Air-Vac PHS1500, User Manual

Page: 14 / 24

PHS1500/4000 User’s Guide
1029.00.902 12
2.1.3 Alert Operation
The Board Temperature Monitor has an alert function to advise the operator that the board has reached
a desired temperature. The temperature is measured by either a K type thermocouple taped to the board
or the optional IR Probe positioned over an appropriate area of the board.
The PHS1500 has a single Board Temperature Monitor.
The PHS4000 has two Board Temperature Monitors.
The temperature controller displays the temperature of the thermocouple input and controls the alert
indicator / speaker. The temperature displayed is the current temperature of the monitoring thermocouple.
The amber alert indicator will illuminate when the temperature of the sensor (thermocouple or IR probe)
reaches or exceeds the set temperature. If the Alert Speaker switch is in the on position an audible tone
will be sounded when the temperature is at or above the setting. This may be turned on or off at any time
but the alert indicator will always be on when the temperature is at or above the set point.
On the PHS4000 an Alert Select switch allows the operator to select which of the 2 controllers drives the
alert/safety feature.
To adjust the temperature for the alert tone / indication, press and hold the star button to see the set
point. While holding the star button, use the up and down arrows to set the desired set point temperature.
Release the star button to return to normal operation and current temperature.
When using the IR Probe option, an offset is required in the Board Temperature controller. See the
maintenance section for more information on setting this. Do not switch between a regular thermocouple
and the IR probe without setting the offset to the appropriate value.