Fluidwell D030-P Series, User Manual

Page: 39 / 44

FW-D030-P-MAN-EN-V0102_02
33
A
APPENDIX
Setup Configuration Examples
This appendix provides information and examples that might help you configure a number of
setup functions.
Calculating the K-factor
Calculating the K-factor for Totals
Below examples show ways to calculate the K-factor and corresponding decimals.
Flowmeter Settings
Flowmeter Pickup Signal Types Supported
Example: Calculating the K-factor for Totals (1)
Let us assume that the flowmeter generates 2.4813 pulses per liter and the selected
unit is m3 (see 11).
A cubic meter consists of 1000 parts of one liter which implies 2,481.3 pulses per m3.
So, the K-factor is 2,481.3.
• For "K-factor", 13 enter
2481300
• To set the decimal position enter
3
for "Decimal K-factor", 14.
Example: Calculating the K-factor for Totals (2)
Let us assume that the flowmeter generates 6.5231 pulses per gallon and the selected
measurement unit is gallons (see 11).
This makes the K-factor 2,481.3.
• For "K-factor", 13 enter
2481300
• To set the decimal position enter
3
for "Decimal K-factor", 14.
SETUP
SETUP
SETUP
SETUP
SETUP
SETUP
Table 1: Types of flowmeter pickup signal supported
Signal
type Explanation Resistance Freq./
mV Remark
NPN
NPN input pull-up 100k 6 kHz open collector
NPN-LP
NPN input with low pass
filter pull-up 100k 2.2 kHz open collector
less sensitive
REED
Reed-switch input pull-up 1M 1.2 kHz
REED-LP
Reed-switch input with
low pass filter pull-up 1M 120 Hz less sensitive
PNP
PNP input pull-down 100k 6 kHz
PNP-LP
PNP input with low pass
filter pull-down 100k 700 Hz less sensitive
NAMUR
Namur input pull-down 820 4 kHz external power required
COIL HI
High sensitive coil input — 20 mV p.t.p. sensitive to disturbances when not
properly shielded