T&R 200A-3PH mk2, Руководство по эксплуатации и техническому обслуживанию

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1.3.13.8 Timer mode: PULSE
Pulse mode is used to set the current in devices that are sensitive to heating due to the test
current (thermal relays and circuit breakers and instantaneous trips). In this mode current is
injected for 500ms when the ON switch is pressed. The current is captured and displayed.
1.4 Displayed Values and Messages
1.4.1 Displayed Values
The 200A-3PH mk2 display simultaneously shows the three injected test currents, the timer
result, the selected auxiliary input value and unit, onto the liquid crystal display. It also
displays warning and error messages, detailed in section 1.4.2.
0.00A 0.00A 0.00A
0.0V RMS 60.000s
Figure 1.14 Normal values displayed on screen
1.4.2 Warning Messages
In addition to the normal display screens, the 200A-3PH mk2 can display a range of warning
messages if the unit trips on over-current or duty cycle or is too hot internally. If an over
current or duty cycle trip occurs, the green ‘OFF’ pushbutton must be pressed to clear the trip
condition. If the unit trips on over temperature, the unit will automatically reset when the
temperature falls to an acceptable level. If the unit is over temperature, switching the unit off
and back on will not clear the message
– the unit must be allowed to cool.
Output Tripped
Press Green to Reset
Figure 1.15 Over-current trip warning message
Duty Cycle Trip
Press Green to Reset
Figure 1.16 Duty cycle trip warning message
Over Temperature
Output Disabled
Figure 1.17 Unit over temperature warning message