British Energy - Caemes Bay - Minisonic 600 / 2000

Background:
Part of the process of moving the nuclear fuel rods from the storage containers to the reactor involves passing them through a manifold arrangement that allows the passage of the rods into the pressurized reactor. This is a sealed system,the process cannot be shutdown and any instrumentation needs to be suitable for retrofit applications.
The Problem:
A range of pipework from the manifold supply coolant (water) to the area where the rods are transferred. At various points around the system, the cooling water needed monitoring to ensure there was enough coolant being correctly distributed from the manifolds down each individual cooling pipe.
The Solution:
The solution was to use clamp on meters from ULTRAFLUX. The MINISONIC 600 and MINISONIC 2000 use clamp on sensors and are completely non contact. This solution was ideal. The meter is capable of metering refrigerants, fuels and water, to a high degree of accuracy and repeatability. The pipework was DN80 and in stainless steel. The system was easy to set up, it can be done via the integral keypad or via the free issue software. It gave a 4-20 mA output for flow and also had an alarm relay for setting a flow limit switch. The MINISONIC range of flowmeters were also selected for their range ability and ease of installation. Where pipework has been installed, clamp-on meters can be selected for their retrofit capability. Flows are not interrupted or by-passed and the installation can be easily checked by the in-built diagnostics.Temperatures to 180 C are a standard option (and down to -50 C), and pipe sizes of 10-3300 mm are offered through firmware and sensor options. 2 channel and a 2 chord versions are available. The ‘ESC’ autofocus function increases the performance of the meter in extreme conditions.
Further Information:
For Further information on the MAGFLO range of Flowmeters or any other metering systems, please contact DP-Flow Ltd on +44 1865 600245 www.dp-flow.co.uk Or for Australia +61 8 9467 2622 www.dp-flow.com.au
Equipment Description:
EQUIPMENT SPECIFICATION: MINISONIC 600 pipe i. d. up to 600mm, MINISONIC 2000 pipe i. d. up to 3300 mm. Single / Dual Channel / Chord Options.Probe Types, Clamp On and Wetted. Outputs 2x 4-20mA, 2 relays for alarm, flow direction, flow threshold, totaliser, fault, RS232 and 485, JBUS-MODBUS Protocol. Power Supply 10-30 VDC, 9-18 VAC, Consumption 5W Typical Accuracy +/-1% of reading, repeatability +/-0.05% Now available with ESC (Echo Shape Control), and the new high technology probes for difficult applications. These meters now have an integral keypad, display and an incredible autofocus/noise rejection capability.