Keysight 11683A, Руководство по эксплуатации и обслуживанию

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3 Operating Instructions
28 Keysight 11683A Operating and Service Manual
Operation of the Controls
Operation of the controls of the 11683A is explained in Figure 3-1 .
Figure 3-1 Front and rear panel features (illustrations for indication only)
1 LINE switch . Controls primary power. Illuminated when instrument is ON.
2 RANGE switch . Equivalent to compatible Power Meter's Range Switch; produces a full scale
Power Meter reading when 11683A and Power Meter Range switches are set to same scale.
3 FUNCTION switch . When the switch is set to CALIBRATE an output dependent on the RANGE
switch setting is coupled to the Power Meter. In STANDBY mode the output is grounded.
4 POWER METER connector . Connects the output to, and control signals from, compatible
Power Meter via Power Sensor Cable.
5 POLARITY switch . An upscale reading is obtained on the Power Meter when the switch is set to
NORMAL. The REVERSE setting produces a down ­ scale reading.
6 D.C. REFERENCE OUTPUT connector . DC reference voltage output from RANGE
Switch. Load resistance must be ≥ 100 M
Ω
for proper operation of the 11683A.
7 Power Module Assembly .
8 Receptacle . Couples transformer primary to line voltage via power cable.
9 Line Voltage Selection Card . Matches transformer primary to line voltage. Refer to Figure 2-1 .
10 Fuse . A 1/8 A fuse is used at 100/120 Vac; 1/16 A fuse at 230/240 Vac.
11 Fuse Pull Handle . Mechanical interlock; fuse must be removed before extraction of Line Voltage
Selection Card.
12 Window . Safety interlock; fuse cannot be removed while power cable is coupled to Power
Module Receptacle.