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HE693THM667

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SKU 2178427  UPC 0975013426782

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Other Available Revisions for the HE693THM667 HE693THM667AHE693THM667BHE693THM667CHE693THM667DHE693THM667EHE693THM667FHE693THM667GHE693THM667HHE693THM667IHE693THM667JHE693THM667KHE693THM667LHE693THM667MHE693THM667NHE693THM667OHE693THM667PHE693THM667QHE693THM667RHE693THM667SHE693THM667THE693THM667UHE693THM667VHE693THM667WHE693THM667XHE693THM667YHE693THM667Z

Common misspellings:
  • HE693THM667

The HE693THM667 allows thermocouple temperature sensors to be connected to the PLC directly without the use of external signal processing such as transducers, transmitters, etc. All analog and digital processing of the thermocouple signal is performed on the module. These backplane-isolated (or bus-isolated) modules report temperature values to the PLC I/O table in increments of 0.5°C, 0.5°F, 0.1°C, or 0.1°F respectively. The module features six thermocouple channels whose temperature values are reported to 6 %AI input registers. Each channel can be individually configured for a specific type of sensor wire. There are 6 %I alarm bits and one setpoint alarm for each channel. Alarm setpoints are configured for each channel using 6 %AQ registers. An available feature on the isolated thermocouples is the use of 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.

Technical Specifications

Power Consumption 200mA @ 5VDC
Number of channels 6
Backplane Isolation ±1500 VAC to PLC backplane
Channel Isolation ±250V AC channel-to-channel
A/D Conversion Time 5ms
Common Channel Points NONE
Operating Temperature 0 to 60°C (32 to 140°F)
Operating Mode Self-Scan
I/O Points Required 6%AI, 6%AQ, 16%I
Input Impedance 1000M ohms @ < 100mV
Maximum Sustained Differential O/L ±35V
Common Mode Rejection >100dB
A/D Conversion Type 18-bit integrating
Scan Rate 40 channels per second
Open Thermocouple Response Programmable Upscale or Downscale
Relative Humidity 5% to 95% non-condensing
Resolution 0.5°C, 0.5°F, 0.1°C, 0.1°F

 

Technical Information

 

Power Consumption 200mA @ 5VDC
Number of channels 6
Backplane Isolation ±1500 VAC to PLC backplane
Channel Isolation ±250V AC channel-to-channel
A/D Conversion Time 5ms
Common Channel Points NONE
Operating Temperature 0 to 60°C (32 to 140°F)
Operating Mode Self-Scan
I/O Points Required 6%AI, 6%AQ, 16%I
Input Impedance 1000M ohms @ < 100mV
Maximum Sustained Differential O/L ±35V
Common Mode Rejection >100dB
A/D Conversion Type 18-bit integrating
Scan Rate 40 channels per second
Open Thermocouple Response Programmable Upscale or Downscale
Relative Humidity 5% to 95% non-condensing
Resolution 0.5°C, 0.5°F, 0.1°C, 0.1°F
  • Question: What is a HE693THM667? Answer: The HE693THM667 allows thermocouple temperature sensors to be directly connected to the PLC without external signal processing (transducers, transmitters, etc.). All analog and digital processing of the thermocouple signal is performed on the module.
  • Question: What is the main power supply for the HE693THM667? Answer: The main power source for the HE693THM667 uses 200mA @ 5VDC which is connected to the PLC.
  • Question: How can I minimize capacitive loading and noise? Answer: Shielded, twisted-pair extension wiring offers the best noise immunity. 
  • Question: Where should the shields be connected to? Answer: If shielded wiring is used, a good earth ground connection is critical. 
  • Question: Can I change the number of channels or the voltage on this device? Answer: Yes, you can. This is a 6 channel unit.

 

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