Appendix
Model
Specifica-
tion
Length Description
IT-E32420-OO 240A 2m
A pair of red and black test ca-
bles with round terminals at both
ends
IT-E33620-OO 360A 2m
A pair of red and black test ca-
bles with round terminals at both
ends
For maximum current of AWG copper wire, refer to table below.
AWG 8 10 12 14 16 18 20 22 24 26 28
The
Maxi-
mum
Current
Value (A)
60 40 30 20 13 10 7 5 3.5 2.5 1.7
• AWG (American Wire Gage), it means X wire (marked on the wire). The table
above lists current capacity of single wire at working temperature of 30°C. For
reference only.
• Along with temperature, you must also consider voltage drop when selecting
wire sizes.
Although the instrument will compensate for the voltage in the wires, it is recom-
mended to minimize the voltage drop as much as possible to prevent excessive
power consumption from the instrument and poor dynamic response to load
changes. Larger diameter wire sizes will help minimize wire voltage drops.
Twisting or bundling wires will help reduce transient voltage drops.
A.2 How to avoid it couldn’t start when test battery
When test battery, the main reason of no start is that battery (residual voltage)
discharges capacitors of positive and negitive terminals of the power supply.
Method to avoid no start: connect a switch which is parrallel with a current
limiting discharging resistor. Close the switch after all the all leads connected
well. The wiring diagram as follows:
Copyright © Itech Electronic Co., Ltd.
144
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