Troubleshooting Guide - Omega BB-4A User Manual

Section 8 - Troubleshooting Guide
Problem
1. Unit will not turn on.
2. Unit turns on but the target
plate will not get hot.
3. Controller display shows
"Error" and the target plate
will not get hot or cold.
4. Target plate temperature will
of the setpoint temperature.
5. Controller has no output.
Pressing buttons has NO effect.
TUNE blinks on the display.
6. Controller has no output.
Controller does not Respond to
any keypress.
not stabilize to within ± .5°F
BB-4A Blackbody Calibrator
Solution
a. Check all electrical connections.
b. Check rear panel fuses.
c. Unit requires service, contact our customer
service department.
a. Check that you have entered a setpoint
above the ambient temperature.
b. Verify that the controller is set to its
factory default settings.
c. Unit requires service, contact our
customer service department.
d. Unit has been operate outside of operating
range. Safety cutoff switch has disabled
heater. Let the unit cool down, completely.
Press the reset switch located on the right
side of the unit, behind the carry handle,
until a click is heard. If the problem is not
corrected, contact the factory.
a. Unit requires service, contact our
customer service department.
a. Verify that the controller is set to its
factory default settings.
b. Unit requires service, contact our
customer service department
a. Controller may be in Standby mode.
Hold down the
until "TUNE"stops blinking.
a. Controller may be in LOCK mode. Hold
down the key continuously until
"Ac.Cd" is displayed. Change to a menu
level other than level 1 and exit the menu
selection mode by pressing the
once.
8
key continuously
key
8-1