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Q: How long does my meter calibration last and how frequently should I have my meter calibrated?
There is no set calibration schedule for our moisture meters. If the meter is used regularly, we recommend changing the battery at least every 3-6 months as this will help keep calibration indefinitely. Multi-function meters (pin/pin less/RH/T) may require more frequent battery replacement if the SCAN mode is used regularly.
Meter storage and usage temperatures may also affect battery life and so, calibration. Extreme temps in either direction will shorten battery life. We recommend removing the battery if the meter will not be used for 30 days or more. The user can check the calibration in the field by using an appropriate MCS (Moisture Content Standard) that we have available. Many meters have built-in calibration checks, as well.
Thermo-hygrometers can be returned to us for calibration checks and repair as needed or checked in the field using available salts solutions or a known reference sensor. If field testing of the sensor shows it to be out of calibration, the sensor should be replaced with a new one.
Q: Why should I use a moisture meter?
Structurally sound and beautiful in appearance, wood is the ideal raw material. Flooring professionals know that moisture content is the single most important factor affecting the quality of a wood flooring installation.
To ensure quality from the manufacturer to the final installation, a quality moisture meter is essential to minimize defects such as shrinkage, cracks, and splits. Years of experience, high-tech tools and premium grade wood cannot make a difference if moisture content goes unchecked.
Q: What are the different types of moisture meters?
There are two types of moisture meters commonly used in lumber and woodworking applications: Conductance or pin meters, and capacitance (RF) or pinless meters.
Pin meters use the board as an element in a circuit by driving two pins or electrodes into it. This method works because moisture conducts electricity well and dry wood is an effective insulator.
Most pinless meters are capacitance or impedance based, which use the relationship between the moisture content and the dielectric properties of the wood.
These electrical properties of wood change in direct proportion to its moisture content, within a specific range. The meters work best from fiber saturation point (25 to 30%) down to 6% for conductance meters and about 5% for capacitance meters.
Both meters are calibrated in accordance with ASTM D 4444 and are based on the oven-dry weight of the wood.
Each meter technology may be appropriate for different applications, and some use both. Before choosing a meter, it is important to understand the differences and choose the type of meter best suited for your particular application.
Q: Which type of moisture meter works best for flooring installations, inspections and troubleshooting?
A pin meter is the best way to identify the exact location of moisture in sub-floors. The key to finding hidden moisture is to use an electrode with insulated contact pins. These pins read only at their non-insulated tips, allowing the contractor to drive the pins into the floor and through to the sub-floor, noting readings at each level of penetration.
To quickly identify wet areas in floors, pinless meters are easy to use. They offer the convenience of testing a large area quickly, and help you determine if further testing is required. A pinless meter may also be used to determine if water-born finishes are dry and ready for a second application.
Q: What are the ideal moisture conditions for the sub-floor and wood flooring?
Flooring strips or planks - and the sub-floor - should be brought to equilibrium before installation. Best results are obtained when the wood sub-floor is within 4% MC of the flooring.
If the floor is on concrete, especially a slab on grade, be sure that the slab is dry and not likely to pick up moisture later. Use ASTM recommended testing standards for concrete slabs to ensure the slab is ready to accept a covering.
Q: Are the board width limitations in using moisture meters?
Board width is not a limiting factor when using a pin type moisture meter. As long as the pins make good contact, the meter can be used on material from small dowels to wide planks.
For accurate results with a pinless meter, the material under test must be at least the width of the scanning area of the meter. If the meter overlaps the edges of the board, this ‘edge effect’ can cause lower readings than actual.
Q: How do I determine if the moisture problem is in the finished flood or the sub floor?
Use a pin type meter with insulated contact pins. Take several readings in the layer just below the surface; then make a series of core readings, closer to the center of the floorboard thickness. After you have noted these readings, hammer the pins through the flooring material until you make contact with the sub floor.
If your readings throughout this process are uniform, then there is not a moisture problem. If readings increase as you go further into the floor, and again in the sub floor, this indicates that the sub floor is the likely source of moisture.
Q: How far should I drive non-insulated pins into wood?
When using non-insulated pins, penetrate to full depth if possible. At moisture levels below 10%, it is usually sufficient to make good, positive contact with the wood. At higher levels of moisture and especially if you have a steep gradient, full penetration is a must. Otherwise, you can have discrepancies between meter readings and actual moisture content of as much as 5 or 6 points, especially in the range above 20%. For the best results in such cases, use insulated pins.
Q: Is there a difference in readings between insulated and non-insulated pins?
The original Delmhorst calibration was developed with a 4-pin electrode - four non-insulated steel pins, with 5/16in penetration in samples with uniform moisture distribution. Insulated pins read lower than non-insulated ones so for best accuracy, a small correction is necessary. The default calibration for Delmhorst meters is for non-insulated pins, unless specified otherwise. Most meters are programmable with calibration for both insulated and non-insulated electrodes.
Q: How does temperature affect the accuracy of meter readings?
After moisture content, wood temperature is the most important factor affecting the accuracy of your pin meter readings. As wood temperature increases its electrical resistance decreases and indicated moisture content rises. The lower the temperature, the lower the indicated moisture content.
Delmhorst meters are calibrated at 70° F (20° C). In field use, no correction is necessary if the wood temperature is between 50° F and 90° F. If the temperature correction is not built in the meter, use the chart supplied with each meter to make the correction.
The temperature of the wood does not affect pinless meters, unless the lumber is frozen.
Q: How do Delmhorst meters correct for species variations?
Because the electrical characteristics of different species vary, all species read differently at the same moisture content. For best accuracy, a correction is required to the pin meter reading. Delmhorst uses the USDA standard, Douglas Fir, as the basis for all calibrations. Most meters have species corrections built into the firmware. The correction can also be made manually, through a chart.
Pinless meters also yield different readings for different species but are most influenced by the specific gravity. Refer to the chart supplied with the meter or apply the appropriate SG setting if the meter has it programmed in.
Q: What about corrections for species that are not in the meter or the charts?
We maintain a database with calibration data for a wide variety of species. Refer to our handy species look-up tool where you can enter the common or trade name, or the botanical name of the species to find an equivalent correction. www.delmhorst/lookup.com
If you still do not find a correction, call us for assistance at 877-DELMHORST (335-6467). Other sources are the USDA Forest Products Lab in Madison, WI – info@usda.fpl.gov OR The Wood Database – www.wood-database.com
Q: Does the glue used in plywood affect meter accuracy?
In most cases, yes. To verify this, use insulated pins to take readings by touching the outer ply, glue lines, and center ply. A clearly elevated reading in the glue indicates the glue is conductive and causing a “high” reading. If the glue reads the same as the plywood, use the meter on plywood as you would any solid material and take the readings at face value, or with species correction if known.
Q: How do I keep a Delmhorst meter in good working condition?
Delmhorst moisture meters are well known for their ruggedness and ability to withstand years of demanding use. Like any testing instrument, a little care goes a long way toward trouble-free service:
- Store the meter in its carrying case in a clean, dry place
- Change batteries frequently and pins as needed
- Keep the meter and electrode clean by using any biodegradable cleaner sparingly on external parts only.
If you have any questions on selecting the best meter for your application or using your moisture meter, please call us at 877-DELMHORST (335-6467) or click CONTACT US.
Q: Why should I use a moisture meter for a water-damage structure?
The only way to ensure you are properly drying a structure after water damage is to monitor the drying process with a quality moisture meter. Even if you have the most advanced drying equipment, you cannot be sure they are working effectively without the use of a moisture meter and thermo-hygrometer.
An industrial-grade moisture meter provides accuracy, reliability and an overall professional image that you and your customers deserve. A Delmhorst meter is an investment that will pay dividends for years to come.
Q: How does a moisture meter work?
There are two types of moisture meters typically used in the water damage restoration industry. Pin type meters, which utilize the principle of electrical resistance, use wood, drywall or other hygroscopic materials as an element in a circuit by driving two pins or electrodes into it.
Pinless meters use radio frequency signals to penetrate the material being tested. There is no pin intrusion into the surface of the material under test.
Q: When do I check the moisture of a structure?
As soon as you arrive at a jobsite. It is crucial to check moisture levels in both obviously water-damaged areas and areas that were not exposed to water. This enables you to establish a benchmark or target moisture level to reach at the end of the drying process. Use the meter continuously while drying, to confirm the drying progress, and again before signing off. Remember, without a moisture meter, you have no way of knowing that you have dried the structure properly to "pre-loss" conditions.
Q: What areas of structure can be monitored using a moisture meter?
Check any area that has been exposed to water damage, namely wood floors, sub-floor, joists, studs or paneling. Also check for moisture in concrete sub-floors, drywall, insulation and behind trim and moldings.
Because Delmhorst moisture meters have different scales to measure moisture levels in wood, drywall, and other non-wood building materials, it's easy to check all these areas with one moisture meter.
Q: How can I check moisture levels behind baseboards and trim molding without removing them?
Use our 19-E/STC electrode. The flat blades of this electrode can be slid easily between the wall and trim, making it easy to check these hard-to-reach places, while leaving everything intact.
If you have any questions on selecting the best meter for your application or using your moisture meter, please call us at 877-DELMHORST (335-6467) or click CONTACT US.
Q: What is an optimal moisture level to minimize defects?
Acceptable moisture content levels depend on the final use of the wood and the in-service environment. Wood for fine furniture should be dried to 6 to 8% in most areas of the country, with very little variation among pieces and between the shell and core. (Figure II)
Appropriate moisture content is also climate driven. To determine the attainable moisture content - or equilibrium moisture content (EMC) - in your part of the country, hang small, thin samples of the wood species you are working with in your shop or plant and take daily moisture readings. When the moisture content remains constant, the samples have reached the equilibrium level. It is safe to work with the wood without fear of degrade if within +/-2% of its EMC. This level will change from season to season, but you'll know the range within which to work. (Figure III)
Q: How do I determine the distribution of moisture in a board?
The Delmhorst 26-ES electrode with insulated pins is the sure way to detect a moisture gradient. Take a few shell readings in the layer just below the surface; then take a few core readings, closer to the center of the board thickness. Readings should be taken in the middle 1/3rd of the board face and 10-12” from each end.
Since the pins’ tips are not insulated, two or three quick readings at different levels of penetration will indicate if the board is well seasoned, or properly dried. A normal gradient usually develops from the wetter core to the drier surface, with an average reading at between 1/4 to 1/5 of the board thickness. Even non-insulated pins, which measure the wettest fibers, will provide a good indication of how the wood is drying.
If you are using non-insulated pins, push the pins just about 1/16" into the surface, read the meter, and then push the pins to their full depth. For kiln-dried stock, the final reading should be between 6 and 12%; with your first reading about 1% lower. For air-dried stock, the final reading is typically between 12 and 19%, with the first reading between 2 and 3% lower. Meter readings outside of these ranges indicate that the board is poorly seasoned.
Pinless meters scan through the cross section of a board taking into account the moisture in the entire penetrated area. If there is moisture on the surface, the reading will be skewed to reflect this surface moisture. If the surface is dry and core moisture is present, the readings will be lower than the representative moisture levels throughout the board.
Q: Does surface moisture affect a Delmhorst meter reading?
Moisture caused by exposure to rain, fog or high relative humidity is easily and accurately detected with insulated pins since you can bypass the surface and drive the non-insulated tips to the desired depth.
If you're using non-insulated pins, push them 1/16" into the wood and read the meter. Then push them to their full penetration. The meter reading should increase by 1 to 2 points, just because of the greater contact. If there is no increase, or the increase is less than 1%, the wood is wet on the surface and the below surface readings are unreliable.
Pinless meter readings are affected by surface moisture, making it difficult to determine if the surface moisture is a result of rain or dew, or if it is representative of the moisture content throughout the board.
Q: Does a group species correction provide an accurate meter reading?
Species corrections are most accurate when handled as an individual correction, either through the firmware or a species correction chart. The group correction is adequate for practical purposes, as long as the correction is close to the individual factor for the species. Some softwood species (SPF, Southern Yellow Pine) are grouped together for processing and marketing as their properties are similar and growing regions overlap. Group corrections for these species are well established and widely used.
Q: What about corrections for species that are mnot in the meter or the charts?
We maintain a database with calibration data for a wide variety of species. Refer to our handy species look-up tool where you can enter the common or trade name, or the botanical name of the species to find an equivalent correction. www.delmhorst/lookup.com
If you still do not find a correction, call us for assistance at 877-DELMHORST (335-6467). Other sources are the USDA Forest Products Lab in Madison, WI – info@usda.fpl.gov OR The Wood Database – www.wood-database.com
If a species correction is not available, or the species is unknown, the moisture meter can still be a valuable tool by using it to establish the Equilibrium Moisture Content (EMC) using one of the following simple methods. These can be especially helpful if the necessary lab equipment and/or the time to conduct a proper oven test is not available.
- Prepare a few small samples approximately 6in long x 2in wide x ¼ to ½in thick. Leave them in the environment in which you will be working. Set the moisture meter to its basic parameters - species Douglas Fir, temperature 70° F , electrode or pins to non-insulated (444). Read the MC of the samples every few days, until the moisture readings no longer change. At that point the species will be at equilibrium moisture content with the environment and in most cases, if you work with tolerances of +/- 2%, the wood should be defect-free.
- Prepare samples of both a known species and the unknown species per instructions above. Leave them in the environment in which you will be working. Take readings on both sample sets using the known species settings (and temperature and pins settings) on the meter. When all the samples reach equilibrium there will be no further changes in readings. Use the differential (+ or -) between the known and unknown samples for the species correction for the unknown species.
Q: How many measurements are needed for a accurate sampling?
Accuracy of the readings depends on how representative the samples are of the entire load. In an ideal situation, when all the boards in a load have the same moisture content, and the distribution in each board is uniform, only a few readings are needed.
But since this ideal condition doesn't often happen, start by checking a large percentage of pieces. If the readings are within close range, it's apparent that the load is uniform. For critical use, check 5 or 10% of the load, and be sure to look at boards from all parts of the load. Check slower drying quarter sawn boards as well as flat sawn lumber. If you can only drive pins into the edge, be sure to use the longest pins available to reach the fibers as deep as the board is thick.
The Delmhorst JX-30 and RDM series moisture meters with data collection and statistical analysis capabilities are ideal for simplifying the entire sampling procedure and providing backup documentation.
To ensure quality, from the mill and dry kiln to the finishing floor, Delmhorst moisture meters help minimize defects such as shrinkage, cracks, and splits. Years of experience, high-tech tools and controls, and premium grade lumber cannot make a difference if moisture content goes unchecked.
Q: Are Delmhorst meters accurate on frozen lumber?
As long as the wood is not frozen solid and remains conductive, a pin meter will give reliable readings. However, most instruments, unless specifically designed for extreme weather conditions, will not work well in constant sub-freezing temperatures.
Q: What about the chemicals is treated lumber?
Studies and our experience have shown that you can use a Delmhorst pin meter with confidence up to about 20% with most of the preservatives widely used today. At higher MC levels, chemically treated lumber tends to yield somewhat erratic readings.
Q: What about particleboard and other manufactured materials?
Chemical additives may or may not affect meter readings. Use the meter to make qualitative, comparative readings. If greater accuracy is required, contact Delmhorst for help to develop a specific calibration.
Q: How do Delmhorst meters handle readings on rough-surfaced lumber and cupped boards?
If using a pin meter, just drive the pins as you would normally, parallel to the grain, ensuring firm, positive contact and detect unknown gradients. Pinless meters, however, should have full contact with a flat surface so their readings on some uneven surfaces may be unreliable.
Q: What happens if bring a Delmhorst meter into a dry klin?
Moisture meters, like most precision instruments, are sensitive to moisture. We do not recommend taking a meter into a kiln for more than a few quick readings, especially from cold surroundings. Warm up the meter and electrode to a maximum 100°F, so that the higher temperature and moisture levels in the kiln will not immediately affect the meter. If you don't acclimate the meter, readings will be erratic at best.
While Delmhorst meters are built for the harsh mill environment, continued exposure to high heat and humidity will invite corrosion and shorten the life of a meter's display and PC board components.
Q: How can I monitor moisture content during drying without going into the klin?
The Delmhorst Kil-Mo-Trol® is a remote probe system that measures the moisture content of lumber during the drying process. Resistance probes or contact pins are located at various "stations" throughout the lumber packages to monitor shell and core, or core only moisture content readings. This technique is proven for both hardwood and softwood drying and can be used in any type of dry kiln, pre-dryer, or air-drying operation. For more information about Kil-Mo-Trol®, please follow this link. www.delmhorst/kilmotrol
Q: How does static electricity affect meter readings?
In cold and/or dry climates, static charges may cause erratic meter readings especially in the range below 8%. Measuring such high resistance under these conditions is difficult and the winter climate can make it more so. The analog meter pointer "jumps" all over the scale or the digital display may flash erratic numbers. To minimize the effect of static:
- Try not to let the electrode cable dangle.
- Drive the electrode pins into the wood with the electrode disconnected. Connect the electrode when you are ready to take the reading.
- After driving the pins, place your hands next to them on each side of the electrode to help discharge the static from the board.
- You can also try passing a damp cloth over the board's surface to pick up any static charges before driving the pins.
Depending on the conditions, any one of them can work, either alone or in combination with another.
Q: Why do meter readings not always agree?
Two meters of the same manufacturer should typically read within 0.5-1.0% of each other, assuming settings and electrodes are the same, and the meters are electrically correct. When comparing meter readings of different manufacturers, readings may show greater variances for a number of reasons including different source calibrations, corrections settings available in the meters, and overall build quality.
When meters are used for lumber inspections by vendors and buyers, the two parties should have a basis for comparing readings obtained with the instruments they are using. Pay particular attention to pins penetration and available settings for species, temperature, electrodes.
Designed and assembled in the USA, Delmhorst meters are calibrated on the USDA standard, and offer corrections for species, temperature and electrodes.
Q: Where do I test when doing an inspection?
A comprehensive inspection includes testing all major building components including the foundation, walls, ceilings, floors. Plumbing leaks that are not immediately visible are a major source of moisture issues and it is important to use both pin meters with special application electrodes, and pinless technologies to locate hidden moisture.
Q: Can I usea moisture meter to check for pest infestation?
Yes - a few meter readings in key locations of the structure will quickly indicate if the areas are safe or in danger of infestation. We recommend using pin meters for pest control applications as the best way to identify the exact point of infestation behind walls and ceilings. The key to finding hidden moisture is to use an electrode with insulated contact pins. These pins read only at their un-insulated pin tips, allowing the contractor to drive the pins into material at different depths, noting readings at each level of penetration.
A pinless meter is a good way to quickly survey infested areas and identify the need for more exhaustive testing with probes.
Q: At what level of moisture does ininfestation or decay occur?
Wood technologists and pest control experts agree that most fungi need at least 20% MC. Readings higher than 20% are susceptible to mold growth and decay. Readings in the 17-20% are borderline and normally require further testing. On the other hand, infestation can occur at much lower levels, especially in humid or coastal conditions. Old House Borer and Powderpost Beetles can attack wood that falls in the 12-13% range.
Q: Which meter works best for synthetic stucco (EIFS)?
Pinless meters offer the convenience of testing a large area quickly, and help you determine if further testing is required in certain spots.
Pinless meters read moisture closest to the source of the magnetic field, in this case, at the surface. Most pinless meters read at a depth from 1/2" to 1". Moisture that resides in the substrate or insulation may go undetected without using a deep penetrating electrode. It is also important to remember that any metal or other conductive material behind the EIFS may give false readings.
A pin type meter is the best way to identify the exact location of moisture in the substrate and framing. The meter uses two electrode pins that penetrate into the material at a desired depth. When insulated contact pins are used, only the uncoated tips are exposed to the wood fiber, providing an accurate reading of moisture content at various levels of penetration. Pin type meters are the only instruments that allow the inspector to identify the exact location of moisture at a given point.
Many EIFS inspectors use both types of meters. They can quickly identify problem areas using a pin-less meter, then use a pin meter to identify the exact location of moisture in the wood substrate.
Q: Where does most moisture intrusion occur in eifs clad Houses?
Most moisture intrusion occurs around windows, doors and any flashing. In many cases the moisture intrusion is directly related to poor design and installation practices. The most effective way to check for moisture in the substrate or frame is to use our 21-E electrode with 6" penetration pins. This method allows you to locate moisture behind the EIFS without it having to be torn away.
Q: How does a moisture tester work?
Probe-type meters operate on the principle of electrical resistance, utilizing the relationship between the moisture content of the material and its conductivity. This relation is possible because moisture is an effective conductor of electricity and hay acts as an effective insulator. The “reading” is made between the two metal contacts at the tip of the probe.
Q: What is the ideal moisture range to bale hay?
This depends on the size and type of bale and can vary among different hay-growing regions. A general rule of thumb:
Small squares – 18%-20%
Mid-large squares – 12%-16%
Round bales - 15% or less
If using a preservative, follow the instructions of the preservative manufacturer. Smart use of a moisture tester in combination with preservatives allows hay to be baled at higher than traditionally recommended moisture levels. Do not attempt to bale hay before it is at an acceptable moisture level, even when using a preservative.
Q: What methods are commonly used for testing hay moisture?
In The Windrow
- Collect hay from the windrow and place it in a five- or ten-gallon container. Apply a multi-pin prod to the hay and press down on the handle. Take a reading. Mix the hay and repeat this procedure no less than three times.
- Then from the same area of the windrow, select up to five large, slower-drying stems and place one at a time across two adjacent points on the multi-pin prod and take readings. The average of these stem readings should be about two to five points higher than actual moisture content.
Repeat these steps in different parts of the field and pay special attention to the areas where the hay is heaviest. Your decision to start baling should consider the amount of variation found among windrow readings as well as the average stem moisture.
On-the Go Monitoring - In the Bale Chamber
- The hay producer can install a moisture meter in the tractor cab, power it off the tractor battery, and connect it to a sensor in the bale chamber to monitor moisture while baling, without leaving the cab.
- The meter collects and processes eight readings that are accumulated every four seconds, then displays the average and highest reading. This cycle is repeated every four seconds.
A continuous monitor is an easy and reliable way to give the operator clear guidelines and a little less to worry about. Even though this method provides reliable information, we recommend that you take probe readings by hand in several bales, especially at the beginning of baling, and as you see conditions change. The model FX-2000 can be used for on-the-go moisture monitoring or as a portable meter.
In The Bale
- Since the interior of most bales is seldom uniform with regard to density and leaf/stem ratio, and it is impossible to obtain a truly "representative" field sample, it is important to take a number of readings from various parts of a bale and average them. Pay close attention to the range of readings and the high readings. Drive the prod across the bale slices to obtain firmer, more uniform contact.
Random spoilage of baled hay can occur due to fluctuating field conditions, i.e. windrow size, soil moisture, stand density, low spots, and shade. It is imperative to check bales at several locations in the field.
Q: What affects meter readings?
Besides moisture content, factors which affect meter readings most are: moisture distribution, crop variety, temperature of the hay, crop maturity, sample density, cutting, and the overall climatic conditions present. Cloud cover and high relative humidity result in more variable moisture readings than a sunny, dry day with light breezes. Please refer to the owner’s manual of your meter for more info.
Q: How accurate are meter readings?
Because field conditions can change rapidly, accuracy guidelines must be considered in terms of "ranges", not specific points. Claims of accuracy should be taken with caution, because it is unlikely that such claims can be consistent. Expert evaluations of the same meter may yield different results, mainly dependent on the technician’s sampling procedure, conditioning and uniformity of the samples, difference in crop, and differences in oven test procedure. For optimum results, carefully read the owner’s manual provided with each meter.
Q: Is there a way to make sure my meter is in calibration?
The primary or electrical calibration of the tester can be checked by the built-in calibration checkpoint feature or by using an external moisture content standard.
Q: How can I purchase a Delmhorst meter or accessories?
Our products can be purchased directly from us or through one of our authorized resellers. Contact us at Sales@delmhorst.com or 877-DELMHORST (335-6467) for more information.
Q: What are Delmhorst payment terms?
Credit card on US bank or wire transfer. Domestic resellers may apply for Net 30 DD open account after initial order.
Q: What is the warranty on Delmhorst products?
Meters are covered by a limited warranty ranging from one to three years, depending on the model. Electrodes, prods and spare parts are covered by a 90-day warranty.
Q: What is the Delmhorst return policy?
Our aim is for you to be 100% satisfied with your Delmhorst meter. If you are not completely satisfied, products in brand new condition may be returned for exchange or refund (minus shipping and handling) within 30 days of purchase. All packaging materials and accessories must be in new condition. Used or damaged equipment will be subject to a restocking fee, to be determined after inspection.
If returning a product, please include a receipt or other proof of purchase, and a detailed explanation regarding the reason for return. Customers in the US should follow instructions per the Return Form under the Support section of our website. International customers should contact us at info@delmhorst.com for instructions. Your refund or exchange will be processed once your returned product is received, inspected and approved for refund or exchange.
Credits may take up to 14 days to process.
Q: What if I have a defective product out of the box?
In the rare occurrence you have received a defective meter from Delmhorst right out of the box, please contact us immediately for an exchange. If the meter was purchased from a reseller, contact the reseller for assistance.
Q: Where can I have my Delmhorst meter repaired and/or recalibrated?
Customers in the US should follow instructions per the Return Form under the Support section of our website. International customers should contact us at sales@delmhorst.com for instructions.
Q: How can I find out the status of my order or repair?
Contact Delmhorst at sales@delmhorst.com or 877-335-6467.

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