Energy Monitoring Leaflet

Energy Monitoring Leaflet
Energy Monitoring
Need to know how energy on your site is used in detail? Eltek
Gen II transmitters and ND sub metering systems provide the
solution.
Benefits
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S P E C I A L I S T
D A T A
Features
Load balancing
PF correction
Optimise energy distribution
Save costs
Efficiency planning
Alarm reporting
Easy to relocate
Fully battery backup
Ethernet
or Serial
connection to
PC
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RX250AL
Receiver
Logger
L O G G E R S
Easy to use customised data loggers
Information recorded
Easy installation
Real time metering
SMS alarms
Up to 34 locations can be
monitored
Environmental data can be included
Powerful analysis software
Incorporate other parameters e.g.
gas usage / heat flow
3 x Current (up to 100A) phases
3 x power factor
!
1 or 3 Voltage phase
Calculated values transmitted or derived
for: kVA, kVAr and kW
Environmental data can include:
Temperature, RH, air quality, air velocity
"and weather information
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Location #34
ND Rail 310/350
Typical range > 500M
Transmitter
GD90
RS485
AC supply
240V nominal
ND Rail 310/350
Transmitter
GD90A
RS485
RP250GD
Repeater
Off-site or on-site PC running Eltek
Software.
Data can be exported to a preferred
spread sheet for customised analysis
and report generation.
GC62 Gas usage
AC
Location #1
Data analysis
Typical application:
Analysis of energy use leading to best usage
of energy
Typical User:
Large sites with power distributed to range of
facilities and services
Guarantee: Equipment manufactured by Eltek is guaranteed against faulty
materials or workmanship for three years. For repairs carried out under
guarantee, no charge is made for labour, materials or return carriage.
Specifications
Common specifications
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Operating frequency: Default 434.225 Mhz (other frequencies
available)
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Standard: ETSI EN300-220-1
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Operating temperature range: -10 to +65 degree C
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Humidity: 90% non condensing
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Range (typical): Built environment: 200 to 500m
No obstructions: >1Km
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RF connection: type SMA
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Environmental rating RX250AL, RP250GD, GD90A & ND Rail
310/350 : Ip40
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Note - a suitably rated secondary enclosure is required for
outdoor use
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System can incorporate any Eltek GenII transmitter type
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(see data sheet TD1079 for transmitters types available)
System Capacity
3 x Current 3 x Current
3 x PF
3 x PF
Note:
1 x Voltage 3 x Voltage
Maximum parameters
per logger
238
234
Total GD90A per logger 34
26
parameters per GD90A 7
9
unallocated channels
10
14
System Components
Central Data logger type RX250AL
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Maximum number of channels : 248
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Standard memory capacity: 250,000 readings
(expandable to 2,000,000)
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Download : On demand or automated e.g every
hour/every day - configurable
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Power supply: AC100/250 (approx 3W)
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Battery standby: 24 hour operation
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Antenna: 7” detachable whip or dipole antenna to
optimise range
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Receiver sensitivity: better than -110dbm
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PC connection: Serial (proprietary protocol)/USB
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Dimensions: 180 x 120 x 60 mm (0.8Kg)
Eltek Software
For use with multiple RX250AL receiver loggers
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Configure system
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Configure logging interval
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Manual or automated data down load to PC
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Real time metering
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Graphing of saved (historic)data
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Export data to preferred spread sheet for customised
analysis
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Formulae to calculate parameters e.g. KVAR, KVH and
KW
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Incorporate environmental data e.g. temp/RH/Co2 etc
Repeater unit type RP250GD
Transmitter: type GD90A
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Number of repeaters in a system: no limit
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3 x current, 3 x voltage and 3 x PF (cosf)
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RF power output: >10mW at antenna socket
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The user can select parameters of interest to be logged
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Receiver sensitivity: better than -110dbm
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RF power output: >10mW at antenna socket
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Power supply: AC100/250 (approx 3W)
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Number of ND Rail 310/350s per transmitter : 1
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Built in battery standby: > 24 hour operation
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Input type: 1 x RS485
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Antenna: 7” detachable whip or dipole antenna to
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Power supply: AC100/250 (approx 2W)
optimise range
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Built in battery standby: > 24 hour operation
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Only authorised transmissions can be repeated
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Continuous scrolling display of all parameters from the
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Signal strength meter with 16 x chevrons
location
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On-air transmitter number display
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Dimensions:135 x 72 x 40mm excluding antenna (0.7kgs)
Note: Other transmitter models are available for
connection to Carlo Gavazzi and IME Rayleigh
ND Rail 310/350 meter
Instruments energy meters.
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Fully isolated
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Actual range : voltage 50% to 120% , current 0.2% to 120%
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Frequency range: 45 to 65Hz ( up to 30th harmonic at 50Hz)
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Burden per phase: voltage or current <0.1VA
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Accuracy (voltage or current): to class 0.1 IEC60688
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Direct mode (not using CT) max current is 5A (operating under installation category II(IEC 61010-1)
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Indirect mode (using appropriately rated CT) up to 1000A
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Dimensions: 106 x 90 x 58mm (DIN rail mounting)
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Features - all values can be viewed via built in LCD and button panel
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Note: The ND Rail 310/350 is powered from one of the voltage connections
Miniature spilt core (clip-on) current transformers
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Range 5A to 1000A type dependant.
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Type SCL16-100: 0-100A for cable dia 16mm max. (captive lead is 1M, can
be extended to >10M)
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Type SCL8-50: 0-50A for cable dia 8mm max. (captive lead is 1M, can be
extended to> 10M)
Specialist Data Loggers
Eltek Ltd, 35 Barton Road, Haslingfield
Cambridge, CB23 1LL, England
Tel: +44 (0) 1223 872111
Fax: +44 (0) 1223 872521
email: sales@eltekdataloggers.co.uk
http://www.eltekdataloggers.co.uk
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