User Manual

10
Getting Started
Before connecting and powering up the instrument, please review and go through the instructions in this chapter.
2.1 Input Power
The load has a selectable AC input that accepts line voltage input within:
Voltage Frequency
115 V (+/-10%) or 230 V (+/- 10%) 47 Hz 63 Hz
Table 2.1 Input Power Requirements
Use the line voltage selector switch in the back to switch between 110 V and 220 V operation.
Disconnect all cables including the power cord from the instrument when changing the instrument’s line
voltage. After changing the line voltage setting, ensure the instrument has fuses of the proper ratings and types for
the selected line voltage before applying line power.
2.2 Fuse Requirements
An AC input fuse is necessary when powering the instrument. Below is a table of the fuse required for all models operating
with either 110 VAC or 220 VAC input. See Table 2.2. The fuses are 5mm x 20mm High Energy Slow Blow type
(ceramic casing with sand ll).
Model Fuse Specication (110 VAC) Fuse Specication (220 VAC)
8542B 1.25 A, 250 V 500 mA, 250 V
8500B 1.25 A, 250 V 500 mA, 250 V
8502B 1.25 A, 250 V 500 mA, 250 V
8510B 2.5 A, 250 V 1.25 A, 250 V
8514B 2.5 A, 250 V 1.25 A, 250 V
Table 2.2 Fuse Ratings
2.2.1 Fuse Replacement
Follow the steps below to replace to check the fuse:
1. Locate the fuse box next to the AC input connector in the rear panel, see Figure 2.1.
2. With a small at blade screwdriver, insert into the fuse box slit to pull and slide out the fuse box as indicated below.
3. Check and replace fuse (if necessary) for the desired line voltage operation.
2.3 Input Connections
The main DC input terminal is a screw type binding post terminal located in the front panel, holes are included for
inserting wires, and the binding post also includes “banana jack” connections. Each connection allows for dierent