Electronic Fishing Machine EFM300
Electric Fishing
The EFM300 Electric Fishing Machine provides researchers and environmental managers with a simple and efficient tool for monitoring fish populations in their waterways. Developed in consultation with users, the EFM300 incorporates modern technology to produce a safe, robust, reliable, easy-to-use backpack machine for live fish capture.
Features
- Complies with international safety standard IEC335-2 (draft)
- Light weight
- Ergonomically designed packframe and electrode assembly
- 600 volt output capability
- Suitable for continuous use
- High converter efficiency and therefore longer battery life
- Operator-variable pulse width and frequency
- East-to-read indicators
- Multiple safety circuits
EFM300 Overview
The EFM300 consists of a battery-powered backpack generator unit and a fibreglass wand to which different fishing electrodes are easily fitted. The backpack assembly consists of IP67 rated battery and control enclosures mounted on a light-weight, comfortable, aluminium packframe. The handheld wand comprises a fibreglass pole with a handgrip which incorporates the high voltage on/off switch and visual indication of output current. The wand is light-weight and balanced to minimise operator strain.
The EFM300 has been designed with the user in mind and features state-of-the-art circuitry to ensure high battery efficiency and user safety. Controls include output voltage, frequency, and pulse width. These ensure maximum flexibility over a wide range of water conditions and minimise the possibility of damage to fish. The EFM300 includes four separate safety circuits to maximise user safety, and meets the requirements of IEC335-2 (draft) regulations.
Specifications
| Dimensions | Backpack – 500 mm H x 300 mm W x 220 mm D Enclosure – high impact polycarbonate, IP67 rated Wand – tapered spun fibreglass, 1.8 m long Weight – 15 kg (including batteries) |
|---|---|
| Input power | 24 volt DC at 15 A (nominal) |
| Power source | 2 x 12 volt, 6.5 or 8.2 Ah sealed batteries. Fused (15A) |
| Output power | 300 watts (nominal) |
| Output voltage | 100–600 V (pulsed DC selectable in 100 V steps) |
| Duty rating | continuous |
| Frequency | 10–250 Hz |
| Protection | output disabled on overload |
| Conductivity range | 10–400 microS/cm |
| Visual indicators | fishing minutes elapsed, peak output voltage, average electrode current, electrode live, safety switch operated, tilt switch operated, battery low |
| Audible indicators | electrode live |
| External controls | safety isolation switch, electrode live switch, peak output voltage, safety latch reset switch, elapsed minutes reset switch |
| Internal controls | output pulse width, output pulse frequency, audible indicator volume |
| Safety devices | water conductivity switch, tilt switch, isolation switch, anode electrode "deadman's switch" |
| Electrode sizes | standard: 450 mm dia. small: 200 mm dia. |
| Warranty | warranted for 12 months |
For further information, contact
NIWA Instrument Systems
Tel: +64 3 343 7890, fax: +64 3 343 7891
instruments@niwa.co.nz