
INTRODUCTION
1864-1644 Positive Polarity Megohmmeter
3
Figure 1.1
Reference
Name
Type
Function
1
POWER
OFF
2-position toggle
switch
Turn power on and off.
2
Meter
4-in. meter with
plastic cover
Indicates the value to be
multiplies by the multiplier
switch.
3
SET
∞
HIGHEST RANGE
Knob-rotated
control
Adjusts high end of meter
scale on highest resistance
range to compensate for offset
current.
4
SET
∞
Knob-rotated
control
Adjusts high end of meter
scale on highest resistance
range to compensate for offset
voltage in the voltmeter.
5
GUARD
Insulated binding
post
For guarded measurements. It
can accept a shorting link to
the ground post.
6
Ground
Uninsulated
binding post
Grounds the Unknown- or
guard. Contains a shorting
link.
7
UNKNOWN -
Insulated binding
post
Connects the - side of the
unknown to the megohmmeter.
8
U
Insulated binding
post
Connects the + side of the
unknown to the megohmmeter.
9
DANGER
Indicated light
shaded red
Glows red when the function
switch is in the CHARGE or
MEASURE position.
10
Multiplier
8-position rotary
switch
Selects resistance range.
11
MEASURE
CHARGE
DISCHARGE
3-position toggle
switch
Selects the operating position
applied to the unknown.
12
TEST VOLTAGE
3 rotary switches:
10-position
9-position
2-position
Select voltage in 1-V steps
from 10 to 109 V and in 100-V
steps from 100 to 1090 V.
Содержание 1864-1644
Страница 10: ...CONTENTS FIGURES AND TABLES 1864 1644 Positive Polarity Megohmmeter vi This page intentionally left blank...
Страница 16: ...INTRODUCTION 1864 1644 Positive Polarity Megohmmeter 6 This page intentionally left blank...
Страница 22: ...OPERATION 1864 1644 Positive Polarity Megohmmeter 12 This page intentionally left blank...
Страница 28: ...APPLICATIONS 1864 1644 Positive Polarity Megohmmeter 18 This page intentionally left blank...
Страница 38: ...SERVICE AND MAINTENANCE 1864 1644 Positive Polarity Megohmmeter 28 This page intentionally left blank...
Страница 39: ...1864 1644 Positive Polarity Megohmmeter 29 PARTS LIST AND DIAGRAMS Chapter 7 PARTS LISTS AND DIAGRAMS...
Страница 40: ...1864 1644 Positive Polarity Megohmmeter 30 PARTS LIST AND DIAGRAMS...
Страница 43: ...1864 1644 Positive Polarity Megohmmeter 33 PARTS LIST AND DIAGRAMS Figure 7 4 Type 1864 switching diagram...
Страница 44: ...1864 1644 Positive Polarity Megohmmeter 34 PARTS LIST AND DIAGRAMS Figure 7 5 Type 1864 schematic diagram...
Страница 45: ...1864 1644 Positive Polarity Megohmmeter 35 PARTS LIST AND DIAGRAMS Figure 7 6 Complete cabinet assembly...
Страница 46: ...1864 1644 Positive Polarity Megohmmeter 36 PARTS LIST AND DIAGRAMS...