Fluidwell E018 User Manual

E119-P
FW_E119-P_M_v0301-02_EN Page 29
4 FLOWMETER
4.1 SIGNAL
Selects the type of flowmeter pickup / signal. The unit can process several
types of input signal. The settings with LP are used to apply a built-in low-
pass filter. Also see Section 6.4.10: Terminals S1-S3: Flowmeter input[»52]
for more information.
The selections “Active pulse input” offer a pulse detection level of about
50% of the selected active pulse voltage.
FLOWMETER SELECTION CHARACTERISTICS
TYPE OF SIGNAL EXPLANATION RESISTANCE FREQ / mVpp REMARKS
NPN NPN input 100kΩ pull-up max.6kHz Open collector
NPN - LP
NPN input
with low pass filter
100kΩ pull-up max.2.2kHz
Open collector
Less sensitive
REED Reed-switch input 1MΩ pull-up max.1.2kHz
REED - LP
Reed-switch input
with low pass filter
1MΩ pull-up max.120Hz Less sensitive
PNP PNP input 51kΩ pull-down max.6kHz
PNP - LP
PNP input
with low pass filter
51kΩ pull-down max.700Hz Less sensitive
NAMUR NAMUR input 820Ω pull-down max.4kHz
External sensor
power required
COIL HI
Coil input
high sensitivity
-
min.20mVpp
Sensitive for
interference!
Type ZF min.10mVpp
Type ZG min.5mVpp
COIL LO
Coil input
low sensitivity
- min.90mVpp Normal sensitivity
8-1 DC
Active pulse input
detection level
3.9Vdc
3k9 Ω pull-down max.10kHz
External power
required
24 DC
Active pulse input
detection level 11Vdc
3k Ω pull-down max.10kHz
External power
required
4.2 UNITS
This setting activates the automatic unit conversion function which converts
the selected flowmeter unit to measurement units for Total and Flowrate.
The following can be selected:
● Auto-vol: Automatic unit conversion is enabled for volumetric flow.
Flowmeter, Total and Flowrate show volumetric measurement units.
● Auto-mas: Automatic unit conversion is enabled for mass flow.
Flowmeter, Total and Flowrate show mass measurement units.
● Hand: Automatic unit conversion is disabled. Total and Flowrate show all
available units and should be configured individually.
When Hand is selected, menu items 4.3: FLOWMETER > UNIT and
4.4: FLOWMETER > K-FACTOR disappear and the correct K-factors must be
entered at
SETUP
1.3: TOTAL > K-FACTOR and 2.4: FLOWRATE > K-FACTOR.
● To make use of automatic unit conversion, Total and Flowrate must
be configured in a convertible unit. If this is not possible, automatic
unit conversion cannot be used and Hand should be chosen.
● If the type of measurement unit is changed
SETUP
1.1: TOTAL > UNIT and
2.1: FLOWRATE > UNIT will automatically change back to their default
setting.
4.3 UNIT
Determines the measurement unit for the flowmeter. When automatic unit
conversion is used, the units for Total and Flowrate are derived from this
setting.
Changing the flowmeter unit will not change the amount displayed for Total
and Accumulated Total.

Fluidwell E018 Specifications

General

Brand	Fluidwell
Model	E018
Category	Measuring Instruments
Language	English