Barometric Pressure Sensors combine high accuracy and low power over a wide range of pressures and temperatures.
Model 61302V provides a calibrated 0-5 VDC analog output. Analog current consumption is less than 3 mA.
A special “sleep” mode further reduces current to about 1 µA. RS232 serial output is also available in the
standard sensor. Model 61302L features a standard 4-20 mA analog
output. Two serial options, RS-232 and RS-485, are included with this model.
The compact size of the barometer allows easy placement in most standard
instrument enclosures. A plug-in connector simplifies wiring.
For outdoor use, an optional Weatherproof Enclosure offers a convenient
mounting location while the Pressure Port helps minimize dynamic pressure
errors due to wind.
MODEL 61302L Barometric Pressure Sensor is a versatile
electronic barometer featuring high accuracy, low power,
wide operating temperature range, and calibrated 4-20 mA
output, and RS-232/485 serial data I/O.
The 4-20 mA output and RS-485 serial I/O make the
61302L ideal for commercial and industrial applications
that commonly use these signals.
Full scale current output may be set to span any portion of
the 500 to 1100 hPa operating range. Serial output options
include continuous or polled ASCII text output or NMEA
marine output. The sensor is supplied with the following
The sensor operates over a temperature range of -40°C to
+60°C and must remain dry. Electrical connections are made
with the 5-position terminal plug included with the sensor.
Jumper settings may be used to select operating options.
Access jumpers by loosening two screws in the sensor
enclosure and removing the cover. See Appendix A for wiring
details and jumper settings.
Operation begins approximately 1 second after power is
applied. Output will appear after a delay determined by
the number of samples averaged and the output rate. With
default values (1.8 Hz output and 10 samples averaged),
output begins after an initial 5 second delay then remains
continuous at the 1.8 Hz rate. Parameters for output rate
and number of samples averaged may be changed using
he MODEL 61302L barometer requires no regular
maintenance. Periodic calibration certification, if
required, is available from the factory.
This product is warranted to be free of defects in
materials and construction for a period of 12 months
from date of initial purchase. Liability is limited to repair
or replacement of defective item. A copy of the warranty
policy may be obtained from R. M. Young Company.
This product complies with European CE requirements for
the EMC Directive. Please note that shielded cable must
|BAROMETRIC PRESSURE SENSOR – 0-5 VDC
|BAROMETRIC PRESSURE SENSOR – 4-20 mA
|Pressure Port with Offset Bracke
500 to 1100 hPa
-40 to +60°C
0.2 hPa (25°C)
0.3 hPa (-40 to +60°C)
0.05% of analog pressure range
Analog Temperature Dependence
0.0017% of analog pressure range/ °C (25°C reference)
Long Term Stability:
0.2% FS per year
Full duplex RS-232
Polled or continuous
ASCII text, NMEA
Half duplex RS-485 (61302L only)
0 to 5000 mV, 0 to 2500 mV (61302V)
4 to 20 mA (61302L)
Serial 0.01 hPa
Analog 0.025% of analog scale
7 to 30 VDC
61302V – Vout, 2.8 mA
– Sleep mode, 1.4 μA
– RS-232, 7 mA
61302L – 4-20 mA, 25 mA max
– RS-232 or RS-485, 7 mA
90 mm (3.6 in) x 60 mm (2.4 in) x 20 mm (0.8 in)
Defined as ±1 standard deviation from NIST traceable
pressure reference. Includes non-linearity, hysteresis,
repeatability, and calibration uncertainty.
Defined as ±1 standard deviation from ideal analog
output. Total analog output accuracy is the root sum
square of digital accuracy, analog accuracy, and analog