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Table T20. Sensor specifications for dummy run test.

Self-recording accelerometer-tiltmeter
Accelerometer Kyowa EI AS-100TA Max. ± 100 G 0.084 m/s2/digit
Tiltmeter Applied Geomechanics model 900 ± 25° 0.002376°/digit
Sampling 16 bit at selectable from 100, 200, 500 Hz
Recording 2 GB CF memory card 2 byte sample
Batteries Four Electrochem BCX85 3B76 lithium batteries (3.6 V, 30 AH each)
Power 210 mA at 8 V supply when recording, 80 mA when standby
Housing SUS316 stainless steel
Dimensions 600 mm length, 135 mm diameter
Weight 46 kg in air, 31 kg in water
Borehole strainmeter
Strain Three sets of transducers to measure strain in 0°, 120°, 240°; 2 V/mm sensitivity; one volumetric strain measurement
Temperature Inside strain sensor and telemetry sections
Sampling Simultaneously 32 bit 6 channels at 250 Hz; volumetric strain ~40 samples/s
Recording 8 GB SD memory card ~2 byte sample with data compression
Power 118 mA at 24 V supply on recording
Batteries Lithium batteries 3.6 V × 12 to maintain observation for 2 weeks
Dimensions Cylindrical maximum outer diameter 194 mm, length 4000 mm
Weight 376 kg
Interface Top: flange; bottom: 3-1/2 inch EUE pin; connector (Seacon MINK-10-FCR) on top of telemetry section
Borehole seismometers
CMG1T
Recording None
Housing Titanium cylinder, Seacon MINK-10-FCR on top
Dimensions 127 mm diameter, 1300 mm height
Weight ~50 kg
CMG3T
Recording None
Housing Titanium cylinder, Seacon MINK-10-FCR on top
Dimensions 126 mm diameter, 1503 mm height
Weight ~50 kg
Instrument carrier
Purpose To hold accelerometer and seismometers, suspend strainmeter and tubings, and serving fluid/cement path down
Dimensions 8439.2 mm length, effective diameter 8 inches
Weight 486 kg

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