Siemens SITRANS P ZD Series, Operating Instructions Manual

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SITRANS P, ZD series
42 A5E00249308-01
Technical description Operating instructions
The pressure transmitter is available in two versions: type A and type B (Figure 3, S.
57). The pressure transmitter can be configured using the three buttons behind the
glass window.
1.3 Operating instructions
The pressure transmitter can be subdivided into the following function blocks and in-
dividual functions:
Input
P – pressure sensor
U
ref
– reference voltage
A/D – analog-digital converter
Output
D/A – digital-analog converter
U/I – module with voltage-current converter and constant voltage generator
EMC – output stage with protective components
U
H
– power supply
I
A
– output current
Microcontroller
EEPROM – memory for all parameters
µ
C – all computing functions and monitoring
Operation and display
3 buttons – configure all parameters
LCD – for displaying measured values together with units
Green LED – for indicating normal operation
Red LED – for indicating limit violation and error signal