Main measurement selection is by rotary knob for all main test functions.
The display has a major and minor 31/2 digit readout, plus an analogue arc. All primary
results are displayed in the larger digits. Additionally, auxiliary test information such as
frequency, leakage current, Insulation or x`circuit voltage etc is displayed in the smaller
secondary 3 ½ digit display within the main window.
Insulation testing
The insulation test voltages range from 10 V to 1000V depending on model. Insulation
resistance measurement extends from 20Gohm to 200Gohm, with the option to display the
insulation leakage current on the MIT410, MIT420 and MIT430.
A buzzer threshold permits an operator to set a minimum buzzer limit. If the insulation
resistance exceeds the minimum limit the buzzer sounds without the operator having to
check the actual measured value.
Timed insulation testing of 30/60 seconds and 1min/10min for PI/DAR testing is also
available on the MIT410 upwards, but excludes the MIT480.
Variable insulation voltage (MIT400). (This is an example security method, which may
be modified on the final design.) To set the test voltage, turn to MΩ and press the ‘up’
button. Use the ‘left’, ‘down’ and ‘right’ buttons to enter a security code number. Press ok.
Without test leads connected, press TEST and observe the terminal voltage in top left
hand corner of display. Use the ‘up’ and ‘down’ buttons to set the desired open circuit
voltage and press ‘ok’.
This can only be changed by entering the correct security code.
Continuity testing
A 200mA continuity test is available with a resolution to 0.01ohms for fast accurate cable
resistance measurement.
Alternatively a buzzer range can be used for fast point-to-point testing where
measurement is not required.
Selectable buzzer threshold aids fast testing where measured values are not to be
recorded, only a pass fail at a specified limit is required, with the option to disable buzzer
sounding if required.
(14 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern