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Palmer Wahl

Innovative temperature technology then and now...

What began as a small instrument shop in 1836, developed into an enterprise of international reputation during the 1940’s and 1950’s, and continues to evolve into the 21st century.

Virtually every industry relies on temperature measurement in the production of quality products. Palmer Wahl customers know they can rely on the accuracy of Palmer Wahl temperature instruments for their processess.

From bimetal, mercury, liquid, and temperature labels; to thermo- couples, RTD’s, infrared, digital meters, and thermal imaging - since the beginning Palmer Wahl have proven their commitment to constant progress in the development and manufacture of the highest quality temperature instrumentation.

Digital Process Thermometers

Digi-Stem RTD Systems Digi-Stem® RTD and Thermocouple Systems RTD & Thermocouple Sensor Assemblies Transmitters

Digi-Stem RTD Systems

DST600 Series Industrial RTD Meters and Probes, designed for temperature critical applications.

Digi-Stem RTD Thermometer Systems for Food Processing - with Self-Checking Technology
Digi-Stem RTD Thermometer Systems with Local Display, Isolated Second RTD Sensor, and Internal Terminal Block
Digi-Stem Thermometer Systems with Local Display, Isolated Second RTD Sensor, and 4-20mA Transmitter

Digi-Stem® RTD and Thermocouple Systems

Optional FM, Max-Min, Transmitter, and multiple Thermocouple Systems

Selectable Stems, Rigid, All Angle and Remote
Large 1" LCD Continuous Display
Easy to Read from Over 20 Ft.Battery Operated
System Accuracies from ± 0.3°F (± 0.2°C)
Factory Calibration Traceable to NIST (Optional)
Direct Replacement for Bimetal, Mercury-in-Glass, Bulb & Capillary Thermometers
Temperature Ranges from -328° to 1472°F (-200° to 800°C)
Easy to Install
NEMA-4X Stainless Housing
Hose-Down Proof, Vibration Tolerant
Optional RTD Output
Programmable 4-20 mA Transmitter with Local Display, Loop Power

Models:

Digi-Stem RTD Thermometers with optional FM or Min-Max
Digi-Stem RTD Thermometer & Transmitter System
Digi-Stem Thermometer Systems with Five Thermocouple Inputs

RTD & Thermocouple Sensor Assemblies

Wahl Thermocouples and RTD's are precise temperature measuring sensors engineered to provide the highest quality and reliability. You can configure these RTD and Thermocouple systems and components to fit most industrial applications.

Fast Response
High Accuracy
Internal Spring Loading
Replaceable End Tips
High Temperature Operation

Wahl Customized Design Service designs for your application, and to minimize unplanned downtime.

Transmitters

Wahl offers In-Head transmitters including universal, programmable, and fully HART compatible models

The MP82710 microprocessor based model is one of the smallest most advanced 2 wire transmitters in the industry. It is available with or without Hart Protocol and ATEX approved Intrinsically Safe. The MP872710 transmitters can also be provided with the MP 82 Display unit that is simply clicked onto the top of the transmitter. Housings in aluminium and stainless steel with glass top windows can be provided.

Thermocouple and RTD's can be supplied with sensors manufactured for any application by Palmer Wahl and may be provided with all the necessary European and American connection heads, spring loaded mounting plates and process connection parts.

Numerous alternatives are available including Rail, Rack and Wall mounted Transmitters, certain Rack models are also available with built in indicators. Miniature and Economical Head Mounted Transmitters are available along with private labeling.

Temp-Plate^® Temperature Sensitive Labels

The World’s Smallest Temperature Recorder NIST Traceable with a wide variety of applications

Temp-Plates® are self adhesive temperature recording labels that can be read at a glance. Rated temperatures are printed at the sensor window. Each Temp-Plate contains one to several sealed heat-sensitive elements which change chemical structure when exposed to heat exceeding their calibrated temperatures. Where exacting temperature is critical, a Temp-Plate’s miniaturized size permits installation on parts and in areas where other recording instruments prove impractical.

Irreversible Color Change from pearl gray to black at 1% of indicated value of rated temperatures.

Pressure sensitive adhesive backing rated to 500°F on smooth, clean, dry surfaces. Wahl Temp-Plates are the only NIST traceable labels on the market.

STANDARD Four-Position - 240 MINI Four-Position - 101-4 MINI Four-Position ROUND - 444 MICRO Four-Position - 441 MICRO Four-Position, Round - 442 Unmarked MICRO Four-Position, Round - 440 MINI Eight-Position- 101-8 MINI Six-Position - 101-6 MICRO Three-Position - 430 MINI Single-Position Round - 414 MINI Single-Position Square - 210 MINI Four-Position Round - 443 MINI Four-Position - 101-4 MICRO Four-Position - 450 Wahl Breaker - WB130

STANDARD Four-Position - 240

Number of Positions: 4

Size: .75" x 1.75"

Base Part Number: 240

Description: Available in Mylar or Kapton

MINI Four-Position - 101-4

MINI Four-Position ROUND - 444

MICRO Four-Position - 441

MICRO Four-Position, Round - 442

Unmarked MICRO Four-Position, Round - 440

MINI Eight-Position- 101-8

MINI Six-Position - 101-6

MICRO Three-Position - 430

MINI Single-Position Round - 414

MINI Single-Position Square - 210

MINI Four-Position Round - 443

MINI Four-Position - 101-4

MICRO Four-Position - 450

Wahl Breaker - WB130

Pressure & Temperature Circular Chart Recorders

Designed for long service life in indoor or outdoor installations, even in harsh conditions.

Designed for indoor or outdoor use, our recorders provide long service life, even in harsh conditions. Palmer Recorders are available in 8" or 12" models, and come complete with either electric, spring wound, or PC-11 (battery operated) chart drive, and up to three (3) felt tip pens.

The combinations of case mounts and internals allow selections which meet your specific requirements without limiting performance or demanding a custom price.

Aluminum Case Mounting Options:

Wall, Flush, Pipestand, Portable and Pedestal

Pelican Case Mounting Options:

Wall, Pipestand and Portable
Available Colours are Black, Silver, Orange, Yellow, OD Green and Desert Tan

Pressure Recorders

Chart Size: 8" & 12"
Pens: 1, 2, or 3
Range: 0 to 30,000 PSI
Accuracy: ± 1/2 chart graduation

Temperature Recorders

Chart Size: 8" & 12"
Pens: 1, 2, or 3, Pelican Case: 1, or 2 only
Range: -40° to 1000°F
Accuracy: ± 1 chart graduation

Pressure & Temperature Recorders

Chart Size: 8" & 12"
Pens: 1, 2, or 3
Range: 0 to 30,000 PSI / -40° to 1000°F
Accuracy: Pressure: ± 1/2 chart graduation;
Temperature: ±1 chart graduation

Heat-Spy® Infrared Thermometers

Portable non-contact infrared thermometers

DHS85XL Infrared Thermometer DHS115XL Infrared Thermometer DHS115XEL Infrared Thermometer DHS125XEL Hybrid Infrared Thermometer DHS135XEL Infrared Thermometer DHS235XEL Infrared Thermometer DHS520 Series Heat Spy High Temperature Infrared DHS40 Series Heat Spy High Performance Handheld Infrared Pyrometers

DHS85XL Infrared Thermometer

The Wahl DHS85XL is the most economical Heat Spy in its class. This small handheld unit is best for close range uses with an 8:1 distance to spot ratio. Temperature range is -4° to 619°F (-20° to 326°C). Spectral range is 5 to 14μm. Powered by a 9V alkaline battery.

DHS115XL Infrared Thermometer

DHS115XEL Infrared Thermometer

DHS125XEL Hybrid Infrared Thermometer

Temperature range is -25° to +1400°F (-32° to +760°C). Distance to spot ratio is 12:1, and spectral range is 5 to 14 μm.

The Wahl Heat Spy DHS125XEL is a hybrid contact and non-contact thermometer. Using a K Type thermocouple as a reference, this unit has built in software that determines the emissivity of a target object and automatically adjusts the emissivity of the instrument to the proper setting. This handheld unit is lightweight and easy to hold; thermocouple plugs in to side of unit. Distance to spot ration is 12:1; measure temperatures up to 1400°F (760°C) from a comfortable distance.

This model includes advanced features, including:

Display thermocouple measurements on screen
Max / Min / Average / ΔT calculations
Hi & Low alarms - screen changes color
Ten points of memory

The DHS125XEL comes with user manual 9V battery, and canvas holster style case with belt loop.

DHS135XEL Infrared Thermometer

The Wahl Heat Spy DHS135XEL is a long distance handheld infrared thermometer with 30:1 distance to spot ratio. This model has extended features and measures temperatures up to 1832°F (1000°C). Spectral range is 8 to 14μm.

Choose between °F and °C display. LCD screen is backlit for easy reading. Lock button allows the user to continuously measure and display the temperature without pulling the trigger.

The DHS135XEL features include:

Max / Min / Average / ΔT calculations
Hi & Low audible alarm
Ten points of memory
Adjustable emissivity
Integrated tripod mount

The DHS135XEL comes with user manual, 9V battery, vinyl carrying case and wrist strap.

DHS235XEL Infrared Thermometer

The highest temperature range option in the handheld thermometer range. The extended temperature range of this unit is -58° to 2732°F (-50° to 1500°C). The 50:1 distance to spot ratio makes this model suitable for extra long range use. Backlit liquid crystal display is easy to read. Convenient handheld size means buttons are easily reachable. Laser sighting helps with effective aiming.

The DHS235XEL features

10 point memory log that can save current temperature
MAX/MIN/AVG/ΔT
Electronic Trigger Lock allows the user to continuously measure and display the temperature without pulling the trigger
Ultra low power consumption in shut-down mode
Audible hi and low alarms

DHS520 Series Heat Spy High Temperature Infrared

With Bluetooth and Data Logging

The Wahl DHS520 Series Heat Spy models are high precision portable infrared thermometers, designed for accurate high temperature measurement in the range of 1122° to 5432°F (600° to 3000°C). The measured temperature is displayed in four simultaneous modes: continuous, average, max, and min, with user selected mode for the viewfinder display. Temperature measurement resolution to 1°

Accurate sighting is ensured by the clear, wide angle (9°) field of view and small, clearly defined (1/3°) measurement area. Focusing is variable from 1m to infinity, with close focus options available using auxiliary lenses. Optional data logger software allows you to connect to a mobile device and view, analyze and record live temperature readings. The DHS520 includes a built in Route Mode, allowing the user to execute up to 4 preconfigured routes to ensure accurate readings and long
term data trending. Internal Data Logging up to 9999 readings with onboard storage for single handed operation, without the need for a separate device.

Features include Bluetooth® or USB connection to PC, Laptop, or Mobile device with optional data logger software on Mobile Phone or PC/Laptop, precise view of target spot with simultaneous digital display of temperature in the viewfinder, choice of operating and calculating modes, digital output and out of range alarms.

DHS40 Series Heat Spy High Performance Handheld Infrared Pyrometers

This industrial infrared temperature sensor series features an accuracy of up to 0.25% of of reading and 1°C / 1°F resolution. Available in 10 different spectral ranges and temperature ranges, the DHS40 Handheld Infrared Pyrometer has the most options of any manufacturer.

The DHS40 series is available for use in Molten Metal (1M), Non-Ferrous Metals (2M), and Low Temperature Processes (LT) models. This is the only hand held portable infrared on the market for use with models for Cold Metal (3M), Combustion Through Flame (MT), Burning Gas (F4), Glass > 1 mm thick (G5), Glass < 1 mm thick (G7), Polyethylene Film (P3), and Polyester Films (P7).

The case is made of cast and extruded aluminum for lightweight and rugged durability, as well as additional shielding against EMF interference originating from machinery and engines.

Both photodiode and thermopile sensors are used, depending on the spectral range and applications of each model.

R10 Compact Fixed Infrared Sensor

The Wahl Heat Spy Monitor R10 Series Compact Fixed Infrared Sensor is the entry level model in our "R" series of fixed infrared sensors. The 304 Stainless Steel housing is IP65 (NEMA 4) rated, and allows the unit to function in ambient temperatures up to 122°F with no additional cooling required. All models are powered by 24VDC to easily interface with standard PLCs, temperature controllers, or panel meters.

This model has a temperature range of 0 to 500°C (32 to 932°F) and features 4 – 20 mA output. The 20:1 distance to spot ratio is perfect for measuring smaller target areas, or in applications where the distance between the sensor and the measurement area is larger. The rated accuracy is ± 1% of reading, and the fixed emissivity at 0.95 is suitable for measuring a wide variety of materials.

Designed for quick and easy installation, with 5 ft (1.5 meters) of cable or 10 ft (3 meters) of cable available to meet the requirements of your system. Sensor includes two stainless steel locking nuts for mounting in an 18mm or ¾ inch diameter hole.

Bimetal Thermometers

Palmer design, quality, & craftsmanship make Palmer Bimetal Thermometers an industry standard for rugged reliability & accuracy

All Star - Back Connected All Star - Universal Mount - All Angle All Star - All Angle All Star - Back Connected Adjustable Union All Star - All Angle Adjustable Union Slip-Fit - External Reset Gear - Back Connected Slip-Fit - External Reset Gear - All Angle Sanitary Bimetal - Back Connected Sanitary Bimetal - All Angle

All Star - Back Connected

Model: 3BC - 3" Case, 5BC - 5" Case

Case/Form: 304SS/316SS Back Connected

Accuracy: 1% of Full Range

Range: -100° to 1000°F or -50° to 500°C and Dual Range Scales

Recalibration: External Reset Nut

Stem Length: Standard lengths to 24", optional up to 60"

All Star - Universal Mount - All Angle

All Star - All Angle

All Star - Back Connected Adjustable Union

All Star - All Angle Adjustable Union

Slip-Fit - External Reset Gear - Back Connected

Slip-Fit - External Reset Gear - All Angle

Sanitary Bimetal - Back Connected

Sanitary Bimetal - All Angle

Rigid & Remote Filled System Dial Thermometers

Palmer's Direct-Drive Double Wound Temperature coil offers accuracy and toughness in many applications.

Rigid Dial Thermometers with 1-1/4"-18 Swivel Nut Fitting & Tapered Bulb Storage Tank Thermometers Rigid Dial Adjustable Union with 1/2" NPT SS Adjustable Union & 3/8” Diameter Stem Remote Reading Dial Thermometers Wall Mount Remote Reading Dial Thermometers Flush Mount Remote Reading Dial Thermometers Wall or Flush Mount Rigid Dial Thermometers with 1/2" NPT & 1/4" Diameter Stem

Rigid Dial Thermometers with 1-1/4"-18 Swivel Nut Fitting & Tapered Bulb

Model: 35A, 35AL - 3.5" Case, 50A, 50AL - 5" Case

Ranges: -100° to 1200°F or -60° to 500°C

Connection: 1-1/4" UNEF - 18 Swivel Nut, Optional 7/8"-22 Swivel Nut

Accuracy: ± 1 Scale Division

Calibration: External Reset Calibration Screw on back of case

Fill: Liquid or Mercury Actuated; Mercury over 500°F

Stem Length: 3.5" to 72"

Option: RTD or Thermocouple electronic sensors. 2, 3, 4

Storage Tank Thermometers

Model: 35H - 3.5" Case, 50H - 5” Case

Ranges: -100° to 1200°F or -60° to 500°C

Connection: 1-1/4" UNEF-18 Swivel Nut. Optional 3/4" or 1" NPT Brass Union

Accuracy: ± 1 Scale Division

Calibration: External Reset Calibration Screw on back of case

Fill: Mercury Actuated (Capillary lengths up to 250 ft); Liquid Actuated

(limited to Capillary lengths up to 15 ft and Temperature range of 500°F)

Capillary: 5 ft. of 3/16" diameter bendable stainless steel armor and bulb.

Lengths longer than 5 ft. are optional

Rigid Dial Adjustable Union with 1/2" NPT SS Adjustable Union & 3/8” Diameter Stem

Remote Reading Dial Thermometers Wall Mount

Remote Reading Dial Thermometers Flush Mount

Remote Reading Dial Thermometers Wall or Flush Mount

Rigid Dial Thermometers with 1/2" NPT & 1/4" Diameter Stem

Pressure Gauges

The rugged construction and design of Palmer Fearless Gauges is enhanced by Palmer’s vibration and pulsation resistant Dampened Movement. The results are a Pressure Gauge suitable for demanding applications in all industries.

Fearless All Stainless Steel Gauges Gas Test Gauges All Stainless Steel Gauges Low Pressure Gauges Brass Case Gauge Stainless Steel Case Gauges Painted Steel Case Gauges Contractor Gauges Solar Gauges

Fearless All Stainless Steel Gauges

Model: 40SF