7ML19981CJ02
MiniRanger Plus – INSTRUCTION MANUAL
Page 55
P650 Offset Calibration
Typically used to calibrate the ultrasonic measurement, and its associated outputs, to a
known value.
•
fill the tank as much as permissible, without going into the near blanking.
•
monitor P650 until a stable reading is obtained.
•
Press
(to access change function).
•
scroll the value to the actual level, space or distance respective to the mode of
measurement (P001).
•
Press
(to validate entry). The MiniRanger Plus calculates the measurement
offset to be applied to the reading.
P651 Sound Velocity Calibration
Provides sound velocity compensation on an empty tank. This is typically required on an
application where the atmosphere in the tank is a homogenous gas or vapour other than
air.
•
empty the tank as much as permissible. Leave filled with normal vapour and normal
operating temperature.
•
monitor P651 until a stable reading is obtained.
•
Press
(to access change function).
•
scroll value to the actual level, space or distance respective to the mode of
measurement (P001).
•
Press
(to validate entry). The MiniRanger Plus calculates the new sound
velocity for measurement correction.
P661 Temp Fixed
For use with ST-25 Ultrason® transducers. As these transducers do not have an integral
temperature sensor, a nominal value representing the ambient temperature of the
transducer must be entered.
If the temperature between the transducer and the target varies, enter the average
temperature.
Values
0
1
1
10
2
100 (default)
3
1000
4
10,000
5
100,000
6
1,000,000
Values
Range: -50 to 150 °C
