4601 I-V Meter Operation Manual
1.1 Product Overview
1-7
2. Duty ratio limitation at the time of 300 W(sink)/30 W (source) loading
When the 4601 is used with the maximum load power of 300 W (sink)/30 W (source) , there is a duty
ratio limitation by the ambient temperature as shown in Figure 1-4.
The maximum power loading is available continuously at the ambient temperature of 40
C or below;
however the duty ratio is 70% and the loading time is within 5 seconds at 50
C.
That is, pausing for 2.1 seconds is required after continuous loading for 5 seconds.
Pausing for 0.42 second or longer is required after continuous loading for 1 second.
Pausing time tr is obtained by the following formula:
to: Maximum load of 300 W (sink)/30 W (source) application time (5 seconds or less)
Ta: Ambient temperature of 40
C to 50
C
Figure 1-4 Duty Ratio Limitation at Time of 300 W (Sink)/30 W (Source) Loading
