Example systems for climate monitoring
Systems for climate monitoring are required in such places as:
- production space and warehouses of the industrial plants
(especially in the food trade),
- warehouses of the pharmaceutical wholesale,
- sanitary and epidemiological stations,
- quality control laboratories,
- meteorological laboratories,
- Army warehouses,
- churches and museums (monument protection),
- companies that apply norms series ISO-9000,
- meteorological stations.
The measurement devices produced by LAB-EL are provided along with
individual calibration certificates from the laboratories of the
following institutions:
- The Central Measurement Office in Warsaw (for hytherographs),
- The Airforce Technology Institute in Warsaw (for barometers,
accreditation from the Central Measurement Office in Warsaw),
- The Energy Institute in Warsaw (for thermometers, accreditation
from the Central Measurement Office in Warsaw),
- The Meteorology and Water Economy Institute in Warsaw (for
meteorological devices),
- The Central Army Meteorology Office in Zielonka (for devices used
in the Army).
A full offer of the
LAB-EL company along with the basic device technical data is
available on the Internet page: http://www.label.com.pl.
One can get accustomed with the example use of our devices in
meteorology on our metrology station's internet page: http://meteo.label.com.pl/
Below in the attached description the most commonly used climate
supervision configurations are introduced.
One point climate monitoring - stationary
Hytherograph (thermometer and humidity meter) LB-701
with a reading panel LB-705 (equipped with a an internal memory
registering the measurement
results) is most commonly used for climate supervision in one point.
Hytherograph LB-701 has a small size plastic cylinder casing and
because of it can be easily placed in the area controlled. It can be
i.e. hanged above a meteorological post in a laboratory or placed in a
climate chamber. Hytherograph is connected to the reading panel LB-705
by a cable 1 meter long. The length of the cable can be extended up to
15 meters without
effecting the measurement accuracy because of the digital transmission
between the hytherograph LB-701 an the attached to it reading panel.
The reading panel is adapted to be hanged on the on the wall (i.e.
laboratory, climate chamber). Because of a big easy to read LCD screens
the measurement results can be seen from a long distance.
In case when, the regulation functions are required at the
measurement spot one should use a hytherograph LB-701
with a control reading panel LB-725.
The reading panel LB-705
(or a control reading panel LB-725) an be
attached to any PC computer using its RS-232 (COM) port. The device is
equipped with adequate software (for DOS and Windows 95/98 systems)
allowing on current measurement monitoring as well as on reading of the
measurement history from the device's memory (the following panels have
memories LB-705PR i LB-725). The cable provided along with the device
which connects it to a computer port RS-232 is typically 2 meters long
and can be extended to approximately 20 meters. With greater distances
(up to 200 meters) a separator series LB-300 should be used
additionally. Only a hytherograph LB-701 (which can be easily
disconnected from the reading panel) is passed along to a laboratory
for calibration. In case when, the temperature measurement is required
(without humidity) a probe LB-701T can be used for cooperation with the
mentioned above panels. The probe is available in two versions: for the
measurement of air temperature or for the measurement for various media
according to the clinent's expectations.
One point climate monitoring -portable and
transportable in cars
Devices used for temperature measurement
were introduced in a separate leaflet.
The climate control can be performed at any
location using a portable device LB-701
with panel LB-706
powered form a battery or from an additional outside feeder or from
12..24V source. The device has a built in screen and a memory for the
measurement results as well as an interface which allows on
transferring the measurement results to a PC computer and creating a
protocol.
For control of the climate conditions in
transport one can use the miniature temperature recorders LB-515 (without a
display) and LB-520T
(with a display) or a miniature humidity and temperature recorder LB-520 (with a
display). All of those devices have big measurement result memories and
are battery powered where it is sufficient for approximately 5 years
(without the need of charging the batteries). Data reading starts when
the recorders get attached to a PC computer. When using miniature
recorders one can built one point as well as multi point stationary
climate supervision system in situations where using the permanent
cables would not be possible. Such miniature recorders are especially
recommended in pharmacies, pharmaceutical and food warehouses.
The miniature temperature or humidity recorder
EBI-A allows on
registry in very hard work conditions (high temperatures and humidity,
full liquid immersion) it can be used with food heat processing control
(i.e. in autoclaves).
Climate monitoring - with measurement and alarm
transmission through SMS messaging and GPRS
Climate control (temperature and humidity or 2
temperatures) can be performed using a portable device LB-707
in any location (cooperating with adequate sensors) powered from a
battery or an outside voltage source or 12..24V source. The device
has a display and a built in measurement results memory as well as an
interface which allows on rewriting the measurement results to a PC
computer and creating a measurement protocol. The device has a built in
GSM modem for radio transmissionSMS/GPRS
and because
of it can be used in any place.
The meter is designed for climate parameter
control in rooms, chambers and fridges as well as for monitoring the
temperatures of solids and liquids (depending on the probe's
construction). It can be used as a recorder in transport or a device
which documents the processes of storing. The panel allows on parameter
registry lasting many days with a possibility of later reading it where
using the GPRS registry allows on following up to date the measurement
results from every location where there is a GSM signal (i.e. car on
the road). The device can supervise temperature and humidity and send
warning communicates to mobile phones. The panel can also monitor the
power supply status of other devices and send alarming messages about
the lack of power supply.
Climate monitoring in many locations
simultaneously - big systems
Concentrator LB-731 with attached
hytherographs is most commonly used for simultaneous climate
supervision in big systems in many locations (humidity meters and
thermometers in numbers that are from 1 to 16 and depend on the system
user's needs). The concentrator LB-731 is placed in a room of a
person responsible for climate supervision usually it is near to a PC
computer through which the measurement results' history reading is
performed from a system. The hytherographs are placed in controlled
rooms.
Depending on the user requirements various thermo hytherographs or
thermometer versions are used:
- LB-710 - air temperature and humidity
measurement in cases when an additional reading in the place of
measurement is not required (closed storage rooms),
- LB-710T - temperature measurement in
case when an additional reading from a measurement place is not
required,
- LB-701 with panel LB-705 - in case when
an additional reading of the current temperature and humidity in the
place of measurement is required (climate chambers),
- LB-701 with panel LB-725 - in case
when an additional reading of the current temperature and humidity
as well as regulation in the place of measurement is required
(climate chambers),
- LB-701T with panel LB-705 albo LB-725
- in case when measurement is required (and possibly regulation) - only
temperature,
- LB-720C - hytherograph LB-710 with
panel LB-722C
- in case when an additional reading in the
place of measurement and regulation is required (in warehouses that are
being dried).
Hytherographs (or thermometers) can be placed quite far away from
the concentrator LB-731. They are connected to it using two conductors
of a cable of any type. However it is important that the loop’s
resistance of the connecting cables is lower than 100 ohm. In practice
it means that when using a telephone cable (i.e. type YTKSY-1x2x0,5)
the distance between a hytherograph and a concentrator LB-731 can
amount up to 500 m. When a bigger distance is required cables of wider
conductor of a cable diameter are used.
The concentrator LB-731
can be attached to any PC computer using its RS-232 (COM) port. The
device is provided in a set with software allowing on current
measurement monitoring and reading of the measurement history from the
device’s memory. The cable provided along with the device connecting it
with the computer port RS-232 is typically approximately 2 m long and
can be extended up to 20 m. With bigger distances (up to 200 m) a
separator series LB-300 should be used
additionally.
The concentrator LB-731
can be attached with a signaling device alarm that focuses the service
stuffs’ attention about the exceed of limit temperatures or/ and
humidity in the monitored rooms. The alarm thresholds in a concentrator
LB-731 are individually programmed for each hytherograph.
Sample solutions for big systems were discussed in detail in the
description of the measurement system based
on the concentrator LB-731.
The devices mentioned above create a base for system construction
and their configuration was introduced in the description of the Measurement system
based on the concentrator LB-731. Sample implementation was
introduced in the description of the Warehouse
System
Monitoring (called later SMM), which supervises air temperature
(and eventually humidity) in the monitored spaces and notifies
automatically a user about any possible abnormalities. It is performed
individually from the actual user’s place of stay – by a SMS (mobile
phone) or via e-mail. The system also allows on storing information
about the sensor status and measurement in database files to be read
and processed later. The system can serve 16 concentrators LB-731 and
each can be attached to 16 sensors LB-710 (it is possible to control
256 locations at the same time).
Only hytherographs LB-701 (easily disconnected from the reading
panels) and hytherographs LB-710 are passed to a laboratory for
calibration.
Climate monitoring in many locations
simultaneously - small systems
Converter LB-486
is a device most commonly used for simultaneous climate
supervision in few points of a small location. It is attached with
hytherograph in a number required by the system user from one to four.
The converter LB-486P is placed in a room of a person responsible for
climate supervision usually near a PC computer which is used for
reading the current measurement results and the measurement result
history from the system (converter does not have its own screen
displaying the measurement results). Hytheropgraphs are placed in the
controlled rooms. Various hytheropgraph versions are used depending on
the client’s needs just as it was introduced in the chapter: Simultaneous
climate supervision in many points – big systems.
Additionally there is a possibility of attaching a converter LB-486 to a set of
various measurement devices that work using a digital
current loop
(in abbreviation CCP such as LB-705,
LB-710,
LB-710T,
LB-711,
LB-715,
LB-716,
LB-716D,LB-720,
LB-720C,
LB-724,
LB-725,
LB-746) and a
rain-gauge (i.e. ARG-100)
what allows on creating measurement device configurations that are
adequate to a user’s needs.
The converter LB-486
can be attached to any PC computer using its RS-232 COM port. The
device is provided with software, which allows on current measurement
monitoring and measurement history readings from the device’s memory.
The device is provided with a cable that connects it with a computer
port RS-232. And is typically 2 m long. However its length can be
extended to approximately 20 m. With bigger distances (up to 200 m)
additionally a separator series LB-300 should be used). When using an
ethernet module there is a possibility of attaching the converter
LB-486 and the attached to it measurement devices directly to the
internet (intranet).
Air pressure measurement
In many cases air pressure measurement and registry of is required.
In case of one port control a laboratory barometer LB-750 can be used.
In case of small and big systems one can use a barometer LB-750 or its lower
cost version LB-716.
The measurement results can be monitored using a converter LB-486 or a
concentrator LB-731.
In case when the measurement of three parameters (air pressure,
humidity and temperature) is required at the same time one can use a
barometer hytherograph LB-701/LB-702B
or LB-715.
GOOD CLIMATE IS FAVORABLE
