senseca PBS860, PBS880 Barometric Transmitters User Manual
- July 27, 2024
- senseca
Table of Contents
OPERATING MANUAL
PBS860 / PBS880
Barometric transmitters
V1.0
Introduction
PBS860 and PBS880 are barometric transmitters equipped with a precision
temperature-compensated piezo-resistive pressure sensor.
PBS860 and PBS880 differ in the measuring range: 600…1100 hPa for PBS860,
800…1100 hPa for PBS880.
The sensor is factory calibrated and has excellent time stability and
repeatability.
Depending on model, the transmitters have 2-wire (current loop) 4…20 mA, 0…1
V, 0…5 V or 0…10 V analog output.
Available as an accessories a static port with support bracket to minimize the
effect of dynamic pressure due to the wind in open field measurements.
The table below highlights the measuring range and the type of output of the
various models.
| Model | Measuring range | Analog output |
|---|---|---|
| PBS860D | 600. 1100 hPa | 2-wire (current loop) 4…20 mA |
| PBS860W | 0…1 V | |
| PBS860X | 0…5 V | |
| PBS860Y | 0…10 V | |
| PBS88OD | 800. 1100 hPa | 2-wire (current loop) 4…20 mA |
| PBS88OW | 0…1 V | |
| PBS88OX | 0…5 V | |
| PBS880Y | 0…10 V |
Technical specifications
| Sensor | Piezoresistive |
|---|---|
| Measuring range | PBS86O: 600…1100 hPa |
PBS88O: 800…1100 hPa
Accuracy| ± 0.5 hPa @ 20 °C
Temperature drift| Zero: < 1% F.S. / Span: < 1% F.S. @ T=-20…+60 °C
Long-term stability| < 0.25% F.S./6 months 0 20 °C
Output| Depending on model:
2-wire (current loop) 4…20 mA
0…1 V, 0…5 V or 0…10 V
Current output load resistance: RL < (Vdc-7)/0,022) Voltage output load
resistance: RL > 10 len
Power supply| 8…35 Vdc (except PBS8x0Y) 15…30 Vdc (only PBS8x0Y)
Consumption| <4 mA 0 24 Vdc for voltage output versions Equal to output
current for current output version
Connection| Internal screw terminal header / PG7 cable gland for power supply
and output
Operating conditions| -30…+60 °C / 0…100%RH
Compatible media| Air and dry gases
Materials| Transmitter: Polycarbonate, pressure input in AISI 304
Static port (optional): ASA
Support bracket (optional): Aluminium alloy
Housing dimensions| 120 x 80 x 55
Weight| 250 g approx.
570 g approx. the static port with support bracket
Protection degree| IP65
Installation
The transmitter is wall mounted using the two holes on the back (open the cover to access the holes and the terminal header for electrical connections).
It is advisable to mount the transmitter so that the pressure input is facing
downwards, in order to reduce the accumulation of dust and dirt on the input.
For outdoor installation, the use of the optional static pressure port is
recommended, in order to minimize the measurement error caused by the wind
flow on the pressure input (the measurement deviation due to wind is less than
0.3 hPa @ 20 m/s if the static port is used). The static port includes a
support bracket suitable for fixing to a Ø30…50 mm mast.
3.1 Electrical connections
The transmitter has an internal screw terminal header for connecting the power
supply and the output.
Maintenance
it is recommended to perform a calibration check of the instrument annually at
accredited laboratories.
Do not use aggressive cleaning agents or incompatible with the materials
indicated in the technical specifications. For cleaning, use a soft dry cloth
or slightly dampened with clean water.
Safety instructions
The instrument proper operation and operating safety can be ensured only in the climatic conditions specified in this manual and if all standard safety measures as well as the specific measures described in this manual are followed.
Do not use the instruments in places where there are:
- Corrosive or flammable gases.
- Direct vibrations or shocks to the instrument.
- High-intensity electromagnetic fields, static electricity.
User obligations
The instrument operator shall follow the directives and regulations below that
refer to the treatment of dangerous materials:
- EU directives on workplace safety.
- National law regulations on workplace safety.
- Accident prevention regulations.
Accessories ordering codes
| FIXB001 | Static port with support bracket and silicone tube. |
|---|---|
| SWD10F | 100…240 Vac / 12 Vdc – 1A power supply. Includes adapter cable with |
jack connector on the power supply side and free wires on the instrument side.
NOTES
WARRANTY
The manufacturer is required to respond to the “factory warranty” only in
those cases provided by Legislative Decree 6 September 2005 – n. 206. Each
instrument is sold after rigorous inspections; if any manufacturing defect is
found, it is necessary to contact the distributor where the instrument was
purchased from. During the warranty period (24 months from the date of
invoice) any manufacturing defects found will be repaired free of charge.
Misuse, wear, neglect, lack or inefficient maintenance as well as theft and
damage during transport are excluded. Warranty does not apply if changes,
tampering or unauthorized repairs are made on the product. Solutions, probes,
electrodes and microphones are not guaranteed as the improper use, even for a
few minutes, may cause irreparable damages.
The manufacturer repairs the products that show defects of construction in
accordance with the terms and conditions of warranty included in the manual of
the product. For any dispute, the competent court is the Court of Padua. The
Italian law and the “Convention on Contracts for the International Sales of
Goods” apply.
TECHNICAL INFORMATION
The quality level of our instruments is the result of the continuous product
development. This may lead to differences between the information reported in
the manual and the instrument you have purchased.
We reserve the right to change technical specifications and dimensions to fit
the product requirements without prior notice.
DISPOSAL INFORMATION
Electrical and electronic equipment marked with specific symbol in compliance
with 2012/19/EU Directive must be disposed of separately from household waste.
European users can hand them over to the dealer or to the manufacturer when
purchasing a new electrical and electronic equipment, or to a WEEE collection
point designated by local authorities. Illegal disposal is punished by law.
Disposing of electrical and electronic equipment separately from normal waste
helps to preserve natural resources and allows materials to be recycled in an
environmentally friendly way without risks to human health.
Senseca Italy S.r.l.
Via Marconi, 5
35050 Selvazzano Dentro (PD)
ITALY
info@senseca.com