Owner manual

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Delmhorst Instrument Co.

Model RC-1E

Owners Manual

TABLE OF CONTENTS

1 RC-1E Features

1 Before You Begin

1 Calibration Check

2 Checking the Battery

2 Taking a Reading

3 Temperature Correction Table

4 Species Correction Table

6 Care For Your Meter

7 Service for your Meter

8 Warranty

FEATURES

• Resistance technology recognized world wide as the most accurate method

for measuring moisture

• 6% -80% moisture range

• Analog readout

• Built-in calibration and battery check

• Temperature stable circuit

• One year warranty

• Over 50 years of proven quality, accuracy and service

BEFORE YOU BEGIN

The RC-1E features a three range analog scale (A, B & C) that reads wood

moisture content directly as a percentage of the dry weight in the wood. The

scale covers a range of 6% to 80%. The C scale on the meter is also a 0-100

relative scale and is used for relative readings on non-wood materials.

*NOTE: The numbers in parentheses refer to the RC-1E/SP

CALIBRATION CHECK

To check the calibration, first put the selector switch on the “B” scale. Push the

“ON/OFF” switch to the “ON” position and hold. The meter is in calibration if it

reads “20%” ±1% (23%)±1% or within the green band on the “B” scale. If the

needle does not read within the green band on the “B” scale, it is likely an

indication of low battery power. If this occurs, change the battery immediately.

Summary of content (8 pages)

PAGE 1
Delmhorst Instrument Co.
PAGE 2
Continued use with a low battery may cause the meter to go out of calibration. If you install a new battery and the instrument still does not indicate a proper calibration, return it to DELMHORST for service. See the “Service for Your Meter” section. CHECKING THE BATTERY To check the battery voltage push the “ONOFF” switch down to the “OFF” position and hold. The battery is “OK” if the needle moves beyond “54” (58) (BATT “OK”) on the “A” scale.
PAGE 3
Delmhorst uses the USDA standard-Douglas Fir as the basis for all calibrations. For any species other than Douglas Fir and for wood temperature out of the range of 50°F (10°C) to 90°F (32°C) temperature and species adjustment must be made. Correct for temperature first, then species. See temperature correction table and species correction tables below. The RC-1E can be used for more than just wood. It will also give a relative reading on plywood, OSB, particleboard and MDF.
PAGE 4
Species Correction Table SPECIES ALDER APITONG ASPEN ASH, WHITE BASSWOOD 7 8 8 7 6.5 7 METER READINGS WITH NON-INSULATED PINS 8 9 10 12 14 16 18 20 22 9 10 11 13 15 17.5 19.5 21.5 24 9 10 11 13 15 17 20 22 24 8 9 10 11.5 13 15 16.5 18 20 7.5 8 9 11 13 14.5 16 18 19.5 8 8 9 10.5 13 15 17 19 20.5 24 27 27 21 21 22 BIRCH CEDAR, EAST. RED CEDAR, INCENSE CHERRY COTTONWOOD 8 8 7 8 6 9 10 11 13 15 9.5 10.5 12 14 17 8 9.5 10.5 12.5 15 9 10 11 13.5 15.5 7.5 8.5 9.5 12 14 17 19 17 18 15 19 21.5 23.5 25.
PAGE 5
OAK, WHITE PECAN PINE, LONGLEAF PINE, PONDEROSA PINE, SHORTLEAF 7 6.5 8 7.5 7.5 8 8 8.5 8.5 9 8.5 9.5 10 10 10 9.5 11.5 13.5 15 17 18.5 20 22 11 12.5 14 16 17.5 19 22 24 11 13 15.5 17.5 19.5 21 23 25 11 13.5 15.5 17.5 19.5 21 23 25.5 11 13 15.5 17.5 19.5 21.5 23.5 25 PINE, SO. YELLOW* PINE, SUGAR PINE, WHITE POPLAR, YELLOW RAMIN 8 7 7 8 7 9.5 10.5 8 9 8 9 8.5 10 8 9 12 14.5 16.5 19 21 10 12 15 17 19 10 13 15 17 19 11 13 15.5 17.5 19.
PAGE 6
CARE FOR YOUR METER Ø Store your meter in a clean, dry place. Ø Change the 9-Volt battery as needed. Continued use with low batteries may cause the meter to go out of calibration. Ø Change contact pins on probe as needed. Keep pin retainers hand tightened. Ø Clean the probes with any biodegradable cleaner. Use the cleaner sparingly and on external parts only. DO NOT IMMERSE THE METER OR ANY ELECTRODE IN WATER. Ø Remove the batteries if the meter will not be used for one month or longer.
PAGE 7
SERVICE FOR YOUR METER Ø Before sending in your meter we recommend you give one of our trained technicians a call. Many times troubleshooting can be taken care of over the phone. Call us at 877-DELMHORST. Ø Pack your meter securely. Enclose a purchase order or letter with a brief description of the problem. Ø There is no need to call us for a return authorization number if you are within the U.S. Customers outside the U.S. must contact us for more specific instructions prior to returning a meter.
PAGE 8
WARRANTY Delmhorst Instrument Co., Inc., referred to hereafter as Delmhorst, guarantees its RC-1E moisture meter for one year from date of purchase and any optional electrodes against defects in material or workmanship for 90 days. If within the warranty period of the RC-1E, you find any defect in material or workmanship return the meter following the instructions in the “Service for Your Meter” section.