Insulation_Tester

TM-507 Insulation Tester
Display:
- 4 digits LCD display.
- Polarity indication: Automatic polarity ¡¦ ¡V ¡¥ display for negative input.
- Low battery indication.
Functions:
- Function keys: POWER, GO, ZERO,LOCK, BACKLIT.
- Continuity test.
- Measures high insulation resistance with auto range:
250V: 4M ~ 1000M Ohm
500V: 4M ~ 2000M Ohm
1000V: 4M ~ 4000M Ohm
- Measures DC voltage (0V~600V), AC Voltage (0V~600V).
- Auto power off.
- Auto discharge.
Autorange:
-Open circuit voltage: <1.3 x V0
-Accuracy of nominal voltage: ¡V0% +10%
-Short circuit current: <3.0mA
-Nominal testing current: 1mA @ 1K Ohm x V (1mA @ 500K Ohm)

DC voltage measurement

Range	Resolution	Accuracy	Input impedance	Overload protection
0.1 - 600.0V	0.1V	+/- (0.5% rdg + 1 dgt)	3M Ohm	605V AC max RMS

AC voltage measurement

Range	Resolution	Accuracy	Input impedance	Overload protection
0.1 - 600.0V	0.1V	+/- (0.8% rdg + 4 dgt)	3M Ohm	605V AC max RMS

Max crest factor:

Resistance measure / Test Continuity with buzzer

Range	Resolution	Accuracy	Overload protection
0.1 - 199.9 Ohm	0.1 Ohm	+/- (2.0% rdg + 3 dgt)	605V AC max RMS per 1 minute

The buzzer sounds while measured resistance is lower than 30W

LO Ohm : Continuity of protection conductors

Range	Resolution	Accuracy	Overload protection
0.01 - 19.99 Ohm	0.01 Ohm	+/- (2.0% rdg + 3 dgt)	605V max RMS

Test current: >200mA DC up to 5 Ohm (measuring cables resistance included)

Test current: >45mA DC over 5 Ohm (measuring cables resistance included)

Open circuit voltage: 4 < V0 < 24V

M Ohm : Insulation resistance (Auto Range)

Test voltage	Range (Ohm)	Resolution (Ohm)	Accuracy	Overload protection
250V	0.001 - 0.100M	0.001M	+/- 10 dgt	605V max RMS
	0.101 ¡V 3.999M	0.001M	+/- (2.0% rdg + 5 dgt)
	4.00- 39.99M	0.01 M	+/- (2.0% rdg + 5 dgt)
	40.0 ¡V 399.9M	0.1 M	+/- (5.0% rdg + 5 dgt)
	400 ¡V1000M	1M	+/- (5.0% rdg + 5 dgt)
500V	0.001 - 0.250M	0.001M	+/- 15 dgt
	0.251 ¡V 3.999M	0.001M	+/- (2.0% rdg + 5 dgt)
	4.00- 39.99M	0.01 M
	40.0 ¡V 399.9M	0.1M
	400- 2000M	1M	+/- (5.0% rdg + 5 dgt)
1000V	0.001 - 0.250M	0.001M	+/- 15 dgt
	0.251 ¡V 3.999M	0.001M	+/- (2.0% rdg + 5 dgt)
	4.00- 39.99M	0.01 M
	40.0 ¡V 399.9M	0.1M
	400 - 1000M	1M	+/- (3.0% rdg + 5 dgt)
	1000 - 4000M	1M	+/- (5.0% rdg + 10 dgt)

YF-509 Insulation Tester
Display:
- 3½ digits LCD display with max.Reading of 2000 .
- Overload indication.
- Low battery indication.
Functions:
- Function keys: Data hold, Max.
- Equipped with a continuity test.
- Measures high insulation resistance with manual range :( 0.1M£[ to 2000M£[)
250V: 0.1M ~200M Ohm
500V :0.1M ~200M Ohm
1000V:1M ~ 2000MOhm
- Measures DC voltage (0V~1000V), AC Voltage (0V~750V).
Dimension:
- Size:160*100*52mm(LxWxH).
- Weight: About 480g (including battery)

ACV	Range	Resolution	Accuracy	Input impedance	Overload protection
ACV	ACV 750V	1V	+/- (0.8%+4)	10M Ohm	DC100V AC 750V rms

ACV	Range	Resolution	Accuracy	Input impedance	Overload protection
ACV	DCV 1000V	1V	+/- (0.5%+1)	10M Ohm	DC1000V AC 750V rms

Insulation high resistance	Range	Resolution	Accuracy	Short Current
	200M/250V	0.1M Ohm	+/- (3%+3)	0.4mA max
	200M/500V	0.1M Ohm	+/- (3%+3)	0.9mA max
	2000M/1000V	1M Ohm	+/- (3%+5)	1.7mA max

Continuity test	Resolution	Sound indication	Open voltage	Overload protection
Continuity test	0.1 Ohm	Less than 80Ohm	3.3V max	DC/AC 500Vrms

TM-508A Milliohm Meter /Battery or AC/DC Adaptor Powered
Display:
- 3½ digits LCD display with max.Reading of 2000 .
- Low battery indication.
Functions:
- Zero adjustment: External zero adjust knob.
- Very low impedance measurement by four wire type one pair coated clip.
- Wide measurement range, 0.1m to 20K Ohm in 6 positions.
- Function keys: D-H switch lockup readings for LCD display.
- Fuse specification: 2A/250V,5ø x 20mm, fast Min. Interrupt ratings 1500A.
Dimension:
-Size:160x 100x 52mm(LxWxH).
-Weight: About 700g.

Specifications:

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