3310F Series Operation Manual 21
3.2.9. key and LED
The input to the 3310F series Electronic Load can be switched ON/OFF by using
the “LOAD” button. Indication of the ON/OFF state is provided by illumination of the
Button.
LOAD button lit = LOAD ON (load sinks according to the preset values)
LOAD button unlit = LOAD OFF (the load does not sink current)
Turning the LOAD OFF does not affect the preset values. When the LOAD ON state
is enabled the unit will revert to sinking according to the preset values.
3.2.9.1. When the Load ON/OFF key is operated the current taken by load will follow
The RISE or FALL with time according to the preset rate. The current RISE
And FALL times can be adjusted in the DYN Setting button of the front panel.
3.2.9.2. In addition to the LOAD ON/OFF function the user can also adjust the
Voltage level at which the unit will automatically start or stop sinking energy.
The adjustable LDon and LDoff voltage levels are found within the CONFIG
Menu. Please note that the LDoff level cannot be set higher than the LDon
Level.
Please refer to table 1-4 for adjustment ranges.
3.2.10. /STA key and LED
The DYN button allows the user to switch between DYNAMIC operation and
STATIC operation. Dynamic operation is only possible in constant current (CC) or
Constant power (CP) mode only. The LED next to the DYN button will become lit
When DYNAMIC operation is selected. If you are in constant resistance (CR) or
Constant voltage (CV) mode pressing the DYN button will have no effect.
3.2.11. key and LED
The 3310F series Load Module features 2 setting ranges for CC, CR, CV & CP
Operation. This allows improved resolution for setting low values. When left in the
Default AUTO mode the changeover between ranges is automatic depending on
The setting value entered.
If desired the RANGE button can be pressed to force the unit to operate only in
RANGE II. This is signaled by the accompanying LED becoming lit. Please note
That it is only possible to force RANGE II in CC mode.
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