2. Pressing PEN HOME will scroll to the next alarm options:
• Pen 1 alarm minimum
• Pen 1 alarm maximum
• Pen 2 alarm minimum
• Pen 2 alarm maximum
In order to set pen alarm minimums and maximums, pressing Adjust-Up will increase the alarm value, and pressing
Adjust-Down will decrease the alarm value. There is acceleration if the Adjust-Up button is held down.
Repetitively pressing the Pen Home button will scroll through the five options until the Alarm button is pressed to exit
from alarm adjust. Each press of the Pen Home or Alarm button will store the new settings. The unit will take one minute
to exit Alarm Set Mode once the Alarm button is pressed.
3. If the alarm is triggered, the LED will show as solid red and the alarm will sound. Press the Alarm button to silence the
audible alarm.
Alarm Relays
The SPST 24V 500mA relay contacts are normally open and will close on alarm conditions when the alarms are enabled.
Relay contacts are always functional when the alarm is enabled. The relay will close only during minimum and maximum
alarm conditions. Two pen models have 2 sets of relay contacts which operate independently. Relays will not operate under
battery only power conditions.
Dip Switch Setup
To set up the TH8 recorder for your specific application, you might need to change some of the “Dip Switches”. The Dip
Switches are located on the back of the unit. Use a pen or small screw driver to flip the switches. Remember to install the
correct chart to match the corresponding Dip Switch setting.
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