Instantel Micromate 721A2401 Instruction Sheet

Instruction Sheet
The Triaxial Borehole Geophone is designed to be
lowered into a borehole to measure vertical, transverse and
longitudinal ground vibrations.
Each Triaxial Borehole Geophone is coupled with a Micromate
Base Unit and calibrated to the same industry standard as the
Micromate Base Unit, namely:
• International Society of Explosives Engineers (ISEE-2017)
• Deutsches Institut für Normung (DIN 45669-1)
• Swedish Blasting (SS4604866)
• Swedish Pile Driving (SS025211)
Tools and Materials Required
• Micromate ISEE Base Unit . . . . . . . . . . . . . . . . . . . . . .(P/N: 721A2501) or
• Micromate DIN Base Unit . . . . . . . . . . . . . . . . . . . . . .(P/N: 721A2601) or
• Micromate Swedish Blasting Base Unit . . . . . . . . . . .(P/N: 721A3601) or
• Micromate Swedish Pile Driving Base Unit . . . . . . . .(P/N: 721A3801)
• 30 m (100 ft) Triaxial Borehole Geophone . . . . . . . . . . . . .(P/N: 721A2401) or
• 75 m (250 ft) Triaxial Borehole Geophone . . . . . . . . . . . . .(P/N: 721A2402)
• Extension cables, as required
10 m (33 ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (P/N: 721A0803)
30 m (100 ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(P/N: 721A0801)
75 m (250 ft) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(P/N: 721A0802)
Custom Extension Cable Kit. . . . . . . . . . . . . . . . . (P/N: 721A3201)
• Steel cable to position the geophone into the borehole (third party)
Specifications
ISEE
BOREHOLE
GEOPHONE
721A2401
PART NUMBER
Coupled to the
ISEE base unit
RESPONSE
ISEE - 2017
STANDARD
FREQUENCY
2 - 250 Hz
RANGE
VELOCITY Up to 254 mm/s
RANGE (10 in/s)
0.00788 mm/s
RESOLUTION
(0.00031 in/s)
SENSOR 1.73 g/cc
DENSITY (108 lbs/ft
30 m
CABLE LENGTH
(100 ft)
MAXIMUM CABLE 1,000 m
LENGTH (3,250 ft)
REQUIRED
THOR
SOFTWARE Compliance
Triaxial Borehole Geophone
DIN
BOREHOLE
GEOPHONE
721A2402 721A2401 721A2402
Coupled to the Coupled to the Coupled to the
ISEE base unit DIN base unit DIN base unit
DIN 45669-1
CLASS 1
1 - 315 Hz
Up to 254 mm/s
(10 in/s)
0.00788 mm/s
(0.00031 in/s)
1.73 g/cc
) (108 lbs/ft )
3 3
75 m 30 m 75 m
(250 ft) (100 ft) (250 ft)
1,000 m
(3,250 ft)
THOR
Compliance
S W B
B O R E H O L E
G E O P H O N E
721A2401 721A2402 721A2401
Coupled to the Coupled to the Coupled to the
SWB base unit SWB base unit SWP base unit
SS4604866
2011 (SWB)
5 - 300 Hz
Up to 254 mm/s
(10 in/s)
0.00788 mm/s
(0.00031 in/s)
1.73 g/cc
(108 lbs/ft )
3
30 m 75 m 30 m
(100 ft) (250 ft) (100 ft)
1,000 m
(3,250 ft)
THOR
Compliance
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S W P
B O R E H O L E
G E O P H O N E
721A2402
Coupled to the
SWP base unit
SS025211
(SWP)
2 - 150 Hz
Up to 254 mm/s
(10 in/s)
0.000788 mm/s
(0.000031 in/s)
1.73 g/cc
(108 lbs/ft )
3
75 m
(250 ft)
1,000 m
(3,250 ft)
THOR
Compliance
Instantel 1