CORNING LSE 6897-FB Buku Petunjuk - Halaman 7

Jelajahi secara online atau unduh pdf Buku Petunjuk untuk Peralatan Laboratorium CORNING LSE 6897-FB. CORNING LSE 6897-FB 12 halaman. Digital dry bath heater

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Also, if you are using very loose or odd shaped vessels, the calibration

function can help you match the display temperature to your actual sample

temperature.

To calibrate the unit for a given block or sample, first turn the unit off using

the On/Off switch. Then place a thermometer of known accuracy* into

the block thermometer hole or a thermocouple or other sensor into your

sample. Make sure there is a good fit between the thermometer and the

block or good contact between any sensor and sample or sensor and block.

To calibrate the block or sample to the display:

1. Press and hold the Start/Stop key, then simultaneously power up the

unit with the On/Off switch.

2. You should hear a "DU-DU-DU" sound from the dry bath and the

display will have one segment flashing on the left and will show a set

temperature, and the right will show adjt.

3. Use the Temperature Up and Down arrow keys to set the desired

temperature at which you want to calibrate the unit. Then press the

Start key.

4. Allow a minimum of 10 minutes (maximum 20 minutes) for the unit to

heat up to your set temperature and to equilibrate at this temperature.

The entire LED display will start flashing when equilibration is reached.

5. After the entire display has started flashing, read the thermometer (or

sensor meter) and use the Up and Down arrow keys to adjust the display

to the thermometer or sensor reading. Then press the Start/Stop key.

6. The unit will then begin to automatically adjust its operating temp-

erature to your original set point with the recalibration factor included.

Allow sufficient time for the unit to re-equilibrate, then compare the

thermometer or sensor reading to the calibrated display again. They

should closely match. If not, repeat the calibration procedure.

7.0 USB Interface

Corning® LSE™ Digital Dry Bath Heaters have a USB unidirectional data port.

A cable and software are available which allow a user to use a desktop or

laptop computer to record and/or print a record of the temperature profile

produced by the dry bath.

*Thermometers used for calibration purposes should have a written calibration certificate

and be traceable back to NIST or other certified body. General lab thermometers are often

not accurate enough for calibration work.