Connection Diagram - Pfeiffer Vacuum TPR 280 Operating Instructions Manual

Damage sustained as a result of improper connection
Improper connection, incorrect polarity or impermissible supply voltage will damage the gauge.
► Always connect the supply earth (Pin 5) with the earth for the supply unit.
► Always connect the shielding (Pin 6) with the earth for the supply unit.
Required tools
● Crosshead screwdriver
● Torque wrench (≤ 0.2 Nm)
Required materials
● Measurement cable for a Pfeiffer vacuum total pressure measuring and control unit from the
tiveLine accessories range
● Self-fabricated measurement cable for an evaluation unit provided by the customer
● Hirschmann cable socket
Establishing the electric connection
1. Connect the measurement cable to the gauge.
2. Tighten the locking screw on the Hirschmann cable socket.
– Tightening torque: ≤ 0.2 Nm
3. Connect the gauge to a Pfeiffer Vacuum total pressure measuring and control unit, or to an evalu-
ation unit provided by the customer.
1MΩ
Fig. 3:

Connection diagram

1 Identification
2 Measuring signal
3 Signal earth
NOTICE
2
4.7Ω
3
4.7Ω
1
Ident
4
5
6
4 Supply
5 Supply earth (GND)
6 Screening, shielding
Installation
Ac-
+
–
+
–
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