Compact wet/wet differential pressure transducer for Class I, Division 1 Explosion-Proof applications from 14″ water column DP (0.5 PSID) featuring 4-20mA or voltage outputs.
**Disclaimer: Unless otherwise agreed in writing, Core Sensors products are not authorized for use in applications including medical devices, life support systems, in-flight aerospace, nuclear or any other application where the product failure could result in personal injury or death.
Wet / Wet – From 0.5 to 1,000 PSID
The CS64 Explosion-Proof Differential Pressure Transducer is a rugged, high-strength sensor engineered for precise measurement of differential pressure in liquids and gases within Class I, Division 1 explosion-proof environments. Designed for hazardous locations, the CS64 features an all-welded, factory-sealed stainless steel housing that meets a minimum IP66 ingress protection rating, ensuring reliable performance even in harsh and wet conditions.
Its 316L stainless steel, oil-filled sensor element delivers exceptional long-term stability across a wide temperature range, while maintaining superior corrosion resistance to a variety of process media. Installation is straightforward with a standard 1/2” male NPT conduit fitting and two meters of 20AWG flying leads, allowing seamless integration with rigid metal conduit systems.
Differential pressure ranges from 0.5 PSI (14″ water column) up to 1,000 PSI are available, with 1/4″ female NPT process connections supporting versatile applications in industrial and hazardous location settings.
Measure differential pressure across filters for real-time monitoring
Learn more →Measure differential pressure across an orifice for flow measurement of liquids and gases
Solutions for various natural gas types including sweet, sour, and natural gas with hydrogen content.
Low-power, low current pressure transducers for remote monitoring IoT applications in industrial and hazardous locations.
Learn more →Measuring pressure, temperature, differential pressure and level in chemical feed systems, water processing, dosing and injection, fuel conditioning, and more.
Learn more →Operates from a 3–5VDC unregulated supply consuming ≤3mA. Ideal for IoT, remote monitoring, and battery-powered systems. Use Output Signal option “8” when creating a model number.
*Accuracy includes non-linearity, hysteresis and non-repeatability
**Max line pressure is the highest common mode pressure that can be applied to the sensor without damage.
***Overpressure and burst pressure are the maximum differential pressure that can be applied to the high or low side before damage to the sensor will occur.
Specifications are subject to change without notice.
Use the configuration tool below to build your CS64 model number. Don't see the options you need? Contact us — we excel in custom configurations.
Use the filters below to explore our most popular pre-configured models. Click any configuration to view detailed specifications, download documents, and 3D STEP files. These represent our standard offerings—we also specialize in custom configurations tailored to your exact requirements. Don't see what you need? Contact us to discuss a solution designed specifically for your application.
The following accessories are recommended for use with the CS64 Explosion-Proof Differential Pressure Transducer.
Cooling Adapter / Finned Siphon
Part No. 00449-00
For applications with extreme media temperatures that exceed the rating of the pressure transducer, Core Sensors offers an all 316L SS pressure sensor cooling adapter.
View Accessory →
1/4″ SAE Female Schrader to NPT Adapter
Part No. 01534-00
The 1/4” SAE Female Schrader to NPT Adapter is a versatile adapter enabling the installation of a pressure transducer onto a process line with a male 1/4″ SAE 45° Flare Schrader valve connection without the need for a depressor pin to be previously installed in the process port of the transducer.
View Accessory →Core Sensors offers flexible payment options for both new and established customers.
An explosion-proof differential pressure transducer measures the difference in pressure between two points and is built for hazardous environments where flammable gases or vapors may be present. The CS64 model features a robust, welded stainless steel enclosure and carries CSA Class I, Division 1 approval for explosion-proof operation.
The CS64 also features Class II certification for dust environments.
A differential pressure transducer has two hermetically sealed chambers, each connected to a process and separated by a flexible membrane known as a diaphragm. With a MEMS sensing element in a fluid-filled cavity, the sensor measures the differential pressure between the two diaphragms. As the pressure differential changes between P1 and P2, the linear output signal increases until the full scale pressure is met.
In a bi-directional differential pressure transducer, the output signal midpoint is set to 0 PSID and the measurement range is equal on either side. For example, a ±5 PSID range with 4-20mA output would set -5 PSID to 4mA, 0 PSID to 12mA, and +5 PSID to 20mA. Bi-directional pressure measurement can be used in filtration and flow applications.
Differential pressure transducers are commonly used in: filter monitoring to detect clogging or blockages, level measurement in closed containers, flow rate measurement by calculating the pressure drop across a primary element, and safety-critical systems to monitor pressure differences that could indicate potential hazards.
The CS64 offers configurable differential pressure ranges from 0.5 PSI up to 1,000 PSI, with line pressures up to 1,000 PSI. Bi-directional ranges are also available, including 0 to 14" water column, ±1 PSID, ±2 PSID, ±5 PSID, 0 to 10/100/300/500/1000 PSID.
Since we calibrate our pressure transducers at our New Jersey factory, we can match the CS64 to the exact measurement range you need. Contact our team to review your application.
The CS64 explosion-proof DP uses a hermetically sealed, CSA certified electrical connection to protect the pressure transducer from any potential hazardous conditions. Our electrical connection seal design prevents any hazardous liquids or gases from reaching the electronics of the pressure transducer.
Core Sensors offers operating instructions for the mechanical and electrical installation of the CS64. The transducer features four M4 mounting holes at the bottom of the transducer, although many applications are able to install the transducer directly into the pipe fittings. Follow the electrical connection guideline for wiring information.
Have questions? Need a quote? We are ready to help! Fill out the form and a member of our sales team will contact you to discuss your requirements. You can also give us a call at (862) 245-2673.
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1/4″ SAE Female Schrader to NPT Adapter All stainless steel adapter in stock and ready to ship 
1/4" NPT Cooling Adapter All 316L stainless steel adapters in stock and designed for applications with extreme temperatures 
Mating Connectors Get your pressure transducer connected with in-stock mating connectors 
Vent Tube Breather Plug Vent tube protection from moisture and humidity 
Mating Cable Assemblies Mating cordsets and cable assemblies in stock and ready to ship for plug and play operation 
