DKM-430
MULTIPLE NETWORK
ANALYSER
EQUIVALENT TO 10 ANALYSERS
30 x CT INPUTS
1MB RECORD MEMORY
HARMONIC ANALYSIS
 INTERNAL GPRS MODEM
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DESCRIPTION
DATAKOM DKM-430 is a precision instrument
allowing the measurement, recording and remote
monitoring of 10 3-phased or 30 single-phased feeders
(or any combination of these two) in AC distribution
panels. The number and flexibility of current inputs
allow the unit to be used in a variety of applications like
power distribution network monitoring, ISO50001
energy efficiency or home and factory automation.
The unit can be mounted on a DIN rail or backpanel. It
can be easily adapted to existing panels.
Current inputs of the unit are designed for 0.1A output
current transformers (CTs). CTs are shipped together
with the unit and can be installed on cables in order to
minimize space occupation in distribution cabinets.
Each CT can be assigned to any phase voltage and
any virtual analyser. Inputs can be moved between
analysers without modifying connections.
Independently adjustable current limits for each phase
provide pre-alarms and help to reduce energy failures.
All measurement values and program parameters may
be displayed on the graphic LCD screen.
The unit logs all fault conditions together with date and
time information. The internal real time clock is capable
of running 10 years without energy.
Any fault or warning signal can be connected to digital
inputs of the unit. Input functions are selected from list.
Any function can be assigned to relay outputs of the
unit. Relays may be remotely operated through the
central monitoring program.
The isolated RS-485 MODBUS RTU data port is
unaffected by ground potential differences and allows
safe transmission of information to monitoring and
automation systems.
The optional internal GPRS modem allows remote
monitoring and control of the distribution panel without
the use of any additional module.
Parameter setting of the unit is made either manually
or through the USB port using the free PC program.
The unit records electrical parameters in its 1MB
internal memory with programmed period. Records are
read through Modbus.
MEASUREMENTS
VOLTAGE INPUTS:
 P-N and P-P voltages: V1-V2-V3-U12-U23-U31
 Harmonics: Voltage inputs, 2-17 harmonics
EACH CT INPUT:
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Phase current: In
Phase active/reactive/apparent powers: Pn-Qn-Sn
Phase power factor: COSn
Current harmonics 2-17
EACH VIRTUAL ANALYSER:
 Total active/reactive/apparent power: ∑P-∑Q-∑S
 Total power factor: ∑cos
 Active and reactive counters: Pn-Qn
FEATURES
Equivalent to 10 3-phase analysers
True RMS measurements
0.5% measurement precision
Internal record memory: 1MB
Internal battery backed-up real time clock
Isolated RS-485 serial port
MODBUS-RTU communication
Internal GPRS modem (optional)
2 programmable relay outputs
2 optically isolated programmable inputs
Active-reactive energy counters
USB port for programming
Free programming software
Graphic LCD, 128x64 pixels
Wide supply range: 85-305VAC / 88-450VDC
DC supply version available
Wide operating temperature range
CONNECTION DIAGRAM
CENTRAL MONITORING
The unit may be remotely monitored and controlled
through the DKG-210 Gateway or optional internal GPRS
modem using the Rainbow Scada web service.
The Rainbow Scada software allows up to 60’000 units
monitored by the same server.
TECHNICAL
SPECIFICATIONS
Supply Input:
85 - 305VAC, 50/60Hz, 88 - 450VDC
Optional 19-150VDC
Measurement Inputs:
Voltage: 7 - 300 V AC (P-N)
14 - 520 V AC (P-P)
Current: 0.001 – 0.12 A AC
Frequency: 30 - 100 Hz
Accuracy:
Voltage:
0.5% + 1 digit
Current:
0.5% + 1 digit
Frequency: 0.5% + 1 digit
Power (kW,kVAr): 1.0% + 2 digit
Cos:
0.5% + 1 digit
Measurement Range:
CT range: 5A to 6500A
VT range: 1.0/1 to 5000.0/1
kW range: 1.0 kW to 5000 MW
Power Consumption:
< 5 VA
Loading:
Voltage Input: < 0.02VA per phase
Current Input: < 0.02VA per phase
Relay Outputs: 5A @ 250V AC
Digital Inputs:
Active level:
85 – 305VAC
Min pulse:
250ms.
Isolation:
1000V AC, 1 minute
Serial Port:
Signal type:
RS-485
Protocol:
Modbus RTU
Data Rate:
2400-115200b adjustable
İsolation:
500V AC, 1 minute
Operating Temp. Range:
-20°C to +70 °C (-4°F to 158°F)
Max Relative Humidity: 95%, non-condensing
Case Material: Flame retardant, ROHS
compliant, high temp. ABS/PC (UL94-V0)
Installation: DIN rail or backpanel
Dimensions: 158x90x60mm (WxHxD)
Weight: 350 gr
AB Directives:
2006/95/EC (LVD)
2004/108/EC (EMC)
Reference Standards:
EN 61010 (safety)
EN 61326 (EMC)
CURRENT
TRANSFORMERS
50 A
25x27x40mm
ɸ 10mm
250A
78x63x22mm
ɸ 25mm
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