Geotechnical Ziplevel
For years ZIPLEVEL ® PRO - 2000 has been the instrument of choice in geotechnical measurement. For example: ZIPLEVEL GEOTECH has been doing subterranean settlement monitoring of 300' (91.5 M) diameter oil tanks in Louisiana and interstate 5 in Washington State while monitoring horizontal boring in Indiana.
The ZIPLEVEL GEOTECH is a precision pressurised hydrostatic altimeter created directly from the proven ZIPLEVEL ® PRO - 2000 technology.
Unlike the PRO - 2000, the GEOTECH keeps the measurement module electronics fixed within its base unit reel hub while its compact reference cell moves freely as a sensor. The difference in elevation between the sensor and the base unit is displayed directly in digits with all the powerful functions, reliability and ease of use of the PRO - 2000.
Compact Armoured Sensor
GEOTECH is available with cord lengths of 61, 91, and 122 Metres (200, 300 and 400 feet) with approximate settling times of 15, 35 and 50 seconds per reading.
The sensor is armoured in stainless steel complete with stainless steel fasteners for corrosion resistant immersion in water. Stainless loops at either end of the sensor permit pulling by rope or tape rule while the cord itself may be used to pull the sensor with up to 18 KG (40 lbs) of tension.
*Price on application
Sensor Entering
3 inch pipe
In most geotechnical applications the sensor is pulled through a pipe that was installed under a structure prior to fabrication of the structure to do horizontal profiling. Elevation measurements are taken at predetermined intervals beneath the structure immediately after the structure is completed to create a reference data base. Measurements are repeated at later dates thereafter and compared to the original data to assess structural settling.
*Price on application
Horizontal position
In operation, GEOTECH is placed on its back side and its cord is calibrated to the subterrainian temperature of the pipe to be profiled using its calibrated Unipod. The sensor is placed at the site reference and is set to zero by pressing the Zero key or pre-setting the display to sea level elevation or any other reference by using the Elevation Set function. Readings are taken in any desired scale at predetermined intervals and either recorded manually or stored in memory. Stored data can later be manually recalled or dumped to a PC using the optional PC Serial Link.
*Price on application
Specifications
Set-up Vertical Range
12 Metres (6 Metres above & below Base Unit)
Set-up Horizontal Range
244 Metre circle (122 Metre Cord)
Carry Function Ranges
Unlimited
Functions
16 + PC Serial Port
Scales
Metres, inches and feet
Resolution
Reads to 0.1", 1/8", 0.01', 2mm
Typical Isothermal Accuracy
Greater of 2.5 MM (0.1") or 0.15% reading
Reading Settling Time (approx. within one count)
GEOTECH - 200 15s
GEOTECH - 300 35s
GEOTECH - 400 50s
Temperature Range
Storage: -40C to +70C
Operating: -30C to +70C
Drop Resistance
Sensor: 1.5 Metres (5 feet)
Base Unit: 0.6 Metres (2 feet)
Water Resistance
Spray lightly with hose to clean
9V Alkaline Battery Life
80 hours of active use, auto shut-off after 4 minutes of inactivity
Memory
Settings and 137 reading save indefinitely with or without battery
Unipod Length
38 CM (15") collapsed to a calibrated 1.22 Metres (48") extended
Weight
Sensor: 0.34 KG
Total Weight: 10KG (GEOTECH - 400)
Size
Base Unit: 47 CM H x 43 CM W x 21.6 CM D
Sensor: 28 CM L x 7 CM Max. Diameter