6
August 18, 2003
III.
TROUBLESHOOTING
A.
No LED power indication when the READ switch is depressed
1.
Verify the sensor is properly connected to the SENSOR connector. The POWER
LED indicates proper
sensor current
; consequently, the POWER LED will not
light if the sensor is not connected properly even though batteries are fully
charged.
2.
Recharge the batteries.
3.
Qualified Service Personnel ONLY
: Check the condition of the internal batteries.
Verify no corrosion exists.
B.
Meter reads 100.0 when the READ switch is depressed.
1.
Verify that a sensor is properly connected to the instrument.
2.
Ensure the helium level is not actually at the top of the sensor.
C.
Other erroneous level indications.
Most inoperative instruments are traced to improper wiring between the sensor and the
instrument. Verify the sensor is connected in accordance with the color code outlined in
the installation section (see table in installation section and Figure 1).
If the cause of the problem cannot be located, please call an AMI Technical Support
representative at (865) 482-1056. Our standard business hours are Monday through
Friday, 8:00 a.m. to 4:30 p.m. Eastern Time.
IV.
QUALIFIED SERVICE PERSONNEL (QSP)
A. ESD
This instrument contains components which are susceptible to damage by Electrostatic
Discharge (ESD). Take the following precautions whenever the cover of the instrument
is removed.
1.
Disassemble the instrument only in a static-free work area.
2.
Use a conductive workstation or work area to dissipate static charge.
3.
Use a high resistance grounding wrist strap to reduce static charge accumulation.
4.
Ensure all plastic, paper, vinyl, Styrofoam
tm
, and other static generating materials
are kept away from the work area.
5.
Minimize the handling of the instrument and all static sensitive components.
6.
Keep replacement parts in static-free packaging.
