Accurate probe for temporary or semi-permanent flow logging.
Insertion meters are an economic alternative to full-bore metering and can be temporarily or permanently installed to meet flow monitoring needs. Insertion meters can be used as a portable survey too where occasional measurement at many points is required or to improve knowledge of the distribution network. They can be used for the measurement of flow in large diameter pipes more economically than using full bore meters.
Their high sensitivity and versatility also enables flow profiles to be measured within a pipe. A gauging rod is used to determine the exact position of the head in the pipe. This is ideally, but not necessarily, in the centre of the pipe, for example with large diameter pipes. Insertion and removal can be carried out on live mains, without disruption to the supply, by fitting suitable gate valves at the tapping points.
The AquaProbe insertion meter comprises an electromagnetic sensing head mounted on the end of a support rod. The whole assembly can be installed in existing pipelines without the need for the major excavation or alteration to pipework associated with full bore meters. It can also be fitted without interruption to the flow and can be easily removed for periodic calibration or inspection, or inserted at a second location through the provision of tappings and valves on the supply pipelines.
Key features are the wide flow range, with minimum velocities well below insertion turbine or DP devices, and no moving parts, resulting in increased reliability and reduced maintenance. The AquaProbe insertion meter meets the widest variety of site requirements and applications, from permanent monitoring through to site surveying. The transmitter is fully submersible, thus enabling it to be locally mounted in chambers, which are liable to flooding or up to 200m remote from the probe.
The AquaProbe insertion meter is the ideal solution where there is no external power. User-replaceable batteries provide up to 2 years of battery life. Flow Range 0-10m/sec Accuracy ?2% of rate or ?2mm/sec, whichever is the greater.
Manufactured by: ABB
Model: AquaProbe Insertion Flow Meter
Distribution flow monitoring
Temporary flow monitoring projects
|Maximum insertion length||300mm (12 in.), 500mm (20 in.), 700mm
(25 in.) and 1000mm (40 in.)
|Pipe sizes||200mm to 8000mm (8 in. to 320 in.)
|Max. pressure||20bar (295 psi)|
|Pressure tapping provision||1/8 in. BSP (1/8 in. NPT)|
|Connection||1 in. BSP, 11/2 in. BSP (1 in. NPT)|
|Flow condition||Fully developed profile in accordance with
ISO 7145-1982 (BS1042 section 2.2.)
|Velocity||±2% of Rate or ±2mm/s (±0.08 in./s )
whichever is the greater
|Volume||Refer to ISO 7145-1982 (BS 1042 section
2.2) for details
|Materials of construction||Wetted parts: stainless steel, PVC (UKWFBS
|Seals||Nitrile rubber (UKWFBS listed)|
|Terminal box||Aluminium alloy|
|Storage||-20°C to +70°C (-4°F to 158°F)|
|Operation||-20°C to +60°C (-4°F to 140°F)|
|Fluid (water)||0°C to +60°C (32°F to 140°F)|
|Mounting||Directly into the pipeline through a
fitting or valve with 25mm (1 in.) minimum
|Protection||IP68/NEMA6 [for submersion to 10m
(30 ft) indefinitely]
|Weight||< 3.5kg (7.7 lb)|
|Maximum flow||The maximum velocity depends upon
the actual insertion length; typical
insertion lengths are 1Ã?Â¢??8 and 1Ã?Â¢??2 pipe
diameter. The graph gives an approximate
indication of the maximum
allowable velocity for different insertion
|Battery life||Typically 21/2 years (2 batteries)
1 year (1 battery)
|Pulse outputs||Isolated ±35V d.c. 30mA - two bidirectional
solid state switches with common
Output 1- Forward only, or forward
plus reverse pulses
Output 2 - Reverse pulses or direction
Pulse output - 50 Hz maximum, 50%
nominal duty cycle
|Local Port (option) - RS232 compatible
via ABB lead
Remote Port (option) - RS232 with RI,
RTS and CTS handshaking
|a.c. and d.c. units <1s
Battery units - 15s
|Materials of construction|
|Enclosure||Aluminium alloy, glass window|
|Electrical connections||20mm glands (plastic or armoured),
or accepts 1/2 in. NPT threaded or
military style plug and socket
|Sensor cable||ABB supplied - 80m max. separation.
Special - 200m separation (on application)
Supplied and potted in lengths of 3, 10
and 30m (10, 30, and 100 ft) as standard
Optional plug and socket connection
Armored cable also available
|Voltage range (V)
|85 to 265
|Frequency (Hz)||47 to 440|
limits of battery
|for above specified battery life)
0°C to 50°C (0 to 122°F)
|Temperature||Storage -20°C to +70°C (-4°F to +158°F).
Ambient - 20°C to +60°C (-4°F to +140°F).