23
502-3000 Series Ztron
TM
Point Level Control
Calibration
SECTION 4
CALIBRATION
This section contains the calibration information for the Ztron
Level Control.
CAUTION
Do not open the enclosure cover or make/break
any electrical connections without first discon-
necting electrical power at the source. Ensure
that the wiring, electrical fittings and conduit
connections conform to the electrical codes for
the specific location and hazard level.
The 502-3000 Ztron level control is not approved
for use in a hazardous location.
4.1 Calibration in
Conducting Material
All Ztron controls (except for model 502-3000-918) are factory
set to switch in water-based conducting materials (setpoint
adjustment is set to full clockwise position). No calibration
adjustment is necessary.
If, over time, a calibration adjustment is required in a
conducting material, use a small screwdriver to turn the
setpoint adjustment to the full clockwise (CW) position. No
other adjustment is necessary.
See section 4.3 for calibration of 502-3000-918 controls.
4.2 Calibration in
Insulating Material
(Horizontal Mount)
Use the following procedure:
a)
Be sure the material level is well below the sensing
element. See Figure 4-1.
