BRUEL & KJAER VIBROCONTROL 8000 - Temperature Channels; 20.6.1 Transducer Power; 20.7 Velocity

© Brüel & Kjaer Vibro ● S1079330.002 / V04 ● █ Page 133 of 188
Technical alterations reserved!
Brüel & Kjaer Vibro │ Instruction
VC-8000 MPS
Content
EN
20.6 Temperature Channels
Use this view to configure temperature channels.
20.6.1 Transducer Power
Select whether the connected sensor is a Thermocouple,
RTD (2, 3, or 4 wire) or Process Variable transmitter. The
TMM will switch the inputs according to the transducer power
to provide the correct sensor excitation.
Transducer Power Description
2-Wire RTD
3-Wire RTD
4-Wire RTD
Provides power for the selected RTD.
Thermocouple (Isolated)
For isolated thermocouple sensors. This setting includes a
bias voltage used for fault detection.
Grounded Tip Thermocouple
For grounded tip thermocouples.
This option turns off the bias voltage (fault detection) as it
can interfere with temperature readings from grounded tip
sensors.
Set Fault Mode to Latching to prevent repeating faults from
saturating the event list.
Process Variable
This setting allows the TMM to read 4-20 mA through a 68-
ohm resistor.
Wiring mistakes will damage the TMM. Please use a UMM
Process Variable channel instead. It is a more robust
solution.
IMPORTANT
Brüel & Kjær Vibro recommends isolated tip thermocouples.
Isolated tip thermocouples have fault detection (bias voltage); Grounded tip thermocouples do
not. Set the Fault Mode to “Latching” when using grounded tip thermocouples.
20.7 Velocity
Use the Channels tab and the Summary view to configure channels. Select the Channel Type and
then select the Transducer.
Change to the Customize Transducer view to verify the correct Scale Factor, Units, and Transducer
Power setting.
The OK limits will be set according to the transducer you selected. They can be modified if needed.
Figure
20-7) Temperature Channels