Tokyo Keiki MRF-10, Руководство по установке и эксплуатации

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5 Setup
5.1 Basic Parameters
Following parameters must be inputted to measure properly.
Tank Dimensions G
(Offset Distance from Hand-dipping point to Reference Point [MRF-10’s face].
）
R (Distance from Hand-dipping point to level zero.)
C (Measuring range that is lower than level zero.)
H (Dead band)
Fig. 5.1-1 Basic Parameters for Measurement
5.2 Negative level measurement
Value ”C” defines below zero level. When “C” values are set, the Hart communicating
PC will show negative values, if the level is below level zero.
[Note] If 4mA corresponds to Lv 0m, analog output will be maintained at 4mA even if
measurement values fall below Lv 0m.
Hand-dipping Point
Reference Point
Ullage
(Distance)
Level
Level Zero
Bottom
Measuring Range
Surface
H
Dead Band
R
G
C
5- 1