Zeroing the CTi-M

Discuss how to competently carry out diagnostics and repair of engine management systems
zap
Posts: 19
Joined: Mon Jun 18, 2018 11:59 pm

Zeroing the CTi-M

Post by zap » Sat Nov 10, 2018 12:36 am

I just received my CTi-M a few weeks ago. I haven't had many opportunities to use it yet, but I've gotten some good waveforms so far.

The only problem I've had is that when zeroing with the button on the CTi-M, it's still reading ~.1a on the screen. That's with the CTi-M in open air, not on a wire, and happens every time the button is pressed. Is there anything I can adjust on the CTi-m, or in the software to get that reading closer to zero?

Kelvin
Posts: 14
Joined: Sun Mar 01, 2015 10:35 pm

Re: Zeroing the CTi-M

Post by Kelvin » Wed Nov 14, 2018 1:20 pm

Is there anything I can adjust on the CTi-m, or in the software to get that reading closer to zero?
Yes, you can adjust the CTi-M by yourself.
To do this, push apart the wire and remove the upper jaw.
Accurately adjust the required accuracy with a trimmer resistor, time to time pressing zeroing button and observing zero line on the screen.
Attachments
IMG_7061.JPG
IMG_7061.JPG (1.8 MiB) Viewed 1519 times
IMG_70601.jpg
IMG_70601.jpg (1.37 MiB) Viewed 1519 times

zap
Posts: 19
Joined: Mon Jun 18, 2018 11:59 pm

Re: Zeroing the CTi-M

Post by zap » Fri Nov 16, 2018 3:24 pm

That worked great, thank you!

Jorge S. Viera
Posts: 27
Joined: Sat Aug 12, 2017 5:09 pm

Re: Zeroing the CTi-M

Post by Jorge S. Viera » Fri Jan 18, 2019 12:26 pm

Hola colegas!!! Me sucede lo mismo.
La linea cero me queda por encima de cero.

Tengo otra consulta con respecto a la Pinza CTI-M

1) Cuando realizamos la comprobación de bombas de combustible donde usamos la pinza amperimetrica y un canal para voltaje, hay algún panel analizador que ya este pronto para esta función????

Descargue algunas algunos scripts de bomba de combustible de la pagina para ver los controles y me di cuenta que ya tenían marcadores. Por eso pensé que ya había echo algún panel analizador ya pronto.

2) Al seleccionar la pinza amperimetrica en el canal correspondiente, me aparecen tres opciones de selecion de pinza CTI-M. La que mejor me funciono fue la ultima de abajo CTI-M. Esto es asi??? Cual seria la correcta? Y las otras dos opciones para que servirían???
pinza CTI-M.png
pinza CTI-M.png (99.15 KiB) Viewed 1387 times
???

Jorge S. Viera
Posts: 27
Joined: Sat Aug 12, 2017 5:09 pm

Re: Zeroing the CTi-M

Post by Jorge S. Viera » Fri Jan 18, 2019 1:02 pm

Ultima pregunta.
La medicion se realiza seleccionando 30x1 o 6x1????

Jorge S. Viera
Posts: 27
Joined: Sat Aug 12, 2017 5:09 pm

Re: Zeroing the CTi-M

Post by Jorge S. Viera » Fri Jan 18, 2019 4:40 pm

que significa cuando la luz de la pinza esta parpadeando??? O cuando la mantenes el boton zero y queda parpadeando??

Kelvin
Posts: 14
Joined: Sun Mar 01, 2015 10:35 pm

Re: Zeroing the CTi-M

Post by Kelvin » Mon Jan 21, 2019 2:00 pm

Hello,
Cuando realizamos la comprobación de bombas de combustible donde usamos la pinza amperimetrica y un canal para voltaje, hay algún panel analizador que ya este pronto para esta función????
Can you tell me what analyzer panel do you need?
I don't understand this question.
Esto es asi??? Cual seria la correcta? Y las otras dos opciones para que servirían???
These two settings (-20A... +50A (100mV/A) and -4A.... +10A (500mV/A)) are used for previous model of CTi current clamps.
Now you should select CTi-M current clamps.
La medicion se realiza seleccionando 30x1 o 6x1????
You should select 30x1 mode.
que significa cuando la luz de la pinza esta parpadeando??? O cuando la mantenes el boton zero y queda parpadeando??
When LED blinks, it means that clamps can not calibrate. Maybe there is any current flowing through a wire inside the jaws.
You should calibrate current clamps without any wires inside the jaws.

BellaWitt
Posts: 3
Joined: Sun Jan 27, 2019 10:26 am

Re: Zeroing the CTi-M

Post by BellaWitt » Sun Jan 27, 2019 10:29 am


zap
Posts: 19
Joined: Mon Jun 18, 2018 11:59 pm

Re: Zeroing the CTi-M

Post by zap » Sun Jan 27, 2019 3:08 pm

When LED blinks, it means that clamps can not calibrate.
Do you mean the white LEDs inside the jaws? I've never noticed them blinking before.

Kelvin
Posts: 14
Joined: Sun Mar 01, 2015 10:35 pm

Re: Zeroing the CTi-M

Post by Kelvin » Sun Jan 27, 2019 4:57 pm

Do you mean the white LEDs inside the jaws?
Yes, two white LEDs inside the jaws.

Post Reply