not showing voltage

[mackos]

Hi Guys. When testing an electronic light transformer on or off load 240v/60w for output voltage my old Fluke 77 or my new Fluke 117 won't detect any voltage either on AC or DC or auto, but my Fluke T120 will pick up the 12v output. Anybody know why this is.
Thanks Mack.

 

[static zap]

Did you leave your fluke 77 on auto ,or deliberately cycle ..to an appropriate one . (near 20V AC ?)
(pulsating voltages can confuse auto range at times)
..and occasionally a meter never settles...
Random like figures..!

 

[GeorgeCooke]

It is not a transformer. It is a switch mode power supply operating at 10s of kHz. Are your old Flukes rated at those frequencies?

 

[telectrix]

get this bad boy.

DANIU ADS2031H Oscilloscope portatif 2,4 pouces LCD Écran 30MHz Largeur de bande 200M Taux d'échantillonnage

Only 59,34€, buy best daniu ads2031h handheld oscilloscope 2.4 inch lcd screen 30mhz bandwidth 200m sampling rate sale online store at wholesale price.

www.banggood.com

 

[Strima]

get this bad boy.

DANIU ADS2031H Oscilloscope portatif 2,4 pouces LCD Écran 30MHz Largeur de bande 200M Taux d'échantillonnage

Only 59,34€, buy best daniu ads2031h handheld oscilloscope 2.4 inch lcd screen 30mhz bandwidth 200m sampling rate sale online store at wholesale price.

www.banggood.com

You would go and show me that wouldn't you, I was behaving and promised myself not to buy any tools this month...

 

[telectrix]

hehe, just don't let pete999 se it. oops. he probably has. seriously though for that money, it's a steal.

 

[telectrix]

already got this multimeter. waveform shown is dimmer output @ about 70%.

 

[Strima]

Thats me just broken my promise...

 

[Pete999]

hehe, just don't let pete999 se it. oops. he probably has. seriously though for that money, it's a steal.

50 notes nah she would have an epi