Barometric Pressure Sensor | Pa600B

At a Glance

Description

Barometric pressure sensors are pressure sensors that measure changes in atmospheric pressure. They detect variations in atmospheric pressure by the diaphragm deformation (a flexible, thin circular membrane) and attached strain gauges which convert the change into an electrical signal. Barometric pressure sensors (also known as atmospheric pressure sensors) measure absolute air pressure relative to a reference of a zero-pressure vacuum.

Applied Measurements barometric pressure sensors Pa600B measure absolute pressure and are designed to measure atmospheric pressure fluctuations. They measure atmospheric pressure from 750-1250mbar absolute. Applied Measurements barometric pressure sensors are ideal for weather applications, including weather forecasting, where pressure changes in the atmosphere need to be monitored.

Barometric Pressure Sensor Applications Include:

• Weather Applications
• Weather Forecasting
• Atmospheric Changes
• Altitude Compensation
• Altimeters
• Remote Weather Stations

Constructed from stainless steel, and available with various process connections, these barometric pressure sensors are designed to withstand humidity, precipitation, and water ingress to IP65 as standard (IP67 optional).

Our barometric pressure sensors Pa600B have Viton O-ring, 303 stainless steel case, 316L stainless steel sensing diaphragm and a G¼ inch male process connection. Alternate case, O-ring material and process connections are available including G¼” female and ¼” NPT male.

The Pa600B barometric pressure sensors series provides a wide choice of electrical outputs from its ASIC-based amplifier circuit, these include 4-20mA, 0-5Vdc, 0-10Vdc, 10mV/V, as well as a ratiometric 0.5-4.5Vdc (10% to 90% of supply voltage) signal that requires a 5Vdc (2.7 – 5.5Vdc acceptable) to suit most data loggers.

Applied Measurements has a range of precise instrumentation that can be used with our barometric pressure sensors to give you a complete, calibrated atmospheric pressure measurement system.

Technical Specifications

Nominal Pressure Range	mbar absolute	750-1250
Permissible Overpressure	mbar	1500
Burst Pressure	bar	3

Output Signal & Supply Voltage	Wiring System	Output	Supply Voltage	Input Current	Input Resistance	Output Resistance
Pa642B	2 – wire	4 – 20 mA	9 – 32 Vdc	n/a	<500	<500
Pa605B	3 - wire	0 – 5V dc	9 – 32 Vdc	<10 mA	<500	<500
Pa6010B	3 - wire	0 – 10V dc	13 – 32 Vdc	<10 mA	<500	<500
Pa645B	3 - wire	0.5 to 4.5V dc	5 Vdc (2.7 - 5.5Vdc)	<3 mA	<500	<500
Pa602B	4 - wire	Passive mV/V (un-rationalised)	2 – 10 Vdc	<5 mA @ 10V	<2kΩ-6kΩ	<3.5kΩ-6kΩ

Performance
Accuracy (non-linearity, hysteresis, repeatability)	±%/Rated Output (BFSL)	<±0.25 <±0.1 optional
Setting Errors (Zero Balance + Full Scale Output)	2-wire, 3-wire 4-wire un-rationalised	Zero <±1% / FS, Span <±0.5% / FS Zero<0.1mV/V, Span ±30%
Permissible Load	2-wire 3-wire 4-wire	Rmax = [(VS - VS min) / 0.02] Ω Rmin = 10 kΩ Rmin = 11kΩ
Influence Effects	Supply Effects Load Effect	mV/V & 0.5 to 4.5V – Ratiometric, Other Voltage Outputs - <0.005 % FS / 1V 4 - 20mA = <0.05% FSO / kΩ
Response Time (10% - 90%)	ms	≤1 (mV/V versions) ≤10 (amplified versions)
Warm-Up Time (amplified versions only)	ms	2 typ.
Permissible Temperatures & Thermal Effects
Media Temperature	˚C	-40 to +125
Ambient Temperature	˚C	-20 to +85
Storage Temperature	˚C	-20 to +85
Compensated Temperature Range	˚C	+20 to +80
Thermal Zero Shift (TZS)	% / FS / ˚C	<±0.04 (standard) <±0.02 (option) <±0.01 (option)
Thermal Span Shift (TSS)	% output / ˚C	<-0.015
Electrical Protection
Reverse Polarity Protection		No damage but also no function
Electromagnetic Compatibility		CE Compliant
Insulation Resistance	Megohms Ω at 50V dc	>500
Mechanical Stability
Shock		100 g / 11 ms
Vibration		10 g RMS (20 ... 2000 Hz)
Materials
Housing & process connection		303 Stainless Steel 316L Stainless Steel (optional)
‘O’ ring seals		Viton NBR/Nitrile (optional) EPDM (optional) Chemraz (optional)
Diaphragm		316L Stainless Steel
Media wetted parts		Housing and process connection, ‘O’ ring seal, diaphragm
Misc
Weight	grams	100 nominal
Installation position		Any
Operational life	pressure cycles	> 100 x 106
Environmental Protection	Mini Plug + Socket M12 x 1 Connector Cable Gland	IP65 IP67 IP65

Product Dimensions

Barometric Pressure Sensor Pa600B Gland outline

Barometric Pressure Sensor Pa600B M12 Outline

Wiring Details

		Small Plug & Socket	IP65 Cable	M12 x 1, 4-pin Connector	6-pin Bayonet Connector
2-wire	+ve Supply -ve Supply Ground	Pin 1 Pin 2 Earth Pin	Red Blue Yellow	Pin 1 Pin 2 Pin 4	Pin A Pin B Pin D
3-wire	+ve Supply -ve Supply +ve Output Ground	Pin 1 Pin 2 Pin 3 Earth Pin	Red Blue Green Yellow	Pin 1 Pin 2 Pin 3 Pin 4	Pin A Pin B Pin C Pin D
4-wire	+ve Supply -ve Supply +ve Output -ve Output	Pin 1 Pin 2 Pin 3 Earth Pin	Red Blue Green Yellow	Pin 1 Pin 2 Pin 3 Pin 4	Pin A Pin B Pin C Pin D

Ordering Codes & Options

Pa642BP-BARO-A4AV-00-000 (example code)	Pa6	42B	P	-	BARO	-	A	4	A	V	-	00	-	000
Product Family
Pa6 Barometric Pressure Sensor	Pa6
Electrical Output
mV/V un-rationalised		02B
4-20mA (2-wire)		42B
0.5-4.5Vdc ratiometric (5V excitation)		45B
0-5Vdc		05B
0-10Vdc		010B
Electrical Connection / ATEX Certification
Mini DIN Plug & Socket			P
IP65 Cable Gland + Screened, Un-Vented PVC Cable			C
M12x1 4-pin Connector			M
M12x1 4-pin Connector + Mating Half			MM
6-pin Bayonet-Lock Mil-Spec Connector			BL
6-pin Bayonet-Lock Mil-Spec Connector + Mating Half			BLM
Pressure Range
750-1250mbar absolute				-	BARO	-
Accuracy (Non-Linearity & Hysteresis)
<±0.25%/FS (standard)							A
<±0.1%/FS (not available on Pa602)							B
Zero Temperature Compensation (TZS)
<±0.04%/FS/ºC								4
<±0.02%/FS/ºC								2
<±0.01%/FS/ºC								1
Process Connection
G¼” Male DIN 3852 in 303 St/Steel									A
¼” NPT Male in 303 St/Steel									C
G½” Male DIN 3852 in 303 St/Steel									R
O-Ring Material
Viton (FKM)										V
Nitrile (NBR)										N
EPDM (Ethylene Propylene Diene Monomer)										E
Cable Length (in metres)
None											-	00	-
1 metre											-	01	-
Specials Code
No Special Requirements														000