Type 8025

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Output

• Transistors (digital outputs DO1 and DO4):

– potential free

– NPN or PNP (wiring dependent)

– function: pulse output (by default for DO1), state (by default for DO4), configurable and para-

metrisable

– 0…2200 Hz,

– 5…36 V DC, 100 mA max., voltage drop at 100 mA: 2.7 V DC

– duty cycle (pulse duration/period):

– > 0.45 if 0.6 < frequency < 300 Hz

– > 0.4 if 300 < frequency < 1500 Hz

– < 0.4 if 1500 < frequency < 2200 Hz

– galvanic insulation, protected against overvoltage, polarity reversals and short-circuits

• Relays (digital outputs DO2 and DO3):

– 2 relays, normally open, parametrisable (by default: DO2 always configured to control the valve,

parametrised of 100 % of the batch quantity and DO3 configured as alarm)

– non UL recognized device: 230 V AC/3 A or 40 V DC/3 A (resistive load)

– UL recognized device: 30 V AC/42 V

peak/3 A or 60 V DC/1 A

– max. cutting power of 750 VA (resistive load)

Voltage supply cable

• Wall-mounted variant:

– external diameter (cable): 5…8 mm (for the cable glands)

2.

Product versions

2.1. Flowmeter

The compact variant is available in two variants:

• Insertion flowmeter with standard output signal (4…20 mA, frequency)

• Insertion flowmeter as battery powered indicator/totalizer

Flowmeter with standard output signal

The device operates on a 2- or 3-wire system and needs a 12…36 V DC or a 115/230 V AC power supply.

The device is equipped with:

• an analogue output (4…20 mA current output)

• a digital output (pulse output) and

• two totalizers.

Some variants are also fitted with two fully configurable relay outputs.

The device allows:

• through the digital or relay outputs

– to switch a solenoid valve

– to activate an alarm

– to generate a flow rate proportional frequency

• through the analogue output to establish a control loop.

Flowmeter as battery powered indicator/totalizer

The device has no output and displays the instantaneous value as well as the amount of liquid that has flowed trough.