Specifications
- Micronics Portaflow 333 Portable Ultrasonic Clamp-on Heat Meter
- With ‘A’ type transducers (13-115mm OD)
- Temperature Sensors: Clamp-on PT100 Class B 4 wire, range 0°C – 200°C (32°F – 392°F), resolution 0.1°C (0.18°F). Minimum delta T is 0.3°C
- Heat/Energy calculation is designed to comply with EN1434 section 6
- Includes 100 million point data logger – logs energy and flow all date stamped
- Cross correlation flow measurement system
- Display shows flow rate, total flow, energy rate, total energy, temperatures, signal and battery level
- Transducer Operating Temp: -20°C to +135°C (high temp -20°C to +200°C available)
- Flow Range – 0.1m/sec to 20m/sec bi-directional
- Sensor cables, blocks and temp sensors: IP54 with IP68 option
- Display – 64 x 240 pixels graphic display
- Set-up via 16 key control panel
- Battery (14 hr life) or mains operation
- Accuracy: +/-0.5% to +/-3% dependant on flow and pipe size
- CE approved
13-115mm Micronics Portaflow 333 Portable Ultrasonic Clamp-On Heat Meter
This Micronics Portaflow 333 Portable Ultrasonic Clamp-on Heat Meter with ‘A’ type transducers (13-115mm OD) and standard IP54 rating comes with an improved data logger and is designed to comply with EN1434 section 6. The temperature sensors included within this package are clamp-on PT100 Class B 4 wire with a 0°C-200°C range (32°F – 392°F), a resolution of 0.1°C (0.18°F) and the minimum delta T is 0.3°C IP54 with an IP68 option. The PF333 offers quick and accurate bi-directional flow and energy measurement from outside the pipe with its easy to follow menu and easy installation and set up. This compact, rugged and reliable portable clamp-on heat meter has been designed to provide sustained performance in industrial environments and is suitable for industries such as Building Services and Energy Management and for HVAC / energy system audits. The Portaflow 333 works as a transit time ultrasonic flow meter and is designed to work with clamp-on transducers to provide accurate measurement of liquid flowing within a closed pipe without the need for any mechanical parts to be inserted through the pipe wall.
Measurement Principle: Micronics meters use a cross-correlation transit time algorithm to provide accurate flow measurements. An ultrasonic beam of a given frequency is generated and applied to the transducer crystals. This transmission goes first from the downstream transducer to the upstream transducer as shown in the upper half of Figure 1 (below). The transmission is then made in the reverse direction, being sent from the upstream transducer to the downstream transducer as shown in the lower half of Figure 1. The speed at which the ultrasound is transmitted through the liquid is increased slightly by the velocity of the liquid through the pipe. The subsequent time difference T1-T2 is directly proportional to the liquid flow velocity.
Package contents
This portable ultrasonic clamp-on heat meter with ‘A’ type transducers (13-115mm OD) includes PT100 Class B 4 wire temperature sensors, data logger, battery powered (and includes power supply with UK/US/European adapters, 110/240VAC) and carry case in the package alongside IP54 ingress rating and -20°C to +135°C temp range as standard unless other selections are made below:
