Installation, Operation and Service Manual
LKP Series
© 2016 DynAmp, LLC
Page 7
041749 K
4. SPECIFICATIONS
TABLE 4.1
LKP SERIES 16 CHANNEL SPECIFICATIONS
MODEL
MAX. FULL-
SCALE RANGE*
MEASURING HEAD
WEIGHT
METERING UNIT WEIGHT
(Maximum)
LKP-180
180 kA
Approx. 1488 lb. (675 kg)
Approx. 650 lb. (295 kg)
LKP-300
300 kA
Approx. 2468 lb. (1120 kg)
Approx. 800 lb. (363 kg)
LKP-400
400 kA
Approx. 3968 lb. (1800 kg)
Approx. 800 lb. (363 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 (head and Metering Unit)
85% maximum (non condensing)
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 4.2.
With bus passing through window insulation at 90° to the head.
