EL37x2 - Pin assignment

EL37x2 - Pin assignment 1:
Pin assignment EL3702, EL3742

Pin assignment and wiring

Terminal point

Description

Name

No.

+ Input 1

1

+ Input 1

- Input 1

2

- Input 1

GND

3

Signal ground for input 1 (internally connected to terminal point 7)

Shield

4

Shield

+ Input 2

5

+ Input 2

- Input 2

6

- Input 2

GND

7

Signal ground for input 2 (internally connected to terminal point 3)

Shield

8

Shield

Electrical isolation of the inputs

EL37x2 - Pin assignment 2:
Electrical isolation of the inputs

Sample: EL3602 wiring

In figure 2, the circuit diagram with a variable voltage source (channel 2) should be regarded as equivalent to the configuration of channel 1 with a sensor and measuring amplifier.

EL37x2 - Pin assignment 3:
EL3702 - equivalent circuit diagram with variable voltage source

Sample: EL3742 wiring

In figure 2, the circuit diagram with a variable current source (channel 2) should be regarded as equivalent to the configuration of channel 1 with a sensor.

EL37x2 - Pin assignment 4:
EL3742 - equivalent circuit diagram with variable current source