Trouble Shooting - Geotech IM1.1-20 Manual Del Usuario

Oil Water Interface Meter
6.

Trouble Shooting

Problem
Unit doesn't work when switched on.
The unit does not work with new battery.
Unit does not work in normal light.
Unit sounds continuously when probe enters
well - even if not in product.
The unit emits the intermittent signal when
the probe tip is in water – but changes to
continuous signal when probe body contacts
the water.
It is difficult to detect the Interface when there
is a heavy product.
A steady tone is emitted at the surface of the
water in the well - when the well is known to
have no product.
The unit emits a signal when the probe is
removed from the well but not in any fluid.
The unit emits a continuous signal when
measuring the water level in a cascading
well.
Geotech (UK) Limited
Solution
Check the battery, amber light off, replace
battery.
Probe could be near infra-red light, test unit
away from infra-red or incandescent light.
Check polarity and connection of removable
electronic panel. Check for broken or loose
wires.
Check the lens is clean - unit is silent in
daylight. Check the lens is not excessively
scratched - if scratched, polish with a soft
cloth and mildly abrasive cleaner to restore a
smooth finish to the lens.
Check the ground wire is not shorting out on
the signal wires (black and red) in the hub.
Apply a small amount of detergent to the
probe body and tip. Lower the probe into the
well and find the top of the product. Lower
the probe into the water then slowly draw up
the probe to find the underside of the product
layer.
Lower then probe slowly down the well to
enable the probe to enter the water slowly. It
is recommended that a reading is taken as
the probe passes down through the water -
rather than when it is reeled in up through
the water.
Small amounts of fluid may be draining down
the probe over the lens and causing sporadic
signals.
The unit is not designed for cascading well
use, as water running over the lens can
cause the unit to signal "product".
020365 ISS.07
Page 9