The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice. WARNING: These products are not designed for use in, and should not be used for, human applications.
Introduction Thank you for purchasing model HH147, RS232 Data Logger Thermometer. Please take a few minutes to browse through this user manual before you begin to operate the unit to ensure that you are fully familiarized on how to best operate the meter.
Features 1. Displays maximum value for four temperatures. 2. Resolution: 0.1°C/0.1°F, 1°C/1°F. 3. Swift response. 4. Alert temperature range, setting. 5. Auto power off function. 6. Low batttery indicator function. 7. Perpetual calendar function. 8. “Count” function. 9. T1-T4 exchange to main display function. 10.
General Specifications 1. Display Mode: Four-digit liquid crystal display. 2. Polarity indicator: No indicator is shown when readouts are in the positive value while the symbol “-” is prompted when readouts fall into the negative value. 3. Overload indicator: “OL” or “-OL” is displayed. 4.
Operation : Power ON/OFF Key. Press the power button to turn the power ON or OFF. 2. °C/°F/K: The Temp. Unit Selection Key. Press the key to sequentially alternate the three temp. units of °C, °F, and K. 3. HOLD: The Readout Hold Function Key. Press the “HOLD”...
Operation 5. REL: The Minus Relative Readout Function Key. Press the “REL” key, a “REL” icon will display on the LCD and the original temp. will go to 0 and save the original temp. to make a standard value. Whenever the input temp. shifts, the LCD will show the minus value of the original temp.
Operation 13. LIMIT: To Enforce Alarm Function Key NOTE 1: The alarm will continue to be activated when the main display temp. value is higher than the alarm setting Hi temp. value or lower than the alarm Lo setting value. The Hi/Lo setting temp.
Operation 1. RS-232: When you turn on the “RS-232” function the auto power off and the power off will be cancelled. 2. REC: When you turn on the “REC” function the reading value of the meter will transmit the settlement of interval in time, and will write down in the memory in real time.
RS-232 Software Installation Procedure 1. Place CD-R into the CD-ROM driver. 2. Installation may be automatic or manual in accordance with your personal software. The manual installation is: A. Pushing my computer, the mouse clicked two times. B. Pushing the CD-ROM driver, the mouse clicked two times.
Battery Replacement 1. The symbol “ left of the LCD display indicates that the battery is running low. Please replace the AAA battery at once to ensure the test accuracy. 2. Remove the battery cover with a screwdriver. 3. Replace the old batteries with four new AAA batteries and lock the battery cover.
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