Preiffer PKR 251, Руководство по эксплуатации

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5.3 Establishing electric connection
DANGER
Danger to life due to dangerous contact voltage
Voltages above 30 V (AC) or 60 V (DC) are considered dangerous in accordance with EN 61010. If
you come into contact with dangerous contact voltage, this can result in injury through electric shocks
or even death.
► Only connect the product to devices which meet the following criteria:
● Requirements of the earthed protective extra-low voltage (PELV)
● Limited power source (LPS) Class 2
► Secure the line to the product.
– Pfeiffer Vacuum measuring and control equipment complies with this requirement.
NOTICE
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
Ac-
tiveLine accessories
● 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.
10Ω
Ident
2
3
1
4
5
6
V
–
+
–
+
10Ω
10kΩ
Fig. 5: Connection diagram
1 Identification 4 Supply
2 Measuring signal 5 Supply ground (GND)
3 Signal ground 6 Screening
Installation
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