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CSA Class I, Division 1, Groups C, D T4 Approved
Intrinsically Safe Low Pressure Transducer
CS81 Series
Features
Great For…
**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.
About the CS81
Designed for Low Pressure Measurement Applications
The CS81 Intrinsically Safe Low Pressure Transducer is a high strength sensor designed for low pressure measurements in intrinsically safe areas. The CS81 features an all welded stainless steel construction for a minimum IP65 rating. A wide range of configurable options makes the CS81 a versatile pressure transducer that can be designed to operate in some of the harshest conditions. Low power outputs are available which can operate off of 3-5VDC of unregulated power to extend battery life in remote applications. The CS81 is an excellent solution for applications such as external fuel tank monitoring, vapor recovery and natural gas compression.
Caution must be taken when installing and operating the CS81 in known Class I, Division 1 hazardous locations. Please review the Intrinsically Safe Operating Instructions prior to installation.
Plug and Play Installation
High Quality Accessories In Stock
Core Sensors offers a variety of high quality accessories to bundle with the CS81 Intrinsically Safe Low Pressure Transducer to simplify installation.
Common accessories include:
- M12x1 cordsets
- Bayonet cordsets
- Minifast cordsets
- Field wireable mating connectors
- Cooling adapters
- Schrader adapters
View more accessories here.
CS81 Specifications
Performance
Accuracy @ 25°C*
≤ ± 0.25% BFSL
≤ ± 0.5% BFSL (2 PSI & below)
≤ ± 1% BFSL (Millivolt output signal)
Stability (1 Year)
≤ ± 0.25% of 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 to +80°C
Operating Temperature
(Electrical connection “F”, EN175301-803 Form A)
-20 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 to +65°C
Storage Temperature
-40 to +125°C
TC Zero
≤ ± 1% of FS
≤ ± 2% of FS (2 PSI & below)
TC Span
≤ ± 1% of FS
≤ ± 2% of FS (2 PSI & below)
Environmental
EMI/RFI Protection
Yes
IP Rating*
IP65 minimum
Vibration
10g, 20 to 2000Hz
Shock
100g, 11msec, 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
Current
Outputs
4-20mA
Excitation
10-28VDC
Current Consumption
20mA, typical
Output Load
0-800 Ohms @ 10-28VDC
Frequency Response (min)
~250Hz
Zero Offset (of FS)
≤ ± 0.5% typical, ± 1% max
Span Tolerance (of FS)
≤ ± 0.5% typical, ± 1% max
Voltage
Outputs
1-5V
1-6V
Excitation
10-28VDC
Current Consumption
<10mA
Output Load
5K Ohms, min
Frequency Response (min)
~1kHz
Zero Offset (of FS)
≤ ± 0.5% typical, ± 1% max
Span Tolerance (of FS)
≤ ± 0.5% typical, ± 1% max
Ratiometric
Outputs
0.5-4.5V ratiometric
Excitation
5VDC +/- 0.5V
Current Consumption
<10mA
Output Load
5K Ohms, min
Frequency Response (min)
~1kHz
Zero Offset (of FS)
≤ ± 0.5% typical, ± 1% max
Span Tolerance (of FS)
≤ ± 0.5% typical, ± 1% max
Low Power
Outputs
0.5-2.5V non-ratiometric
Excitation
3-5VDC unregulated
Current Consumption
≤ 3mA
Output Load
5K Ohms, min
Frequency Response (min)
~1kHz
Zero Offset (of FS)
≤ ± 0.5% typical, ± 1% max
Span Tolerance (of FS)
≤ ± 0.5% typical, ± 1% max
Millivolt
Outputs
10mV/V
Excitation
5VDC, typical
Current Consumption
< 5mA
Output Load
>1M Ohms
Frequency Response (min)
~5kHz
Zero Offset (of FS)
≤ ± 2%
Span Tolerance (of FS)
≤ ± 2%
Specifications are subject to change without notice
Model Number Configuration
Not all configurations are available. Our sales team can recommend the closest available configuration based on your requirements.
Contact Core Sensors for configurations not shown.
Ordering Examples:
- CS81-2A00010PG4D000-00 (1/4″ Male NPT, 316L, 0-10 PSI gauge, 4-20mA, Mini-DIN 43650 Form C)
- CS81-2A001200MA4A0103-00 (1/4″ Male NPT, 316L, 700 to 1200 mbar absolute (barometric pressure option code), 4-20mA, M12)
- CS81-1A00005PB1A000-00 (1/2″ Male NPT, 316L, ±5 PSI (bi-directional), 1-5V, M12x1)
- CS81-2C00015PV4Z000-01 (1/4″ Male NPT, Hastelloy C276, -14.7 to 15 PSI (vacuum gauge), 4-20mA, 1/2″ NPT Conduit with 1 meter cable)
Note: Mobile users can use the zoom feature to view the model number configuration matrix clearly.
Dimensions
Note that dimensions are for reference only. Please contact us if you do not see a dimension listed.
Note: Mobile users can use the zoom feature to view the dimensions clearly.
Downloads
Datasheets
Wiring Guides
Certificates
Forms
General
Connect With Our Sales Team
Do you have questions regarding the CS81 intrinsically safe pressure transducer? 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.
