Casella NOMAD Portable
Weather Station
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Introduction
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Key
benefits
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Due to increasing environmental legislation world wide,
many industrial activities including construction, demolition and land
remediation now have a requirement to monitor local meteorological
conditions. The NOMAD from
Casella CEL is the first truly portable monitoring station designed for ease
of transportation, rapid deployment and quality of measurement. NOMAD satisfies your professional
monitoring needs. Once on site,
the NOMAD can be deployed and collecting data in less than 5 minutes. Disassembly is just as quick,
allowing you to be packed and on-route to the next monitoring location
immediately. |
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q Portable and lightweight
construction allows for rapid system deployment q Supplied in protective carry bags
for one person to move q High quality anodized aluminum and
stainless components q Quality external connectors q Data-logging technology records
over 149K data sets q CF slot for extended monitoring
applications q Integrated solar panel / charger
allows extended operation q Telemetry options include: RS232,
RS485 or low power radio system q Complete with software for real
time & historical analysis |
Applications
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q Environmental Consultancy q Site boundary monitoring q Landfill & agrochem trial sites q Emergency Services / Military
Services q Geotechnical / Hydrological /
Field Studies q Sports Facilities & Meetings q Ports and Harbors |
The convenient portability of the NOMAD system enables it
to be used to monitor virtually any location and, as standard, measures and
records: temperature, relative humidity, pressure, wind speed and
direction, solar radiation and rainfall. |
Up to 4 additional sensors can be added to the system with
the NOMAD “Sensor extension unit” which attaches directly to the
base of the tripod. These
include sensors for soil temperature, leaf wetness, grass temperature plus other specific devices such
as SOX or NOX. |
Operation
and use
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The NOMAD system comprises 3 components: a lightweight
collapsible tripod assembly, the Sensus data-logger housed in an IP67 enclosure (with solar panel and
rechargeable battery) and a detachable sensor array. Barometric pressure is integrated within the Sensus
data-logger and a tipping bucket rain gauge is sited adjacent to the
system. The system comes
complete with ground anchoring kit and a compass for correct station
orientation. All components come
with custom designed carrying cases for ease of transportation |
Once assembled, the NOMAD automatically begins recording
data based on an internal system logging profile. This profile is created by the operator using the included
Casella “Online Pro” PC software and can be user modified if
required. Data is collected and
held internally ready for retrieval by the operator. If a CF memory card is installed, new
and existing data is automatically transferred to the card. As standard the built-in Sensus
logger will record 149K data sets that equates to over 3 months logging (at 1
minute intervals |
Various options exist for remote communication with the NOMAD
for collection of the logged data.
Most simply, data can be retrieved directly using a laptop PC on site,
or via a direct line connection (maximum cable length 1500 feet). For cable-free or remote operation,
low power radios can be deployed (for transmission up to 3000 feet). For global collection, GSM or PSTN
modems are supported. Alarm
functions may be configured to alert operators using the SMS service on suitably
equipped cellphones. |
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Technical specifications |
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SENSUS Data-logger |
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Internal memory Number of
channels Logging
interval Display Communications |
512Kbytes
(extendible up to 256 Mbytes maximum on CF card) 32 (11
max on NOMAD systems) Adjustable
from 5 seconds 2 line by
20 characters LCD RS232
& RS485 |
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SENSORS |
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Wind
Speed |
Transducer: Resolution: Accuracy: |
Optical
encoder 7.84cm ±0.3
ms-1 below 3 ms-1 ± 1% over 3ms-1 |
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Wind Direction |
Transducer: Resolution: Accuracy: |
GMR 1° ±2° |
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Temperature |
Transducer: Accuracy: |
PRTD ±0.3°C
@ 0°C ±0.55°C @
50°C |
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Humidity |
Transducer: Accuracy: |
Capacitive ±3% |
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Pressure |
Transducer: Resolution: Temp
drift: |
800-1100
Mb silicon bridge <1mb
calibration accuracy typically
<0.15mb/°C |
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Solarimeter |
Transducer: Resolution: |
Silicon
Detector 0.1 Wm-2 |
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Rainfall |
Transducer: Accuracy: |
Tipping Bucket Rain gauge ±1%
@ 1 Liter per hour |
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GENERAL |
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Operating
Temperature |
-15°C
to +70°C (5 to 158°F) |
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Dimensions: |
Deployed
on site: |
Sensors -
6ft above ground Tripod - 3 ft diameter |
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In 3
customized carrying bags: |
Case 1:
37” x 12” Case 2:
14” x 15” x 15” Case 3: 14”
x 14” x 10” |
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Weight: |
28.5 lb
(13Kg) |
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Ordering
information
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Main system187000D 187056D ACCESSORIES187057C -CNC30 -CMC31 TELEMETRY OPTIONS142009C W4/1602/4 -CMC32 -CMC33 OPTIONAL SENSORS120620B 120823B 120680B |
Standard
NOMAD Weather System with 7 sensors NOMAD
Wind System for speed and direction information only Sensor
extension unit Compact
Flash Card (16Mb) Compact
Flash to PCMCIA card Reader for PC Land-line
interface unit (RS485) Cable for
landline unit (specify length, max 1500 feet) Low power
radio modem GSM modem
(call for details) Soil
temperature sensor supplied with 10 ft cable Leaf
wetness sensor supplied with 10 ft cable Grass
temperature sensor supplied with 10 ft cable |
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