an analog voltage output.
Linearization is accomplished using a four breakpoint piecewise linear approximation.
The DI-8B47 can interface to industry standard thermocouple type J, K, and T and has an output signal of 0V to +5V. 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.
Signal filtering is accomplished with a three-pole filter optimized for time and frequency response which provides 70dB of normal-mode-rejection at 60Hz. One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other two are on the system side.
A special input circuit on the DI-8B47 module provides protection against accidental connection of power-line voltages up to 240VAC.
The modules are designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.
Art.nr.
DI-8B47
Fabrikant
Dataq Instruments
Land van herkomst
Verenigde Staten
Input Range
0°C to +760°C (DI-8B47J-01)
-100°C to +300°C (DI-8B47J-02)
0°C to +500°C (DI-8B47J-03)
-100°C to +760°C (DI-8B47J-12)
0°C to +1000°C (DI-8B47K-04)
0°C to +500°C (DI-8B47K-05)
-100°C to +1350°C (DI-8B47K-13)
0°C to +1200°C (DI-8B47K-14)
-100°C to +400°C (DI-8B47T-06)
0°C to +200°C (DI-8B47T-07)
-100°C to +300°C (DI-8B47J-02)
0°C to +500°C (DI-8B47J-03)
-100°C to +760°C (DI-8B47J-12)
0°C to +1000°C (DI-8B47K-04)
0°C to +500°C (DI-8B47K-05)
-100°C to +1350°C (DI-8B47K-13)
0°C to +1200°C (DI-8B47K-14)
-100°C to +400°C (DI-8B47T-06)
0°C to +200°C (DI-8B47T-07)
Bandwidth
-3dB | 3Hz |
Output Range
0 to +5V
Algemeen
Input Bias Current | -25nA | ||||||||||
Input Resistance |
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Input Protection |
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CMV, Input to Output | 1500Vrms max | ||||||||||
Transient, Input to Output | ANSI/IEEE C37.90.1 | ||||||||||
CMR (50Hz or 60Hz) | 120dB | ||||||||||
NMR | 70dB at 60Hz | ||||||||||
Accuracy |
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Stability |
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Noise (Output, 100kHz) | 250μVrms | ||||||||||
Response Time, 90% Span | 150ms | ||||||||||
Output Protection (Transient) | ANSI/IEEE C37.90.1 (Continuous Short to Ground) | ||||||||||
Cold Junction Compensation |
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Power Supply Voltage | +5VDC ±5% | ||||||||||
Power Supply Current | 30mA | ||||||||||
Power Supply Sensitivity | ±100ppm/% | ||||||||||
Dimensions | 28.1 x 41.9 x 10.2mm | ||||||||||
Operating Temperature | -40ºC to +85ºC | ||||||||||
Storage Temperature | -40ºC to +85ºC | ||||||||||
Humidity | 0 to 95% Noncondensing |