Installation, Operation and Service Manual LKAT
2
+24V
© 2018 DynAmp, LLC Page 9
046404 E
3. SPECIFICATIONS
Table 3.1
LKAT
2
System Specifications ( subject to change without notice )
MAIN ANALOG SIGNAL OUTPUT
Main Output Full-Scale Measuring Range
±5kA to ±150kA ( Contact factory for full-scale
measuring ranges > 100kA )
Signal Output Type (configurable)
mA output max. burden : 10V
mA output max. loop/load resistance : 500Ω
V output min. load resistance : 100kΩ
0mA ±20mA max.
4mA +20 & -12mA
0V ±1V
0.2V -0.6V to +1V
0V ±10V
Signal Output Calibration Accuracy *
Linearity Error * ±0.1% of full-scale
Repeatability Error Limits *
Response Time (t
d
) *
≤ 50 µs
di/dt Accurately Followed *
500 A/µs
Frequency Response * Switch selectable low-pass filter :
No filter / 330hz / 660hz
(refer to Figure 3.1 for additional info.)
Mains Voltage Sensitivity ±0.001%/V
* At DynAmp reference conditions : Ambient 25°C ± 2°C (77°F ± 4°F) / Mains 18 – 36Vdc
MAIN STATUS INDICATORS
Indicates LKAT
2
System proper operation or
operational problem
Accuracy Diagnostics Status LEDs
Green LED indicates proper operation
Red LED indicates operational problem
Accuracy Diagnostics Status Relay Function
Relay coil de-energizes when operational
problem detected or mains power lost.
Over / Reverse Current Trip Setpoint Qty. (1)
Factory/field configurable to trip on either
over current (+5…+100% of full-scale) or
reverse current (-5%...-100% of full-scale).
Over / Reverse Current Status LEDs
Green indicates operation OK – No Trip
Red indicates measured current exceeds Trip
Over / Reverse Current Status Relay
Relay coil de-energizes when measured
current exceeds Trip Setpoint or mains power
lost.
Form C : Normally Open and Normally Closed
Contacts ( non-latching )
All Relay Contact Ratings
120/250 VAC : 4A 30 VDC : 4A
Relay response time 10mS typical
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