USING VOLTAGE AND CURRENT TRANSDUCERS
PM1000+ Power Analyzer User Manual © Voltech 2010 Page 23
REMOVE ANY CONNECTIONS TO THE NORMAL ALO TERMINAL!
EXT-LO and ALO are connected inside the PM1000+. To avoid errors
and a risk of electric shock, remove all connections to ALO.
3. Set up the PM1000+ to measure current from the EXT-HI and EXT-LO terminals.
Press ‟MENU‟
Select „Inputs‟ and press
Select „Shunts‟ and press
Select „External‟ and press
Press „MENU‟ to return to the measurement display.
4. Scale the measurement on the display.
The default scale is 1V = 80A.
The scale required for any external shunt is given by:
Scale = 1 / (80 x R)
(where R is the resistance value of the external shunt).
In this example where R = 0.001 Ohms
Scale = 1 / (80 x 0.001)
Scale = 1 / 0.08 = 12.5
To enter a scale factor for current:
Press ‟MENU‟
Select „Inputs‟ and press
Select „Scaling‟ and press
Select „Amps‟ and press
Use the delete key to clear the entry.
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