ELREC T

Versatile IP or Resistivity System

Features

Transmitter/Receiver Mode
Receiver Only Mode
Two Dipole IP Receiver
1600 V Peak to Peak

General

The Elrec T is truly a crossover instrument, bridging the capabilities of both a resistivity meter and an IP receiver. As a resistivity meter it offers all of the functions and capabilities as described for the Syscal R2. As an IP receiver it offers the functions and specifications of the R2, as well, but as a two dipole receiver.

As a resistivity meter, functioning in the transmitter/receiver mode, the Elrec T may be powered with either a 125, 250, or 1200 Watt converter. For a complete description of these capabilities please refer to the Syscal R2 specifications. The Elrec T offers the same receiver specifications for resolution, stacking, and memory operation. It is also compatible with the Intelligent Node automated switching system.

For deeper investigations the Elrec T may be used as a conventional IP receiver, offering two dipoles. In the receiver only mode it may be used with any time domain transmitter such as the VIP 3000, VIP 4000, or VIP 10000. In this mode the Elrec T offers the same specifications as the Elrec 2. Synchronization is automatic with a 10 ms sampling rate.

Specifications

Maximum Output Voltage: 800V (1600 V peak-to-peak)
Maximum Output Current: 2.4A
Output Current Specifications:
Resolution: 10µA Accuracy: standard 0.3% (max 1% from -20°C to +70°C)
Output Current Waveform:
Frequency domain: ON+, ON- for resistivity Time domain: ON+, OFF, ON-, OFF for resistivity and chargeability
Pulse Duration: (ON time) programmable from 0.25 to 10s, with preset values of 0.5s, 1s and 2s
Overheating Protecting: Thermal circuit breaker
DC Power Source
The external DC source for ground energization can be:
- 125W DC/DC converter (400V, 4kg) with battery
- 250W DC/DC converter (800V, 5kg) with battery
- 1200W AC/DC converter (800V, 25 kg) with 220V (or 110V) motor generator

Receiver

Input Impedance: 10Mohms
Input over voltage Protection
Input Voltage Range: -5V to +5V
Automatic SP Bucking: -5V to +5V with linear drift correction (up to 1 mV/s)
Power Line Rejection: 50 Hz and 60Hz
Ground Resistance Measurement: from 0.1 to 1,000 Kohms

Voltage Measurement:

Resolution: 1µV after stacking Accuracy: standard 0.3% (max 1% from -20°C to +70°C)

Chargeability Measurement:

Resolution: 0.1 mV/V Accuracy: 1% of displayed value for a voltage greater than 10mV

Stacking: Continuous digital stacking up to 250 stacks

Two Dipole Receiver Mode

Requires a Time Domain waveform transmitter with 0.5, 1 or 2s pulse duration
Automatic synchronization with 10ms sampling rate
Common mode rejection between channels 86dB (for RS=0)

Standard Components

The ELREC T console, data transfer cable, instruction manual and shipping case.

Ordering Information

Description		Order Number
ELREC T		500-190-0025
250W Converter		500-190-0009

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