Transmitters for accurate electricity usage monitoring using self powered clip-on CTs

GD40A and GD40AB

Need to know how electrical energy is being used? The GenII GD40A/AB transmitter and clip-on self powered CTs can provide the answer. The four GD40A/AB sensor inputs are designed for ND Meter SXD CTs. The transmitter is intended for use in situations where an averaged rather than instantaneous value at the time of transmission is required.

External Power

The GD40A has an external 12VDC input, and is supplied with an MP12U5W 110/220VAC power supply.
The GD40AB has an external 9VDC input, for use with a high capacity 9VDC battery.

System Diagram

GD40A

Sensors

If you require sensors, please order them separately.

Clip-on CTs

SXD5/5 0-5A
SXD10/5 0-10A
SXD20/5 0-20A
SXD30/5 0-30A
SXD50/5 0-50A
SXD100/5 0-100A
SXD200/5 0-200A
CT

Clip-on CT

Accessories

WBG Wall bracket docking kit

This kit enables fitment of the transmitter's built-in wall bracket to difficult or uneven surfaces. The kit provides additional docking security.

The following products are supported:

  • All GD, GC, GL and GS series transmitters
  • RP250GD repeater and RC250 receiver

WBG

Transmitter Specification

Model(s) Sensors Range
GD40A and GD40AB 4 x voltage inputs with averaging for NDMeter SXD self powered CTs
At the point of transmission the averaged value of the last 30 values, sampled every 10 seconds per channel, is sent.
0-6VDC only

Common GenII Transmitter Specification

RF specification: EN300-220
RF power: 10mW
Environment specification  
  Compliant to EN300-220: -10 to +55°C
  Actual: -30 to +65°C
  Humidity: 100% non condensing
Environmental rating: IP40
Dimensions (footprint): 78 x 41mm
Transmission interval range: 1 sec to 4 hours
Indicator (red LED): transmit active/on/off
Control switch (concealed): test mode / hibernate
Antenna socket: SMA

Documentation

Common to all transmitters

Gen II Quick Start Instructions

Specific to this family of transmitters

Datasheet:

Energy Monitoring With CTs

User Instructions:

User Instructions For GD40A