10
TDD10 - NLFREN - v1.0 - 11042017
EN
TOOLS
Please read this manual carefully and operate the control panel accordingly.
1 Features of control panel and wiring
1.1 Summary
Flow meter adopts low-power CPU core. The turbine sensor signal generated by the amplified pulse is conveyed to the CPU in,
CPU operation in accordance with the flow coefficient value will flow to a 5 digits on LCD display, LCD reading range
of 0.01 ~ 99999.
In addition to the normal work flow meter flow measurement of liquids, but also can automatically factory flow coefficient (k)
and user manual calibration of the flow coefficient (k) calibration.
1.2 Functions
• Two cumulate (which can be reset TTL1 cumulate Clear, TTL2 the total accumulation can not clear zero), it can be shifted by
the buttons.
•
Unit selection: The selection buttons to operate the flow units: liters and gallons (U.S.)
•
Sensor pulse frequency range: 5 Hz ~ 5000 Hz
• Low power consumption: Two pieces of R03 (UM-4) 1.5 V common batteries (can be used for 2 years)
•
Factory automatically flow coefficient (k) calibration, user manual flow coefficient (k) calibration.
1.3 Performance and technical parameters
• Power supply: Two pieces of R03 (UM-4) 1.5 V common batteries
• Measurement accuracy: 1%
•
LCD display: shows the current flow value, calibration and fault code
•
Operating temperature range: -10 ~ +60 °C
• Flow rate: 150 l/min
1.4 Jumper definition and connection
Jumper J2: Choice between normal working status and automatic flow calibration status factory.
2 Functions and operating instructions
2.1 Normal work status and operations
2.1.1 Button’s 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 flow rate 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.
Fig. 1 Buttons and LCD display
2.1.2 LCD description
•
TTL1: current flow which can be reset to zero
•
TTL2: current flow displayed is total cumulative and can not be reset to zero. To clear TTL2, 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
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