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ISODAQ Data Logger for Water & Environment Monitoring

The FROG RX GSM/GPRS telemetry logger is the latest addition to our existing range of robust data logging and telemetry solutions manufactured by Isodaq Technology, a division of Hydro-logic Ltd.

All Isodaq products are designed for water and environmental monitoring applications where systems are operated at remote sites often under hostile environmental conditions. FROG RX shares the same proven hardware and software platform with all other Isodaq devices e.g. Hawk and Hawkeye.

Ideal for hydrometric sites

FROG RX is an rugged IP68 field telemetry device with a difference - designed for hydrometrists by hydrometrists for rapid deployment at minimum cost. The device can be easily installed inside 100mm tubes, strapped onto poles/piezometers or fitted inside ground-level meter-boxes with no other secondary enclosure required. FROG RX is ideal as a low cost outstation for generating alarms for heavy rainfall, river/urban flooding, borehole level or water quality/pollution alerts.

Remote monitoring and alarm applications

• River & tidal level/quality

• Reservoir & lake level/quality

• Borehole level & quality

• Open channel flow

• Water supply pressure/ flow

• Flood warning

• Rainfall intensity alarms

• Barometric pressure

• Wind speed

• Mini-weather station (SDI12)

• Water quality probes (SDI12)

• Pollution warning

Key features

• Ultra-low power battery operated for remote, harsh environ  ments.  

• Hydrometric sensors include tipping-bucket raingauge, miniweather station and depth level pressure sensors.

• Sealed to IP68 to withstand temporary submersion.

• Single-input connection for up-to 8 channel logging.

• Internal breather-bag allows venting for pressure sensors.

• Internal field replaceable battery packs, plus external 12 V  battery option.

Accuracy and storage

• Secure data storage in flash memory eliminates data loss if battery fails.

• Storage capacity 29760 16 bit readings; oldest data is overwritten when full

• 16-bit resolution and accuracy available with selected high quality sensors.

Software options

• Harvest Windows - licence-free for configuration and onsite data collection using portable or tablet PC.

• Pocket Harvest - for Windows Mobile PDAs including ruggedised Juniper Archer PDA.

• IDQTel Windows software - autopolling scheduled data collection and alarm forwarding for small networks.

• Timeview Virtual Appliance Server - autopolling scheduled data collection and alarm forwarding for large networks.

• Timeview.net secure web-site data hosting, graphics display and file download application, with automatic data collection/alarm forwarding option via GPRS with annual subscription.

FROG's battery power options make it the ideal choice for both low and high-priority applications e.g flood warning. Battery options include an internally fitted Alkaline or Lithium battery pack, both field replaceable, plus a link to an external 12 V leadacid battery.

Min. 5 year life with ultra-low battery power management techniques to extend battery life for many applications using Isodaq's 'check-in' data collection mode, particularly effective when combined with low-cost GPRS 'always-on' protocols. 

Unlimited life with external rechargeable 12V lead-acid battery fitted to a solar or wind trickle-charging system.

Logging strategies

• Strategies - Periodic, frequency pulse count, event.

• Log intervals - User-specified from 10 secs to12 hrs. Data is stored at ‘cardinal points’ as per specified interval (e.g. 15 minutes logging at 00:00, 00:15, 00:30, 00:45 etc).

Communications

• Internal GSM/GPRS modem (800/900/1800/1900 Mhz)

• Antennae options - internal or socket for external ant.

• Local serial port connector for PCs or PDAs

• End-to-end dial-out button to test comms before/after install lation with GSM signal test kit available for surveys

• DNP3 open-protocol for integration with existing SCADA telemetry servers used by utilities.

• Device profile documentation available for DNP3; potential for OPC Server integration

• Alarm functionality suitable for flood and pollution warningup to 4 no. set-points per channel, hysteresis function; storm rainfall intensity alarms.

• Low-cost GPRS SIM option for automatic data collection using Timeview Telemetry data hosting web-site.

Enclosure options

• Easy riverside installation option within GRP 100mm sq. box-section stillingtube enclosure.

• Combine box section stilling-tube with gaugeboard via self-adhesive label.

• Space for water-level dipping in 100mm tube without removal.

• Fits inside 100mm borehole tube.

• Strap to 50mm piezometer tube.

• Fix to wall or enclosure back-plate.

• Fit inside ground-level meter-box.

Multi-purpose data logger

The Tadpole GSM/GPRS data logger is the latest addition to
our exisiting range of robust telemetry solutions manufactured
by Isodaq Technology, a division of Hydro-Logic Ltd. All our
products are desgined for water and environmental monitoring
applications where systems are operated at remote sites often
in hostile environments. Tadpole is an environmentally sealed
battery-powered logger which stores values in memory and
transmits data at intervals or on alarm activation via GPRS to
a telemetry server. Battery options include alkaline and lithium
packs providing upto 7yrs life (strong signal; daily data transfers).
Typical real-time monitoring applications include:-
• Rainfall intensity monitoring with alarms
• Wind profiling or weather monitoring
• Water level in rivers, lakes and boreholes
• Water quality monitoring
• Flood and pollution warning

Rapid deployment at remote sites

Tadpole connects to a wide range of single input digital or analogue
sensors or multi-parameter SDI-12 sensors – the ideal
multi-purpose device for hydrometric applications. Tadpole also
offers savings for ease of deployment at low cost inside raingauges,
small enclosures or slotting inside 50mm piezometers.
Model D (IP65) for enclosures or recording rain-gauges
• Designed in collaboration with Casella Measurements
• Seperate telemetry logger unit with external battery options
• Choice of GSM/GPRS antennae fits inside/outside enclosure
Model S (IP68) for 50mm piezometers or riverside tubes
• Hangs inside 50mm tube and sits on metal cable hanger
• Interchangeable 64Ahr battery pack with IP68 connector
• Range of breather and lockable well cap accessories

Status, event/frequency, 4-20mA or SDI-12 options

• Ultra-low powered data logger with on-board GSM/GPRS modem ideal for remote site data capture

• Digital or Analogue inputs plus SDI-12 Multi-parameter sensors supported

• Choice of IP65 or IP68 environmentally sealed models for different applications

• Single-input connection for up-to 8 channel logging

• Rapid deployment for fitting inside 50mm piezometer tubes or inside many tipping-bucket rain-gauges

• Field replaceable battery packs with range of alkaline,lithium packs plus external 12V lead-acid option 

• End-to-end dial-out button to test comms during installation; GSM signal survey kit also available 

• SIM card accessible via removable cap 

• Alarm functions with upto 4 set-points per channel including storm intensity; hysteresis function

Options for logger control and automatic data capture:-

• Harvest Windows - licence-free for configuration and onsite data collection using portable or tablet PC

• Pocket Harvest - for Windows Mobile PDAs including ruggedised Juniper Archer PDA

• IDQTel Windows software - auto-polling scheduled data collection and alarm forwarding for small networks

• Timeview Telemetry Virtual Appliance Server – auto-polling scheduled data collection and alarm forwarding for large networks

• Timeview Telemetry Web-service - secure web-site data hosting, graphics display and file download application, with automatic data collection/alarm forwarding option via GPRS ; annual subs, service or licenced software

Detailed technical specification

Digital Input

• 2s event timing resolution

• 65000 event count

• 650Hz max frequency

• On/off status

• 10K internal pull-up resistor

Analogue Input

• 4-20mA current loop and loop powered

• Resolution - 16bit A-D converter

• Accuracy - 0.1%

SDI-12 Input

• 8 Channels

• Up to 8 sensor addresses

Storage Capacity

• 29768 16-bit readings

• Up to 8 channels, logged or derived

Logging Intervals & Strategies

• Cardinal point interval 10s, 30s, 1m, 2m, 5m, 15m, 30m 1h, 2h, 3h, 4h, 6h, 8h, 12h.

• Event times (e.g time of tip)

• Frequency pulse count per interval NB—All channels set independently.

Battery options

• Lithium: 16Ah, 1xD cell in holder OR 64Ahr, 4xD cell sealed pack OR 64Ahr, 4xD cell wrapped pack

• Alkaline: 16Ah, 4 x D cell wrapped pack

• 6v or 12V external lead-acid battery

Power Output

• Switched 12V

• 120mA output current

• Configurable sensor warm-up

Communications

• Local RS232 to PC serial or USB

• Internal GSM/GPRS modem (800/900/1800/1900Mhz)

• SIM card accessible via removable cap

• External socket with choice of antenna

• GPRS fixed address option

• Modbus ASCII protocols OR DNP3

protocols for SCADA integration

• Enclosure & environment

• Encapsulated board with moulded plastic end caps all sealed to IP68

• Model S IP68 standard

• Model D IP65 standard

• Operating limits—- 40 to +70 deg. C 0-100% relative humidity

• Model S— 4-pin Hirschmann socket with

input plug supplied

• Model D— 6 x 4.8x0.8mm spade connectors (2 are for battery, 4 are for sensor connections)

Dimensions

• Diameter - 48mm

• Length Model D - 160mm excluding fitted antenna

• Lenght Model S - 215mm excluding fitted antenna