Temperature Scanner/Pyrometer | ||
Revised | ||
Catalog Section 10 | ||
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Description
TDXM Model
■ Scans Up To 24 Channels
■ Three (3) Adjustable Trip Points Per Channel
■ Accepts Any Combination of “J” or “K” Type Grounded or Ungrounded Thermocouples
■ 2 Separate Groups with Deviation Trip Functions Selectable ■ Powered By 10 to 32 VDC Systems
■ RS485 Serial Communications Port
■ Uses MConfigTM Configuration and Monitoring Software■ CSA Certified for Use in Class I, Division 2, Groups “C & D” Hazardous Locations
The innovative new TDXM now gives you a unique con- figurable temperature scanner/pyrometer with a
Highly reliable and versatile, the TDXM accepts up to 24 type “J” or “K” grounded or ungrounded* thermo- couples. Each channel has three (3) adjustable set- points SP1, SP2 and SP3. The SP1, SP2 and SP3 Setpoints correspond to the SP1, SP2 and SP3 outputs. Additionally it has the selectable feature to monitor and alarm or shutdown on deviation from an average from up to two groups of temperatures (GRP/DEV; deviation from average). One group could be exhaust temperatures and another group could be bearing temperatures.
The TDXM is capable of communicating with controllers, PLC’s, computers or SCADA (Supervisory Control & Data Acquisition) systems by a
The
User Interface (Faceplate)
The User Interface includes a numeric LCD display and a
Thermocouple Types
Each of the 24 channels on the TDXM can be con- figured as either “J” or “K” type thermocouples
and temperature units can be selected as °F or °C readout for each channel. Unused channels can be set to “Ignore” and will not be seen in the display and will not cause fault trips.
Control Options
Each TDXM model features three outputs: 2 Field Effect Transistor (FET) outputs and 1
Setpoint History
The TDXM stores the last setpoint trip for each output in
1 was the last SP1 tripped, the LCD display will read: SP1 1when the Setpoint History is accessed for SP1.
Sensor Inputs and
Terminals
The TDXM accepts up to 24, either “J” or “K” type grounded or ungrounded* thermocouples using 24 pairs of screw type connections. Each pair has a jumper from the factory. Any tripped setpoint is detected within 2 seconds after the set point is exceeded.
RS485 Serial Port
The RS485 serial port (MODBUS®† RTU slave) on the back of the module is provided for communicating with
of stop bits, and slave node number can be set using the keypad. Communication is
Specifications
Power Input (Operating Voltages): 10- 32VDC,750 mW max.Sensor Inputs: Up to 24 type “J” or “K” grounded or ungrounded* thermocouples.
Outputs: Two (2) Outputs 0.5 A, 350 VDC,NOTE: The form “C” relay output is
Display Type: Custom
Accuracy: Cold junction: Better than ±0.5°C (1.0°F). Type “J” or “K”: ±1°C (2°F); 38 - 1093°C
(100 - 1999°F).Cold Junction Compensation:*We recommend the use of ungrounded thermocouples. Errors in readings with grounded thermocouples can be the result of differences in grounding between different devices.
†MODBUS® is a registered trademark of AEG Schneider Automation Inc.