Knowledge Center

Mercury Restrictions

Restrictions of Mercury Added Products A number of US states and foreign countries prohibit the use of mercury in their territories.  These include: California Connecticut Illinois Louisiana Maine Massachusetts Michigan Minnesota New Hampshire New York Ohio Rhode Island Vermont Washington Wisconsin Canada This list is subject to change without notice.  Make sure you know the […]

Sanitary Flanges

Sanitary Flanges are installed for use on a piece of pipe, using a Tri-Clamp hygenic fitting connection to make cleaning quick and easy. The most important part of choosing a Sanitary Flange and Tri-Clamp fitting for your installation is selecting the correct size Sanitary Flange for your application. Remember, the size of the flange is […]

Certificates of Conformance

Palmer Wahl offers a standard Certificate of Conformance on the bottom of each packing list, included with your order when it ships.  The standard Certificate of Conformance looks like this: Sometimes more information is required.  If so, we also offer a Long Form Certificate of Conformance, available for an additional charge.  The Long Form Certificate […]

Visit us at Heat Treat 2023 in Detroit

Palmer Wahl will be displaying our latest handheld and fixed infrared products in booth #1839 at Detroit's Huntington Place on October 17 - 19, 2023. Learn more about the show

Types of Thermocouples

Thermocouples measure temperature by measuring a voltage generated by the difference between two dissimilar electrical conductors that form an electrical junction.  The voltage is generated as a result of the Seebeck effect, and is measurable to be interpreted into a temperature. Thermocouples are: Interchangeable, utilizing standard connectors Measure a wide range of temperatures Self-powered: no […]

Chart Recorder Mounting Styles

Palmer Circular Chart Recorders are available in five different case mounting styles.  Select the one most appropriate for your application. Reference the above dimensions for each mounting style sketch. Wall Mount Wall mount recorders come with hangers attached, allowing you to mount your recorder with 1/4 inch diameter screws, with the back of the box […]

Custom Designed Solutions

As the manufacturer, Palmer Wahl is able to provide our extensive experience to our customers.  Our personnel have years of experience in a variety of industries, with familiarity of an assortment of applications. Many of our existing products can be modified to meet special requirements, or we can work with you to create a product […]

Handheld Heat Prober Probe Connectors

Palmer Wahl offers an assortment of handheld probes to fit Thermocouple and RTD handheld meters.  Our Heat Prober Hand Held RTD probes have different connectors to fit our Heat Prober meters. Thermocouple Probes have the ANSI Mini-Connector for the appropriate thermocouple type of the probe. RTD probes are available with four different connectors: 4 Pin […]

How to Replace Expendable Tips on TC850 Series Meters

To connect tip upon receipt of tc850: Remove screws and carrier top to expose the meter, and remove. Insert the tip into the lance, and lock into place with 2 screws. Attach Chromel lead (with yellow jacket) to the + (positive) terminal of the connector Attach Alumel lead (with red jacket) to the - (negative) […]

How to setup a Zero point Temperature Bath

The following information is an excerpt from "Reproducibility of the temperature of the ice point in routine measurements" published by the Commerce Department, National Institute of Standards and Technology (NIST), 1995.  The complete document is available on their website. A properly prepared ice bath is one that consists of a cylindrical Dewar flask (a typical […]

Calibrating a Palmer Bimetal Thermometer

Palmer Wahl Instruments, Inc. has been a trusted supplier of industrial and process instrumentation for over 180 years.  Our knowledge and experience enables us to service companies large and small worldwide.  Let us maintain your instruments with regular calibrations.  Our factory trained service personnel can calibrate and maintain your critical instrumentation, delivering the quality performance […]

Waste Management Solutions

Northeast Waste Management Officials Association - Interstate Mercury Education & Reduction Clearinghouse (IMERC)

Mercury Products, Batteries and Electronic Disposal

  Mercury Products, Batteries and Electronic Disposal Mercury Recycling (Redirects to heritage-enviro.com) Consumer Guide to Battery Recycling (Redirects to energy.gov) Electronics Donation and Recycling Guidance (Redirects to epa.gov)

Aluminum Case Chart Recorder Mounting Styles

Palmer Aluminum Case Circular Chart Recorders are available in five different case mounting styles.  Select the one most appropriate for your application. Reference the above dimensions for each mounting style sketch. Wall Mount Wall mount recorders come with hangers attached, allowing you to mount your recorder with 1/4 inch diameter screws, with the back of […]

CP Numbers, D Numbers, and PW Numbers

Are you trying to locate a part you already have? If your part number begins with D, DP, or PW it is likely a special product that was custom designed for you.  If you need help identifying one of these parts, please contact us.

Digi-Stem® Quick Disconnect

Many of our Digi-Stem thermometers are available with Remote Probes to allow for installation in a variety of applications.  We offer two different types of Straight Quick Disconnect connectors:  standard (metal) quick disconnect hardware and thermoplastic polyurethane quick disconnectors.  Both connectors are IEC IP67 Rated. Please note that cables with molded connectors are made to […]

Calibrating a Digi-Stem® DST600

Palmer Wahl offers DSTCAL software for the calibration of our Digi-Stem DST600 units.  Watch below to see a demonstration performed by our product expert, Jim Eldridge, to learn more.

Calibrating a Palmer Pressure Recorder

From time to time your Palmer Pressure Recorder may require calibration.  Watch this video for a hands-on demonstation on how to do it with our Product Supervisor, Kim Banks.

USDA Equipment Acceptance

USDA Equipment Acceptance Certificate For Wahl Instruments Inc., for the DST600, DST500, and DSX500. Complance with NSF/ANSI/3-A-14159-1-2019 (Hygiene Requirements for the Design of Meat and Poultry Processing Equipment. LEARN MORE

DST500 for Freezer Use

Midwest Food Processing Company Reduces Costs, Increases Processing Speed, and Improves Measurement Accuracy with the Wahl Digi-Stem® LEARN MORE

Instructions for Reuniting Separated Mercury Columns

This information is excerpted from NBS Monograph 90 Mercury separations commonly occur as a result of exposure to shock and rough handling during shipment.  This condition can generally be corrected by carefully following the procedure below, which was developed by the National Bureau of Standards, the predecessor of NIST: The National Institute of Standards and […]

How to Setup a Zero Point Ice Bath

The following information is an excerpt from "Reproducibility of the temperature of the ice point in routine measurements" published by the Commerce Department, National Institute of Standards and Technology (NIST), 1995.  The complete document is available on their website. A properly prepared ice bath is one that consists of a cylindrical Dewar flask (a typical […]

Liquid Actuated Remote Reading Dial Thermometer Bulbs

We offer both Mercury and Liquid actuated temperature systems in our Rigid & Remote Dial Thermometer systems.  Find drawings and descriptions of the liquid actuated temperature bulb styles available below. 81 Series Remote Bulbs for Remote Reading Dial Thermometers - Liquid Actuated 1B Liquid Filled Case Compensated Thermal System. These temperature systems are filled with […]

Mercury Actuated Remote Reading Dial Thermometer Bulbs

We offer both Mercury and Liquid actuated temperature systems in our Rigid & Remote Dial Thermometer systems.  Find drawings and descriptions of the temperature bulb styles available below. 51 Series Remote Bulbs for Remote Reading Dial Thermometers - Mercury Actuated 5B Mercury Filled Case Compensated Thermal Systems For ranges over 500°F mercury is used in […]

Temperature Recorder Bulbs

Temperature bulbs for temperature chart recorders are available in the different configurations shown below. Note: All mercury filled systems conform to ASME 5B.  Non-mercury systems conform to 1A with capillary over 30 feet and 1B with capillary under 30 feet.  Mercury and Non-Toxic filled systems are constructed of 304 stainless steel and have a maximum […]

FDA Final Rule 21 CFR Part 113

Title 21 of the US Code of Federal Regulations concerns the FDA department of Health & Human Services and how they regulate food for human consumption.  Part 113 of the title specifically concerns Thermally Processed Low-Acid Foods packaged in hermetically sealed containers. Visit the Electronic Code of Federal Regulations, Title 21 page for more information. […]

Transmitter for Pet Food Processing

Transmitter for Pet Food Processing U.S. Pet Food Processing Company uses Wahl Transmitters to increase measurement accuracy for safe and healthy dog food! LEARN MORE