Table of Contents
Advertisement
3.3
Calibration Procedures
3.3.1 Quick Calibration
Material Being
Measured
Conductive Materials
(Water-Based) see note #1
Insulating Liquids,
Organics, Oil, Plastics
Granular / Solid materials
above 50# / ft³
Granular / Solid materials
above 25-50# / ft³
Granular / Solid materials
less 20# / ft³
Note 1 - Most water based materials can be considered conductive, such as acids, bases,
salt solutions, water based slurries, and very wet granular materials. Carbon
black and powdered metals conduct even without water.
Note 2 - With conducting materials, if heavy build up is anticipated, calibration
adjustment can be turned to its clockwise limit.
All RMT Series controls with bare metal sensing elements are
factory-set to switch in all water-based conducting materials.
NO calibration adjustment is needed when measuring
conductive media. .
Quick Calibration method is ONLY recommended for horizontally
mounted, bare metal, Cote-Shield sensing elements. In all cases
it is necessary to have material level below the probe (sensing
element in air).
Red LED OFF = normal condition
1. Turn the Differential adjustment to the full counter clockwise
position.
2. For either High Level Fail Safe (HLFS) or Low Level
Fail Safe (LLFS) begin with the sensing element totally
uncovered.
3. Starting with SetPoint adjustor in full counter clockwise
(ccw) position, slowly turn clockwise (cw) until switch
changes state. [Red LED will turn OFF in HLFS and turn
ON in LLFS].
4. Note position of SetPoint adjustor. Turn it clockwise (cw)
from this point the additional number of turns indicated in
Quick Calibration Table 3-1.
Calibration is Complete
Mode #7
(Standard Sensitivity
15 Turns (Note 2)
1/2 Turn
1/2 Turn
1/2 Turn
Use High Sensitivity Mode
#8
Table 3-1
Quick Calibration Chart
17
Calibration
Mode # 8
(High Sensitivity)
20 Turns
2 Turns
2 Turns
1 Turn
3/4 Turn
Advertisement
Table of Contents
