Just Bought A Pinpoint PH, quick user question.

cham · 08/09/2006, 02:53 PM

Bought it used with no instruction manual. I got some free calibration fluid with it made by coralife (i know, not the best) a 7.0 solution and 10.0 bottle.

I see two screw adjustments on the face of the pinpoint meter. How exactly do I adjust the PH reading, wich one of the screws does it. And what is the other screw there for?

Thanks

P.S. Should I throw the 7.0 solution away. I got two bottles of each.

cham · 08/09/2006, 05:20 PM

No one has a pinpoint PH monitor?

sparks56 · 08/09/2006, 05:24 PM

1 screw is for 7 cal. fluid/ other is for 10 cal.fluid they should be marked respectfully

cham · 08/09/2006, 05:28 PM

Just noticed that. So its a simple as putting the probe in the fluid and turning the screw to match the fluid you have it in.

Should I use the 7 fluid or 10 or both? Do I need to pour out the solution that I use to calibrate after each test or can I reuse the fluid?

Matt Rise · 08/09/2006, 05:38 PM

For my PinPoint I use the 7 and the 10. I buy the little PinPoint packs of cal fluid, just cut them open and throw them out when finished. I would probably not re-use the cal fluid.

PJSEA · 08/09/2006, 05:39 PM

No, it's not that simple. You want to use both solutions. One screw is used for the 7.0 solution and the other is used for the 10.0.
You need to rinse the probe between solutions(using tap water) and allow the reading to stabilize before adjusting.
You will probably need to repeat the adjustment 3 times. You are done when the readings settle in at 7.0 and 10.0 without an adjustment.
I am not familiar with the solutions you have but I use the small foil package solutions and throw them out when done.

Billybeau1 · 08/09/2006, 06:50 PM

You should also have a jar of clean water on hand to rinse after each test.

7.0 - adjust - rinse in clean water
10.0 - adjust - rinse in clean water
Repeat until no more adjustment are necessary.

As stated above it may take 3 or 4 times to get it stabilized.

fsn77 · 08/09/2006, 07:09 PM

Here's the manual online:
http://www.americanmarineusa.com/phmonitor.html

cham · 08/09/2006, 07:20 PM

Thanks so much for the responces. Boomer helped me out in another thread and it turns out my probe is no good. I have not yet paid the guy for this (brought it home to see if it would work first) and after finding out a new probe is $50 to my door, or I could have a whole new set up for $80 shipped to my door it looks like getting a new one is a no brainer.

CoralFiend · 08/09/2006, 09:20 PM

With calibration fluid, once you open the container and expose the sample to air, the pH will begin to change. It may not be accurate to use after the first use. Better to go with the single use pouches and throw it away when you are done. Always use fresh fluid to calibrate your meter, or the results you get may be inaccurate.

08/09/2006, 02:53 PM	#1
cham Registered Member Join Date: Jun 2006 Location: Winter Garden, FL Posts: 3,632	Just Bought A Pinpoint PH, quick user question. Bought it used with no instruction manual. I got some free calibration fluid with it made by coralife (i know, not the best) a 7.0 solution and 10.0 bottle. I see two screw adjustments on the face of the pinpoint meter. How exactly do I adjust the PH reading, wich one of the screws does it. And what is the other screw there for? Thanks P.S. Should I throw the 7.0 solution away. I got two bottles of each. Last edited by cham; 08/09/2006 at 03:22 PM.

08/09/2006, 05:24 PM	#3
sparks56 Registered Member Join Date: Jun 2005 Location: palm coast, fl. Posts: 216	pinpoint 1 screw is for 7 cal. fluid/ other is for 10 cal.fluid they should be marked respectfully __________________ STEVE Current Tank Info: 65 gal. softie tank/ new 120 sps in the works, 40 gal sump/ mag 18 return/ 1/4 delta star/ 25watt uv/ 2x250 ARO 10k ushio's/ 2 - 110 watt reef suns/ 2- 110watt actinics /DELTEC-AP 600 skimmer/ 150 gal. cichlid tank

08/09/2006, 05:20 PM	#2
cham Registered Member Join Date: Jun 2006 Location: Winter Garden, FL Posts: 3,632	No one has a pinpoint PH monitor?

08/09/2006, 05:28 PM	#4
cham Registered Member Join Date: Jun 2006 Location: Winter Garden, FL Posts: 3,632	Just noticed that. So its a simple as putting the probe in the fluid and turning the screw to match the fluid you have it in. Should I use the 7 fluid or 10 or both? Do I need to pour out the solution that I use to calibrate after each test or can I reuse the fluid?

08/09/2006, 05:38 PM	#5
Matt Rise Registered Member Join Date: Nov 2003 Location: Rhode Island Posts: 453	For my PinPoint I use the 7 and the 10. I buy the little PinPoint packs of cal fluid, just cut them open and throw them out when finished. I would probably not re-use the cal fluid.

08/09/2006, 05:39 PM	#6
PJSEA Registered Member Join Date: Dec 2004 Location: Pawleys Island, SC Posts: 295	No, it's not that simple. You want to use both solutions. One screw is used for the 7.0 solution and the other is used for the 10.0. You need to rinse the probe between solutions(using tap water) and allow the reading to stabilize before adjusting. You will probably need to repeat the adjustment 3 times. You are done when the readings settle in at 7.0 and 10.0 without an adjustment. I am not familiar with the solutions you have but I use the small foil package solutions and throw them out when done.

08/09/2006, 06:50 PM	#7
Billybeau1 Registered Member Join Date: Jul 2005 Location: Dyer, Indiana Posts: 12,010	You should also have a jar of clean water on hand to rinse after each test. 7.0 - adjust - rinse in clean water 10.0 - adjust - rinse in clean water Repeat until no more adjustment are necessary. As stated above it may take 3 or 4 times to get it stabilized.

08/09/2006, 07:09 PM	#8
fsn77 Registered Member Join Date: Mar 2006 Location: SC Posts: 777	Here's the manual online: http://www.americanmarineusa.com/phmonitor.html

08/09/2006, 07:20 PM	#9
cham Registered Member Join Date: Jun 2006 Location: Winter Garden, FL Posts: 3,632	Thanks so much for the responces. Boomer helped me out in another thread and it turns out my probe is no good. I have not yet paid the guy for this (brought it home to see if it would work first) and after finding out a new probe is $50 to my door, or I could have a whole new set up for $80 shipped to my door it looks like getting a new one is a no brainer.

08/09/2006, 09:20 PM	#10
CoralFiend Registered Member Join Date: Apr 2003 Location: Lake Charles, LA Posts: 304	With calibration fluid, once you open the container and expose the sample to air, the pH will begin to change. It may not be accurate to use after the first use. Better to go with the single use pouches and throw it away when you are done. Always use fresh fluid to calibrate your meter, or the results you get may be inaccurate.