![background image](http://html1.mh-extra.com/html/omega/fp90-series/fp90-series_user-manual_4083252013.webp)
page 11
OMEGA
FP90 Series Flow Transmitter Instructions
All Relay settings repeat for Relay 2.
Calibrate Menu for FP90-2
Display
(Factory settings shown)
Description
Flow
Units:
GPM >
Flow
K-Factor:
60.00 >
Total
Units:
Gallons >
Total
K-Factor
60 >
Loop Range: GPM
000.00
o
100.00
>
Relay1
Mode:
Low >
Relay1 Setpnt:
10.0
GPM >
Relay1 Hys:
5.0
GPM >
Relay1 Volume:
100.00
Gallons >
Relay1 PlsWdth:
0.1
Seconds >
Last
CAL:
6-16-09
The rst two characters set the Flow Rate units of measure. They have no effect on calculations. They
may be any alpha or numeric character, upper or lower case.
The last character sets the Flow rate Timebase. Select S (seconds), M (minutes), H (hours) or D (days).
This setting tells the transmitter how to convert the input frequency from the ow sensor into a ow
rate. The K-factor is unique to the sensor model and to the pipe size and schedule. Refer to data in the
sensor manual for the correct value. Limits: 0.0001 to 99999. (The K-factor cannot be set to 0.)
This setting identi es the Totalizer units. It has no effect on any calculation. It serves as a label only.
Each character can be any alpha or numeric selection, upper or lower case.
This setting tells the transmitter how to convert the input frequency from the ow sensor into a
volumetric total. It also is used as the basis for the volumetric Pulse mode.
The setting is usually the same as the Flow K-factor, or different by x10 or x100. Limits: 0.0001 to
99999. (The K-factor cannot be set to 0.)
Select the minimum and maximum values for the 4-20 mA Current loop output. The FP90 will allow any
values from 0.0000 to 99999.
Select the desired mode of operation for relay 1. Options available are High, Low or volumetric Pulse.
The signal may be disabled if not in use.
In Low or High Mode, the relay output will be activated when the Flow rate reaches this value. Be sure
to modify this setting if you change the Flow Units.
Relay 1 will be deactivated at Setpoint ± Hysteresis, depending on High or Low Setpoint selection.
(See details on page 6.)
In Pulse mode, the relay output will generate one pulse when this volume of ow passes the sensor.
(The measurement is based on the Total K-factor.) The FP90 will allow any value from 0.0000 to
99999.
In Pulse mode, this setting de nes the duration of the relay pulse. The FP90 allows any value from 0.1
seconds to 999.9 seconds.
Use this “note pad” to record important dates, such as annual recerti cation or scheduled maintenance.