Product Description
The IS220PTCCH1A is a thermocouple input manufactured by General Electric for use within the Mark VI/Mark VIe systems. These systems were some of the later Speedtronic systems developed and released by General Electric for the management and control of gas, hydro and steam industrial turbine systems. This pack has an internally placed BPPx processor board as well as an acquisition board that is used for thermocouple input functions.
The IS220PTCCH1A can be used in simplex, duplex, and triple modular redundant applications. This board can support E, J, K, S, and T standard thermocouples as well as mV inputs with a span of -8 to 45 mV. E, J, K, S, and T thermocouples can be either grounded or ungrounded and can be located up to 984 feet from the turbine I/O panel. Cable resistance must be kept to a maximum 450 Ω. The number of packs used dictate the following:
- Qty 1 IS220PTCCH1A - 12 Thermocouple Inputs
- Qty 2 IS220PTCCH1A - 24 Thermocouple Inputs
- Qty 3 IS220PTCCH1A - Used in TMR Configurations
The IS220PTCCH1A offers a maximum software error/conformity error of .25 degrees Fahrenheit. Common mode voltage is +/- 5 volts with AC common-mode rejection of 100dB @50/60Hz. Common mode rejection includes filtering for both hardware and software. The unit also includes normal mode rejection of 250 mV RMS @ 50/60 Hz (+/-5%) and high/low hardware and software limit checks. The unit is designed for operation in ambient conditions from -22 to +149 degrees Fahrenheit.
Additional information about the IS220PTCCH1A, including important handling and installation instructions and warnings, can be found in GE product manuals and guides.