Probe Response - Pr - Barnstead SUPER-NUOVA HP133420-33 Operation Manual And Parts List

Probe Response - Pr

This feature is available for units with heating functionality
and is only applicable when using a probe. The purpose
of this feature is to select the minimum time required for a
temperature change to be detected before signaling a
Probe Out of Solution error (E03). A choice between 3
and 20 minutes in 1 minute increments is possible. The
default is 3 minutes, but if a large load is placed on the
top, the time may need to be extended to avoid nuisance
E03 errors.
To modify/view the Probe Response follow the instruc-
tions given below:
1. Plug the unit into the appropriate power, but do
not turn it on (displays should be blank, unless
Hot Top Warning System is indicating a hot sur-
face), enter the Service Menu by pressing and
holding the POWER key. After about 3 seconds
a single beep will be heard and you may
remove your finger from the POWER key. The
display will change to OSP.
2. Rotate the center knob until the display reads
Pr. Press the SET key under the HEAT display
to accept, and the display will change to the cur-
rent time chosen. Rotate the center knob to
change the display and press the SET key
under the HEAT display again.
3. The unit will return to the previous menu. Select
another feature to change, or press the POWER
key again to return to the off mode.
Set Point Limit - SL
This feature is available for units with heating functionali-
ty. The purpose of this feature is to select whether the
maximum set point will be limited based on the Over-tem-
perature Set Point (OSP), or unlimited (UL). If it is limited
by OSP then the maximum set point that can be chosen
will be based on the setting of the OTP control on the
front edge of the unit. If a heating set point of 250°C is
desired, the OTP must be set at least 50°C higher.
Therefore the OSP setting would need to be at least
300°C. The probe circuit is also affected by the selection
S C
ERVICE AND ALIBRATION
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