Note: A small battery inside the HHTTFO keeps the time and date running even when the main batteries are not installed or when the AC power module is not used. This small battery has a nominal liffetime of 10 years.
3.2 Making your first meaasurements
To make your first temperature meassurement, do as follows:
•Remove the dust cap on the optical connector of the HHTFO (located on the top of the HHTFO).
•Remove the dust cap on the probe connector.
•If supplied with the HHTFO, connect the short extension cable and from now on, leave it connected so damages to the fiber opticc connector found on the HHTFO unit itself are minimiized.
•Insert the connector from yoour probe into the sensor connector of the HHTFO. Make sure the two mating parts are properly ali gned and twist the connector clockwise to fasten it seccurely.
• Turn your HHTFO on by preessing | for at least one second. The red LED must be on (if not, |
please check your batteries and / or the 6VDC power input). The temperature will be almost immediately displayed, alongg with the date and time. This is shown here:
•Place the sensor tip on a warmer surface (such as your hand): you can observe the temperature variation on the display.
• You can power it down by prressing again this key, for a minimum of half a second: | . |
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