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SMG/interlink®
Serving our customers since 1994
Instruments for Environmental, Health and Safety Professionals,
HVAC Engineers and Technicians, Manufacturing Engineers,
Quality Control and Laboratory Professionals

Casella Nomad Portable Weather Station

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 are automatically transferred to the card. The standard 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

Applications

  • Environmental Consultancy
  • Site boundary monitoring
  • Landfill & agrochem trial sites
  • Emergency Services / Military Services
  • Geotechnical / Hydrological / Field Studies
  • Sports Facilities & Meetings
  • 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.

Key Benefits

  • Portable and lightweight construction allows for rapid
    system deployment
  • Supplied in protective carry bags for one person to move
  • High quality anodized aluminum and stainless components
  • Quality external connectors
  • Data-logging technology records over 149K data sets
  • CF slot for extended monitoring applications
  • Integrated solar panel / charger allows extended operation
  • Telemetry options include: RS232, RS485 or low power
    radio system
  • Complete with software for
    real time & historical analysis

Technical Specifications 
  SENSUS Data-logger  
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
  SENSORS  
Wind Speed Transducer:
Resolution:
Accuracy:		 Optical encoder 7.84cm
± 0.3 ms-1 below 3 ms-1 ± 1%
over 3ms-1
Wind Direction Transducer:
Resolution:
Accuracy:		 GMR
1°
± 2°
Temperature Transducer:
Accuracy:		 PRTD
± 0.3°C @ 0°C ±0.55°C @ 50°C
Humidity Transducer:
Accuracy:		 Capacitive
± 3%
Pressure Transducer:
Resolution:
Temp drift:		 800-1100 Mb silicon bridge
< 1mb calibration accuracy
typically <0.15mb/°C
Solarimeter Transducer:
Resolution:		 Silicon Detector
0.1 Wm-2
Rainfall Transducer:
Accuracy:		 Tipping Bucket Rain gauge
± 1% @ 1 Liter per hour
  GENERAL  
Operating Temperature -15°C to +70°C (5 to 158°F)  
Dimensions: Deployed on site: Sensors - 6ft above ground
Tripod - 3 ft diameter
  In 3 customized carrying bags: Case 1: 37” x 12”
Case 2: 14” x 15” x 15”
Case 3: 14” x 14” x 10”
Weight: 28.5 lb (13Kg)  
Ordering information    
Main system
187000D
187056D

Standard NOMAD Weather System with 7 sensors
NOMAD Wind System for speed and direction information only
ACCESSORIES
187057C
-CNC30
-CMC31
Sensor extension unit
Compact Flash Card (16Mb)
Compact Flash to PCMCIA card Reader for PC
TELEMETRY OPTIONS
142009C
W4/1602/4
-CMC32
-CMC33
Land-line interface unit (RS485)
Cable for landline unit (specify length, max 1500 feet)
Low power radio modem
GSM modem (call for details)
OPTIONAL SENSORS
120620B
120823B
120680B
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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Interlink Marketing Corporation
dba SMG/interlink®
PO Box 260795
Plano, Texas 75026
Toll free 1-800-804-6196
Ph: 972-985-0883
Fx: 972-985-3252
2203 Glen Forest Ln
Plano, Texas 75023

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