Description
The GE IS215ACLEH1A (along with revision variant IS215ACLEH1AB) is a specialized Resistance Temperature Detector (RTD) input board designed for the Speedtronic Mark VI turbine control platform, engineered to acquire, condition, and digitize precise temperature measurements from critical industrial sensors.
📋 Technical Specifications Datasheet
- Brand: GE (General Electric / Baker Hughes)
- Model: IS215ACLEH1A / IS215ACLEH1AB
- Series: Speedtronic Mark VI Control Platform
- Product Name: RTD Input Board / Temperature Acquisition Module
- Manufacturing Origin: United States
- Product Status: Industrial Control Standard / Replacement Part
- Dimensions: Standard Mark VI rack-compatible printed circuit board form factor
- Weight: Approximately 0.7 kg
- Original Equipment Manufacturer: GE Energy / Industrial Solutions
- Power Rating: Low-voltage internal logic and sensor excitation power distribution
⚙️ Operating Norms and Usage
- Observe strict electrostatic discharge (ESD) safety protocols, utilizing a properly grounded wrist strap when handling the printed circuit board.
- Mount the board securely within its designated core cabinet slot or terminal board rack, ensuring full edge-connector and backplane engagement.
- Verify all RTD sensor wiring, shield grounding, and terminal block screw torque against system installation drawings prior to powering up.
⚡ Power-On / Power-Off Sequence
- Power-On Sequence: Confirm all incoming sensor terminations and power feeds are secure, energize the low-voltage logic supply, and monitor controller diagnostic indicators for normal communication and boot status.
- Power-Off Sequence: Disable active turbine control loops via the HMI, power down the rack power distribution sources, and ensure full circuit discharge before removing or servicing the board.
📖 Product Usage Instructions
- Continuously monitor board diagnostic indicators and system HMI status to track RTD sensor health and loop integrity.
- Use GE ToolboxST configuration software to verify signal scaling, calibration, and diagnostic parameters associated with the RTD input channels.
- Periodically inspect terminal blocks and wiring connections for signs of thermal stress, vibration wear, or oxidation.
❓ Common Questions & Answers Q&A
- Q: What is the primary function of the IS215ACLEH1A board?
A: It precisely measures and conditions inputs from Resistance Temperature Detectors (RTDs) deployed across bearings, exhausts, and auxiliary systems, feeding accurate temperature data to the control processors.
- Q: What does an open-circuit or out-of-range sensor error indicate on this board?
A: It typically signals a broken sensor wire, loose terminal connection, or a failed RTD element; check physical field wiring and verify channel status via ToolboxST.
Recommended Alternative Series & Models
- GE Mark VI Board: IS200TDBTH2A
- GE Mark VI Board: IS215AEPCH1FA
- GE Mark VI Board: IS200DSPCH1AEA
- GE Mark VI Board: IS200EPDMH1AAA
- GE Mark VI Board: IS200VRTCH1AAA
- GE Mark VIe Module: IS420UCSCH1A
- GE Control Board: DS200TBCIG1AAB
- GE Drive Board: 531X301DCCAFG2
- GE Terminal Board: 531X305NTBAPG1
- GE Multilin Relay: SR750-P1-G1-S1-HI-A20-R-E-H


