Magnetrol E3 Modulevel - Wet Calibration Guidelines; Level Measurement Calibration Steps; Interface Measurement Calibration Steps

12
WET CALIBRATION – Guidelines
LEVEL MEASUREMENT: 100 % level cannot be reached
INTERFACE MEASUREMENT: using the process liquid
air/gases
a
ir/gases
set 4 mA
upper liquid
interface
set 4 mA
min 50 mm (2")
lower liquid
Calibrate 4 mA/0 % level
Bring interface at lowest level
Press Enter = start calibration.
Press Up + Enter = lock 4 mA value
Calibrate 4 mA/0 % level
Bring level lower than displacer (free hanging) or to the
lowest level.
Press Enter = start calibration.
Press Up + Enter = lock 4 mA value
Calibrate 20 mA/100 % level:
Bring level to the highest possible position
Attach a mA meter to the test points
A
djust the loop current via Up and Down
air/gases
upper liquid
interface
set 20 mA
lower liquid
Calibrate 20 mA/100 % level:
Bring interface at highest level
Press Enter = start calibration
Press Up + Enter = lock 20 mA value
process liquid
50 % = 12 mA
100 % = 20 mA
Eg. 50 % level reads 10 mA. Toggle with the Up button, till
the mA meter reads
(20 mA - 4 mA) x 50 % + 4 mA = 12 mA
Important: Displacer must remain always immerged for min. 50 mm (2") in the upper liquid.