13
2.7.4
Transducer set "B" and "C"
There are two types of transducer block available that both fit into guiderail “B”. One pair for standard velocity on pipes 90mm
to 1000mm, the second pair “C” are for higher velocity flow in pipes 300mm to 2000mm inside diameter. Magnetic attachments
are available to fit onto these guiderails as a standard they are supplied with chains.
2.7.5
Transducer kit "D"
The “D” transducers are for use on pipes 1000 mm to 5000 mm inside diameter. The sensors are supplied with their own guide
rails, ratchets and webbing straps. They may also be supplied with chains if required, if webbing straps have been supplied with
the standard instrument they also can be used to attach to the “D” guide rail. The “D” sensors are aligned in the same way as
other transducers i.e. in Reflex or Diagonal mode and the separation distance is taken from the front edge of the block as shown
in figure 12. the transducers are made from a perspex material with an operating range up to +80
°
C. Please state when ordering
“D” sensors whether you were supplied with webbing straps or chains with your original UFM 610 P.
2.8
Separation distance
The separation distance is calculated by the instrument when all the parameters have been entered in and the fixed transducer
has been turned down onto the pipe surface. The next stage is to slide the moveable sensor to the separation distance required
and screw down onto the pipe surface making sure not to overtighten as it may force the fixed sensor off the pipe wall - finger
tight is sufficient! The separation distance is the distance between the front face of each sensor block. See Figures 9, 10, 11, 12
pages 12 & 13, for examples in both reflex and diagonal mode. Connections are made via the LEMO IP65 connectors between
the sensor block and the electronics.
2.9
Attaching the transducer
The guiderails are attached to the pipe surface as shown in Figures 9, 10, 11 and 12 using velcro, webbing straps, chains or
magnets.
2.9.1
Reflex mounting hardware - Transducer set "A"
Figure 9
velcro strap
separation distance
floating transducer
fixed transducer
