FAX:
(650) 965•0764
TOLL-FREE [US/CA]:
(800) 446•8811
TELEPHONE:
(650) 969•8811
48501 Milmont Drive • Fremont, CA 94538
Page 44
Error Code
Description
ER2
High voltage exceeded 8.00 kV
ER3
Operation not allowed
ER4
Attempted to change unit parameters via
front panel while in Mode 2
ER5
Attempted high voltage operation with
safety interlock open
ER6
Attempted to turn high voltage ON via
HIGH
VOLTAGE ON/OFF
button while in Mode 1
with secondary interlock fault
ER8
Parameter at limit
ER9
Operation not allowed
Restoring Default Parameters
Restoring default parameters provides a starting point for control unit readjustment in the event
measurements become unreliable. Each channel may be independently-restored to default
parameters. However, resetting the Terranova® 752A does not affect any changes done via the
internal DIP switches.
To restore default parameters:
1. Turn the unit OFF via the
POWER
switch
2. Simultaneously depress the
SELECT
button of the channel to be restored along
with the
RAISE
and
LOWER
buttons, and
3. Restart the unit via the
POWER
switch
Once power is restored, the unit will commence the self-test. If reset is successful, the code RST
will appear on the corresponding CURRENT display followed by short BEEPs. User should release
the buttons after the code RST has been output to resume normal operation. Error code ER9 will
be output after an unsuccessful reset. If code RST is not output, user should repeat the reset
sequence.
Table 15.
Terranova® 752A display error codes
Error code ER9 will be output onto the CURRENT
display of CHANNEL 1 if buttons are depressed for
too long even after a successful reset (i.e. code RST
is output); this is normal.
NOTE
Since 1976
