CS81 Intrinsically Safe Low Pressure Transducer, 1-49 PSI

Category Intrinsically Safe Tag HazLoc rated

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CS81 Intrinsically Safe Low Pressure Transducer, 1-49 PSI

The CS81 Intrinsically Safe Low Pressure Transducer is an industrial quality sensor for low pressure measurements in intrinsically safe hazardous locations. This pressure sensor features an all welded stainless steel construction, which allows it to offer a minimum IP65 rating. With a wide range of configurable options, the CS81 from Core Sensors, is a versatile pressure transducer that can operate in extreme conditions.

pressures from 1 to 49 PSI
media isolated
wide variety of configurations available
IP65 minimum rated
approvals and 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; CE

Description

The CS81 Intrinsically Safe Low Pressure Transducer is a high strength sensor 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, from Core Sensors, a versatile pressure transducer that can operate in some of the harshest conditions.

Low power outputs are available which can operate off of 3-5 VDC 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 hazardous area instrumentation in known Class I, Division 1 locations. Please review the Intrinsically Safe Operating Instructions prior to installation.

plug and play installation
CSA Class I, Division 1, Groups C, D T4 approval
pressures from 1 to 49 PSI, see model CS80 for pressures 50 PSI and above
media isolated
assembly in New Jersey, USA

CS81 Intrinsically Safe Low Pressure Transducer

We offer 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

Specifications for the CS81 Low Pressure Transducer

Performance	Thermal	Environmental
Accuracy @ 77˚F (25˚C)¹ ≤ ±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	Operating Temperature -40 to 176˚F -40 to 80˚C Operating Temperature (Electrical connection “F”, DIN 43650-A) -4 to 176˚F -20 to 80˚C Media Temperature -40 to 257˚F -40 to 125˚C Media Temperature (Electrical connection “F”, DIN 43650-A) -40 to 221˚F -40 to 105˚C Compensated Temperature 32 to 131˚F 0 to 55˚C Storage Temperature -40 to 257˚F -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)	EMI/RFI Protection Yes IP Rating* IP65 minimum Vibration 10 g, 20 to 2000 Hz Shock 100 g, 11 msec, 1/2 sine
¹Accuracy includes non-linearity, hysteresis and non-repeatability. ²IP Rating is dependent on electrical termination selected. Contact us for more information. IP Rating applies when electrical connector is attached with the appropriate ingress protection.

Performance

Thermal

Environmental

Accuracy @ 77˚F (25˚C)¹

≤ ±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

Operating Temperature

-40 to 176˚F
-40 to 80˚C

Operating Temperature
(Electrical connection “F”, DIN 43650-A)

-4 to 176˚F
-20 to 80˚C

Media Temperature

-40 to 257˚F
-40 to 125˚C

Media Temperature
(Electrical connection “F”, DIN 43650-A)

-40 to 221˚F
-40 to 105˚C

Compensated Temperature

32 to 131˚F
0 to 55˚C

Storage Temperature

-40 to 257˚F
-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)

EMI/RFI Protection

IP Rating*

IP65 minimum

Vibration

10 g, 20 to 2000 Hz

Shock

100 g, 11 msec, 1/2 sine

¹Accuracy includes non-linearity, hysteresis and non-repeatability.
²IP Rating is dependent on electrical termination selected. Contact us for more information. IP Rating applies when electrical connector is attached with the appropriate ingress protection.

Electrical Specifications

Current	Voltage	Ratiometric	Low Pressure	Millivolt
Outputs 4-20 mA Excitation 10-28 VDC Current Consumption 20 mA, typical Output Load 0-800 Ohms @ 10-28 VDC Frequency Response (min) ~250 Hz Zero Offset (of FS) ≤ ±0.5% typical, ±1% max Span Tolerance (of FS) ≤ ±0.5% typical, ±1% max	Outputs 1-5 V 1-6 V Excitation 10-28 VDC Current Consumption < 10 mA Output Load 5 K Ohms, min Frequency Response (min) ~1 kHz Zero Offset (of FS) ≤ ±0.5% typical, ±1% max Span Tolerance (of FS) ≤ ±0.5% typical, ±1% max	Outputs 0.5-4.5 V ratiometric Excitation 5 VDC ±0.5 V Current Consumption < 10 mA Output Load 5 K Ohms, min Frequency Response (min) ~1 kHz Zero Offset (of FS) ≤ ±0.5% typical, ±1% max Span Tolerance (of FS) ≤ ±0.5% typical, ±1% max	Outputs 0.5-2.5 V non-ratiometric Excitation 3-5 VDC unregulated Current Consumption ≤ 3 mA Output Load 5 K Ohms, min Frequency Response (min) ~1 kHz Zero Offset (of FS) ≤ ±0.5% typical, ±1% max Span Tolerance (of FS) ≤ ±0.5% typical, ±1% max	Outputs 10 mV/V Excitation 5 VDC, typical Current Consumption < 5 mA Output Load > 1 M Ohms Frequency Response (min) ~5 kHz Zero Offset (of FS) ≤ ±2% Span Tolerance (of FS) ≤ ±2%

Current

Voltage

Ratiometric

Low Pressure

Millivolt

Outputs

4-20 mA

Excitation

10-28 VDC

Current Consumption

20 mA, typical

Output Load

0-800 Ohms @ 10-28 VDC

Frequency Response (min)

~250 Hz

Zero Offset (of FS)

≤ ±0.5% typical, ±1% max

Span Tolerance (of FS)

≤ ±0.5% typical, ±1% max

Outputs

1-5 V
1-6 V

Excitation

10-28 VDC

Current Consumption

< 10 mA

Output Load

5 K Ohms, min

Frequency Response (min)

~1 kHz

Zero Offset (of FS)

≤ ±0.5% typical, ±1% max

Span Tolerance (of FS)

≤ ±0.5% typical, ±1% max

Outputs

0.5-4.5 V ratiometric

Excitation

5 VDC ±0.5 V

Current Consumption

< 10 mA

Output Load

5 K Ohms, min

Frequency Response (min)

~1 kHz

Zero Offset (of FS)

≤ ±0.5% typical, ±1% max

Span Tolerance (of FS)

≤ ±0.5% typical, ±1% max

Outputs

0.5-2.5 V non-ratiometric

Excitation

3-5 VDC unregulated

Current Consumption

≤ 3 mA

Output Load

5 K Ohms, min

Frequency Response (min)

~1 kHz

Zero Offset (of FS)

≤ ±0.5% typical, ±1% max

Span Tolerance (of FS)

≤ ±0.5% typical, ±1% max

Outputs

10 mV/V

Excitation

5 VDC, typical

Current Consumption

< 5 mA

Output Load

> 1 M Ohms

Frequency Response (min)

~5 kHz

Zero Offset (of FS)

≤ ±2%

Span Tolerance (of FS)

≤ ±2%

Model Configuration Guide

Approvals and Certifications

NOTE: Users must use an approved barrier to maintain listed certifications. See page 4 of the data sheet for entity parameters.

Common Uses of the CS81

external fuel tank level measurement
vapor recovery
process controls

(281) 491-3833

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Stafford, Texas