Valhalla Scientific 4300C, Operation Manual

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HLC ON
To start working with the HLC mode, simply select the correct range for your load and press the “HLC” .
The screen will briefly display “HLC ON”. The instrument will also perform an LED check-sequence. Make
sure that all three of the HLC LEDs illuminate. After the LED check-sequence, only one of the three HLC
LEDs will remain illuminated.
It is always good practice to check if the limits set for the range in use meet your specifications. To view
the set limits:
press “V
IEW
+ HLC”
The screen will display the both the upper and lower limit set for
that range.
Update Function
The Update function is designed to allow the user to set the display update rate and the display intensity.
The user can choose from a list of five possible display update rates and eight levels of display intensities.
Display Update Rate
The display update rate indicates the time interval in-between every display update. Table 7 lists these
values and the equivalent in updates per second.
Table 7 – Update Rates Display Update Rate Display Updates/second
.1s 100msec 10
.2s 200msec 5
.3s 300msec 3.3
.4s 400msec 2.5
.5s 500msec 2