Nowadays it is hard to imagine complex logistics, production and maintenance processes without efficient communication technologies in areas where production processes have to be run permanently at an optimum rate. But smaller and medium sized companies in particular do not necessarily require network supported process visualization or even 24 hour round the clock manned supervision.

For example: A 30000 litre tank contains Diesel oil and an indication of the actual oil level is required locally at the tank fillpoint. A combined audible and visual alarm is required as soon as the oil level drops below 250 litres and a solenoid valve must close when the oil level reaches 25000 litres. At the same time, the oil level and alarm status needs to be monitored at any time on a remote PC which is located some 23 miles away. The VarioFox Indication and Control Instrument from AFRISO was developed for simple applications of this kind, is easy to operate and in conjunction with the AFRISO Event Reporting System EMS 442 and web-service www.afriso-net.com or GSM system for monitoring by mobile phone forms a completely independent measurement and control station with remote monitoring possibilities.

The VarioFox Digital Indication and Control Instrument from AFRISO is a compact, ready-to-connect universal measurement and control instrument with integrated sensor supply and 2 (also choice of 4) voltage-free switching outputs. The instrument is very easy to operate and to program due to its text-orientated menu guidance (English, German or French).

VarioFox features a measurement unit listing, where units can be freely edited, as well as a free scaling/calibration of start and end of scale display values (99.999 - 9999) which allows for almost all possible required parameter settings. For horizontal cylindrical and spherical tanks integrated calibration charts can be accessed. For non-linear vessels or specially fabricated tanks 24-point linearization is available. The highest and lowest operational values are memorized but can also be utilized as instrument-internal visual and audible alarms on request. An alarm mute/accept button on the front of the instrument requires the responsible operator to act and this in itself provides for additional operational safety.

VarioFox works off an 50-253VAC or 20-253VDC supply and has an integrated sensor input (4-20mA, 0-20mA, 0-10V) and two isolated separate analogue outputs (0/4-20mA and 0-10mA).

VarioFox, in conjunction with the relevant electronic transducers (pressure, temperature, level, humidity) or level switches, provides the user with an easy and quick-to-install stand-alone measurement and control system for the indication/display, processing and the control of process parameters or events.

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The standard MHU ultrasonic level-meter is a combination of the Arkon Series99 transmitter in combination with a PU sensor. This sensor is available for 3 measurement ranges; 2/4/6 meter. The MHU is also available with the Arkon Smart99 transmitter, which is suitable for measurement with 2 sensors, and offers RS232/RS485 data output to a pc. Arkon also offers a special data-collection software program as an option for the combination with a Smart99 version.

The MHU compact ultrasonic level-meter comes without display or control panel.
It only has a 4-20mA output. The unit has temperature compensation and RS485 communication for sensor settings through a pc.

The MQU is the Arkon ultrasonic flow-meter. The standard version comes as a combination of a NU4000 sensor + the Arkon Series99 transmitter. The meter has a measurement range of up to 4m (30cm de ad-zone). It has an indication of operating hours, temperature compensation, analogue and impulse output and the delivery comes with a mounting bracket. A second version is available for measurement with 2 sensors instead of 1, this time with the Arkon Smart99 transmitter. This version also offer RS232/RS485 communication with a pc. Arkon also offers a special data-collection software program as an option for this version.

DESCRIPTION

The PX3441 25mm diameter submersible transmitter has been designed for the accurate measurement of the depth and level of liquids.

 The standard model features an output signal of 4-20mA, but 0-100mV, 0-5Vdc and 0-10 Vdc output versions are also available. There is also the option of a remotely mounted amplifier with zero/span adjustment.

 The standard depth transmitter is fitted with a stainless steel nose co ne to prevent sludge buildup.

 The PX3441 transmitter is designed to measure depth and level in bore holes. Applications

include reservoir level, borehole fluid level, water mains pressure inspection chambers, power level, outlet pressure on submersible pumps.

 Electrical connection is via a tough polyurethane screened cable. The cable is vented internally and has Kevlar re-inforcement for high tensile strength. The cable is moulded to the transducer housing making the transmitter rugged and reliable and secure from leakage or condensation. The cable can be provided in continuous lengths of up to 500 metres. .

APPLICATION AND INDUSTRIES SERVED

• Ultimate high/low level ‘fail-safe’ warning alarms for most conductive and non conductive liquids
• Bulk fuel or chemical storage depots
• Domestic and Industrial fuel storage
• Marine overfill warning

FEATURES

• Robust and well proven designs and technology
• Wide range of adjustable thermistor probes to suit most applications
• ‘Fail-safe’ high or low level warning alarms
• Single and dual channel versions
• Built in audible and visual alarms
• 2 Volt free contacts for connection to BMS

SPECIFICATIONS

Power Supply: Single version 85-265 Vac (SMPS) 24 Vdc Dual version 110/230 Vac or 24 Vdc
Process Connections: ½" or 1" BSP
Controller Protection: IP65

APPLICATION AND INDUSTRIES SERVED

• Ultimate high/low/bund level warning alarms for most liquids
• Bulk fuel or chemical storage depots
• Domestic and industrial fuel storage
• Marine overfill warning

FEATURES

• Robust and well proven designs and technology
• Wide range of float switches to suit most applications
• High, low and bund level warning alarms
• Mains or battery versions
• Built in audible and visual alarms.
• 3 Volt free contacts for connection to BMS
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SPECIFICATIONS

Power Supply: Mains version 85-265 Vac (SMPS) 24Vdc Battery version 9 VOLT (PP3)
Process Connections: 1" BSP
Controller Protection: IP65