Varian 947 Instruction Manual - Draf
1
Service Pendant Hand-Held Terminal
DRAF
T 2/4/02
The Service Pendant
The service pendant is used to set up and display parameters for the Model 947, 948 and
960 Leak Detectors. It is a hand-held terminal with a 40-key keypad and a 20 character
by 4 line backlit LCD display (see Figure 1). The service pendant is stored in the turret and
connects to the leak detector via a six-foot cable that connects to an RS-232 serial port (J1, a
9-pin D sub connector) located inside the lockable turret.
The service pendant is used to monitor and set up:
❑
Reject set points
❑
Crossover pressures
❑
Auto sequence parameters
❑
System setup parameters (such as the value of the calibrated leak)
❑
Ion Source parameters (should only be performed by qualified service personnel)
When the pendant is powered by the 947, 948 or 960, the display indicates the model of
the leak detector to which it is connected.
Refer to Model 947, Model 948 Operations Manual or the Model 960 Operations Manual
for further information on the operation of the leak detector.
Figure 1 Service Pendant