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CS51 Series
Non-Incendive Low Pressure Transducer
CS51 series pressure transducer certified for use in Class I, Division 2 Non-Incendive locations. The CS51 is an excellent solution for applications such as natural gas compression, external fuel tank level measurement and process control instrumentation.
CSA Class I, Division 2, Groups A, B, C, D T4 Approved
Pressures from 1 PSI up to 49 PSI
Low power config available (3–5VDC, ≤3mA)
Media isolated sensor
Bi-directional pressures for low-pressure vacuum measurement
Assembled in New Jersey, USA
**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.
OverviewSpecificationsDimensions / 3D Models / MaterialsModel Number ConfiguratorHow To BuyFAQsDownloads
Pressure Measurement In Non-Incendive Locations
with the CS51 Non-Incendive Low Pressure Transducer
The CS51 Non-Incendive Low Pressure Transducer is designed for low pressure measurements in Class 1, Division 2 hazardous locations. The CS51 features an all-welded stainless steel construction, offering a minimum IP65 rating. A wide range of configurable options make the CS51 a versatile pressure transducer designed to operate in some of the harshest conditions. The CS51 is an excellent solution for applications such as natural gas compression, vapor recovery units, dehydration systems, external fuel tank level measurement and process control instrumentation. Configure your CS51 with gauge, absolute, barometric, or bi-directional pressure ranges depending on your system design.
Caution must be taken when installing and operating the CS51 in known Class I, Division 2 hazardous locations. Please review the Non-Incendive Operating Instructions prior to installation.
Available With A Turck Minifast Connection
No Conduit Installation Required!
In an effort to simplify installation in Class I, Division 2 hazardous locations, the CS51 Non-Incendive Low Pressure Transducer is offered with an integral Turck Minifast electrical connection.
When combined with a CSA Division 2 approved Turck cordset and a Turck Lokfast Guard, there is no requirement for conduit to be installed over the cable*. This not only makes installation easy but also makes switching out sensors less cumbersome. Core Sensors can supply all components as a complete package.
* Core Sensors recommends confirming hazardous location installation requirements with your local inspector as each installation is unique.
Buy Minifast Accessories
Buy your mating cables and lockouts from Core Sensors.
Common Applications
Featured
Vapor Recovery
Measure pressure or bi-directional pressure for vapor recovery unit (VRU) monitoring.
Learn more →Compression
Low-pressure, pilot pressure, and level applications in compression equipment.
Learn more →Natural Gas
Solutions for various natural gas types including sweet, sour, and natural gas with hydrogen content.
Propane
Pressure and differential pressure for compressors, HVAC systems, and remote monitoring equipment.
Learn more →Remote Telemetry
Low-power, low current pressure transducers for remote monitoring IoT applications in industrial and hazardous locations.
Learn more →Approvals & Certifications
CSA
- Class I, Division 2, Groups A, B, C, D T4
- ANSI/UL 122701 Single Seal Certified
ABS
- Product Design Assessment (PDA)
CE
- EMC Directive 2014/30/EU
RoHS
- Directive 2011/65/EU
- Amendment 2015/863/EU
Low Power Option
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.
Competitive Lead Times
Standard lead time is typically two to three weeks with expedites available. Contact us with your requirements.
Performance
Accuracy @ 25°C* ≤ ± 0.25% BFSL
≤ ± 0.5% BFSL (≤ 2 PSI)
≤ ± 0.5% BFSL (≤ 2 PSI)
Stability (1 Year) ≤ ± 0.25% FS
Pressure Cycles 100 Million
Overpressure 2X Minimum
Burst Pressure 5X or 245 PSI, whichever is less
*Accuracy includes non-linearity, hysteresis and non-repeatability
Thermal
Operating Temperature -40°C to +80°C
Operating Temperature (Electrical connection “F”, EN175301-803 Form A) -20°C to +80°C
Media Temperature -40 to +125°C
Media Temperature (Electrical connection “F”, EN175301-803 Form A) -40 to +105°C
Compensated Temperature -15°C to +65°C
Storage Temperature -40 to +125°C
TC Zero ≤ ±1% of FS
≤ ± 2% of FS (≤ 2 PSI)
≤ ± 2% of FS (≤ 2 PSI)
TC Span ≤ ±1% of FS
≤ ± 2% of FS (≤ 2 PSI)
≤ ± 2% of FS (≤ 2 PSI)
Environmental
EMI/RFI Protection Yes
IP Rating* IP65 minimum
Vibration 10g, 20-2000Hz
Shock 100g, 11ms, 1/2 sine
*IP Rating is dependent on electrical termination selected. Contact factory for more information.
*IP Rating applies when electrical connector is attached with the appropriate ingress protection.
Electrical
Viewing: 4-20mA Click a tab above to switch output type
Excitation 10-28VDC
Current Consumption 20mA, typical
Output Load 0-800Ω @ 10-28VDC
Frequency Response (min) ~250HZ, min
Zero Offset (of FS) ≤ ±0.5% typical
±1% max
±1% max
Span Tolerance (of FS) ≤ ±0.5% typical
±1% max
±1% max
Viewing: 1-5V, 1-6V Click a tab above to switch output type
Excitation 10-28VDC
Current Consumption <10mA
Output Load 5kΩ, min
Frequency Response (min) ~1kHz, min
Zero Offset (of FS) ≤ ±0.5% typical
±1% max
±1% max
Span Tolerance (of FS) ≤ ±0.5% typical
±1% max
±1% max
Viewing: 0.5-4.5V Ratiometric Click a tab above to switch output type
Excitation 5VDC ±0.5V
Current Consumption <10mA
Output Load 5kΩ, min
Frequency Response (min) ~1kHz, min
Zero Offset (of FS) ≤ ±0.5% typical
±1% max
±1% max
Span Tolerance (of FS) ≤ ±0.5% typical
±1% max
±1% max
Viewing: 0.5-2.5V Non-Ratiometric Click a tab above to switch output type
Excitation 3-5VDC unregulated
Current Consumption ≤3mA
Output Load 5kΩ, min
Frequency Response (min) ~1kHz, min
Zero Offset (of FS) ≤ ±0.5% typical
±1% max
±1% max
Span Tolerance (of FS) ≤ ±0.5% typical
±1% max
±1% max
Specifications are subject to change without notice.
Select an available configuration below to generate a 3D model, download the STEP file, and access dimension drawings. Don’t see the configuration you need? Contact us — we are ready to help.
3D Model Viewer Select a model below
Drag to rotate · Scroll to zoomSelect a configuration below to view the 3D model
Dimensions
Select a configuration below to view dimension drawing
⤢
For reference only. Contact Core Sensors if a dimension is not listed.
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Use the configuration tool below to build your CS51 model number. Don't see the options you need? Contact us — we excel in custom configurations.
Classic Model Number Configuration Guide Looking for our classic model number guide? Click to expand the full reference guide image.
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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 CS51 Non-Incendive Low Pressure Transducer.
Turck Minifast Cordset
The Turck Minifast cordset connects the sensor to the display/data acquisition instrumentation and transmits the output signal.
View Accessory →
Minifast Lockfast Lockout Device
Part No. 00818-00
The Lokfast guard is placed over the connection between the pressure transducer and the Turck Minifast cordset, locking the connection in place.
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 →
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 →How To Buy
Core Sensors offers flexible payment options for both new and established customers.
Credit Card
- Core accepts all major credit cards.
- No credit card processing fees apply.
- Download and complete the Credit Card Order Form and submit to [email protected].
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- If you are sales tax exempt, please submit a sales tax exempt form. If no exempt form is submitted, sales tax will be charged where applicable.
Core Sensors does not collect or store credit card information directly. We partner with Stripe, a PCI-DSS Level 1 compliant processor, to handle all transactions. Please do not send credit card information by email — it is not a secure way to transmit this data. See the Credit Card Order Form for the step-by-step process.
Net 30 Payment Terms
- To set up terms, download and complete the Payment Terms Credit Application and submit to [email protected].
- Or, if your company has a standard banking and trade reference form, that is an acceptable alternative. We also require a copy of your W-9 and sales tax exempt form (if applicable).
- Blank W-9 Form
Yes, the CS51 non-incendive low pressure transducer is manufactured for low-pressure measurement applications including vapor recovery units or VRU's. The CS51 features the non-incendive rating for hazardous locations. It can also be calibrated from zero pressure to virtually any full scale pressure or as a bi-directional pressure transducer to monitor partial or full vacuum pressures. For intrinsically safe options, view our CS81 series. Both series feature low pressure measurement with excellent accuracy and long-term stability.
The CS51 series can be manufactured with Hastelloy C276 material with either a 1/4" NPT or 1/2" NPT male process connection. This would be used in an application with higher H2S content, chlorides, or other liquids and gases not compatible with stainless steel. Contact us to review the application and liquid or gas being measured to find the right material option.
Resources
Yes, Core Sensors can calibrate the CS51 series to various absolute pressure measurement ranges with 0 to 15 and 0 to 30 PSIA being popular options. A pressure range code in the model matrix would look like "00015PA" to define 0 to 15 PSIA.
Resources
Datasheets
Wiring Guides
Certificates
Forms
General
Connect With Our Sales Team
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.
