GF Signet 2551 Magmeter Flow Sensor - Display - Manual (Page 10)

10 2551 Magmeter
K-Factor
060.000 >
K-Factor: See the charts in section 7.3 for values in pulses per U.S. gallon or in pulses per liter.
To use other units, convert the published values as appropriate.
Pipe Size: Select the pipe size that is nearest to the nominal pipe size.
Averaging: Set the averaging period based on the installation and À ow conditions. Smaller
values allow the 2551 to respond to changes in À ow rate quickly, while larger values smooth the
À uctuations caused by installation and À ow conditions. See section 7.1 for details.
7. Setup Menu
Flow Units: Set the units for the application. Four characters are available. The ¿ rst three characters can be set to any symbol or alpha
character, upper or lower case. The following special symbols are located between the upper case and lower case menus:
• (centered dot)
— (micro) _ (blank)
- (dash) / (slash) 3 (for cubic units)
The last character selects the timebase for the À ow rate measurement.
Select S/s (seconds) M/m (minutes), H/h (hours) or D/d (days)
Total Factor: Set the factor by which the totalizer will count. This setting is made in the
application units (i.e., gallons, liters, etc.)
Totalizer Units: Set the Totalizer Units. This setting serves as a label for the totalizer displays
only. It has no effect on the measurement. The special characters listed in the Total Factor
settings are available here also.
Low Flow Cutoff: Set a À ow rate that the 2551 Magmeter will use as a minimum threshhold.
If the À ow rate falls below this value, the 2551 will respond as if the À ow were zero.
Sensitivity: Set a percentage of maximum range by which the À ow must change to override the
averaging feature and "jump" quickly to the new À ow rate. See detailed explanation in section 7.1.
Signet Magmeter
RELAY 1 RELAY 2
ENTER
Enter Menu
Setup >
The Setup menu contains all of the parameters necessary for the 2551 Magmeter to begin
measuring À ow.
NOTE: The Security Code must be entered before any changes can be made to the Setup menu.
See the Options menu in section 11 for details.
The values shown for each menu item represent the factory
standard setting. All 2551 magmeters are packaged with these
settings.
Set 4 mA: (2551-22 and -42 versions only) Set the À ow rate where the current output will be 4 mA.
Set 20 mA: (2551-22 and -42 versions only) Set the À ow rate where the current output will be 20 mA.
The 4 to 20 mA output may be spanned to monitor forward and reverse À ow rates.
ENTER
Pipe Size
2” DN50 >
Sensitivity
100% >
Flow Units
GPM >
Set 4 mA
-100 GPM >
Set 20 mA
100.00 GPM >
Total Factor
1000.0 >
Totalizer Units
Gallons >
Low Flow Cutoff
0.5 GPM >
Averaging
25 secs >
Use the keypad to navigate through each setting.
Enter Code
0000