Avtron 2000 Series - Page 9

Avtron 2000 Series Manual Toggle Switch Load Bank • Description Use
r
’s Guide
2-2
MODEL 2500
1. POWER ON/OFF switch – Applies power to the Load Bank and fans.
2. VOLTAGE SELECT switch – Configures load resistor circuit for dual voltage
applications if applicable.
3. MASTER LOAD ON/OFF switch - Allows instantaneous connection and
disconnection of all switched ON load steps.
4. LOAD STEP switches – Connect and disconnect load steps. Load values are shown
above each switch.
MODELS 2600/2700
1. POWER ON/OFF switch – Applies power to the Load Bank and fans. The POWER
indicator lights when power is applied.
2. OVER TEMP indicator – Indicates an air failure/insufficient cooling airflow.
3. VOLTAGE SELECT switch – Configures load resistor circuit for dual voltage
applications if applicable.
4. MASTER LOAD ON/OFF switch - Allows instantaneous connection and
disconnection of all switched ON load steps.
5. LOAD STEP switches – Connect and disconnect load steps. Load values are shown
above each switch.
MODELS 2800/2900
1. CONTROL POWER INTEGRAL TRANSFORMER SELECT switch – Configures the
internal control transformer to the voltage selected and that matches the UUT
voltage.
2. CONTROL POWER INTEGRAL TRANSFORMER ON/OFF pushbuttons –
Energizes the configuration relays for the control transformer to the voltage selected
above.
3. BLOWER VOLTAGE SELECT INT/EXT switch – Used to select the correct voltage
and either from the internal bus or from an external voltage source. If internal, this
switch must match the voltage selected with load voltage select switch.
4. LOAD VOLTAGE SELECT switch – Selects the voltage of the UUT.
5. BLOWER START/STOP pushbuttons – Energizes the fan start/stop circuit.
6. FAN ROTATION ABC/CBA – Used to reverse the rotation of the cooling air fan.
Turn fan off by depressing the BLOWER STOP pushbutton and allow the fan to
come to a complete stop before reversing the fan rotation.