Grant Optima Serie Manual De Instrucciones página 24

Display shows Faulty temperature
"Open"
probe
Display shows Faulty temperature
"Shrt"
probe
Unit showing Calibration values not
erratic set correctly
temperatures
Display shows Heating water at or
"Hot"
near to boiling without
lid
Heating very large
volumes of liquid with
large thermal losses
Display shows Faulty fuse(s)
"Fuse"
Display shows PCB fault
"Crct"
Display shows Safety relay fault
"Self"
Stirrer motor not Stirring propeller or
rotating pump impeller is
obstructed
Faulty motor
Display shows Accidentally entered
"Cold"
manufacturer reset
mode
For any other errors or service requests, please contact Grant Instruments service
department.
30423 V4
Page 23
Have a competent person check the probe for an
open circuit fault or contact Grant.
Have a competent person check the probe for a
short circuit fault or contact Grant.
Restore the factory calibration settings (see section
5.2.7) then re-calibrate if required (see section
5.2.6).
Add a lid to reduce thermal losses and leave unit
running with the "Hot" warning present. If the alarm
has not cleared within 1 hour contact Grant.
Add measures to reduce thermal losses and leave
unit running with the "Hot" warning present. If the
alarm has not cleared within 1 hour contact Grant.
Have a competent person check the internal fuses or
contact Grant.
Have a competent person check the product or
contact Grant.
Have a competent person check the product or
contact Grant.
Clear obstruction.
Have a competent person check the motor or contact
Grant.
Warning can be cleared by pressing S button, but
note that all settings (including any factory
calibration) will be reset to the default values.
Contact Grant Instruments service department for
assistance if required.
www.grantinstruments.com
T100 & TC120
Operating Manual