Hampshire Controls Corp.
Revision 1.2
Temperature Transmitter Operating Instruction
Page 12 of 21
©2014
Operating the Display
You may view the current temperature on the display at any time by tapping the DISP/PROG
button. Tapping the button repeatedly will sequence through the following readings:
The current temperature.
The minimum temperature since the last RESET.
The maximum temperature since the last RESET.
Finally the average battery (cell) voltage during the past
hour. Nominal cell voltage should range from about 1.150 to
1.800 for AA size 1.5V Alkaline or Lithium batteries. At
voltages near 1.150, the low battery alarm will be activated.
If the DISP/PROG button is tapped again it will cycle back to the current temperature. If the
button is not tapped for a period of 5 seconds at any time, the display will turn off.
NOTE: The “current” temperature is updated every three minutes during normal operation, just
prior to the wireless temperature transmission. Pressing the DISP/PROG button does not cause
the sensor to take a new probe temperature reading.
Min/Max Reset
The minimum and maximum temperature readings can be reset by pressing-and-holding the
MUTE/CAL button at any time during the normal operating mode. You may release the
MUTE/CAL button after you hear a short beep. The min/max values will also be cleared when
the RESET button is pressed, or when the batteries are changed.
Constant Display
If you would like to have continuous display of the current probe temperature, the option is
available. To toggle the constant display setting, you first must enter the Programming Mode
(see page 15) by pressing-and-holding the DISP/PROG button for 5 seconds, until you hear a
short beep. Release the DISP/PROG button and then press-and-hold the MUTE/CAL button for
5 seconds. After you hear one beep for enable or two beeps for disable, you may release the
MUTE/CAL button. Program Mode will exit and the display will either be blank, or will
continuously display the current temperature, updated every three minutes.
Battery life will be decreased by approximately one month when using this feature.
