GE HEALTHCARE E-PSMP, Technical Manual

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Pressure Modules, E-P, E-PP, E-PT
5 - 3
2062973-004
The E-PT module uses the constant current method. The NTC resistor is connected in series
with a normal resistor and a constant voltage is applied across them. The temperature
dependent voltage can be detected at the junction of the resistors, thus producing the
temperature signal from the patient. The signal is amplified by analog amplifiers and further
processed by digital electronics.
1.3 Main components
The E-PT module consists of the following main parts:
•
STP Main Assembly
•
Connector for temperature probes; temperature channels T3 and T4.
•
Connector for an invasive blood pressure sensor; invasive blood pressure channel P3/P7.
•
Key for pressure zeroing.
The E-P module consists of the following main parts:
•
STP Main Assembly
•
Connector for an invasive blood pressure sensor; invasive blood pressure channel P3/P7.
•
Key for pressure zeroing.
The E-PP module consists of the following main parts:
•
STP Main Assembly
•
Connectors for an invasive blood pressure sensors; invasive blood pressure channels P5
and P6.
•
Keys for pressure zeroing.
Communication between the module and the monitor is established through RS485 serial
interface.
The power supply voltages to the module are generated in the power supply section of the
monitor’s Central Unit. All electrical connections between the module and the module bus are
established via 25-pin D-type connector at the back of the module.