Rev. 6
5
AMI
EXCELLENCE IN MAGNETICS AND CRYOGENICS
Model 601, and the AC power cord is also connected to the appropriate power
receptacle.
3. Check the voltage limit settings of any power supply programmer and verify the
limits are set to a value greater than 5 volts plus the charging voltage and any
power lead voltage drops.
B.
The system current ramps slowly from zero
.
If the Model 601 is used in conjunction with an AMI Model 430, then an initial
charging delay will be observed when operating without an inductive load (e.g. a
persistent switch is not heated on a connected magnet). To decrease the amount of
time delay, increase the ramp rate to 1 A/sec or greater value. Remember to
decrease the ramp rate, if necessary, before heating the persistent switch of the
connected magnet and attempting to ramp the current. The charging delay will not
be observed when operating with an inductive load.
C.
The FAULT LED is energized with audible alarm
.
1. Verify that the supplied external DC power converter is connected to the rear of the
Model 601, and the AC power cord is also connected to the appropriate power
receptacle.
2. If the DC power converter is connected properly, observe if an internal green LED
is energized by looking through the rear-panel grating. If the green LED is
energized, then the DC power converter is operating correctly.
If the green LED is not energized, then the DC power converter has failed, or
AC power to the DC power converter has been lost. Contact an Authorized AMI
Technical Support Representative for a replacement.
3. If the DC power converter is connected and the internal green LED is energized,
then the FAULT LED indicates the failure of an internal energy absorbing
element. Do not continue to operate the unit and contact an Authorized AMI
Technical Support Representative for further instructions.
VI.
MAINTENANCE
The only routine maintenance required is to keep the exterior surfaces of the
instrument clean by gently wiping with a damp cloth moistened with a mild detergent.
The front and rear panel vents of the Model 601 should also be kept free of obstructions
or excessive dust to allow for proper cooling of the unit.
VII. WARRANTY
All products manufactured by AMI are warranted to be free of defects in materials and
