E115-P
User Manual
FW_E115-P_M_v0301-01_EN
Page 25
5
DISPLAY
5.6 BARGRAPH
The unit has a speedometer/bar graph around the edge of the display that
gives a quick impression of the actual flowrate. The following can be
selected:
●
Enable
: the bar graph is switched on.
●
Disable
: the bar graph is switched off.
●
Absolute
: according to the absolute value of the differential flowrate
(negative flow will be displayed as positive flow).
●
Rate A
: according to the calculated flowrate for flow A (forward).
●
Rate B
: according to the calculated flowrate for flow B (reverse).
5.7 RATESPAN
Sets the range of the speedometer. The display shows 0 – 100 and has 20
blocks. Therefore, each block represents 5% of the total range.
The number of decimals displayed depends on
2.3: FLOWRATE A > DECIMALS
.
5.5.6
MENU 6: FLOWMETER
To simplify the configuration of the Flowmeter, Total and Flowrate settings, the E115-P has an
automatic unit conversion feature. To use this feature, you only have to enter the average K-factor
and the related measurement unit.
Advantages/features
:
● The same K‑factor calculation is used for Total and Flowrate.
● All configuration is done in the Flowmeter menu.
The measurement units can be set for volume or mass units. Refer to the test/calibration certificate
provided with your flowmeter. The automatic unit conversion feature can be set to ‘Hand’, allowing
for independent configuration of total and flowrate, for example, when:
● measurement units are not supported, i.e. ‘revolutions’, or
● volume and mass units are used simultaneously.
Use the following procedure to set up the automatic unit conversion:
1.
6.1: FLOWMETER > SIGNAL A
: Select the correct type of flowmeter signal.
2.
6.6: FLOWMETER > UNITS
:
Select the type of measurement unit (volume or mass) shown on the
certificate.
3.
6.7: FLOWMETER > UNIT
:
Select the measuring unit shown on the certificate.
4.
6.8: FLOWMETER > K-FACTOR A
:
Enter the (average) K-factor shown on the certificate.
5.
1.1: TOTAL A > UNIT
:
Select the desired measuring units for (accumulated) Total.
6.
2.1: FLOWRATE A > UNIT
:
Select the desired measuring units for Flowrate.
For a detailed description and tutorials on the automatic unit conversion feature, refer to our website
(or ask your supplier).
Example
: How to manually calculate the K-factor for total or flowrate:
● The Flowmeter generates 65.231 pulses per US gallon.
● The required measurement unit is cubic feet (ft
3
).
● A cubic foot = 7.48052 gallons.
Formula
Pulse per US gallon x cubic foot (in gallons) =
K-factor
65.231 x 7.48052 =
487.9618
For this example, enter
487.9618
as the K-factor for total or flowrate.
