2022.11.18 REV. MASS FLOW METER OPERATING MANUAL 11
Option: Color TFT Display
Instruments ordered with a color display are functionally the same as standard backlit
monochrome instruments. The color enables additional on-screen information.
Multi-Color Display Indicators
•
GREEN: Parameter labels and adjustments associated with the button directly above or
below the label are presented in green.
•
WHITE: The color of each parameter will be displayed in white when the device is
operating within device specifications.
• RED: The color of a parameter will be displayed in red when its value exceeds 128% of
the device’s specifications.
•
YELLOW: Menu items that are ready to be selected appear in yellow. This color replaces
the > symbol in selections on monochrome display.
✓
Note: Press the logo to turn o the color display backlight. The flow meter remains in
operation while the backlight is o.
✓
Note: Color displays will require an additional 40 mA when using a 12 Vdc power supply.
All other device specifications from your device’s specification sheet remain in eect.
Option: Collecting Totalized Flow Data
MAIN DISPLAY → NEXT (totalizer menu)
The optional flow totalizer displays the total amount of mass or volume that has flowed
through the instrument since its last reset, similar to a gasoline pump.
•
TOTAL/TIMER toggles between totalized flow and elapsed time as the highlighted
parameter in the center.
• SLPM (or another measurement of mass flow) displays the live flow rate. Press to change
engineering units.
•
(Optional) M AVG or V AVG: Shows totalizer averaging, which displays average flow rate
since last reset, updated live.
•
SL (in this example): Alternating display of selected engineering units for flow or time
(page 15) and the selected gas (page 13).
• RESET clears all totalized data and immediately resets the timer to .
• MENU enters the main menu.
Totalizer Rollover Functions
The totalizer will report a maximum of 7 digits. By default, the placement of the decimal is
the same as the live flow rate. The totalizer can be configured at the time of order for the
following behaviors:
•
Rollover (Default): Totalizer resumes counting from zero as soon as the maximum count
has been reached.
• Freeze: Totalizer stops counting at max count, until it is reset manually.
• Error (Default): Displays OVR status message when maximum count has been reached;
compatible with the rollover and freeze functions.
The elapsed time counter has a maximum value of 9999:59:59 (h:m:s) (416 days, 16 hours). If
flow is still being totalized at that point, the timer freezes, regardless of the behavior chosen
above for the totalized flow readings.
A typical TFT display.
The totalizer displaying a mass
flow average.
To Next Page
Loading...
