Manual

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When the generator is set from an external source while it is running the Red
LED will go on shortly and then the Green LED will flash at 1 sec. intervals.
A full on LED indicates latchup or time code/noise present at the input.
Repeat jamming process, or turn OFF then ON to reset.
Generator mode When the slate is turned ON, the Red LED will flash at
one second intervals indicating that the generator is running but not set.
Generator RTC mode When the slate is turned ON the Green LED will
flash indicating that the generator has been set from the internal RTC.
Reader/Generator mode When the slate is opened and the reader mode is
active the Red LED will be ON if no ext TC is present. The Green LED will be
ON indicating that an external TC is being read successfully.
When the slate switches over to generator on closing the slate the Green or
Red LED will flash as described in the generator mode.
Reader Mode The Red LED is full ON when no Ext TC is present or there are
reading problems. The Green LED will be full ON when an external code is
being read correctly.
1.1.4 Voltage readout, low battery warning
Pressing the right / blue button shows the battery voltage for 5 seconds
before going into the camera speed check (only in GEN mode with no TC
signal at the input or in READ mode).
When the batteries have gone below 6.9 Volts or the batteries are being
changed the Red or Green LED will double flash.
If using good alkaline, this threshold gives you about one hour to replace the
batteries (with lit LED display at a medium brightness level).
If using Ni-MH or Li-Ion batteries, that time may be shorter due to the different
discharge curve of those.
For rechargeable or Lithium batteries, we recommend monitoring the voltage
indication and double flash behaviour to gather an empirical value about how
long those will last when they are close to being empty.
1.1.5 Changing the batteries
The ACD301 accepts 6 pcs. AA 1,5 Volt batteries.
Make sure to observe polarity, reversed batteries will leak!
Alkaline, Lithium or rechargeable Ni-MH are possible.
Due to the high current draw with display at higher brightness levels, Lithium
batteries will last longer when operating with permanently opened slate.
The slate’s internal Ni-MH accumulator will keep the generator running for 5
minutes when the batteries have been removed. The LED display is shut off
while running on the backup battery. The internal data are not lost during
battery change. After new batteries are inserted, double flashing will go on for
about a minute.
1.1.6 Tuning the slate
The generator Xtal of all Clockit units can be "tuned" using the Clockit
Controller (ACC 101 - 501) to within +- 0.1 ppm to it’s reference Xtal, which in