Meter Readings
Table 4 lists the ranges of paint resistivity that work
best for specific Ransburg applicators.
To obtain M
W
- CM from the resistance in M
W
from the meter, multiply by 132.
NEVER soak the paint probe. There
is no solvent seal at the point where the
handle screws into the body of the probe.
If solvent is allowed to enter at this point
or where the cable enters at the top of the
handle, the interior wiring will deteriorate
and have to be replaced.
M
W
- CM = M
W
reading X 132
(Ref. ASTM D5682)
Maintenance
The test probe MUST be cleaned IMMEDIATELY
after each use. Use a suitable solvent and clean
cloth to thoroughly clean the probe assembly.
1. Remove the probe sleeve and clean it inside
and out, removing all paint residues (it may
be soaked while probe is cleaned).
2. Thoroughly clean the outside of the probe with
the cloth and solvent.
3. Place the cleaned sleeve back on the probe.
TABLE 4 - PAINT RESISTIVITY
RANGES*
Applicator
Paint Resistivity
Range
Rotary Atomizers
0.05 M
W
to 1.0M
W
#2 Process Handgun
0.1 M
W
to 1.0M
W
Handguns & Automatic Guns 0.1 M
W
to Infinity
* Use this table as a guideline. Usually a trial for resistance
above listed values is recommended. When resistance
is below listed values, electrostatic effect will be reduced
due to a higher current draw to ground. To spray this
material may require other means of increasing distance
to ground such as adding coiled fluid tubes.
C A U T I O N
!
HIGH VOLTAGE
MEASUREMENT KIT
High Voltage Measurement
The Ransburg
High Voltage Measurement Kit
using the multi-function meter is designed to pro-
vide measurement of high voltage DC potential for
all electrostatic applicators to 200kV. Having an
accurate measurement of output voltage from an
applicator is very important when trouble-shooting
problems with an installation. The reading from this
device indicates whether the applicator and power
supply are operating correctly. This kit comes with
the following accessories:
1. A high voltage probe assembly to measure
DC voltage at a bell, disk or gun.
2. Five (5) feet of 3/8 inch diameter high voltage
cable to measure DC voltage from power
supplies of 90kV and higher.
3. Five (5) feet of 5/16 inch diameter high volt-
age cable to measure DC voltage from power
supplies producing less than 90kV.
Ensure that meter's scale is properly
set for the function in which it is being
used. Damage to equipment may result if
improperly set.
Operation
DO NOT exceed 30 seconds of continu-
ous use of the high voltage probe. The probe
is designed for instant readings
C A U T I O N
!
C A U T I O N
!
W A R N I N G
!
The ground clip
MUST
be connected to
a proven true earth ground
BEFORE
any
contact is made between the probe assembly
and the asembly being tested. All personnel
in the hazard (booth) area
MUST
be
grounded. See Ransburg bulletin "Personnel
Grounding".
Test Equipment - Introduction, Operation & Maintenance
TE-98-01.7
14
