Tecfluid APTM44 - Manual (Page 4)

Cod.:E-MI-2152004I / Rev.: 1
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WORKING
The APTM44 needs no adjusting to adapt to the pick-up or control instrument.
In the event that there are pulse outputs with no flow in the turbine, what is most probable is that
the cables to the pick-up are too long or that they are too near mains cables.
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TECHNICAL CHARACTERISTICS
8.1 Environment
The plastic case has protection as per IP 40 and the terminals as per IP 20.
The working temperature limits are 0 to 50
o
C
8.3 Mains supply
The standard mains voltage is 220 Vac 50/60 Hz. AC Mains voltages of 240 V, 110 V y
24 V 50/60 Hz. and 24 Vdc supply voltage are available on order.
The power consumption is less than 1 W.
The instrument is not supplied with a mains filter and in the exceptional cases that, due to high
levels of mains interference, a mains filter is needed, this must be installed externally. Due to the low
power consumption, almost any small mains filter will be adequate.
8.5 Pulse Output
The output pulse has a pulse width of 1 ms.
The TTL outputs are directly from a CMOS integrated circuit and have a load current of 1 mA
maximum.
8.7 Pulse Input
The input is intended for an inductive pick-up coil.
The maximum input frequency is about 1500 Hz.