Check-line CTM2 Instruction Manual page 34

7.2 EDX PSU
Problem
Quick Check powers on
momentarily and turns off
Quick Check does not power
on
Display is completely dark
Quick Check does not
appear accurate
Radio communications not
working at all
Remote reading changes to
dashes
Display locks up on
DILLON marquee
34
Possible Cause Solution
Low battery Replace with high quality alkaline batteries. Do not use rechargeable
batteries.
Bad keypad Have unit serviced.
Low battery Replace with high quality alkaline batteries. Do not use rechargeable
batteries.
Bad keypad Have unit serviced.
Batteries installed Insure that positive terminals of both batteries (nub) face inward –
backwards or no spring towards the black cap. Check that spring is attached to the battery cap.
contact
Software reset Remove battery cap & reinstall after one minute. Attempt to turn power on
again.
Display contrast too light Hold the Right Arrow key down while pressing the F2 key several times to
increase the display contrast. If nothing occurs, release both keys. Press
the power button and try again.
EDX PSU Power Supply Remove Power Supply and install batteries to see if the Quick Check or
Communicator II will power up. Return EDX PSU to factory for repair/
troubleshooting.
Display contrast too dark Hold the Arrow key down while pressing the F1 key several times to
decrease the display contrast.
Check installation & Insure that shackles are in good working condition and aligned straight.
system Verify system is applying force directly through the dynamometer with no
off center or torsional loads being applied to the instrument.
Local gravitational If being compared against dead-weights, check your local gravitational
variances constant. Use custom units to compensate or calibrate on-site.
Check repeatability Place Quick Check in low-resolution mode. Lift an arbitrary weight several
times as close to capacity as possible. Record each weight reading. Do
the readings differ from each other? Calculate the standard deviation of
the readings using a spreadsheet such as Microsoft Excel. See if the
deviation is greater than 0.1% of the instrument capacity.
Compare against a Place Quick Check in low-resolution mode. Apply a known load near
reference load. instrument capacity. Check calibration date.
Dead batteries. Distance Bring remote closer to dynamometer. Allow several seconds to retrain.
is excessive, dead radio
pocket
Operating channels mis- Remote and link must be on the same operating channel. See Quick
matched Check and Communicator configurations of COM1 for radio (under Comm
menu) and Common Configurations.
Excessive radio noise or Remove dynamometer and Communicator from the environment. Attempt
interference in communications in an area free of local radio signals. See Radio
environment Information section of the manual.
Low batteries, lost See steps above for improving communications.
communications
Poor connection Remove batteries from Quick Check and Communicator, replace them
between Quick Check and power up.
and Communicator
Quick-Check Red User Instructions