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Delmhorst Instrument Co HT-4000 Owner's Manual

Thermo-hygrometer
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HT-4000/HT-4000F
Thermo-Hygrometer
Owner's Manual
© 2010 Delmhorst Instrument Co

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Summary of Contents for Delmhorst Instrument Co HT-4000

  • Page 1 HT-4000/HT-4000F Thermo-Hygrometer Owner’s Manual © 2010 Delmhorst Instrument Co...

  • Page 2: Table Of Contents

    Contents 1. Introduction ...................... 2 2. Meter Features ....................3 3. Operation ......................4 4. Meter Use ......................5 5. Specifications ....................9 6. Care for Your Meter ..................10 7. Service for Your Meter ................... 10 8. Warranty ......................11...

  • Page 3: Introduction

    (grains per pound), and vapor pressure. NOTE: THE HT-4000 AND HT-4000F ARE THE SAME INSTRUMENT. THE HT-4000F DESIGNATION INDICATES THE METER IS SHIPPED WITH THE RH/T-S3 SENSOR THAT COMPLIES WITH ASTM F2170 FOR IN-SITU TESTING OF RELATIVE HUMIDITY IN CONCRETE FLOOR SLABS.

  • Page 4: Meter Features

    2. Meter Features – 1. Detachable RH Sensor RH/T sensor inside a long, protective plastic housing with optional extension cable (RH-C1). 2. Display - Easy to read, backlit LCD display. 3. Select Button – Use the center button to confirm a selection. 4.

  • Page 5: Operation

    3. Operation NAVIGATION: The meter uses an on-screen, menu-driven approach to navigate through the meter features, allowing for an intuitive understanding of keypad functions. Each screen presents the user with a number of selectable options. One of the options is always selected and the user can move (navigate) the selection to any other available option.

  • Page 6: Low Battery

    DIN connector. To turn the meter on, press and hold the SELECT button for approx. 2 seconds. The first screen will temporarily display the meter name (HT-4000) and the software revision level. Refer to this revision number whenever you call Customer Service.
  • Page 7 The meter will begin taking readings. As a default setting the RH reading will be the most prominent on the screen. If you would like to make another variable (temperature, GPP/GPK, PSI/KPA or dew point) the prominent reading, use the ...
  • Page 8 TO HOLD METER READINGS ON-SCREEN 1. To hold a reading on-screen while in measuring mode, press the SELECT key. 2. Press the SELECT key again to resume taking continuous readings. MEASURING RELATIVE HUMIDITY IN CONCRETE FLOOR SLABS IN ACCORDANCE WITH ASTM STANDARD F2170 – USE SENSOR RH/T-S3 Select test locations to provide information about moisture distribution across the entire concrete slab, especially areas of potentially high moisture, or if the slab is thick (>4 in.) and air circulation is poor.
  • Page 9 the sensor housing. Check for drift. The meter reading must not drift more than 1% RH over 5 minutes. 6. Alternately, insert the RH sensor into the sleeve immediately after setting the sleeve. Readings can then be taken as soon as the hole has acclimated. The complete ASTM document is available at: http://www.astm.org/Standards/F2170.htm CAUTION - ABOUT THE RH/T SENSOR...

  • Page 10: Specifications

    5. Specifications • Measures RH over the range of 0 - 100% (with accuracy of +/- 2% over 10% - 90%) • Measures temperature over the range of -40°F - 255°F with accuracy of +/- 1.8°F over -4°F - 158F (range of -40°C - 124°C with accuracy of +/- 1°C over -20°...

  • Page 11: Care For Your Meter

    6. Care for Your Meter • Store your meter in a clean, dry place. The protective carrying case provided is an ideal storage place when the meter is not in use. If the meter has been left in a hot or cold environment overnight or for an extended period, allow the meter to acclimate to the temperature conditions in which it will be used for a minimum of 1-2 hours, or as long as possible.

  • Page 12: Warranty

    8. Warranty Delmhorst Instrument Co. 51 Indian Lane East, Towaco, NJ 07082, referred to hereafter as Delmhorst, guarantees its moisture meters against defects in material or workmanship for one year from date of purchase, the RH/T-S1 and RH/T-S3 sensor against defects in material or workmanship for 90 days. Optional electrodes are...
  • Page 13 This warranty extends to the original owner only and is not transferable. Contact info: Delmhorst Instrument Co 51 Indian Lane East Towaco, NJ 07082 www.delmhorst.com Info@delmhorst.com 973-334-2557 For almost 80 years Delmhorst Instrument has been the leading manufacturer of high quality, US-made moisture meters and thermo-hygrometers. Today we offer a wide range of meters for applications including water damage restoration, construction, flooring, lumber/woodworking, paper, and agriculture.

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Ht-4000f

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