BD-2100 owner’s manual For 65 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. . WHEN ACCURACY IS THE POINT ® TM 51 Indian Lane East Towaco, NJ 07082 (877)-DELMHORST (3 3 5 - 6 4 6 7 ) www.delmhorst.com info@delmhorst.com ® ©1999, Delmhorst Instrument Co.
TABLE OF CONTENTS 2 BD-2100 Features 3 Section A – Before You Begin 3 Check Calibration 4 Set the Scale 4 Change the Set-Point 5 Information about Your Readings 5 To Check Accumulated Readings 6 To Reset Meter 6 Section B – Practical Applications 6 Testing Wood 7 Paint Failure and Moisture 8 EIFS (Exterior Insulation & Finish Systems) 8 Testing Gypsum/Drywall 9 Using the 0-100 Reference Scale 9 Testing Plaster Walls 10 Testing Concrete Slabs for Flooring Applications 12 Testing Brick or Concrete for Paint A
DELMHORST BD-2100 The operating instructions for the model BD-2100 are divided into two sections. Section A is a step-by-step guide to the different features and basic use of your moisture meter. Section B contains information on how the meter is used for testing different materials.
A hard Reset is required if, after changing the battery, the display is frozen. This is sometimes caused by the interruption of contact between the battery and battery lead wire. Resolve this as follows: Disconnect the battery. Press and hold the Read key for 15 seconds. Release the Read key. Press and hold the Check key for 15 seconds. Release the Check key. Connect a fresh battery to the lead wire in a single action, making sure to align the poles properly and without interrupting contact.
TO RESET METER hPress and release the calibration check key @. hWithin one second press the scale key #. hThe meter will reset itself the default setting of Scale #1 (wood) and 15% set-point, and clear all the readings stored in memory. hResetting the meter will erase any previously stored readings. SECTION B PRACTICAL APPLICATIONS TESTING WOOD hSet the scale to #1 Wood hAlign the contact pins ^ parallel to the grain and push them into the wood to their full penetration, if possible.
hSiding and shingles without sufficient lap so that water is forced up through cracks by wind pressure hIce dams hCondensation of vapor within hollow walls EIFS (Exterior Insulation & Finish Systems)* Moisture intrusion problems in EIFS (also known as synthetic stucco) stem from leaking window frames, improper use or lack of sealant, and faulty installation of flashing. If you suspect a problem take a visual inspection.
hDrive a pair of nails into the plaster at least 1/3 of the total thickness of the plaster. If you are applying plaster to a material of unknown dryness, such as brick or concrete, drive the nails through the plaster and into the brick or concrete. hTouch the heads of the nails with the contact pins the meter. ^ and read the green or “dry” area, the surface is dry. However, subsurface tests should be made to verify if the slab is dry throughout.
Testing Brick or Concrete for Paint Application To trace the origin of a leak: Brick, stucco, or concrete surfaces must be dry at the time of application and must remain dry after paint is applied or failure of the paint film may occur. These materials are frequently exposed to unusual moisture conditions that allow them to absorb moisture through some exposed surface or some structural defect.
The presence of moisture in insulating material greatly reduces its insulating properties. If the insulating material absorbs moisture, water will displace the air in the material. Water also transmits heat at a faster rate than air, thus reducing the efficiency of the insulation. Side walls and roof insulation pick up moisture because of leaks in the roof or structural defects in the side walls which allow storm water to be forced in during high wind.
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˚C -20 -10 5 15 30 40 50 60 70 80 95 105 ˚F 0 20 40 60 80 100 120 140 160 180 200 220 6 9 8 7 6 6 5 5 4 4 3 3 2 7 11 10 8 7 7 6 5 5 4 4 4 3 TEMPERATURE CORRECTION TABLE METER READINGS 10 15 20 25 30 15 22 31 38 45 14 20 28 34 40 12 18 24 30 36 11 16 21 27 32 9 14 19 23 28 8 12 17 21 25 7 11 15 19 22 7 10 14 17 20 6 9 12 15 18 5 8 11 13 16 5 7 10 12 14 4 6 9 11 13 35 53 47 42 38 33 29 26 23 21 19 17 15 40 55 48 43 38 34 30 27 24 22 19 17 50 60 54 47 42 38 34 30 27 24 21 55 50 44 40 36 33 28 26 Moi
WOOD SPECIES CORRECTION TABLE METER READING ALDER APITONG ASPEN ASH, WHITE BASSWOOD BIRCH CEDAR, EAST. RED CEDAR, INCENSE CHERRY COTTONWOOD CYPRESS ELM, AMERICAN FIR, DOUGLAS FIR,RED FIR, WHITE GUM, BLACK GUM, RED HEMLOCK, WESTERN HACKBERRY HICKORY KERUING LARCH MAGNOLIA MAHOGANY, AFRICAN (ALSO KHAYA) MAHOGANY, HOND. MAHOGANY, PHIL. MAPLE, HARD/SOFT MERANTI, DARK RED OAK, RED OAK, WHITE PECAN PINE, LONGLEAF PINE, PONDEROSA PINE, SHORTLEAF PINE, SO.
