Using The External Probe - OHAUS Guardian 5000 Serie Installations-, Betriebs- Und Wartungsanweisungen

EN-20

2.5 Using the External Probe

1. Connect the Ohaus External Temperature Probe
to the external RTD probe port (E) on the rear
panel of the unit.
Once the Ohaus External Temperature Probe is
connected, the external probe icon (P) will
illuminate.
2. The temperature display (L) will now show the
temperature of the external probe instead of the
heater.
The hot top caution indicator (Q) will still illuminate
once the heater temperature reaches 40°C.
Note: When using the Ohaus External
Temperature Probe, the temperature setpoint
should be adjusted to the desired sample
temperature. If the temperature setpoint is higher
than the sample can achieve, an E7 will occur (see
Troubleshooting section). Reduce sample volume
or temperature setpoint value. For Example: Water
has a theoretical temperature limit of 100°C
(boiling). A temperature setpoint greater than
100°C will cause an E7 error.
3. If the Ohaus External Temperature Probe is
inserted into the external RTD probe port (E) while
the heater is running:
a) The heater will shut off.
b) The unit will display an E7 error.
c) The unit will beep 10 times.
d) All stirring functions will remain operational.
4. If the Ohaus External Temperature Probe is
removed from the external RTD probe port (E)
while the heater is running:
a) The heater will shut off.
b) The unit will display an E4 error.
c) The unit will beep 10 times.
d) All stirring functions will remain operational.
Note: To clear an E4 or E7 error code, flip the
standby switch (I) off and back on. The unit will be
ready for normal use.
Guardian 5000 Series