Manual

INSTALLATION
PRESSURE IN EXCESS OF ALLOWABLE RATING MAY CAUSE THE HOUSING TO BURST AND CAUSE SERIOUS PERSONAL
INJURY.
Check the internals of the flow meter for any foreign material. Ensure the turbine rotor spins freely prior to installation. Also,
check fluid lines and remove any debris found.
Install the flow meter with the flow arrow, etched on the exterior of the meter body, pointing in the direction of fluid flow.
Though the meter is designed to function in any position it is recommended, where possible, to install horizontally with the
conduit adapter facing upward. Thread a magnetic pickup into the conduit adapter completely finger tight without forcing.
Secure with a lock nut if supplied. Install conduit or other fittings suitable for the installation area onto the conduit adapter
hub on the flow meter.
All Blancett Model 1200 turbine meters use stainless steel construction materials. The user must ensure that the operating
fluid is compatible with these materials. Incompatible fluids can cause deterioration of internal components and cause a
reduction in meter accuracy.
The measured liquid should be free of any large particles that may inhibit rotation of the turbine blades. If particles are
present, install a mesh strainer upstream before operating the flow meter. See Table 1 for strainer recommendations.
Part Number Size Strainer Mesh Clearance
B121-225 1/4 in. 60 × 60 0.0092
B121-250 1/2 in. 60 × 60 0.0092
B121-275 3/4 in. 60 × 60 0.0092
Table 1: Filtration recommendations
The preferred plumbing setup is one containing a bypass line (Figure 2) that allows meter inspection and repair without
interrupting flow. If a bypass line is not utilized, it is important that all control valves be located downstream of the flow
meter (Figure 3).
STRIKING AN EMPTY METER WITH HIGH VELOCITY FLOW STREAM CAN CAUSES DAMAGE.
This is true with any restriction in the flow line that may cause the liquid to flash. If necessary, install air eliminators to ensure
that the meter is not incorrectly measuring entrained air or gas.
Blancett recommends installation of a minimum length, equal to ten (10) pipe diameters of straight pipe on the upstream side
and five (5) diameters on the downstream side of the flow meter. Otherwise, meter accuracy may be affected. Piping should
be the same size as the meter bore or threaded port size.
Do not locate the flow meter or connection cable close to electric motors, transformers, sparking devices, high voltage lines,
or place connecting cable in conduit with wires furnishing power for such devices. These devices can induce false signals in
the flow meter coil or cable, causing the meter to read inaccurately.
If problems arise with the flow meter, consult the TROUBLESHOOTING GUIDE on page 11. If further problems arise, consult
the factory.
User Manual
Page 7 November 2013