Operation; Programming; K Factor (Pulses Per Liter) - Tecfluid CP CH420 Series Instruction Manual

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OPERATION

In order for the instrument indicates an actual flow rate and volume, the k factor specified on
the meter must be programmed. To do this, in a CP ... CH420L, the plastic cover must be
removed by unscrewing the four screws on the corners. After that, the push buttons will be
accessible. In a CP ... CH420R the keys are directly accessible.
If the instrument has not been previously programmed, or due to an alteration in the
memory data, the instrument recovers the factory default values. The word "PRESET"
appears on the display. This indication disappears when the programming sequence has
been completed.
There are three push buttons with the following functions:
4.1

Programming

In all the programming screens, the "RESET" push button exits the screen without saving the
data in the memory, even if changes in the digits have been made or not.
By pushing the two push buttons PROG at the same time, the display changes to the
programming mode.
4.1.1

k factor (pulses per liter)

On the first screen, the pulses per liter that allow the flow rate calculation can be entered.
In this screen there are 7 digits (four whole numbers and three decimals). The value that
must be introduced is the pulses per litre factor given on the label of the COVOL or TM.
To do this, pressing the push button marked with the arrow pointing upwards, the blinking
digit will increase. When it reaches nine it goes back to zero.
With the push button marked with the arrow pointing left, the cursor will pass to the next
digit to be modified. On the seventh digit, by pressing this push-button the cursor will pass
to the first digit on the display.
Once the k factor is programmed, by pushing the two push buttons PROG at the same time,
this value will be automatically saved in the memory and it will appear the units selection
screen.
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