BUSCH VacTest - Bake-out and Communication; Bake-out Procedures and Safety Precautions; RS485 Communication Setup

6 | Communication
12 / 24 Instruction Manual VACTEST DCC 400_EN_en
5.4 Bake-out
NOTICE
Excessive bake-out temperature.
Risk of damage to the electronics!
• Baking temperatures up to 160 °C, always switch off the power supply.
• Baking temperatures higher than 160 °C may damage the sensor head and electron-
ics.
• The vacuum flange and the sensor must not be thermally isolated. During baking it
needs to be cooled by natural convection of ambient air.
6 Communication
NOTE
The Busch communication protocol is available separately on request.
Ask your Busch representative to get the document.
6.1 Setting RS485 Address
The transmitter is equipped with a serial RS485 interface.
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3
5
7
9
11
13
15
RS485
Stat Adj SP1 SP2
RS485 / 0-10V / Relay
1
8
159
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3
5
7
9
11
13
15
The communication is effected via serial interface RS485:
• Remove the rubber cap over the address selector switch.
• Set the address selector switch to a value between 1 and 16 using a small screwdriver.
• Reinsert the rubber cap.
NOTE
The analog output signal 0-10V is simultaneously available with RS485 !