IET Labs, Inc. 1864-1644, User And Service Manual

Page: 14 / 46

INTRODUCTION
1864-1644 Positive Polarity Megohmmeter
4
Figure 1-2. Type 1864-1644 rear-panel controls and connectors
Figure 1-2
Reference Name Type Function
1
Power Input
IEC Standard
Power input
receptacle.
Power input and circuit protection
2 Output Phone jack Provides a dc voltage output for recorder
operation
3 Line Voltage 2-position slide
switch Connects wiring of power transformer for
either 100 to 125 V or 200 to 250 V input
4 1/8 Amp Integral fuse
holder Holder for 5 x 20 mm
For 100 to 125 V operation: 1/4 A fuse
For 200 to 250 V operation: 1/8 A fuse
Table 1.2.
1
2
3
4