Digital panel meter, message display, production line monitor and large display manufacturer
Multi channel display, with data logging and network connection Eighth DIN digital panel meters for measuring and controlling most physical variables Custom made message displays for production line monitoring Combined temperature and humidity displays for industrial environmental monitoring Industrial clocks with automatic summer and winter correction, synchronisation to atomic standards Loop powered Eighth DIN digital panel meters Analogue AC and DC panel meters Miniature programmable digital panel meters for AC and DC measurements Fully sealed industrial large digit displays Custom made large displays, in this case an outdoor temperature display for a holiday resort Custom made event count down displays Customised large bargraphs built to suit your specifications Multi-colour panel mounting programmable bargraphs 1/8 DIN bargraph Large format sealed bargraph Multi-colour miniature panel mounting programmable bargraphs Custom made and standard message displays for production line monitoring Custom made and standard message displays for production line monitoring Custom made and standard message displays for production line monitoring Custom made and standard message displays for production line monitoring Triple 4-20mA loop splitter Portable carrying case for laboratory or general test use. 1 to 12 panel meter capacity Network enabled power monitor and data logger Generator synchro display and controller IP67 splash proof cover for Eighth DIN panel meters
Thorncote Road, Near Sandy, Bedfordshire SG19 1PU Tel Fax +44(0)1767 626444 sales@london-electronics.com QA Cert. ISO9001:2008
 
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Single and 3 phase power monitoring

Model ND10 ::: 3 phase power meter

The ND10 is a low cost, high performance 3 phase power meter, with optional RS485 modbus output.

ND10 3 phase power meter


Model ND20 ::: 3 phase power meter

The ND20 is an economical, high performance 3 phase power meter, with pulse ouput, alarm relay, RS485 modbus and optional 4-20mA analogue output.

ND20 3 phase power meter
ND20 Manual
ND20 Datasheet


Model ND1 ::: 3-phase power monitor and data logger

The ND1 is a modern, compact and easy to use panel mounting power monitor. It uses a familiar Windows interface, with touch-screen simplicity. An in-built web server allows you to include the monitor on a network for remote access.

ND1 3 phase network power monitor and data logger

Measurement capabilities:-

  • Phase voltages: U1, U2, U3 and phase currents: I1, I2, I3
  • Phase-to-phase voltages: U12, U23, U31
  • Active phase powers: P1, P2, P3
  • Reactive phase powers: Q1, Q2, Q3
  • Apparent phase powers: S1, S2, S3
  • Active power factors: PF1, PF2, PF3
  • Reactive/active power factors: tgj1, tgj2, tgj3
  • Mean phase-to-phase voltage: US Umf
  • Current in neutral wire and mean 3-phase current: IO, IS
  • Active, reactive and apparent 3-phase power: P, Q, S
  • Mean 3-phase power factors: PF, tgj
  • Frequency f and frequency deviation
  • 15 minutesí mean active power: PAV
  • Active, reactive and apparent 3-phase energy: EnP, EnQ, EnS
  • THD for voltage and phase current,
  • Current and phase voltage harmonics (up to 51st)
  • Storage of min and max values
  • Recording of dips and voltage decays to EN50160

Download simulated setup software

ND1 - Specifications
Format144mm x 144mm IP65 sealed panel
Input connectionsDetachable screw terminals on the rear.
CommunicationsEthernet 10 Base-T
Modbus TCP/IP
USB 1.1 Device
RS-485 Modbus Slave.
Current Inputs0-1A or 0-5A via CT
Voltage inputs3 or 4 wire, up to 415V
Max. Overload5 Seconds: < 1000V, <10A
Analogue Outputs4 x 4-20mA programmable
Relay outputs6 x programmable alarm relays rated 1A 250V AC
Supply voltage85-253 V AC < 30VA
Front sealingIP65

ND1 Datasheet

3 Wire connection
3 wire 3 phase power meter connection

4 Wire connection
4 wire 3 phase power meter connection


Generator Synchroscope

KS32 Synchronising unit The KS32 synchronising unit comprises of a 360 degree synchroscope and differential voltmeter in a 96 x 96mm panel mounting unit.

Horizontal bargraphs show Frequency and Voltage mismatch. A relay output activates when the generator is within the acceptable band of matching for phase, frequency and voltage.

generator synchronising unit

KS32 Datasheet
KS32 Manual

Economy 3 phase power monitors

Two panel mounting instruments for monitoring power in single and 3 phase power installations.


single and 3 phase power monitor

N14N10

96x96 mm

144x144 mm

3 digits

4 digits

RMS V & I
VA, VAr
P.F.
Frequ.
Avg. Pwr

THD analyser
RMS V & I
VA, VAr
P.F.
Frequ.
Avg. Pwr

Outputs

Alarm Relay
RS485
5000 pulses/kWh

Outputs
3 Alarm Relays
RS485
-20..+20mA
kWh pulse

85...250VAC power

85...250VAC power


The N14 is the basic 3 digit model, ideal for general monitoring on 3 and 4 wire, balanced and unbalanced power circuits.

The alarm relay can be assigned to any measurement variable. Crest factor max. 2

The N10 offers the greatest flexibility. It allows you to have up to 20 pages of display combinations.

In addition, it computes the total Harmonic distortion of the current and voltages, up to the 25th harmonic. Ideal for monitoring variable speed drive performance and any other source of generated power, where waveform purity may vary.




Detailed comparison guide




N10 Manual
N10 Datasheet

N14 Manual
N14 Datasheet


N30P Manual
N30P Datasheet



P12P Economy single phase power monitors

p12p single phase power monitor



p12p single phase power monitor

Datasheet
Manual
Model number and pricing tool


3 phase power transducer P43

A versatile 3 phase power transducer, having data, alarm and analogue output capabilities.

DIN Rail mounting.

3 phase power transducer

Datasheet
Manual

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London Electronics Ltd, Thorncote Road, Near Sandy, SG19 1PU, England