YOKOGAWA MY 40 Insulation Tester
Specification
Model: MY40-01, Digital 250V/ 250 Megohm 500V/ 2000 Megohm 1000V/ 2000 Megohm w/ case
Features:
Digital Model with 4 voltage/ resistance ratings
Multifunction, Insulation resistance, AC voltage and conductor resistance measurement
Insulation test mode: Comparator, memory, auto-hold and discharge functions
All test modes: Live-line alarm ( excluding AC voltage measurement) , battery check and automatic power-off
Easy to view, fluctuation-free display
Double-action safety mechanism
Protection against inadvertant setting of rotary switch to 1000V rating
Includes:
Test Leads
Line Probe/ Earth Probe
1.5V AA Batteries
Carrying Case
Instructions
Specifications:
Display: 3 1/ 2-digit LCD; 4000 count; backlight-illuminated; logarithmic bar graph; extension bar graph-no fluctuations, as the display shows the digit of a reading in the order in which each digit settles.
Comparator function: The MY40 alerts you by turning on the LOW symbol and sounding the buzzer if the measured value is smaller than reference value. You can allocate as many as three user-defined reference values to each rating. The factory-set defaults are 0.1M© , 0.2M© , and 0.4M© .
Memory function: For each rating, you can save as many as 20 measurements at desired memory address numbers.
Automatic discharge function: The MY40 automatically begins discharge when you turn off the MEAN switch. You can monitor the state of discharge by checking the bar graph and make sure discharge is complete by checking that the segment bar disappear.
High-voltage indicators: The high-voltage symbol and LED lamp come on to alert you when the MY40 is in insulation testing mode or if any voltage remains to be discharged.
Live-line alarm: If you apply an AC voltage of approximately 40V or higher across the input terminals, the MY40 alerts you by blinking the LED lamp and sounding buzzer.
Overrange input alarm: If the voltage being measured exceeds 600V during AC voltage measurement, the MY40 alerts you by flashing the Maximum Value indicator and sounding the buzzer.
Auto-hold function: The tester retains the measured resistance for approximately 5 seconds after the MEAS switch is turned off.
Dimensions: 125 ( W) x 103 ( H) x 53 ( D) ( mm) , excluding protrusions
Weight: 420 g ( main unit and batteries only, excluding accessories)
Batteries: Four AA ( R6P) batteries