6. OPERATION
Controls and displays
Controls
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The front panel of the Hakko 942 soldering
station has the following controls:
•A power on/off switch.
• Four control buttons:
– Initiates a data entry mode.
– End of sequence signal (terminates a
phase of a data entry mode); when
pressed for less than one second,
displays settings already stored.
– increases the value in the appropriate
display window .
– decreases the value in the appropriate
display window .
1. Turn the power switch ON.
2. Once the temperature is reached, the buzzer
sounds. The heater lamp at the lower right of
the temperature display starts
blinking.
CAUTION:
Place the iron in the iron holder when not in use.
CAUTION:
The Hakko 942 is preset at 350 °C. at the factory .
Check the temperature setting by pressing the
button.
The set temperature will be displayed for two seconds.
Displays
The Hakko 942 has a three-digit display
element. Depending upon the selected mode, it
will display:
• Normal mode:
Sensor temperature (tip temperature)
• Data entry:
Selected quantity (see ‘data entry procedures’
for exact characteristics)
• Temperature scale:
°C or °F, depending upon selection
• Error detection:
Refer to ‘ERROR MESSAGES’ section
In addition, a single heater lamp will flash when
the station has reached the desired temperature,
indicating that it is ready for use.
An audible buzzer is provided to alert the
operator when:
1. The station has reached the set tempera-
ture. The buzzer will sound once.
2. The low temperature threshold has been
crossed. This buzzer will shutoff when the
sensed temperature returns to the
acceptable range.
3.A failure has occurred in the sensor or heater
(including the sensor circuit). The buzzer will
sound continuously.
4.The auto power shutoff is activated and the
power to the heating element is shutoff, the
buzzer will sound three times.
Heater lamp
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DOWN
6
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