Biddle MEGGER - Page 28

Capacitance Discharge for heavy duty type: The spring type
switch, Figure 3, is normally in the DISCHARGE position.
When making a test, depress the switch head. When test is
completed, release switch to DISCHARGE position. With the
rotary type switch, simply turn to TEST or DISCHARGE.
Combination Switches for “Meg” type. Follow instructions
as in Figures 32, 33 and 34.
FIGURE 32. Megohm Scale with
Divide-by-10 and Ohm Scale (The
AR Switch).
FIGURE 33. Megohm Scale with
Divide-by-10 and Discharge Switch
(The AK Switch).
FIGURE 34. Megohm Scale, Ohm
Scale and Discharge Switch (The RK
Switch).
Checking the Ohmmeter
Checking the Infinity and Zero positions, as per items 3 and 4 in
General Directions, page 1, will suffice for daily use of a “Megger”
instrument. When instruments are correct at these values, they are
usually correct throughout the range.
NOTE: Figs. 32, 33, 34 show switch version used on "Meg" type instruments now
discontinued.
[26]