KRAL BEM 500 - Operation; Abbreviations, Units and Signals

10 Operation
10.1 Abbreviations, units and signals
10 Operation
10.1 Abbreviations, units and signals
10.1.1 Abbreviations
Abbreviation Meaning
Q Current consumption QA-QB
Q
nom
Nominal flow rate
T1 Total consumption since last reset (without password protection)
T2 Total consumption since last reset (with password protection)
QA Current flow flowmeterA (supply line)
QB Current flow flowmeterB (return line)
Temp. Temperature
TA1 Total flow flowmeter A since last reset (without password protection)
TA2 Total flow flowmeter A since last reset (with password protection)
TB1 Total flow flowmeterB since last reset (without password protection)
TB2 Total flow flowmeterB since last reset (with password protection)
Rho Density
f Frequency
K K-factor
10.1.2 Units
In order to make extensive conversions by the user superfluous, various country-specific units and
quantities of a unit are available for the display.
Abbreviation Meaning
Volume ml, l, galUS, galUK, m
3
Mass g, kg, t, lb
Flow, volumetric ml/s, ml/min, l/s, l/min, l/h, galUS/s, galUS/min, galUS/h, galUK/s, galUK/min,
galUK/h, m
3
/min, m
3
/h
Flow, mass-specific g/s, g/min, kg/s, kg/min, kg/h, t/min, t/h, lb/s, lb/min, lb/h
Temperature °C, °F
Density Kg/m
3
, lb/galUS, lb/galUK
Frequency Hz
K-factor P/l
10.1.3 Pulse signals
Pulse inputs for pick ups with the following functions is available:
o NPN
o PNP
o Namur
Either NPN or PNP can be selected for push-pull pick ups, see 2.12Setting Function Pick up.
22
OIE 12en-GB Edition 2020-03
Operating instructions