Wiring Details; Ma Output Loop-Powered Wiring (Factory Setting); Permitted Impedance In The 4-20 Ma Loop - Honeywell 301 Serie Mode D'emploi

Wiring Details

4-20 mA Current Sourcing Output Wiring
The transmitter supplies the loop current. The maximum impedance supported by the loop is 400 ohms. To
enable this configuration, the three jumpers must be placed on positions 1-2, 3-4 and 5-6 at distinct outputs
J16 through J23.
A dedicated power supply must be used with each
unit. Considerable damage may occur if this condition
is not strictly met.

4-20 mA Output Loop-powered Wiring (Factory Setting)

The 4-20 mA output is factory set for loop-powered operation and requires a power source of 12 Vdc to 30
Vdc. The overall permitted impedance depends on the voltage supplied at the 4-20 mA loop. To enable this
configuration, the three jumpers must be placed on positions 2-3, 4-5 and 6-7 at distinct outputs J16 through
J23.

Permitted Impedance in the 4-20 mA Loop

69
Voltage Source Applied
12 Vdc
16 Vdc
20 Vdc
24 Vdc
30 Vdc
Total Impedance
400 Ohms
600 Ohms
800 Ohms
1000 Ohms
1300 Ohms