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CS81

Intrinsically Safe Low Pressure Transducer

FEATURES

  • CSA Class I, Division 1, Groups C, D T4 Approved
  • Pressures from 1 PSI up to 49 PSI

    See model CS80 for pressures 50 PSI and above.

  • Media isolated
  • Assembled in New Jersey, USA

COMMON APPLICATIONS

  • External fuel tank level measurement
  • Vapor recovery
  • Process controls

About the CS81

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.

Approvals/Certifications

  • CSA Class I, Division 1, Groups C, D T4
  • Class I, Zone 0 AEx ia IIB T4 Ga (Ex ia IIB T4 Ga)
  • ABS (American Bureau of Shipping) Approved
  • CE

    NOTE: Must use an approved barrier to maintain listed certifications. See page 4 of datasheet for entity parameters.

High Quality Accessories In Stock

Plug and Play Installation

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:

– Mating cordsets
– Field wireable mating connectors
– Cooling adapters

View more accessories here.

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Performance

Accuracy*
≤ ± 0.25% BFSL
≤ ± 0.5% BFSL (2 PSI & below)
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”, DIN 43650-A)
-20 to +80°C
Media Temperature
-40 to +125°C
Media Temperature
(Electrical connection “F”, DIN 43650-A)
-40 to +105°C
Compensated Temperature
0 to +55°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

Electrical (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

Electrical (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

Electrical (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

Electrical (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

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Ordering Example: CS81-2A00010PG4D000-00 (1/4″ Male NPT, 316L SS, 0-10 PSI gauge, 4-20mA, Mini-DIN 43650 Form C)
– 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.

Note that dimensions are for reference only. Please contact us if you do not see a dimension listed.

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Contact our sales team

We are happy to answer your questions. 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.