Omega Vehicle Security OM-550 manual Matching a Current Transducer, = 2.0000 VDC = R1, R1 = 2

4.14.3 MATCHING A CURRENT TRANSDUCER

Use one resistor to develop the necessary voltage at the input:

I

+

TRANSDUCER R1 V OM-550 INPUT

OUTPUT

-

Figure 4-9

V= OM-550 maximum input voltage

=2.0000 VDC

=R1 * I

I= 1/2 transducer's maximum output current

R1 = 2 / I

The 4-20 mA Current Probe uses this technique (with R1=100 Ω) to convert a 4-20 mA current to a 0.4-2.0 VDC signal.

OM-550 u33u