BEAMEX MC4 - Current Measurement Parallel to a Test Diode, Connections

Related Information
120 MC4 User Guide
Current Measurement Parallel to a Test Diode, Connections
The impedance of MC4's milliampere input is low enough to enable
current measurement parallel to a test diode in a 20 mA circuit.
Plus Side Test
Diode
Connections:
M e a s u r e
M a x 6 0 V , 3 0 V , 1 0 0 m A
T / C
m V
s e n s e
R , R T D
R m e a s
V , I ,
V , I ,
T e m p e r a t u r e / G e n e r a t e
X
I
I n p u t
S i g n a l
P o w e r
S u p p l y
Minus Side Test
Diode
Connections:
M e a s u r e
M a x 6 0 V , 3 0 V , 1 0 0 m A
T / C
m V
s e n s e
R , R T D R m e a s
V , I ,
V , I ,
T e m p e r a t u r e / G e n e r a t e
I n p u t
S i g n a l
P o w e r
S u p p l y
X
I
MC4 parallels the test diode of the transmitter and measures the
externally supplied output current of the transmitter.
Notes.
In higher temperatures: The leakage of the diode in the instrument
may affect the accuracy.