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HE693THM888

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SKU 2172466  UPC 0245310601237

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MSRP $3995


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Other Available Revisions for the HE693THM888 ABCDEFGHIJKLMNOPQRSTUVWXYZ

The HE693THM888 allows thermocouple temperature sensors to be connected to the PLC directly without external signal processing such as transducers, transmitters, etc. All analog and digital processing of the thermocouple signal is within the module. This high-resolution module has a resolution of 0.1°C, and temperature values may be sent to the PLC I/O table in 0.5°C, 0.5°F, 0.1°C, or 0.1°F increments. The module features eight thermocouple channels whose temperature values are reported to 8 %AI input registers. There are 16 %I Alarm Bits, one open circuit alarm and one setpoint alarm for each channel. Alarm setpoints are set for each channel through 8 %AQ registers. Open circuit alarm bits for each channel correspond to the first eight successive %I bits, and the alarm setpoints for each channel correspond to the second eight successive %I bits. A feature available on Revision H or later is autodetected external AD592 cold junction compensation. This allows cold junction compensation to be accomplished in a remote isothermal terminal strip, with a standard copper wire run from the remote terminal strip to the module. AD Converter hardware has been optimized for 60Hz rejection.

Technical Specifications


Power Consumption 100mA @ 5VDC
Number of Channels 8
Types Supported J, K, N, T, E, R, S, B, C, X
Resolution 0.1°C
I/O Points Required 8%AI, 8%AQ, 16%I
Input Impedance >20Mohms
Maximum Sustained O/L +/-35V
Common Mode Rejection >100dB
A/D Conversion Type 18-Bit Integrating
A/D Conversion Time 5 ms
Scan Rate 16 channels per second
Operating Temperature 0 to 60°C (32 to 140°F)
Relative Humidity 5% to 95% non-condensing

 

Technical Information

Power Consumption 100mA @ 5VDC
Number of Channels 8
Types Supported J, K, N, T, E, R, S, B, C, X
Resolution 0.1°C
I/O Points Required 8%AI, 8%AQ, 16%I
Input Impedance >20Mohms
Maximum Sustained O/L +/-35V
Common Mode Rejection >100dB
A/D Conversion Type 18-Bit Integrating
A/D Conversion Time 5 ms
Scan Rate 16 channels per second
Operating Temperature 0 to 60°C (32 to 140°F)
Relative Humidity 5% to 95% non-condensing
  • Question: What is a HE693THM888? Answer: The HE693THM888 allows thermocouple temperature sensors to be connected to the PLC directly without external signal processing such as transducers, transmitters, etc. All analog and digital processing of the thermocouple signal is within the module. This high-resolution module has a resolution of 0.1°C, and temperature values may be sent to the PLC I/O table in 0.5°C, 0.5°F, 0.1°C, or 0.1°F increments.
  • Question: What is the main power consumption for the HE693THM888? Answer: The main power source for this unit uses 100mA @ 5VDC. 
  • Question: Can extension wire be used with the HE693THM888? Answer: Extension wire of the proper Thermocouple type must be used. Keep total wire resistance less than 100Ω to maintain rated accuracy.
  • Question: How can you reduce the noise on the HE693THM888? Answer: Shielded, twisted-pair extension wiring offers the best noise immunity.
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