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SPECIFICATIONS:
Part Number: IS200DDPTH1A
Manufacturer: General Electric
Series: Mark VI
Product Type: Simplex Dynamic Pressure Transducer Input Terminal Board
Number of channels: 12
Number of Transducers: 2
Transducer Power Supply: 24 V dc
Pressurewavefrequency Range: Fmin= 1.5Hz
Technology: Surface Mount
Common Mode Voltage Range: ±5 V
Maximum Lead Resistance: 15Ω
Analog output current: 0-20 mA
Operating temperature: -30 to 65°C
Size: 8.26 cm high x 4.19 cm
Repair: 3-7 Day
Availability: In Stock
Weight: 2lbs 4oz
Country of Origin: United States
Manual: GEH-6421M
FUNCTIONAL DESCRIPTION:
IS200DDPTH1A is a Simplex Dynamic Pressure Transducer Input Terminal Board manufactured and designed by General Electric as part of the Mark VI Series used in GE Speedtronic Gas Turbine Control Systems. The Simplex Dynamic Pressure Transducer Input (DDPT) terminal board is a small, DIN-rail mountable acoustic terminal board. The board accommodates either Vibro-Meter® or Bently Nevada* transducers as two pressure transducers for monitoring pressure waves in gas turbine combustion chambers. Two cables are used to link it to the VAMA, and it is made to comply with Class 1, Division 2 environmental standards for hazardous gases.
INSTALLATION:
The DDPT board should be slid into the plastic holder after mounting it to the DIN rail. The 42-terminal permanent Euro-Block type terminal block should be connected with the pressure transducer wires. The most common type of wire is shielded twisted triplet #18 AWG. For the SCOM (ground) connection, ten screws are available. Connect the cables from the DDPT JR1 connector to the J3 connector on the front panel of the VAMA, and from the DDPT JR5 connector to the J5 connector on the lower half of the VME rack. The cables are secured by these locking connectors.
OPERATION:
VAMA supplies a ±24 V dc to the DDPT to power the pressure sensing equipment. VAMA/DDPT supports the following third-party vendor equipment:
The Vibro-Meter GSI configuration conditions a pico-coulomb output from a dynamic pressure transducer (Vibro-Meter CP216 or CP231) through a charge amplifier (Vibro-Meter IPC 704) with an output current equal to roughly 125 A/psi. To represent the dynamic pressure (gain represented in mV/psi) riding on top of a DC bias voltage of about +7 V dc, the GSI unit outputs an AC signal (nearly 2 V peak). GSI unit needs a +24 V DC power supply. The PCOM on the terminal board is not often utilized, and the power supply return for the GSI is grounded externally. PCOM needs to only be utilized in the absence of an external return ground.
The dynamic pressure transducer charge signal is converted from pico-coulombs to milli-volts, which represents the pressure in psi, by the Bently-Nevada 86517 interface module. The interface module generates an ac signal (about 1.2 V peak) on top of a -10 V dc negative dc bias voltage. A -24 V dc power supply is necessary for the Bently-Nevada unit.
CONFIGURATION:
Two jumpers set the bias voltage for the transducers, and two jumpers set the power return from the transducers:
• JPA and JPB apply either a +28 V bias or –28 V bias to the transducer signals.
• JP2 and JP4 connect the transducer power return to PCOM or to Open.
WOC has the largest stock of GE Speedtronic 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 the purpose of the Simplex Dynamic Pressure Transducer Input Terminal Board?
The Simplex Dynamic Pressure Transducer Input Terminal Board is designed to facilitate the connection and input signal processing for dynamic pressure transducers in various applications.
How does the terminal board function?
The terminal board acts as an interface between the dynamic pressure transducer and the system it is integrated with. It receives the signal from the transducer, processes it if necessary, and outputs it in a format suitable for further analysis or control.
What types of dynamic pressure transducers are compatible with this terminal board?
The terminal board is typically compatible with a range of dynamic pressure transducers, including those designed for measuring pressure fluctuations, dynamic pressure changes, or rapid pressure variations in fluid systems.
