RS Aqua Ltd. 46 Hurst Barns, Privett, Alton, Hampshire, GU34 3PL
Tel: +44(0)1730 828222 Fax: +44(0)1730 828128 Email: [email protected] Web: www.rsaqua.co.uk
B4. What fittings do I require to connect cabling to the WaveRadar junction box?
A: A set of EEx dIIC, EEx e II cable glands is supplied with each WaveRadar (fitted to the
junction box). Additional Hawk Exd glands, M20 – type 501/453 size OS and a Hawk Exd
reducer M25 to M20 – type 25M20F can be purchased from RS Aqua Ltd. Refer to the price
list for costs.
B5. What are the correct connections to the Field Bus Modem?
A: The field bus cable is connected to terminals 2 and 3 of the screw terminal block. The
FBM – PC cable should have the DSR, DTR, RTS and CTS connected in addition to the Tx,
Rx and GND wires. The full hand shake is needed. The RTS line is used for FBM Tx/Rx
control.
B6. How do we start WaveRadar?
A: Once the sensor is connected to the FBM, it will autostart as soon as power is applied.
The unit then performs start up and initialisation procedures, on completion of which it enters
the first measuring cycle and commences a continuous output of data. When WaveRadar is
operating it should not be interrupted. Any message sent to the radar will be interpreted as a
query and the continuous output of data on the bus will cease. The communications
processor will wait for a command message. If no message is received within 60 seconds the
data output string will recommence but if, within this period, a further query is sent to the
radar, the 60 second period will be reactivated from the time of that query.
B7. Are any special tools or test equipment required for assembling and installing
WaveRadar Rex?
A: No, although a small spirit level would assist in checking vertical alignment of the
assembled Rex.
B8. Please quote power consumption figures for WaveRadar Rex D.
A. Between 460 and 610mA depending on setup configuration.
C. Operation Servicing Maintenance Calibration.
C1. How often is recalibration required and how is it performed?
A: Periodic calibration is not required. The microwave and electronics modules are
designed with stability control circuits. In addition an integral digital reference oscillator
checks measurement accuracy 6 times per second. Any errors, depending on their source
and nature, are either self corrected or flagged in the output message.
