squirrel 651 energy audit data logger · specification specialist data loggers eltek ltd, 35 barton...
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Specification
Specialist Data LoggersEltek Ltd, 35 Barton Road, Haslingfield
Cambridge, CB23 1LL, EnglandTel: +44 (0) 1223 872111 Fax: +44 (0) 1223 872521
email: [email protected]://www.eltekdataloggers.co.uk
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.
AC supply240V nominal
ND Rail 350V or ND Rail 310V
RS485
AC
For 1 x three phase load or 3 x single phase loads
Memory size:" 250,000 readings as standard" 500,000, 1,000,000 or 2,000,000
readings with optional memory upgrade
Logging Interval: Configurable from 60 seconds to 23 hours 59 minutes
Power supply: 100/250VAC power supply type MP12U
Energy meters: ND Rail 350V or ND Rail 310V - pre configured for connection to 651
PC to datalogger connectivity" ’LC68' Logger to PC serial port lead" RS232/USB serial to USB adaptor if serial
port not available on PC" Moxa D5110 ethernet adaptor with AC
power supply for remote ethernet connection to the datalogger" Wavecom GSM modem for remote
modem connection to the datalogger. Product code: GSMSQ
Analysis softwareDarca Plus configuration, download and graphing software. Data can be exported as CSV.
Convenient rising cage connector for three ND meters in radial configuration or daisy chained as illustrated. A maximum of 6 x ND Rail meters can be used with a 651 logger.
CT Currenttransformer
651 Energy audit data logger
Rail 350V (1 x 3 phase load)25 x Parameters that can be logged:3 x Amps (I1, I2 and I3)3 x Volts (Vi, V2 and V3)3 x kW3 x kVA3 x kvar3 x PF1 x kW summed1 x kVA summed1 x kvar summed1 x PF summed1 x kWh 1 x kVAh1 x kvarh
CTs available (accuracy +/-1% (0.1 in – 1.2 in)SCL8/5 = 5A (clip on) Max. cable = 8mm dia Phase error <2.5° at 0.5 in SCL16/50 = 50A Max. cable = 16mm dia Phase error <2.5° at 0.5 in SCL16/100 = 100A Max. cable = 16mm dia Phase error <2° at 0.5 in SCL19/50 = 50A Max. cable = 19mm dia Phase error <2° at 0.5 in SCL19/150 = 150A Max. cable = 19mm dia Phase error <2° at 0.5 in SCL32/400 in = 400A Max. cable = 32mm dia Phase error <2° at 0.5 in SCL51/800 in = 800A Max. cable = 51mm dia Phase error <2° at 0.5 in Insulation: > 300V CATIII
Overall meter accuracy:Meter and 5A CT as above: Better than Class 2 Meter with Class 1 CTsMeter and 50A CT as above: Better than Class 1 Meter with Class 1 CTsMeter and 100A CT as above: Better than Class 1 Meter with Class 1 CTsMeter and 150A CT as above: Better than Class 1 Meter with Class 1 CTsMeter and 400A CT as above: Better than Class 1 Meter with Class 1 CTsMeter and 800A CT as above: Better than Class 1 Meter with Class 1 CTs
Rail 310V (3 x single phase loads) 18 x Parameters that can be logged: 3 x Amps (I1, I2 and I3)3 x Volts (Vi, V2 and V3)3 x PF3 x kW3 x kvar3 x kWh
For detailed Rail 350V or Rail 310V meter and CT details see NDmeter website.
SPECIALIST DATA LOGGERS
The is a specially designed for use Squirrel 651 dataloggerwith the ND Metering Solutions range of retrofit energy meters. Up to 6 x Rail 350V (1 x 3 phase load) or Rail 310V (3 x single phase loads) can be connected, or any combination thereof. The 651 communicates with the meters via RS485. Ultimately up to 150 parameter values can be logged. The system is ideal for temporary or permanent installation.
S quirrel 651 Energy audit data logger