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Yokogawa MY40-01 Digital Insulation Tester

5 (1 Review) | Model: Yokogawa MY40-01

Yokogawa MY40 Digital Insulation Tester

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Digital 250V/250 Megohm 500V/2000 Megaohm 1000V/2000 Megaohm w/case

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
Weight including main unit and batteries only, excluding accessories

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List Price: $706.00

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Yokogawa MY40-01 Digital Insulation Tester

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

Digital Insulation Tester MY40

The MY40 alerts you by turning on the LOW symbol and sounding the buzzer if the measured value is smaller than the reference value. You can allocate as many as three user-defined reference values to each rating. The factory-set defaults are 0.1 MΩ, 0.2 MΩ and 0.4 MΩ.

External Dimensions (Unit: mm)


Yokogawa 93013 Protection Cover ×	Yokogawa B9108XA Accessory Housing Case ×	Yokogawa 93015 Carrying Case (case for housing both the main unit and accessories) ×

Hioki - IR5051-90

General Specifications
Width	125 mm
Height	103 mm
Depth	53 mm
Display	3 1/2-digit LCD; 4000 count; backlight-illuminated; logarithmic bar graph; extension bar graph-no fluctuations, as the display shows the digits 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 the reference value. You can allocate as many as three user-defined reference values to each rating. The factory-set defaults are 0.1 MΩ, 0.2 MΩ and 0.4 MΩ.
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 MEAS 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 40 V or higher across the input terminals, the MY40 alerts you by blinking the LED lamp and sounding the buzzer.
Overrange Input Alarm	If the voltage being measured exceeds 600 V 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.
Batteries	Four AA (R6P) batteries
Weight	420 g
Ambient Temperature/Humidity Ranges	23 ±5 /45-75% RH
Tolerance Mentioned Conditions
Max. Deviation from Zero Scale Value	6 digits
Indication of mark on bar graph	Approx. 4000 MΩ min. (500 V/1000 V) Approx. 400 MΩ min. (125 V/250 V)
No-Load Voltage	130% max. of rated voltage
Rated Measuring Current	1 mA (0 to 20%) when in first effective measuring range
Max. Short-circuit Current	2 mA

Testing Performance
Rating	Range Option	Resolution	Measuring Range	Tolerance	Lower Limit of measured Ω	Rated Current	Central Scale Value
125V/200MΩ	0.4000	0.1kΩ	0-0.0199MΩ	± (5%of rdg+6dgt)	0.125MΩ	1mA	5MΩ
	4.000	1kΩ	0.0200-20.00MΩ*	± (2%of rdg+6dgt)
	40.00	10kΩ	20.01-200.0MΩ	± 5%of rdg
	200.0	100kΩ	-	-
250V/200MΩ	0.4000	0.1kΩ	0-0.0499MΩ	±(5%of rdg+6dgt)	0.25MΩ	1mA	5MΩ
	4.000	1kΩ	0.0500-20.00MΩ*	± (2%of rdg+6dgt)
	40.00	10kΩ	20.01-200.0MΩ	±5%of rdg
	200.0	100kΩ	-	-
500V/2000MΩ	4.000	1kΩ	0-0.999MΩ	± (5%of rdg+6dgt)	0.5MΩ	1mA	50MΩ
	40.00	10kΩ	1.000-500MΩ*	± (2%of rdg+6dgt)
	400.0	100kΩ	501-2000MΩ	± 5%of rdg
	2000	1MΩ
1000V/2000MΩ	4.000	1kΩ	0-1.999MΩ	± (5%of rdg+6dgt)	2MΩ	0.5mA	50MΩ
	40.00	10kΩ	2.000-1000MΩ*	± (2%of rdg+6dgt)
	400.0	100kΩ	1001-2000MΩ	± 5%of rdg
	2000	1MΩ	-	-

Tech Specs

Micro / Milli / Meg Ohmmeters/Megohmmeter / Insulation Resistance Testers Template
IR Test Voltage	1,000 V, 25V
Maximum Insulation Resistance	2000 M Ohms (2 G Ohms)
Minimum Insulation Resistance	0 Ohms (0 G Ohms)
Variable Incremental Voltage	No
Live Circuit Voltage Detection	Yes Live Circuit Voltage Detection 600 V
Timer	No
Test Equipment General Attributes
Unique Features	Comparator function, Memory function, Automatic discharge function, High-voltage indicators, Live-lin alarm, Overrange input alarm, and Auto-hold function
Warranty	12 MONTHS (1 YEARS)
Product Weight	420 GRAMS (0.926 LBS) Product Weight including batteries
Product Height	53 MM (2.09 IN)
Product Length	125 MM (4.92 IN)
Product Width	103 MM (4.06 IN)
Data Logging	Yes
HTS/Schedule B Number	9030.33.0040
ECCN Number	EAR 99
Calibration Included	Factory Calibration
Country of Origin	Japan

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Purchased more than one over the years

5.0

This product suites all our needs and is compact and durable. We have never had any issues with the many units we have at our company.

Verified Purchase Marc Spunt on Jan 30, 2014

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