Tecfluid TH6 For AD Series - Manual (Page 10)

10
9 TROUBLESHOOTING
Problem Probable cause Remedy
The analog output gives
always 0 mA
Cables disconnected.
Check the cable connection.
The pointer rubs on the
scale Normally occurs due to a blow or
fall of the instrument.
Straighten the pointer by bending
it gently until separate it 2-3 mm
from the scale surface.
When the float is moved
the pointer follows it, but
does not return to 0
The pointer is not properly secured
to the shaft.
Set the pointer on the conical
shaft through a soft and careful
blow.
The pointer is displaced
with respect to the zero
of the scale.
Blow or fall of the instrument.
Match the pointer to the 0 of the
scale by means of the adjustment
screw of the pointer, turning left or
right according to convenience.
Hold the shaft in such a way that
is not bent or damaged.
Note: To remove the cover, it is necessary to remove the four screws in the front cover of
the housing.
In all cases, check that there is no friction between the movement of the needle and the
connecting cables of the limit switches or transmitters.
When the pointer of the instrument is handled, it can become in a loss of accuracy of the
transmitter.