Cautions! / Warnings; Description; Placing Into Operation - Weller WHA 900 Mode D'emploi

English
Thank you for placing your trust in our company by
purchasing the Weller WHA 900 Hot Air Station. This product
meets or exceeds the requirements established by Weller
for superior performance, versatility and quality.

1. Cautions! / Warnings!

Please read these Operating Instructions and the attached
Safety Information carefully prior to initial operation. Failure
to observe the safety warnings may result in accident,
injury, or risk to health.
The manufacturer shall not be liable for damage resulting
from misuse of the machine or unauthorized alterations.
Warning: This product when used for soldering and similar
applications, produces chemicals known to the State of
California to cause cancer and birth defects or other
reproductive harm.
Safety Information:
● Always place the soldering iron in its original holder
● Remove all inflammable objects from the proximity of
the hot soldering tool.
● Use suitable protective clothing to prevent the risk of
burns associated with molten solder.
● Never leave a hot soldering iron unattended.
● Never work on electrically live circuits or components.
● Always wear eye protection when working with
soldering and desoldering applications.
The Weller WHA 900 Hot Air Station corresponds to the EC
Declaration of Conformity in accordance with the basic
safety requirements of Directives 2004/108/EC and
2006/95/EC.

2. Description

The WHA 900 hot air station was developed for general
soldering re-work on Surface Mount components. The
temperature of the hot air is controlled electronically and is
variable between 50 °C (120 °F) and 550 °C (1020 °F).
120 VAC (8) is required to operate the unit. The air flow is
variable electronically within the range of approximately
5-50 l/minute and is generated by a self contained pump.
The hot air is activated using the Hot Air Push Button, (5) at
the front of the unit.
The WHA 900 is grounded through the 120 VAC three wire
power cord.
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Standby mode:
This unit has a power-on function to activate a Standby (or
secondary temperature airflow setting). Before switching on
the unit, choose the temperature and the airflow you want
to use for Standby operation.
Activating Standby:
Adjust the Temperature and Airflow control to the desired
setting. Then push the green button while switching on the
unit. Keep the button pressed for approximately 5 seconds.
The pump will start and the Standby function is activated.
Switch the unit off.
When the unit is switched on, the Heater Temperature and
the Airflow will be set to the Standby values. When you
depress the Hot Air Pushbutton the Airflow and Temperature
will go to the actual set values. Push the button again and
the unit will go back to the Standby values.
Deactivating Standby:
If the Standby function is activated, press the Air Control
pushbutton while switching on the unit. Keep the button
depressed for about 5 seconds. The unit is now in the
original operating mode.

3. Placing Into Operation

Place the hot air pencil in the safety rest. Check to be sure
the supply voltage is consistent with the information on the
station label. Before connecting to the 120 VAC power
source, set the desired temperature (2) and the air flow on
(3) and switch on the unit at the power switch (4). The LED
will flash slowly to indicate the unit has reached the Set
Temperature. The Airflow and Temperature are activated
after depressing the push button. Heat time of the nozzle
depends primarily on the size of the nozzle and the air flow.
Warning: Do not direct the hot air pencil at people or
flammable objects.