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Tunnel/Subway Monitoring

Construction and demolition in dense urban environments is complex with strict vibration and overpressure limitations, and the potential to impact surrounding structures and services. The growing need to monitor and protect existing subsurface transportation and service tunnels further complicates the situation.

Instantel provides special hardware and software features to simplify the design and installation of semi-permanent tunnel monitoring systems. The Instantel® Auto Call Home™ call-in feature automates modem communications, allowing you to easily configure instrumentation in remote locations or in areas that are difficult to access.

The 6-channel Minimate Pro6™ can be configured with two tri-axial geophones (Instantel DIN or ISEE Triaxial Geophones) on the same monitor, to reduce the cost and complexity of the system. The DIN Geophone supports up to 1 km (3,280 ft.) of cable length, whereas the ISEE Geophone supports up to 75 m (250 ft.)

The Minimate Pro6 offers improved RF and EMI shielding, CE Compliance to Class B, as well as water resistance – all ideal for environments containing conduit and high moisture.

Contact your Instantel Dealer for more information and assistance in selecting the monitoring unit and sensors that best meet your monitoring application requirements.



Recommended Products for Tunnel/Subway Monitoring:

  • Minimate Pro6
  • Minimate Pro4

Minimate Pro6 Highlights

Key Features Ethernet® interface when connected directly to the unit (Auto Call Home is not supported over the Ethernet)
Auto Call Home™ remote monitoring function
Cast aluminum case
Water resistant to IPC67 – submerse to 30 cm (1 ft.) for 24 hours
Compliant to CE Class B - Meets or exceeds RF and EMI requirements
Sensor Check for automatic error checking
View Minimate Pro6 with 2 Geophones

View Minimate Pro6 with Microphone and Geophone
6 Channels Microphone and Triaxial Geophone or two Triaxial Geophones
Available Memory 7,100 plus events
Record Modes Manual, Continuous, Histogram, Instantel Histogram Combo, and VDV - Vibration Dose Value (optional)
Available Sample Rates 512 to 65,536 S/s per channel
Unit Dimensions 254 X 117 X 108 mm (10.0 X 4.6 X 4.25 in)
Unit Weight 2.27 kg (5 lbs)
User Interface 10 domed tactile keys
Product Rank Premium

Minimate Pro4 Highlights

Key Features Ethernet® interface when connected directly to the unit
(Auto Call Home is not supported over the Ethernet)
Auto Call Home™ remote monitoring function
Cast aluminum case
Water resistant to IPC67 – submerse to 30 cm (1 ft.) for 24 hours
Compliant to CE Class B - Meets or exceeds RF and EMI requirements
Sensor Check for automatic error checking
View Minimate Pro4
4 Channels Microphone and Triaxial Geophone
Available Memory 8,000 plus events
Record Modes Manual, Continuous, Histogram, Instantel Histogram Combo, and VDV - Vibration Dose Value (optional)
Available Sample Rates 512 to 65,536 S/s per channel
Unit Dimensions 254 X 117 X 108 mm (10.0 X 4.6 X 4.25 in)
Unit Weight 2.27 kg (5 lbs)
User Interface 10 domed tactile keys
Product Rank Premium

Minimate Plus Highlights

Key Features Most versatile monitor available
Auto Call Home™ remote monitoring function
Wide variety of sensors – microphones, geophones, accelerometers, and hydrophones
View Minimate Plus

View Minimate Plus with Flex
4 Channels Microphone and Triaxial Geophone
8 Channels Two Microphones and two Triaxial Geophones or 8 independent channels
Available Memory 300 events
Record Modes Manual, Single-shot, Continuous, Histogram, and Instantel® Histogram Combo
Available Sample Rates 1,024 S/s to 16,384 S/s per channel, selectable up to 65,536 S/s for 8 channels
Unit Dimensions 81 X 91 X 160 mm (3.2 X 3.6 X 6.3 in)
Unit Weight 1.4kg (3lbs)
User Interface 8 domed tactile keys
Product Rank Mid-range
309 Legget Drive, Ottawa, Ontario, Canada, K2K 3A3