Specifications

87
PTB 100 Series Analog Barometers
FEATURES
 Standard pressure ranges
(1 hPa=1 mbar)
900...1100 hPa
800...1060 hPa
600...1060 hPa
 Accuracy at room temperature including
NIST traceability
±0.3 hPa 900...1100 hPa
±0.3 hPa 800...1060 hPa
±0.5 hPa 600...1060 hPa
 Long-term stability ±0.1 hPa/year
 Supply voltage 10...30 VDC
 On/off control with external trigger
 Output voltage 0...2.5 or 0...5 VDC
 Current consumption less than 4 mA
 Mountable on a 35 mm wide DIN rail
APPLICATIONS
 Environmental pressure monitoring
 Agriculture
 Hydrology
 Data buoys
 Laser interferometers
EXCELLENT LONG-TERM STABILITY
The PTB 100 series analog barometers are designed
both for accurate barometric measurements at room
temperature, and for general environmental pressure
monitoring over a wide temperature range. The
excellent long-term stability of the barometers
minimizes or even removes the need for field
adjustment in many applications.
The compact PTB 100 series barometers are ideal for
data logger applications because of their low power
consumption, selectable external on/off control,
practical output voltage ranges and three or four wire
connection capability.
The PTB 100 series barometers use the BAROCAP
®
silicon capacitive absolute pressure sensor developed
by Vaisala for barometric pressure measurement
applications. The Barocap sensor combines the
outstanding elasticity characteristics and mechanical
stability of single-crystal silicon with the proven
capacitive detection principle.
PTB 100