Do not apply any voltage to output terminals except in SIMULATE mode. Any wrong application may damage internal
circuit.
2.11. Constant current output (SOURCE mode)
•
Turn the rotary switch to “”; the screen displays “OUTPUT” and “LOOP POWER”; output is set as 0mA.
•
Insert black probe into “mA”” terminal ,and insert red probe into “+LOOP” terminal;
•
Press ”mA%” button to display current value in percentage form.
•
Press <LEFT>, <RIGHT>, <UP>, <DOWN> buttons to set output value.
•
Connect the leading wire to the circuit under test.
2.12. Constant current output (SIMULATE mode)
SIMULATE mode refers to simulate a group of loop-circuit current transmitter with the Meter. If there are cases of an
external DC voltage (range from 5-28 V) and tested loop current in series, then select SIMULATE mode.
Warning
Before connecting the testing lead to loop circuit current, turn the rotary switch to any position of mA output. Otherwise,
low impedance from other position of rotary switch will appear and cause current higher than 35mA to go through the
loop circuit.
•
Turn the rotary switch to “”; the screen displays “OUTPUT” and “SIMULATE”; output is set as 0mA.
•
Insert black probe into “mA”” terminal ,and insert red probe into “mA” terminal; Press ”mA%” button to display
current value in percentage form.
•
Press <LEFT>, <RIGHT>, <UP>, <DOWN> buttons to set output value.
•
Connect the leading wire to the circuit under test.
2.13. Manual-step output
In constant current output mode, press green button to select manual-step output function: increases or
decreases in 25% or 100% step. Press <UP>, <DOWN> button may increase or decrease current in 25% or 100% step.
2.14. Setup function
Setup function may:
•
Start and close automatic power-off function.
•
Open and close buzzer.
In power-off state, press button and turn the rotary switch from OFF to any other position simultaneously. Wait for 2
seconds and then loosen. Press button to select setup function; press button to change setup state; press green button to
hold setup value.
