III. Functions and operating instructions
Figure 1
Buttons' operation, LCD display to indicate their location (see Figure 1)
1. Normal work status and operations
A. Buttons' operation
To press " DISPLAY " shortly can shift current
cumulative
TTL1 and total
cumulative
TTL2, When TTL1 displayed, hold down the "DISPLAY button" about
2 seconds, cumulative flowrate of TTL1 can be cleared "0", while TTL2 can not.
To press " CALIBRATE " can shift the unit LTR and GAL, and the corresponding
characters will be showed on the LCD display
To press "DISPLAY" and "CALIBRATE" at the same time about 2 seconds will
enter the user manual flow coefficient (k) calibration status.
B. LCD Description:
TTL1: current flow can be cumulative in which can be cleared zero;
TTL2: current flow displayed is total cumulative in which can not be cleared zero,
to clear TTL2 flow for zero, take the batteries from the body and install again.
LTR: flow unit
GAL: flow unit (U.S. GAL)
Figure: five field characters, used to display the flow value of calibration
coefficient (k) value and the error symbols
2. Work and dormancy status
When the panel works normally,
The liquid flows through or to operate the buttons, the control panel
LCD shows work status;
No liquid flows through or to operate the buttons, one minute later the control
panel will be in dormancy status, LCD does not display;
The liquid flows through or to operate the buttons, the control panel LCD will
display, the control panel will be waken up and normal working status restored.
