Hanna Instruments Checktemp HI98501 Digital Thermometer Instruction Manual

1. Introduction

The Hanna Instruments Checktemp HI98501 is a high-accuracy digital thermometer designed for precise temperature measurements across a wide range. Its robust stainless steel penetration probe makes it suitable for use in semi-solids, liquids, and various laboratory applications. This manual provides essential information for the proper setup, operation, and maintenance of your Checktemp thermometer.

2. Product Overview

The Checktemp HI98501 features a clear digital display, ensuring easy readability without parallax errors. It incorporates a unique CAL Check function for automatic calibration verification upon startup, ensuring consistent accuracy. The device is IP65 water-resistant and HACCP compatible, making it a reliable tool for various professional environments.

Key Features:

• High accuracy: ±0.2°C (±0.5°F).
• CAL Check function for automatic calibration verification.
• User-selectable °C/°F status.
• Large digital display with wide viewing angle.
• IP65 water-resistant protection.
• HACCP compatible for food safety applications.
• AISI 316 stainless steel penetration probe.
• Long battery life (3000 hours continuous use).
• Adjustable Auto-Off feature (8 min, 60 min, or disabled).

Image: The Hanna Instruments Checktemp HI98501 Digital Thermometer shown in its original packaging, alongside its instruction manual. A yellow warning label is visible, advising to remove the battery safety strip before use.

3. Setup

3.1 Initial Battery Activation

Before first use, it is essential to activate the battery. The device is shipped with a safety strip to prevent battery drain during storage.

1. Locate the battery compartment cover, typically on the back or bottom of the thermometer.
2. Carefully remove the battery compartment cover.
3. Identify and remove the plastic safety strip inserted between the battery and its contact.
4. Replace the battery compartment cover, ensuring it is securely fastened to maintain water resistance.

Your Checktemp thermometer is now ready for operation.

4. Operation

4.1 Taking a Measurement

1. Press the ON/OFF button to power on the thermometer. The device will perform a CAL Check upon startup.
2. Insert the stainless steel penetration probe into the substance to be measured (e.g., semi-solid food, liquid). Ensure the probe tip is fully immersed for accurate readings.
3. Wait for the reading on the digital display to stabilize. The temperature will be shown in the selected unit (°C or °F).
4. After use, clean the probe thoroughly as described in the Maintenance section.
5. Press the ON/OFF button again to turn off the thermometer, or allow the Auto-Off feature to activate.

4.2 CAL Check Function

The Checktemp features an automatic CAL Check function. Upon startup, the thermometer verifies its calibration. The display will show "0" if the calibration is within acceptable limits, or "Err" if an error is detected. This ensures reliable measurements every time.

4.3 Temperature Unit Selection (°C/°F)

The Checktemp allows users to select between Celsius (°C) and Fahrenheit (°F) temperature units. Refer to the device's specific button or switch for changing the unit, typically a dedicated button or a combination press during startup.

4.4 Auto-Off Feature

To conserve battery life, the Checktemp includes an Auto-Off feature. This can be set to turn off the device after 8 minutes, 60 minutes, or can be disabled entirely. Consult your device's specific instructions for adjusting this setting.

5. Maintenance

5.1 Cleaning

After each use, especially when measuring different substances, clean the stainless steel probe thoroughly. Wipe the probe with a clean cloth and a mild detergent solution, then rinse with clean water. Ensure no residue remains on the probe. The main body of the thermometer can be wiped clean with a damp cloth.

5.2 Storage

Store the thermometer in a clean, dry place away from extreme temperatures and direct sunlight. Always ensure the probe is clean and dry before storage.

5.3 Battery Replacement

The Checktemp HI98501 uses 1 AAA battery. When the battery indicator appears on the display or the device fails to power on, replace the battery:

1. Turn off the thermometer.
2. Locate and open the battery compartment cover.
3. Remove the old AAA battery.
4. Insert a new AAA battery, observing the correct polarity (+/-).
5. Securely close the battery compartment cover.

Dispose of used batteries according to local regulations.

6. Troubleshooting

• Device does not turn on:
  • Check if the battery safety strip has been removed.
  • Ensure the battery is correctly inserted with the proper polarity.
  • Replace the battery with a new AAA battery.
• "Err" message on display during CAL Check:
  • This indicates a potential calibration issue. Contact Hanna Instruments customer support for assistance.
• Inaccurate or fluctuating readings:
  • Ensure the probe tip is fully immersed in the substance.
  • Verify the probe is clean and free from residue.
  • Allow sufficient time for the reading to stabilize.
  • Check for any physical damage to the probe or device.
• Display is blank or dim:
  • The battery may be low. Replace the battery.
  • Ensure the device is not exposed to extreme temperatures outside its operating range.

7. Specifications

8. Warranty and Support

Hanna Instruments products are manufactured to high standards and are warranted against defects in materials and workmanship. For specific warranty details, please refer to the warranty card included with your product or visit the official Hanna Instruments website.

For technical support, service, or replacement parts, please contact Hanna Instruments customer service. You can find contact information on their official website or through the Hanna Instruments Store on Amazon.