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©2003 DELMHORST INSTRUMENT CO. 

 

1 of 1 

Delmhorst Instrument Co. 

Model HT-3000 – Thermo-Hygrometer 

 

Owners Manual

 

 

TABLE OF CONTENTS 

 
 

3 INTRODUCTION 
 
3 OPERATION 
 
3 AUTO-OFF 
 
3 BACKLIGHT 
 
4 LOW 

BATTERY 

 
4  ADJUSTING THE DISPLAY CONTRAST 
 
4 OPERATION 

SUMMARY 

 
5  CALIBRATION & MAINTENANCE 
 
5 TECHNICAL 

SPECIFICATION 

  

Measurement 

  

Accuracy 

  

Response 

Time 

  

Resolution 

  

Power 

Supply 

  

Battery 

Life 

 
6  CARE OF YOUR METER 
 
6  SERVICE FOR YOUR METER 
 
7 WARRANTY 
 

 

 
 
 
 
 
 

Summary of Contents for HT-3000

Page 1: ...LE OF CONTENTS 3 INTRODUCTION 3 OPERATION 3 AUTO OFF 3 BACKLIGHT 4 LOW BATTERY 4 ADJUSTING THE DISPLAY CONTRAST 4 OPERATION SUMMARY 5 CALIBRATION MAINTENANCE 5 TECHNICAL SPECIFICATION Measurement Accuracy Response Time Resolution Power Supply Battery Life 6 CARE OF YOUR METER 6 SERVICE FOR YOUR METER 7 WARRANTY ...

Page 2: ... 2003 DELMHORST INSTRUMENT CO 2 of 2 SCALE ROTATE HOLD ON OFF ...

Page 3: ...the meter memory after power up This allows immediate access to any measured or calculated value even if the data of interest is not currently displayed 4 Press the SCALE F C button at any time to switch Temperature and Dewpoint readings between Fahrenheit and Celsius 5 Press the HOLD button to freeze the displayed readings The letter H appears at the right of the first display line The meter stop...

Page 4: ... mode Press and hold the ON OFF button Keep it pressed throughout the adjustment process 2 To turn the display darker press and hold the SCALE F C button within 2 seconds Release this button when desired contrast is achieved 3 To turn the display lighter press and hold the ROTATE button within 2 seconds Release the button when the desired contrast is achieved 4 Once the desired contrast is achieve...

Page 5: ...ibration is not available for the HT 3000 TECHNICAL SPECIFICATIONS Measurement Temperature 20 C to 70 C 4 F to 158 F Relative Humidity 0 100 RH Dew Point 40 C to 80 C 40 F to 176 F Absolute Humidity 0 55 gpp to 3868 gpp Accuracy Temperature 1 C over 0 C 70 C 1 8 F over 32 F to 158 F Relative Humidity 3 Response time Temperature reaches 80 of full excursion in approx 75 seconds Relative Humidity re...

Page 6: ...ructions prior to returning a meter Include your name address daytime phone and fax numbers or e mail address If you believe the meter is under warranty please provide the original sales slip or invoice Ship via UPS Express Mail Priority Mail or any overnight courier who provides prompt service Do not use standard parcel post Insure your instrument for its full value and ship prepaid We are not re...

Page 7: ...duct or its calibration With proper care and maintenance the meter should stay in calibration follow the instructions in the Care of Your Meter section Under no circumstances shall Delmhorst be liable for any incidental indirect special or consequential damages of any type whatsoever including but not limited to lost profits or downtime arising out of or related in any respect to its meters or ele...

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