Weller WHA 30 P User Manual
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COOPER TOOLS GmbH
Carl-Benz-Str. 2 74354 Besigheim 3
Germany Tel: 07143-580-0, Fax: 07143-580-108
3. External Sensor
When using an external sensor (Thermocouple Type K), two different operating modes are
available. By pressing the Control Key "TIME" / "PREHEAT" (5) when switching on the unit (4), you
can toggle between the operating modes "MEASURE MODE" and "CONTROL MODE". The
following appears briefly in the display (1):
THERMOCOUPLE
or
THERMOCOUPLE
MEASURE MODE
CONTROL MODE
Both operating modes only become active once the external sensor (14) has been connected.
3.1 External Sensor with measuring function "MEASURE MODE" (factory setting)
In this operating mode, the external sensor only has a measuring function. The temperature of the
external sensor is shown in the display (1). The Hot Air Tool temperature control regulates the
setpoint value for the nozzle temperature.
External sensor active in "MEASURE MODE"
3.2 Teach In Mode procedure
During the sequence of an automatic temperature-time profile, it is possible to continue switching the
process stages 1-3 manually by pressing the Control Key "TIME" / "PREHEAT" (5). If the external
sensor is suitably positioned on the assembly or component, its temperature can be monitored
during the entire process sequence and can be continued to be switched when the desired specified
temperatures (stage 1-3) have been reached. The times determined in this manner are shown after
the soldering or desoldering process in the display (1) and can be saved.
3.3 External sensor with control function "CONTROL MODE"
The temperature of the external sensor is controlled in this operating mode. The external sensor
records the actual value (control variable) for the temperature control. The setting for the setpoint
value at the unit must therefore be adapted to the measured temperature (actual value) of the
external sensor. The actual value of the external sensor is shown in the display (1).
External sensor active in "CONTROL MODE"
A basic prerequisite for faultless application is direct contact of the sensor on the assembly or
component.
TEMP
AIR
PREHEAT
250 °C
25 l
OFF
TEMP
AIR
PREHEAT
250 °C
25 l
OFF