Timer - help!

Old Estapona

A
Old Estapona

  • 0
  • 0
  • 22
Sonatas XII-75 (Faith)

A
Sonatas XII-75 (Faith)

  • 0
  • 1
  • 20
One spot

H
One spot

  • 0
  • 2
  • 30
Tyre and chain.jpg

D
Tyre and chain.jpg

  • 0
  • 0
  • 20
*

A
*

  • 8
  • 2
  • 108

Recent Classifieds

Forum statistics

Threads
200,145
Messages
2,802,668
Members
100,135
Latest member
Byron Brauchli
Recent bookmarks
0

BJC0000

Subscriber
Joined
Feb 28, 2020
Messages
62
Location
Northallerton UK
Format
Multi Format
Not sure if this is the right place to post this but nothing more obvious so.....

I bought this timer (pic attached) with a view to controlling my UK mains powered UV light box, but it arrived without any instructions.
Can anyone provide really, really simple step-by-step instructions on:
a) wiring
b) setting up 'programs'?

All I want it to do is, having manually switched on, time for the required interval and switch off.
Preferably with a choice of intervals (just like a count-down timer but without me having to stand and watch it count down).

Yes, there are videos but my Chinese is a bit rusty...
Any help much appreciated
 

Chan Tran

Subscriber
Joined
May 10, 2006
Messages
7,026
Location
Sachse, TX
Format
35mm
Yes if you can get clear pictures of everything we should be able to figure it out. It wouldn't be hard. Second thought since you said the video is in Chinese then it may be a problem as it a brand new unit. New unit tends to be much more complicated than old timer and if it's just a timer module and not a timer it would be even more complicated.
 

Rick A

Subscriber
Joined
Mar 31, 2009
Messages
9,980
Location
Laurel Highlands
Format
8x10 Format
A basic GraLab or Time-O-Lite timer is sufficient for UV boxes, no need for anything complex.
 
OP
OP

BJC0000

Subscriber
Joined
Feb 28, 2020
Messages
62
Location
Northallerton UK
Format
Multi Format
OK try pic again
 

Attachments

  • timer 4.JPG
    timer 4.JPG
    86.3 KB · Views: 31
OP
OP

BJC0000

Subscriber
Joined
Feb 28, 2020
Messages
62
Location
Northallerton UK
Format
Multi Format
More info:
I did look at enlarger timers but these were either analogue (wary of S.H. analogue timers), needed special plugs and/or wiring, limited to 99secs or far too expensive - or a combination of those .
All I really want is something simple like the timers I've been using (attempt at another picture upload) but with input and output leads and presumably a relay.
Price isn't the overriding factor, within limits, so if anyone can come up with an alternative I'd be happy to consider it.
 

Attachments

  • timer 5.JPG
    timer 5.JPG
    79.4 KB · Views: 5

koraks

Moderator
Moderator
Joined
Nov 29, 2018
Messages
24,544
Location
Europe
Format
Multi Format
Check this manual out.

Nice find. It's a typically cryptic manual for devices of this kind; the manuals tend to make sense only after you've figured out how it works...however, the manual should help in guiding experimentation.
I *think* the logic of this thing is that you can program its behavior in terms of a couple of parameters:
* Whether the output is switched ON or OFF at startup (this should be OFF I think)
* Whether the program cycle starts automatically or only after manual input (this should be set to manual)
* Duration of the first ('on') part of the cycle
* Duration of the second ('off') part of the cycle
* Total number of cycles the device will perform; this can (and should in our case) be set to 'infinite'
The tricky bit is the on/off cycles; either one should probably be set to zero.

The good thing is that usually, timers like these save their settings, so once you've set it up properly, all you have to do is set the time for an exposure.

A (significantly) more expensive, but also far more elegant, functional and easy to use alternative is a timer like those made by @Ian Leake with (optional) UV integrator for consistent exposures: https://www.ianleake.com/products/lc6-light-integrator-and-darkroom-timer
I'm sure there are other and possibly much more affordable options that are also easy to use, but I kind of lost touch with what's available on the market when I started to make things like these myself to my own design & specifications (which is a rabbit hole in itself; not necessarily recommended).
 

Chan Tran

Subscriber
Joined
May 10, 2006
Messages
7,026
Location
Sachse, TX
Format
35mm
Nice find. It's a typically cryptic manual for devices of this kind; the manuals tend to make sense only after you've figured out how it works...however, the manual should help in guiding experimentation.
I *think* the logic of this thing is that you can program its behavior in terms of a couple of parameters:
* Whether the output is switched ON or OFF at startup (this should be OFF I think)
* Whether the program cycle starts automatically or only after manual input (this should be set to manual)
* Duration of the first ('on') part of the cycle
* Duration of the second ('off') part of the cycle
* Total number of cycles the device will perform; this can (and should in our case) be set to 'infinite'
The tricky bit is the on/off cycles; either one should probably be set to zero.

The good thing is that usually, timers like these save their settings, so once you've set it up properly, all you have to do is set the time for an exposure.

A (significantly) more expensive, but also far more elegant, functional and easy to use alternative is a timer like those made by @Ian Leake with (optional) UV integrator for consistent exposures: https://www.ianleake.com/products/lc6-light-integrator-and-darkroom-timer
I'm sure there are other and possibly much more affordable options that are also easy to use, but I kind of lost touch with what's available on the market when I started to make things like these myself to my own design & specifications (which is a rabbit hole in itself; not necessarily recommended).

Yes I have enough stuff around the house that I can buld something to do the job just the way I wanted. The cost would be high if I have to buy the components but I don't because as I said I have things around the house I can use to make something like that.
 

MattKing

Moderator
Moderator
Joined
Apr 24, 2005
Messages
53,892
Location
Delta, BC Canada
Format
Medium Format
OK try pic again

Generally speaking, if you want to upload photos easily, resize them down to ~1000 pixels on the long dimension, and save them as a jpeg - I use quality 80.
When I looked at that photo I immediately thought: "Wow, the proverbial black box - I've never actually seen one."
 

reddesert

Member
Joined
Jul 22, 2019
Messages
2,504
Location
SAZ
Format
Hybrid
FWIW, I wouldn't be scared of second-hand analog enlarger timers. There is not a lot to go wrong with them and if they work now, they will probably continue working. A bigger issue is perhaps the need for longer exposure times than 99 sec; that rules out many simple electronic timers that did 0.1-99 sec, and some simple analog timers that maxed out at 60 sec or so. How about the venerable Gralab 300 timer, the one that looks like a big square black clock? They are kind of expensive new, but there were so many that I see them floating around on the used market inexpensively (in the US anyway). I think they go to 60 minutes. You need a 220v version of course.
 
OP
OP

BJC0000

Subscriber
Joined
Feb 28, 2020
Messages
62
Location
Northallerton UK
Format
Multi Format
Thanks for all replies.
Matt; I had thought that as the original jpg was only 600k it would upload. Resizing worked so I'll remember that in future.
Koraks: as ever comprehensive. I looked at the Ian Leake site but that kit costs more than my entire (self-built) set-up. As for building my own - no chance! I have built switches using relays before to start machinery but electronic / timed control? I'm getting older and would like to use the switch before I drop off my perch. Appreciate the confidence ;-)
Chan Tran: useful manual. I have several potted versions so between them I should be able to start setting it up. Never thought it would be so complicated. As it's UK mains voltage I was wary of experimenting too cavarlierly - that stuff can make you eyes water.
Thanks again to everyone - Photrio usually has the answers
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom