Operating Manual for Senseca ECO 120-HayTemp Alarm Thermometer

Quick guide from the manual

The Senseca ECO 120-HayTemp is a water-resistant alarm thermometer designed for measuring core temperatures in bulk goods, such as hay and straw. Before use, ensure the device is handled with care, the probe is correctly connected via the BNC connector, and the battery status is sufficient. The device features an alarm function that can be configured for minimum and maximum temperature limits.

Device overview

The device consists of a main unit with a 3-line LCD display and three control buttons:

• On/Off button: Briefly press to switch on or toggle lighting; long press to switch off.
• Up/Down button: Briefly press to view min/max values or change parameters; long press to reset min/max values. Press both simultaneously to rotate the display.
• Function button: Briefly press to freeze measurement (Hold) or call up parameters; long press (2s) to enter the configuration menu.

Operation and configuration

To access the configuration menu, press and hold the Function button for 2 seconds until ConF appears. Use the Up/Down buttons to navigate and change values:

• AL (Alarm): Enable or disable alarm functions (acoustic/visual).
• AL.Lo / AL.Hi: Set minimum and maximum alarm limits.
• PoFF: Configure automatic shut-off time.
• L.tE: Adjust backlight settings.
• Uni t: Select temperature unit (°C or °F).
• Init: Reset device to factory settings.

Adjustment of the measuring input

The device allows for zero point and gradient correction to adjust the temperature input:

1. Switch the device off.
2. Hold the Down button and press the On/Off button to enter the Adjustment menu.
3. t.oF (Zero point correction): Adjust the offset.
4. t.SL (Gradient correction): Adjust the slope in %.

Maintenance and battery replacement

The device uses two AA batteries. When the empty frame in the battery display blinks, replace the batteries. If BAT appears, the battery is fully depleted.

To replace batteries:

• Unscrew the Phillips screws on the back and remove the cover.
• Replace the two AA batteries, ensuring correct polarity.
• Check that the O-ring is clean, undamaged, and properly seated.
• Fit the cover evenly and tighten the screws.

Troubleshooting

• ----: No probe connected, or measurement is outside the range. Check probe connection.
• Err.1: Measuring range exceeded (value too high).
• Err.2: Measuring range undercut (value too low).
• SYS ERR: System error. Try switching the device off and on, or replace batteries.