ECM BB100, Инструкция по эксплуатации, Страница: 15 / 37

to drain both tanks. Draining is performed by removing one 1/8” NPT plug from each tank
and holding the meter right-side up and then upside down so that all of the liquid drains out
of the tanks.
Refer to the Cleaning the BB100 section for more information.
Programming the BB100
The BB100 has three programmable functions. The three functions can be programmed
either via the meter’s keypad or RS-232. The programmable functions are:
1. Display, analog output, and RS-232 update rate. Options are: F: Fast, A: Average,
S:Slow. See page 15 for numerical values used to determine update rates.
2. Analog output range. This is the quantity displayed when the meter outputs 5.000 V (for
LPM and CFM) or 4.500 V (for Total Liters and Total Cubic Feet). For zero flowrate,
the voltage output is 0 V. For zero total flow, the voltage output is 0.5 V.
For LPM, the options are: 10, 50, 100, 150 (liters/min)
For CFM, the options are: 0.4, 2.0, 4.0, 6.0 (ft
3
/min)
For Total Liters, the options are: 10, 100, 250, 500, 1000
1
(liters)
For Total Cubic Feet, the options are: 0.4, 4.0, 10.0, 20.0, 40.0, 100.0 (cubic feet)
3. Flow Averaging Period. This is the period over which the meter measures the flow to
update the flowrate and total flow. Options are: 0.1s, 0.2s, 0.5s, 1.0s, 2.0s, 5.0s, 8.0s.
When the BB100 is shipped from ECM, the settings are:
•
For display and analog output update rate: A (Average)
•
Analog output at 5.0 V for LPM: 150 (liters/min)
(Note: 0.0 V at 0 liters/min)
•
Analog output at 5.0 V for CFM: 6.0 (ft
3
/min)
(Note: 0.0 V at 0 ft
3
/min)
•
Analog output at 4.5 V for Total Liters: 1000 (liters)
(Note: 0.5 V at 0 liters)
•
Analog output at 4.5 V for Total Ft
3
: 100.0 (ft
3
)
(Note: 0.5 V at 0.0 Ft
3
)
•
Flow averaging period: 1s
To program the functions from meter’s keypad, press and release the SEL button until the
desired mode is displayed on the LEDs. Then, hold the CLR button down and press SEL
three times and the left-hand display will show “1.”. “1.” refers to programmable function 1
(see above): the display and analog output update rate. The currently selected
value will be displayed (one of “F”, “A”, or “S”). To change the programming, press the
1
The meter’s display will show the option of “1000” for Total Liters as “999” while programming. This is
because only 3 display segments are left to display the option. So if “999” is selected, the analog output will
be at 4.500V when the total flow reaches 1000 liters.
How to Use 11