Quote:
Originally Posted by adamj12b
The LEM Hass 300-s goes all the way up to 900A. 300A is just the nominal current.
-Adam
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Yes, from the datasheet you can see the LEM Hass 300 up through 600 have a measurement range to 900A. Each model differs only in their sensitivity.
The 300= 2.08mV/A, 400=1.56mV/A, etc. The Tamura is 3.75mV/A which is why when you use the 300, you need to apply 1.8x gain in the code.
The LEM Hass 200-S is actually the closest fit to the Tamura. It's sensitivity is 3.125mV/A and would require a gain of 1.2 (multiplier value in code =19 vs 29 used for LEM 300). It's range is a bit smaller at 600A, but still higher than the 500A limit of the Tamura.
-Chris