Tecfluid MT03F - Manual (Page 27)

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- Relays. If configured as batching they change its state when the accumulated total
reaches the preset value associated with each relay.
From the working screen, pressing the key (Down / Left) the preset input screen is shown.
On this screen, enter the amount to be dispensed. There are 3 possibilities:
- If only relay 1 is programmed as batching (see section 7.6.1 on page 23), only the
"Preset 1" appears, and the entered value is the one that when the partial counter
reaches this value will produce a change of state in relay 1.
- If only relay 2 is programmed as batching (see section 7.6.1 on page 23), only the
"Preset 2" appears, and the entered value is the one that when the partial counter
reaches this value will produce a change of state in relay 2.
- If both relays are programmed as batching (see section 7.6.1 on page 23), the
"Preset 1" screen appears first, and after the "Preset 2" . The values entered are
those that when the partial counter reaches each value will produce a change of
state in the relay 1 or relay 2.
NOTE: A zero preset value or the two presets with the same value are not allowed.
12.1 Batching start
To start a batching process, the equipment should be on a screen where the accumulated
total appears. Otherwise, the start of the manoeuver will have no effect.
The batching process can be started by shorting the remote Reset terminals (see section
3.2.7 on page 12) or by pressing the key (Escape).
From that moment, the partial counter will reset and relays programmed as batching will
change their state to ON.
12.2 Process and end of batching
The accumulated total counter increases when the MT03F receives flow rate signal.
When it reaches the value of each preset, the associated relay changes its state to OFF.
If during the batching process the key (Escape) is pressed the relays are set to OFF and the
process is finished despite not having reached the preset value. If the event that it is
necessary to complete a batch which was stopped, either by pressing the key (Escape) or
by power failure, program the preset value as the difference between the initial preset value
and the partial counter value shown when the process was stopped.