VAF instruments PEM2, Technical Manual

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2. SYSTEM DESCRIPTION
2.1 PEM2 TOUCH SCREEN
The PEM2 touch screen is able to calculate several output data.
Functions, which can be performed with this PEM2 touch screen are:

Measurement and display of torque, shaft speed, power and thrust (optional).

Calculation of average shaft power, shaft speed and torque during the last 1, 4 and 24 hours.

Calculation of total energy and total revolutions including reset.

Calculation of average thrust/quotient when thrust measurement (optional) is provided.

Displaying of parameters.
The PEM2 touch screen can be installed in a control cabinet or control panel.
Remark:
Optional 4-20 mA analogue output can be integrated in the stator control box near the T-
Sense
®
torque sensor. Please read section 6.5 in TIB-661 for detailed information or read
TIB-664 section 6.5 in case of TT-Sense
®
torque/thrust sensor.
2.2 SYSTEM SECURITY
Besides checking the status of the torque measurement system the PEM2 system also checks itself
continuously for program and configuration data integrity, normal program flow and power supply
conditions. Alarm messages will be logged in a dedicated alarm screen.