L300-VA Voltage / Current Data Logger

with 8 channel 10A Relay Alarm / on-off output


An 8-channel self calibrating data logger with up to 0.01 resolution.
8 x 10A/250V relay o/p's
USB PC interface + software.

The 2 wire voltage / current input with alarm / on-off control can be used in conjunction with a PC to provide accurate, versatile 8 channel measurement, scanning and logging of measured values with the added 8-zone control. It can also be used as a "stand alone" indicator / logger and incorporates a digital display of measured temperature.

Self calibration of input ranges is simple and uses plug-in precision resistors.

The unit is designed to provide exceptional stability with high measurement resolution and represents an ideal crossover between plant practicality and laboratory performance at a very competitive price.

The PC software supplied with the instrument allows control, configuration, measurement, logging charting, alarm and relay configuration and calibration functions.

  • Low Cost - high performance
  • USB PC Interface
  • 8 x 2 wire inputs
  • Built-in display for selected channel or all channels auto-scrolling
  • Resolution 0.1 on display, 0.01 in software
  • Self-calibrating feature
  • PC software included for remote control and measure, logging and calibration
  • 8 x configurable change-over relays rated 10A/250V
  • Simple operation
  • CE marked
  • RoHS compliant
  • 2 year warranty


  • Linearisation       +/-0.05
  • Input range        better than +/-0.05 +/-0.1% of range

Zero Drift                         +/-0.01% of span

Span Drift                        +/-0.01% of span

Display                            LCD, backlight

Display resolution           0.01

User Interface                 Front panel keys for channel No. or auto-scan selection, relay configuration and alarm parameters.

                                        8 x LED indicators for relay actuation. PC software for all other functions.

Indication                        Channel No., measure input

Sensor open circuit         Upscale indication

detection & indication

Ambient operating          0 to 50 Deg C


Storage temperature      -20 Deg C to 70 Deg C

Input terminals               8 x Pt100 terminal blocks

PC interface                   USB

Power supply                 6Vdc (5.5-9.0V) via universal mains adaptor (supplied) 120-250Vac 50/60Hz

Logging interval             5 seconds to 1 hour

On-board memory         512 sets of readings

PC software                  Supplied as standard on CD-ROM.

                                      Remote control & measure:-

                                      Log readings to file

                                      Download to PC

                                      Logging, charting, alarm configuration and calibration

Dimensions                   214mm width x 143mm depth x 78mm high

Alarm / Control

Alarm modes                High, low, band, control

Relay contacts             x 3, normally open, common, normally closed

                                    (The normally open position is when the relay is de-energised. Rated to 10A/250V resistive load.)

                                    Relays 1 to 8 can be assigned to any input and polarity (normal or reverse) selected

All units are supplied with an L300, power supply adaptor, USB lead, PC software and instruction manual (on CD)