Installation, Operation and Service Manual
LKAT Plus EMC
© 2018 DynAmp, LLC
Page 7
047331 A
3. SPECIFICATIONS
Table 3.1
LKAT Plus System Specifications (Subject to change without notice)
ANALOG SIGNAL OUTPUT – MAIN & PROTECTION EXTENSIONS
Full-Scale Measuring Range (Main Output)
±5kA to ±100kA
Contact factory for Full-scale measuring
range >100kA
Full-Scale Protection Range (PE Output)
±5kA to ±200kA
Signal Output Calibration Accuracy
±0.75% full-scale
Signal Output Type (configurable)
±20mA, ±1 Volt, or ±10V Full-Scale
Signal Output Maximum Burden
10 volts
Maximum Load Resistance (Current Loop Output)
500Ω
Minimum Load Resistance (Voltage Output)
100kΩ
Linearity Error
±0.1% of full-scale
Repeatability Error Limits
±0.1% of full-scale
Temperature Sensitivity (Note 1.)
±0.02%/°C
Response Time (t
d
)
≤
50
µ
s
di/dt Accurately Followed
500 A/
µ
s
Frequency Response
Switch selectable low-pass filter :
No filter / 330hz / 660hz
(refer to Figure 3.1 for additional info.)
Line Voltage Sensitivity
±0.001%/V
STATUS INDICATORS – MAIN PC BOARD ASSEMBLY
Accuracy Diagnostics Status Relay
(Normally Open & Normally Closed Contacts)
Indicates proper operation or operational
problem
Accuracy Diagnostics Status LEDs
Green LED indicates proper operation
Red LED indicates operational problem
Overcurrent / Reverse Current Trip Setpoint -Qty.
(1) - Field configurable
Continuously variable from 5% to 100% of
full-scale.
Overcurrent / Reverse Current Status Relay
(Form C contacts Normally Open & Normally
Closed)
Relay coil de-energizes when measured
current exceeds Trip Setpoint
Relay Contact
Rating
7 Amps – 120/250 Vac
7 Amps – 30 Vdc
Overcurrent / Reverse Current Status LEDs
Green LED indicates operation OK – No
Trip
Red LED indicates measured current
exceeds Trip Setpoint
