DynAmp LKP Series - Specifications

Installation, Operation and Service Manual LKP Series
© 2020 DynAmp, LLC Page 5
041736 N
3. SPECIFICATIONS
Table 3.1
LKP Series 6 & 8 Channel Specifications
MODEL MAX. FULL-SCALE
RANGE*
MEASURING HEAD
WEIGHT
METERING UNIT WEIGHT
LKP-45 45 kA 172 lb. (78 kg) 300 lb. (136 kg)
LKP-60
60 kA
297 lb. (135 kg)
300 lb. (136 kg)
LKP-80 80 kA 396 lb. (180 kg) 330 lb. (150 kg)
Ambient Temperature Range of Measuring
Head
-20°C to 55°C
Ambient Temperature Range of Metering Unit
Location
-20°C to 55°C
Humidity (Measuring Head and Metering Unit) 85% maximum
AC Line Voltage at 50 or 60 Hz ±5Hz**
100,120,200,220,240 Vac +10%, -15%
Burden on ac Line: *** 20 VA/kA
Maximum Allowable Burden of Output Circuit
15 volts
Linearity Error ±0.03% of full scale from 5% to 100% of bus
current.
Repeatability Error Limits ±0.02% of full scale plus zero error. 
Temperature Sensitivity ±0.002%/°C
Line Voltage Sensitivity ±0.001%/V @ 120V ac
±0.0005%/V @ 240V ac
Measuring Head To Bus Isolation 12kVac for 1 minute with 25mm air gap. See
notes below.
Installation Category III
Pollution Degree
2
* Contingent upon DynAmp, LLC computer analysis of bus system.
** The LKP systems are factory-set for the correct voltage and frequency (50 or 60 Hz) per customer
order. To operate an LKP system at a different line frequency than was ordered, move jumper JP1
(located on the control board inside each module) to the desired frequency. Refer to the wiring
diagrams for changing the input voltage.
*** Size any external isolation transformers for 30VA/kA to avoid overheating the transformers due to the
presence of SCR generated harmonics on the input ac line.
 When tested at 120 Vac, less than 1 V burden, 24°C ambient.
 Typical zero primary current errors (bus equiv.) for each model are shown in table 3.2.
 With bus passing through window insulation at 90° to the Measuring Head.