Intek 111D - Manual (Page 15)

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MAN114 REV C.wpd
4.3 SPARE PARTS
There are no normally recommended spare parts to stock. The transducer and electronics are a matched
set and therefore are not interchangeable with others. Should a spare be needed, a complete unit should
be ordered and stocked. For AC powered units, the spare fuse is a ½A, fast acting fuse. Replace fuse
with Wickmann part number 3730500041 or equivalent. For units powered by 24 Vdc, the fuse is a 1A
slow blow fuse. Replace with Wickmann part number 3741100041 or equivalent.
4.4 TROUBLE SHOOTING
TABLE I. TROUBLE SHOOTING GUIDE
OBSERVATION PROBABLE CAUSE REMEDY
Output continually drifting
downward with constant flow 1. Coating forming on wetted surface
of transducer 1. Clean transducer periodically or
adjus t calibratio n (cal)
potentiometer until layer build-up
stabilizes
Output saturates high or low
— w ill not respond to flow
change 1. Loose transducer cable connections
2. Flow rate not yet within range of
meter
3. Meter/Calib switch in wrong
position
4. Transducer cable damaged
5. Bad electronic component
6. Blown fuse
1. Securely c onn ect transduc er cab le
2. Check flow
3. Ch eck M eter/C alib sw itch is in
"meter" position
4. Ch eck c able c ontinu ity
5. Perform transducer and electronics
functional tes t (see SEC TIO N 3 .5).
W rite results d ow n and cons ult
factory
6. Replace fuse as needed
Output varies with flow but
not stab le 1. Fluid te mpe rature n ot stable
2. Fluid mixture not properly blended
3. Ga s mix ed w ith liquid
4. Flow not fully developed
1. Tune temperature controller, add
insulation and/or add static mixer
in front of transducer
2. Add static mixer in front of
transducer
3. Reduce gas pressure or check for
air ingre ss on suction side of pum p.
Refer to Installation Section
4. Check inlet and outlet for proper
straight line length & freedom
from obstructions