KROHNE VFM 1091 User Manual

Page 18

Fct. 1.2.1 FLOW UNITS for display
Select a unit in which flow rate is to be displayed from the following list
of the available units, depending on programming of Fct.1.1.1 MEAS.
INST.

For volumetric flow -

• m3/hr

• m3/min

• m3/Sec

• Litre/hr

• Litre/min

• Litre/Sec

• ft

/hr

• ft

/min

• ft

/Sec

• cft/hr

• cft/min

• cft/Sec

• cuft/hr

• cuft/min • cuftSec

• US Gal/hr

• US Gal/min

• US Gal/Sec

• UK Gal/hr

• UK Gal/min

• UK Gal/Sec

• % MAX. FLOW

for normalized volumetric flow -
• Norm.m3/hr

• Norm. m3/min

• Norm. m3/Sec

• Norm.L/hr

• Norm.L/min

• Norm.L/Sec

• Sft3/hr

• Sft3/min

• Sft3/Sec

• Scft/hr

• Scft/min

• Scft/Sec

• %MAX.FLOW

or mass flow -
• kg/hr

• kg/min

• kg/Sec

• T/hr

• T/min

• T/Sec

• Lb/hr

• Lb/min

• Lb/Sec

• % MAX.FLOW

Note that the list is same as for Fct. 1.1.2 except for an additional unit %
MAX. FLOW (to display flow rate as a percentage of max flow).

HART: GOM 1,3,2

Fct.1.2.2 TOTAL UNITS totalizes unit for display. Totalized flow may
be displayed in one of the following units.

For volumetric flow -
• m3

• Litre

• ft3

• cft

• Cuft

• US Gal

• UK Gal NO DISPLAY
For normalized volumetric flow –
• Norm. m3

• Norm. L

• sft3

• scft

• NO DISPLAY

for mass flow –

• kg

• T

• Lb

• NO DISPLAY

Use NO DISPLAY to exclude totaliser from display cycle.

Fct.. 1.2.3 VELO.UNITS velocity unit for display
You can choose from

• m/Sec

• ft/Sec

• NO DISPLAY

Select NO DISPLAY if you don't want this parameter to be displayed.

Fct. 1.2.4 FREQ UNITS frequency unit for displays
You can choose from

• Hz

• kHz

• NO DISPLAY

Select NO DISPLAY if you don't want this parameter to be
displayed.

Fct. 1.2.5 ERROR MSG. display of error messages.

If you want error messages to appear between display of
parameters in normal measuring mode, choose YES otherwise
select NO.

Fct. 1.2.6 CYCLE DISP. Cyclic/non-cyclic display.

YES. means display will cycle automatically. This means a
measured parameter is shown in selected units for about 6
seconds and then the next parameter in the display cycle is shown
for 6 seconds and so on. NO (non-cyclic display) means the
parameter is continuously shown on the display (to see other
parameters or to change setting use

the key). You may see

error messages in between changeover from one parameter to
next if error(s) are present and Fct. 1.2.5 ERROR MSG. is YES

Fct. 1.3.0 PULSE O/P

This submenu groups Pulse output related functions.

Fct. 1.3.1 FUNCTION P Pulse output

Choose YES to make Pulse output active as per

functions Fct. 1.3.2 to Fct. 1.3.3.NO makes Pulse

output inactive (0 Hz).

Fct. 1.3.2 RANGE P Pulse output range value

Enter a value here for the number of pulses required per unit
volume/mass. This must always be set after max flow value Fct.
1.1.2. is set.

Example –

For a value of 0.1 Kg, 10 pulses per Kg = 1 pulse per 0.1 Kg.
Pulse output programming is independent of max. flow. The
various options of units for are given below. RANGE P are given
below.

for volumetric flow –
• PULSE/m3

• PULS/litre

• PULS/ft3

• PULS/cft

• PULS/cuft

• PULS/US.Gal

• PULS/UK.Gal

for normalized volumetric flow –

• PUL./Norm.m3

• PULS/Norm.L •

PULS/Sft3

• PULS/Scft

for mass flow –

• PULS/kg

• PULS/t

• PULS/Lb

LIMITS - (0 TO 0.5 Hz) / Q

100%

pulse/unit volume or mass,

where Q

100%

is flowrate in Volume or Mass units per second