Badger Meter MC4000 Diagnostic Test Equipment - Manual (Page 19)

SUPPleMenTArY MeASUreMenTS
SUPPLEMENTARY MEASUREMENTS
Peak & Valley
While the MC4000 instrument is in operation, the maximum and minimum pressure measurements from both pressure
transducers P1 and P2 record automatically Pressing UP or DOWN writes the measurements to the display
Pressing UP displays the maximum values recorded by pressure sensors P1 and P2 The small arrows on the display points up,
indicating displayed readings are the maximums (see Figure 7 ) Pressing DOWN recalls the minimum values of P1 and P2 The
small arrow on the display points down, indicating displayed readings are the minimums (see Figure 7 )
P1 bar
124.32
P1-P2 bar
13.55
PW kW
38.4
P2 bar
86.56
P1 bar
124.32
P1-P2 bar
13.55
PW HP
38.4
P2 bar
24.12
US
Figure 7: Pressure display screens
Pressure Difference
The upper right quadrant of the display shows the pressure difference between pressure transducer P1 and P2 Stored
maximum and minimum readings show in the left side quadrants of the display (see Figure 7 )
Power
The lower right quadrant shows the instantaneous power reading in either HP or kW The pressure units are either psi or bar,
temperature readings are in either º F or º C
It is important that the pressure entries and scaling use consistent units of psi and º F for US measurements or bar and º C for
EU measurements Unpredictable results occur if the pressure and temperature units are mismatched
Power Calculations
The power calculation
Power (HP) =
1720
Pressure (psi) x Flow (gpm)
Power (kW) =
600
Pressure (bar) x Flow (lpm)
examples
US–When programmed in US units of pressure (psi) and flow (gpm), the power is calculated in HP
Pressure = 1450 4 psi
Flow = 52 84 gpm
Power (HP) =
1720
1450.4 (psi) x 52.84 (gpm)
= 44.56 HP
DIN–When programmed in DIN units of pressure (bar) and flow(lpm), the power is calculated in kW
Pressure = 100 bar
Flow = 200 lpm
Power (kW) =
600
100 (bar) x 200 (lpm)
= 33.33 kW
Page 19 Month 2014