home > products guide > dynamp lkat
dynamp lkat
the lkat plus combines high current measurement and reverse or overcurrent protection into a single rugged system. based on innovative oloptm technology which is designed to accurately and reliably measure uni- and bi-directional dc and ac bus currents up to 100ka. the lkat plus consists of a two-piece measuring head, constructed to match the dimensions of the measured bus, electronics enclosure, mounting hardware and interconnection cables.
application
the lkat plus is particularly well suited to measure power rectifiers outputs for control and protection purposes in electro-chemical processes such aluminum, chlorine, copper, manganese, titanium, zinc, electroplating, etc.
key features
• true bi-directional performance. ideal for difficult magnetic applications.
• setpoint relay can be used for reverse or overcurrent protection of rectifiers.
• extremely compact with excellent environmental specifications for installation flexibility, inside or outside.
• system includes accuracy diagnostics.
• optional digital display can be scaled for dc or rms.
specifications
input : full scale bus current 5ka to 100 ka fs
upon approved dynamp bus analysis
output : output signal range -20ma… 20ma
10v maximum burden
typical output signal scaling bus signal output
dc 0ka = 0ma or 4ma
+fs = 20ma or 20ma
dc w/ reverse or ac - fs = 4ma or -20ma
0ka = 12ma or 0ma
+ fs = 20ma or 20ma
protection relay factory scaled
dc 0 to +fs
dc w/reverse or ac -fs to +fs
rating 250vac / 30vdc, 3a
timing 10ms
measurement accuracy** ±0.75% of fs or better
repeatability ± 0.1% of fs or better
linearity ± 0.1% of fs or better
temperature sensitivity** + 200 ppm / º c
optional digital meter in electronics enclosure
mains
input : universal power supply 85 to 264 vac rms,
@ 47 to 440hz or
110 to 250 vdc
power requirements 30va max.
mains impact on accuracy 120vac: +0.001% fs
(variation per vrms) 240vac: ± 0.0005% fs
isolation ( hi-pot tested at 60hz )
head to output 6.0kvac for 1 minute
mains supply to output 1.0kvac for 1 minute
mains or output to chassis 2.0kvac for 1 minute
environmental
operation : head -20º to 80ºc
electronics :-10º to 50ºc
storage : system -20º to 65ºc
physical
measuring head weight 2…8 lbs/1…4 kg typical
electronics unit weight 10 lbs / 5.5 kg estimate
cables head connection 2 @ 33 ft / 10 m std.
signal output 1 @ 100ft / 30 m std.
mains input 1 @ 33 ft / 10 m std.
enclosure head/electronics ip65