Megohmmeter Features - AEMC 5050 User Manual

2.1 Megohmmeter Features

1. Safety terminals: "+", "G" and "-" and access to the protective fuse.
2. AC power plug (direct operation on AC and battery recharge).
3. Back-lit liquid crystal display.
4. RS-232 serial interface male plug (9-pin)
• For calibration only (Model 5050)
• For connection to a PC or printer (Model 5060)
5. Rotary selector switch with 7 positions:
• OFF - Instrument is off
MΩ - 500V - Insulation measurement (to 2TΩ)
•
• MΩ - 1000V -Insulation measurement (to 4TΩ)
• MΩ - 2500V - Insulation measurement (to 10TΩ)
• MΩ - 5000V - Insulation measurement (to 10TΩ)
• MΩ - 50V-5000V - Insulation measurement with selectable test voltage
• SET-UP - Set-up of the megohmmeter
6. START/STOP button
7. 6 buttons (5050) or 8 buttons (5060), each with a first and second function.
The second functions are highlighted in yellow below each button:
2
• nd
• R-DAR-PI-DD - Lets you choose the type of measurement to be per-
formed. Instantaneous Resistance (R), Dielectric Absorption (DAR),
Polarization Index (PI), or Dielectric Discharge (DD).
R(t) - Shows/hides the interval values of insulation resistance, test volt-
•
age and time-stamping, following a time-controlled test.
• V/TIME - When measuring insulation, pressing this button displays the
time elapsed since the beginning of the measurement, then the exact
voltage generated. When performing resistance or capacitance measure-
ment, this button has no effect. In MR (memory recall), it displays the date
and time at which the measurement was stored, the exact test voltage
and the OBJ : TEST number.
•
•
• ALARM - Activates or deactivates the alarms programmed in SET-UP.
• - Selects a parameter to be modified.
• SMOOTH - Stops/starts smoothing of displayed values during insulation
testing.
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0.561.8187
- Selects the second function on each button.
(yellow button)
- Activates or deactivates the "time-controlled" test mode.
- Turns the display backlight ON or OFF.
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