Geonics Protem Digital Receiver - Specification

Receiver

PROTEM 58 Digital Receiver

Power

Internal 12V rechargeable battery, 8 hours continuous operation

Size

34 x 38 x 27 cm

Weight

15 kg (incl. battery)

Measured Quantity

Time rate of decay of magnetic flux

Sensor

Three orthogonal component sensor, sequential

Time Channels

20 or 30 geometrically spaced time gates, 6us to 800ms

Repitition Base (50Hz)

0.25, 0.625, 2.5, 6.25, 25, 62.5, 237.5Hz

Repitition Base (60Hz)

0.3, 0.75, 3, 7.5, 30, 75, 285Hz

Synchronization

Reference cable

Integration Time

0.25, 2, 4, 8, 15, 30, 60 and 120 seconds

Calibration

Internal self calibration

Gain

Manual control

Dynamic Range

29 bits (175dB)

Storage

Solid state memory with capacity for over 3000 data sets

Display

240 x 64 dot graphic LCD

Data Transfer

RS232

Operating Temperature

-40 to +50 C

Transmitter

PROTEM 47 Transmitter

Power source

Internal 12V rechargeable battery, 5 hours @ 2A output current

Size

11 x 25 x 32 cm

Weight

5.3 kg

Output Voltage

0 to 9V continuously variable (@ 1A load)

Output Current

3.5A maximum (7A pk-pk)

Current Waveform

Bipolar rectangular current with 50% duty cycle

Repitition Rate (50Hz)

25, 62.5, 237.5Hz

Repitition Rate (60Hz)

30, 75, 285Hz

Turn-off Time

Very fast linear turn-off, 2.5us @ 2A into 40x40 loop

Transmitter Loop

Any dimension from 5x5 to 200x200m. Multiturn loops possible

Receiver Coil

3D High Frequency

Effective Area

31.4 sq.m.

Bandwidth

700kHz