Lutron Electronics HT-305 Operation Manual Download Page 7

4. GENERAL MEASURING 

    PROCEDURE

The meter default value are :
 * The temperature reading unit is  .

 * The power management is set to auto power

off.

4-1 Humidity and Temperature measurement

1)Plug the " Probe Plug " ( 3-8, Fig. 1 ) into the " Probe

Input  Socket " ( 3-7, Fig. 1 ). 

2)Power on the meter by pressing the " Power Button " 

( 3-2, Fig. 1 ), the LCD shows the unit " %RH " &  "   " 

at the same time and measured value will show on
the display  ( upper display is Humidity value, the
lower display is the temperature value ) .

3)The meter Temp. display unit is defaulted to "   ". If

intend to let the meter's temperature unit default to "   "

, then please refer section 5-1 ( page 9 ).

4-2 Dew point measurement

The procedures of " Dew point measurement " are same
as  the above " 4-1 Humidity and Temperature
measurement " except select the " Dew point " function
by pressing the   " Function Button " ( 3-5, Fig. 1 ) once,
the LCD will show the unit  " DEW " &  "   ( or    ).

The upper display show the Dew point value, the lower
display show the temperature value.

5

Summary of Contents for HT-305

Page 1: ...TER marks a step forward for you into the field of precision measurement Although this METER is a complex and delicate instrument its durable structure developed Please read the following instructions...

Page 2: ...tton 5 3 5 Function Button 5 3 6 Battery Compartment Cover 5 3 7 Probe Input Socket 5 3 8 Probe Plug 5 3 9 Probe handle 5 3 10 Probe head Humidity Temperature 5 4 GENERAL MEASURING PROCEDURE 6 4 1 Hum...

Page 3: ...High accuracy and high precision Dew point measurement Just few panel buttons easy operation Microprocessor circuit assures maximum possible accuracy provides special functions and features LCD with t...

Page 4: ...ity function Data Hold Freeze the display reading Memory Recall Maximum Minimum value Sampling Time Approx 0 8 second Power off Auto shut off saves battery life Operating 0 to 50 Temperature Operating...

Page 5: ...degree Accuracy 0 8 1 5 Dew Point Range 25 3 to 48 9 Resolution 0 1 Range 13 5 to 120 1 Resolution 0 1 Remark Dew Point display value is calculated from the Humidity Temp measurement automatically Th...

Page 6: ...splay 3 2 Power Button 3 3 Hold Button ESC Button 3 4 REC Button Enter Button 3 5 Function Button 3 6 Battery Compartment Cover 3 7 Probe Input Socket 3 8 Probe Plug 3 9 Probe handle 3 10 Probe head H...

Page 7: ...show on the display upper display is Humidity value the lower display is the temperature value 3 The meter Temp display unit is defaulted to If intend to let the meter s temperature unit default to t...

Page 8: ...n 3 4 Fig 1 once the REC MAX symbol along with the maximum value will appear on the display If intend to delete the maximum value just press the Hold Button 3 3 Fig 1 once then the display will show t...

Page 9: ...he upper display will show 1000 1000 is the password code that allow to execute the Advanced Measuring Procedure following After display show COde 1000 push the Enter Button 3 4 Fig 1 once will go to...

Page 10: ...Button 3 4 Fig 1 to confirm and save the selection data into memory IC permanently Press the Esc Button 3 3 Fig 1 will revert to normal display screen 5 2 Auto power ON OFF Use the Set Button 3 11 Fig...

Page 11: ...LCD display show it is necessary to replace the battery However in spec measurement may still be made for several hours after low battery indicator appears before the instrument become inaccurate 2 S...

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