IS230TRTDH2D - RTD Input Terminal Board

IS230TRTDH2D - RTD Input Terminal Board IS230TRTDH2D - RTD Input Terminal Board

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Part Number: IS230TRTDH2D
Manufacturer: General Electric
Series: Mark VIe
Product Type: RTD Input Terminal Board
Number of channels: 8
Power supply voltage: 28 V dc
Voltage Range: 14 to 32 V dc
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -30 to 65°C
Size: 30 cm high x 18 cm
Repair: 3-7 Day
Availability: In Stock
Manual: GEH-6421M
Country of Origin: United States


IS230TRTDH2D is an RTD Input Terminal Board manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Gas Turbine Control Systems. The RTD Input (TRTD) terminal board accepts 16, three-wire RTD inputs. These inputs are wired to two barrier-type terminal blocks. The inputs have noise suppression circuitry to protect against surge and high-frequency noise. TRTD communicates with one or more I/O processors, which convert the inputs to digital temperature values and transfer them to the controller. In the Mark VIe system, TRTDH1D and TRTDH2D work with the PRTD I/O pack and support simplex applications only. Two PRTD packs plug into the TRTD for a total of 16 inputs.


Connect the wires for the 16 RTDs directly to the two terminal blocks on the terminal board. Each block is held down with two screws and has 24 terminals accepting up to #12 AWG wires. A shield terminal strip attached to the chassis ground is located immediately to the left of each terminal block. In a TMR Mark VI system, TRTDH1B provides redundant RTD inputs by fanning the inputs to three VRTD boards in the R, S, and T racks. The inputs meet the same environmental, resolution, suppression, and function requirements and codes as the TRTDH1C terminal board; however, the fast scan is not available.


TRTD supplies a 10 mA dc multiplexed (not continuous) excitation current to each RTD, which can be grounded or ungrounded. The 16 RTDs can be located up to 300 m (984 ft) from the turbine control cabinet with a maximum two-way cable resistance of 15 Ω. The A/D converter in the I/O processor samples each signal and the excitation current four times per second for normal mode scanning and 25 times per second for fast mode scanning, using a time sample interval related to the power system frequency. The software performs the linearization for the selection of 15 RTD types. RTD open and short circuits are detected by out-of-range values. An RTD that is determined to be outside the hardware limits is removed from the scanned inputs to prevent adverse effects on other input channels. Repaired channels are reinstated automatically in 20 seconds or can be manually reinstated.

WOC has the largest stock of GE Distributed Gas Turbine Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


What is an RTD input terminal board?

An RTD input terminal board is a device used to connect RTD temperature sensors to measurement or control systems. It provides terminals for easy wiring and often includes features such as signal conditioning.

What is the purpose of an RTD input terminal board?

The purpose of an RTD input terminal board is to provide a convenient interface between RTD temperature sensors and the measurement or control system. It ensures proper electrical connections and may include features like signal amplification or filtering.

What types of RTD sensors can be connected to an RTD input terminal board?

Most RTD input terminal boards are designed to work with commonly used RTD sensor types such as Pt100, Pt1000, or Ni100. They may also support different temperature ranges and configurations.