Electrical Baro Transmitter

Baro Transmitter

Scalable measuring range and analogue output
Configurable mean value calculation, heating control,
energy saving mode and baud rate

The baro transmitter measures the “absolute air pressure” of the
atmosphere at the site. It is designed for application in the field of
environmental protection, where high accuracy, quick responding behaviour,
longterm stability and reliability are required.
The instrument is suited for indoor- and field application. A tempered piezoceramic
sensor for absolute pressure is used, which is characterized by thermal and mechanical
stability.
The electric connection is done via an 8-pole terminal strip and a special screwed
cable gland with smoothing function for air pressure.
The following outputs are available:
1 x serial interface 1 x frequency output 1 x Analogue output (U/I)

Digital Baro transmitter

Indicating measurement instrument with analogue output to determine the atmospheric pressure. An aneroid capsule with inductive displacement pickup serves as a sensor. The sensor signal is amplified electronically and displayed digitally on a LED- display. The current output is available for the connection of electronic recording and control instruments.

Order No.	Measuring range (factory settings)	Technical Data

3.1157.10.000	300-1100 hPa	RS485
		300 -1100 Hz
	800-1060 hPa	0 - 5 V
3.1157.10.040	300-1100 hPa	RS485
		300 - 1100 Hz
	600-1060 hPa	0 - 20 mA
3.1157.10.140	300-1100 hPa	RS485
		300 - 1100 Hz
	800-1060 hPa	0 - 20 mA
3.1157.10.041	300-1100 hPa	RS485
		300 -1100 Hz
	600-1060 hPa	4 - 20 mA
3.1157.10.141	300-1100 hPa	RS485
		300 -1100 Hz
	800-1060 hPa	4 - 20 mA
3.1157.10.061	300-1100 hPa	RS485
		300 -1100 Hz
	600-1060 hPa	0 - 10 V
3.1157.10.161	300-1100 hPa	RS485
		300 -1100 Hz
	800-1060 hPa	0 - 10 V

Accuracy with heating @ -40 +65°C		±0,25 hPa
Accuracy w/o heating @ -40 +65°C		±1 hPa
Long-term stability		±0,1 hPa/year
Operating voltage depending on model		5/8/12-24 VDC
Current consumption (@12VDC)	w/o heating	10 mA (max.)
	with heating	115 mA (max.)
Connection	Screwed cable gland and terminal strip
Ambient temperature	-40 ... +65 °C
Dimension	approx. 110 x 82 x 57 mm
Weight	0,15 kg

Order No.
3.1159.00.040	Electr. output	0 ... 20 mA
.041		4 ... 20 mA
	Load	<=250 ohm
	Measuring range	913,3 ... 1113,3 hPa
	Accuracy	±0,5 hPa (at NN)
	Display	4½ -digit, LED red
	Resolution	0,1 hPa
	Temp. range	0 ... +50 °C
	Above sea level	0 ... 850 m
	Operating voltage	230 V AC or 115 V AC or 12 ... 28 V DC
	Construction	Panel mounting
	Dimension	96 x 96 x 127 mm
	Weight	0,6 kg

Order No.
3.1158.00.075	Measuring range	800 ... 1060 hPa (B-278-1T)
3.1158.10.075		600 ... 1060 hPa (B-278-2T)
B- 278-1T	Accuracy @ 20°C	±0,3 hPa
	Linearity	±0,25 hPa
	Hysteresis	±0,03 hPa
B- 278-2T		±0,5 hPa
		±0,4 hPa
		±0,05 hPa
	Resolution	0,01 hPa
	Long-term stability	±0.1 hPa/year
	Electr. output	0 ... 5 V DC
	Operating voltage	9,5 - 28 VDC (3 mA)
	Connectoin	5 pole screw clamp
	Ambient temperature.	-40 ... +60 °C
	Dimension	61 x 91 x 25 mm
	Weight	0,14 kg

Baro Transmitter B-278-1/2 T

Baro transmitters measure the barometric ambient pressure and emit the measured value as an electrical voltage value. Owing to its low current consumption, It is particularly suitable for use in combination with data loggers. To be mounted preferably in data logger systems.