The 230-PTB110 Series Analog Barometers use the unique BAROCAP silicon capacitive absolute pressure sensor. The pressure sensor utilizes the outstanding elasticity characteristics of single-crystal silicon and achieves excellent repeatability, low hysteresis with very good temperature and long-term stability. The pressure sensor can withstand overpressure and mechanical shocks with no effect on performance.
The 230-PTB110 Barometer is designed both for accurate barometric pressure measurements at a room temperature and for general environmental pressure monitoring over a wide temperature range.
The PTB110 barometer uses the Vaisala BAROCAP® Sensor, a silicon capacitive absolute pressure sensor developed for barometric pressure measurement applications. The sensor combines the outstanding elasticity characteristics and mechanical stability of single-crystal silicon with the proven capacitive detection principle.
The excellent long-term stability of the barometer minimizes or even removes the need for field adjustment in many applications.
The PTB110 is suitable for a variety of applications, such as environmental pressure monitoring, data buoys, laser interferometers, and in agriculture and hydrology. The compact PTB110 is especially ideal for data logger applications as it has low power consumption. Also an external on/off control is available. This is practical when the supply of electricity is limited.
Operating range:
230-PTB1104: 600-1060 mb
230-PTB1105: 800-1060 mb
Temperature range: -40/+140 °F (-40/+60 °C)
Humidity range: Non-condensing
Linearity*: ± 0.25 mb
Hysteresis*: ± 0.03 mb
Repeatability*: ± 0.03 mb
Calibration uncertainty**: ± 0.15 mb
Accuracy at +20 °C***: ± 0.3 mb
Total accuracy at
+59/+77 °F (+15/+25 °C): ± 0.3 mb
+32/+104 °F (0/+40 °C): ± 0.6 mb
-4/+113 °F (-20/+45 °C): ± 1.0 mb
-40/+140 °F (-40/+60 °C): ± 1.5 mb
Long-term stability: ± 0.1 mb/year
Supply voltage: 10-30 Vdc
Current consumption: less than 4 mA
Output voltage: 0-2.5 Vdc or 0-5 Vdc
Resolution: 0.1 mb
Load resistance: Minimum 10 kohm
Load capacitance: Maximum 47 nF
Settling time: 1s to reach full accuracy after power-up
Response time: 500 ms to reach full accuracy after a pressure step
Pressure connector: M5 (10-32) internal thread
Pressure fitting: Barbed fitting for 1/8″
Minimum pressure limit: 0 mb abs
Maximum pressure limit: 2000 mb abs
Electrical connector: Removable connector for 5 wires (AWG 28-16)
Terminals
Pin 1: External triggering
Pin 2: Signal ground
Pin 3: Supply ground
Pin 4: Supply voltage
Pin 5: Signal output
Housing material (plastic cover): ABS/PC blend
Housing classification: IP32
Metal mounting plate: Aluminum
Dimensions: 3.54″ x 2.69″ x 1.11″ (90 mm x 68.4 mm x 28.1 mm)
Weight/Shipping: 3 oz (90 g)/1 lb (.5 kg)
Electromagnetic compatibility: Complies with EMC standard EN 61326-1, Generic Environment
* Defined as ± 2 standard deviation limits of end-point non-linearity, hysteresis error or repeatability error.
** Defined as ± 2 standard deviation limits of inaccuracy of the working standard including traceability to NIST.
*** Defined as the root sum of the squares (RSS) of end-point non-linearity, hysteresis error, repeatability error and calibration uncertainty at room temperature.
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