Vaisala PMB100 User Manual download pdf

www.vaisala.com M210839EN-A

USER'S GUIDE

Vaisala BAROCAP

Barometer PTB110 Series

– Several pressure ranges

– Accuracy ±0.3 hPa at +20 °C

– Long-term stability ±0.1 hPa/year

– On/off control with external trigger

– Output voltage 0 … 2.5 or 0 … 5 VDC,

frequency output

– Current consumption less than 4 mA

– Mountable on a (35 mm wide) DIN rail

– NIST traceable (certificate included)

– BAROCAP

sensor

PRODUCT DESCRIPTION

The PTB110 barometer is a micro controller based barometer

including a voltage or frequency output. The barometer can be

supplied with several pressure ranges. The output of the

barometer is a calibrated barometric pressure reading.

The barometer uses the Vaisala BAROCAP

Sensor, a silicon

capacitive sensor developed by Vaisala for barometric pressure

measurement applications. The BAROCAP

sensor is especially

designed for accurate and stable measurement of barometric

pressure.

INSTALLATION

The PTB110 barometer is intended to be installed indoors.

Installing outdoors requires a protecting enclosure. A DIN rail

mounting option enables the mounting of the barometer on a 35

mm wide standard DIN mounting rail.

The barometer should be installed in a vertical position with the

connectors pointing downwards to prevent accumulation of

condensated water

OPERATING MODES

The PTB110 barometer has two operating modes, the normal

and the shutdown mode. The factory setting is the normal mode

Normal Mode

 The device is in the normal mode when the power on

jumper is connected (see figure on the following page).

 In the normal mode the barometer measures

continuously when powered-up.

Shutdown Mode

 The device is in the shutdown mode when the power

on jumper is not connected.

 In the shutdown mode, the barometer can be turned on

or off by switching the pin 1. The pin 1 is located at

the customer port, on the left edge of the screw

terminal.

NOTE The other jumpers inside the barometer are

set at the factory and they must not be

touched.

ELECTRICAL CONNECTIONS

The PTB110 barometer contains a screw terminal block located at

the customer port. The screw terminal includes the electrical

input/output pins presented in the table below.

Pins in screw terminal Description/Value

Pin 1: EXT_TRIG External trigger input

Pin 1 is used as a power on/off

switch in shutdown mode as

follows:

Power off 0 VDC

Power on 5 VDC

Pin 2: AGND Analog ground

Pin 3: GND Ground

Pin 4: SUPPLY Supply voltage

Pin 5: VOUT/FOUT Voltage output/

Frequency output

In the normal mode no connection to the Pin 1 EXT_TRIG is

recommended.

The barometer is protected against a reverse operating voltage.

Both grounds (AGND and GND) are in the same electrical

potential in the barometer. Both three-wire and four-wire

connections can be used. However, it is recommended to use the

four-wire connection, especially if the signal wires are long.

1 2 3 4

Summary of Contents

Page 1 - Barometer PTB110 Series

www.vaisala.com M210839EN-A 1 USER'S GUIDE Vaisala BAROCAP® Barometer PTB110 Series – Several pressure ranges – Accuracy ±0.3 hPa

Page 2 - PP ⋅+=

www.vaisala.com M210839EN-A 2The connections can be made as illustrated below. READING THE OUTPUT The barometric pressure (P) can be calcula

Page 3 - TECHNICAL DATA

www.vaisala.com M210839EN-A 3Dimensions TECHNICAL DATA Operating range (1 hPa=1 mbar) Description/Value 500...1100 hPa 600...1100 hPa 800.

Page 4 - WARRANTY

www.vaisala.com M210839EN-A 4SAFETY PRECAUTIONS The PTB110 delivered to you has been tested for safety and approved as shipped from the facto

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Vaisala PMB100 User Manual

Browse online or download User Manual for Unknown Vaisala PMB100. Vaisala BAROCAP Barometer PTB110 Series

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