Vaisala GMW95 Manuel utilisateur
Quick Guide
M211511EN-C
Vaisala HMW90 and GMW90 Series
Transmitters with Digital Output
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PUBLISHED BY
Vaisala Oyj Phone (int.): +358 9 8949 1
P.O. Box 26 Fax: +358 9 8949 2227
FI-00421 Helsinki
Finland
Visit our Internet pages at www.vaisala.com.
© Vaisala 2013
No part of this manual may be reproduced, published
or publicly displayed in any form or by any means,
electronic or mechanical (including photocopying),
nor may its contents be modified, translated, adapted,
sold or disclosed to a third party without prior written
permission of the copyright holder. Translated manuals
and translated portions of multilingual documents are
based on the original English versions. In ambiguous
cases, the English versions are applicable, not the
translations.
The contents of this manual are subject to change
without prior notice.
This manual does not create any legally binding
obligations for Vaisala towards customers or end users.
All legally binding obligations and agreements are
included exclusively in the applicable supply contract
or the General Conditions of Sale and General
Conditions of Service of Vaisala.
1
ENGLISH
HMW90 and GMW90 Series Digital Models
Measurement type
HMW95/D, HMW90*
Humidity, temperature
GMW95, GMW95D
Carbon dioxide, temperature
GMW95R, GMW95RD,
GMW90*
Carbon dioxide, humidity,
and temperature
Output type
RS-485 (isolated, 1.5 kV)
Output protocols
BACnet MS/TP, Modbus
Supply voltage
18 ... 35 VDC
24 VAC ±20 % 50/60 Hz
Current consumption
(with 120 Ωtermination)
HMW90 series
Average
10 mA at 24 VDC
Maximum
30 mA at 24 VDC
Power consumption
< 0.3 W
GMW90 series
Average
20 mA at 24 VDC
Maximum
50 mA at 24 VDC
Power consumption
< 0.6 W
Dimensions (h × w × d)
132.7 × 81 × 30 mm
Setpoints for CO
2
LEDs
Green 0 ... 800 ppm
Yellow 800 ... 1200 ppm
Red 1200 ... 5000 ppm
Red (blinking) > 5000 ppm
* Configurable model, see Order Form for options.
Datasheets and user’s guides (in English) are
available on product pages at
www.vaisala.com/hmw90
www.vaisala.com/gmw90.
EN
2
Product Safety Information
When installing the transmitter, do not touch
exposed contacts on the component board.
When opening or closing the transmitter, avoid
damaging the transmitter electronics with the
two plastic supports on the bottom of the
mounting base.
Wire the transmitter according to the
terminal label on the mounting base.
Terminal layout depends on transmitter
model, so do not mix mounting bases from
different transmitter models.
If you connect more than one transmitter to a
single 24 VAC transformer, always connect the
phase (~) to the +Vs connector in each
transmitter.
The trimmers only turn 135 degrees each way,
less than half a rotation. Do not force the
trimmer past the stopping point.
3
Transmitter Parts - Outside
Adjustment
trimmers for
measured
parameters
Service port
Locking screw for mounting base
(not included, M3x6 recommended)
Window
for display
Grip
for slide
Display
Locking screw for slide
(not included, M3x6 recommended)
Type label
Gas inlet for
CO2calibration
(GMW models)
CO2level
indicator LEDs
(GMW models)
Holes for
indicator
LEDs
EN
4
Transmitter Body
HTM10 module
(temperature measurement)
DIP switches for protocol
and serial line settings
HUMICAP 180R sensor
(humidity measurement)
DIP switches for
transmitter address
RS-485 termination jumper
(connects a 120 Ωresistor)
GM10 module
(CO
2
measurement)
Mounting Base
Terminal label
Orientation arrow
Opening for cable
Place for zip tie
Opening for cable
Label for RS-485 baud rate
DIP switch settings
Screw terminals
5
Selecting the Location
The conditions at the location should represent well the
area of interest. Do not install the transmitter on the
ceiling. Avoid placing the transmitter near heat and
moisture sources, close to the discharge of the supply
air ducts, and in direct sunlight.
Plan the routing of the cable when selecting the
location. You can bring the cable to the transmitter
from above, or from the center opening of the
mounting base.
When bringing a cable through the wall, note
that the hole may also supply air from outside
the room into the transmitter. This may affect
the measurement readings. For example,
fresh concrete binds CO2and may cause low
readings, especially in new buildings. Seal the
cable opening if necessary.
EN
6
Opening and Closing
To open, use a screwdriver to push down the tab that
holds the transmitter cover and mounting base
together. Pull the mounting base away from the cover,
starting from the top.
To close, connect the bottom of the transmitter first,
and tilt the top forward to close the tab. Closing the
transmitter starts it up if power is supplied to the screw
terminals.
7
Installing the Mounting Base
Use the mounting holes to attach the mounting base
securely. Use at least two screws (not included). The
arrow on the mounting base must point straight up
after installation.
Proper orientation is important
: air
must flow through the vents on the bottom and top.
50
34 27
Ø 4.4
33.5
30.5
29.8
59.5
EN
8
Wiring
When wiring, observe the terminal labels on the
mounting base. Maximum wire size is 2 mm2(AWG14).
The RS-485 line of the transmitter is isolated from the
power supply. A separate ground reference terminal
(
GND
) is provided for the RS-485 connection.
If you are using a shielded cable, you can use the
Shld
terminal to hold the exposed part of the shield. The
Shld terminal is floating (not electrically connected).
D- -VsD+ +Vs
+
-
Power supply
18 ... 35 VDC
or 24 VAC ±20%
RS-485
Shld GND
You can bring the cable
to the housing from
above or from
behind (recommended).
If you are wiring a
GMW90 series
transmitter from above,
use a < Ø 5 mm cable,
and route it from the
left side of the
mounting base.
Ce manuel convient aux modèles suivants
6
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