Maker Pro
Maker Pro

Time delay relay controlled by a remote potentiometer

I

Ignoramus24136

Jan 1, 1970
0
I would like to find a time delay relay (12v would be fine), with
delay value that could be controlled by a remote potentiometer. I want
to mount relays on my control board, and the pot to mount on the
control panel. Ability to switch 120V is a plus. Any ideas?

I need both time delay on and time delay off (for TIG gas control).

i
 
S

scada

Jan 1, 1970
0
Ignoramus24136 said:
I would like to find a time delay relay (12v would be fine), with
delay value that could be controlled by a remote potentiometer. I want
to mount relays on my control board, and the pot to mount on the
control panel. Ability to switch 120V is a plus. Any ideas?

I need both time delay on and time delay off (for TIG gas control).

i

Try www.amperite.com , if you don't see exactly what you want they will make
it to your specs.
 
G

Glen Walpert

Jan 1, 1970
0
I would like to find a time delay relay (12v would be fine), with
delay value that could be controlled by a remote potentiometer. I want
to mount relays on my control board, and the pot to mount on the
control panel. Ability to switch 120V is a plus. Any ideas?

I need both time delay on and time delay off (for TIG gas control).

How about just yank the potentiometer out of a time delay relay that
has one, and mount it on your front panel? Or mount the TD relay to
the panel with the knob sticking out?

The delay on is not really required for manual TIG, you can tap the
footpedal to start the gas while holding the torch away from the work,
then start welding after gas flow is well started but before the delay
off timer turns it off.
 
E

ehsjr

Jan 1, 1970
0
Ignoramus24136 said:
I would like to find a time delay relay (12v would be fine), with
delay value that could be controlled by a remote potentiometer. I want
to mount relays on my control board, and the pot to mount on the
control panel. Ability to switch 120V is a plus. Any ideas?

I need both time delay on and time delay off (for TIG gas control).

i

V+ ---+----+---[Relay]---+----+
| | | |
| +------|<-----+ |
| |
o |
PB| /c
o---+-----+----[R]----| NPN darlington
A | | \e
| P |
[C] o<--+ |
| T | |
| | | |
Gnd ------+-----+---+---------+

Press the pushbutton or put +V on point A to
energize the relay. Timing starts when + is
removed from point A and ends when the relay
drops.

Ed
 
Top