Palmer Wahl chart recorders and pressure transmitters support paper recording and electronic process monitoring. Explore pressure and temperature recorders, the Model 524 differential pressure recorder, and Wahl DP, SS and CS transmitter ranges.
SL Measurement supplies Palmer Wahl instruments for pressure, differential pressure and temperature monitoring. Choose a circular chart recorder for a paper record at the instrument, or a pressure transmitter for connection to a compatible indicator, controller or data acquisition system.
The range includes 8-inch and 12-inch chart recorders, the Model 524 differential pressure recorder, Wahl DP differential pressure transmitters, and SS/CS pressure transmitters.
Pressure & Temperature Chart Recorders
Palmer Wahl circular chart recorders show how pressure or temperature changes over a selected recording period. Completed charts can be retained with operating, inspection or maintenance records.
Options include 8-inch and 12-inch charts, portable and fixed-mount configurations, and pressure, temperature or combined recording. Case construction, pen count and chart drive depend on the selected model.
The Palmer Wahl 524 records the pressure difference between two connected points on a 12-inch circular chart. Optional channels allow static pressure and temperature to be recorded alongside differential pressure.
Applications include filter pressure-drop monitoring and appropriately configured flow or liquid-level measurement systems. For selection, specify both the differential-pressure span and the maximum line pressure.
The Wahl DP Series measures the pressure difference between two points in a compatible liquid or gas system. It provides an electrical signal for applications such as filter monitoring and industrial process measurement.
Select the measurement range, accuracy option, process connections and output together. Available signal configurations include 4–20 mA and voltage outputs.
The Wahl SS and CS Series convert process pressure into an electrical signal for compatible monitoring and control equipment.
SS Series: Silicon sensing technology with a stainless steel diaphragm.
CS Series: Dry ceramic sensing technology, selected according to the medium and chemical compatibility.
Specify the required pressure range, output, power supply and electrical connector. Wetted materials and seals must suit the measured medium and operating temperature.
For recorder consumables, provide the instrument model, existing chart number, printed scales and chart rotation period. Include the pen colour and part number where available.
For a temperature-recording configuration, include the required range, bulb dimensions, insertion length, process connection and capillary routing distance. These details help match the sensing arrangement to the installation.
Enquire About Palmer Wahl Instruments
Send your measurement range, process medium, operating conditions and required recording or output function. For a replacement, include a clear nameplate photograph and the complete model code.
The Palmer Wahl 524 differential pressure chart recorder produces a paper record for reviewing filter pressure drop and suitable flow or liquid-level measurement systems. Optional pens allow static pressure and temperature to be recorded alongside differential pressure.
Chart size: 12-inch circular chart with pipestand mounting.
DP ranges: Select from 0–20, 0–50, 0–100, 0–200, 0–300 or 0–400 inches of water.
Recording channels: One differential-pressure pen, with optional static-pressure and temperature pens.
Chart drive: PC-11 battery-operated multi-speed drive as standard.
Construction: Mechanical dual-bellows measurement system in a powder-coated aluminium case.
Palmer Wahl pressure and temperature chart recorders provide a paper record of measurements over time. Choose an 8-inch or 12-inch recorder with an aluminium or Pelican® case, configured for pressure, temperature or combined recording.
Recording options: Up to three pens, depending on configuration.
Chart drives: Battery-operated, with spring-wound and electric options available.
Installation: Portable and fixed-mount configurations.
The Wahl DP Series differential pressure transmitter measures the pressure difference between two points in a compatible gas or liquid system. Its dual pressure ports support filter pressure-drop monitoring and industrial process measurement.
Construction: Silicon sensing technology with 304 stainless steel housing and sensor construction.
Range options: Catalogue selections from 5 to 500 psi; custom ranges by enquiry.
Output options: 2-wire 4–20 mA or 3-wire voltage output.
Accuracy: Ultra-high, Standard and Economy options to suit the measurement requirement.
Connections: Selectable process threads and electrical connectors for installation or replacement work.
The Wahl SS and CS Series pressure transmitters convert process pressure into an electrical signal for compatible PLCs, controllers, indicators and data acquisition systems. Choose a silicon or ceramic sensor to suit the pressure range and measured medium.
SS Series: Silicon pressure sensor with a stainless steel diaphragm.
CS Series: Dry ceramic pressure sensor for applications requiring suitable chemical and corrosion resistance.
Signal options: 4–20 mA or voltage output, selected when ordering.
Accuracy options: 0.05%, 0.08% or 0.10% of full scale, subject to the specified operating conditions.
Installation: Compact 304 stainless steel housing with selectable process and electrical connections.
This website uses cookies to ensure you get the best experience on our website
