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Re: RBTI test equipment   Message List  
Reply | Forward Message #10896 of 11254 |
Re: [RBTI] Re: Test equipment - pH meters

Thanks everyone for your input. All helpful!

JodyT


On Jun 29, 2009, at 9:24 PM, Bob wrote:

>
>
> I have been using the Extech PH110 with the flat surface replaceable
> electrode for 6 months and it works great. Not knowing how accurate
> it would be, I check the calibration often and it is always right on
> or within .02 (two hundreths). I recalibrate with 3 buffers - 4, 7,
> 10. The cost is reasonable at about $100 with the calibration buffers.
>
> Bob Hedges
>
>
>



[Non-text portions of this message have been removed]
Tue Jun 30, 2009 2:16 am

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jodyjodyjodyt2
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Forward 		Message #10896 of 11254 |
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Someone wrote privately... ... First, any consultant near Abilene should do a public shout-out so this person can see their email address and write back. I... 		RH
brixmanus
Offline Send Email 		Jun 28, 2009
2:43 pm

I have a question for all RBTI practitioners- Has anyone else had significant inaccuracies with their pH meters? I've had my Cardy Twin pH meter for about 3...
Jody Troupe
jodyjodyjodyt2
Offline Send Email 		Jun 28, 2009
7:42 pm

Jody, I have a Horiba B-213 pH meter from Pike Agri Lab, but the calibrating solutions are 7.0 and 4.01. After calibration, mine reads the two control ...
Thomas Giannou
thomasgiannou
Offline Send Email 		Jun 28, 2009
11:29 pm

Hi Thomas- Thanks for the feedback. I guess my pH solution is 7.0 also, like yours, but in a tiny inscription right next to the large number "7" is written...
Jody Troupe
jodyjodyjodyt2
Offline Send Email 		Jun 29, 2009
12:19 am

Jody, If I remember correctly, the meter I purchased cost me $230.00 at Pikes. That 7.0 / 6.8 number combination doesn¡¯t make any sense. Typical of ...
Thomas Giannou
thomasgiannou
Offline Send Email 		Jun 29, 2009
6:41 am

2009/6/29 Thomas Giannou <thomas@...> ... I am going to butt in and add emphasis to what Thomas is saying. The calibration process with the...
RH
brixmanus
Offline Send Email 		Jun 29, 2009
10:44 am

I have been using the Extech PH110 with the flat surface replaceable electrode for 6 months and it works great. Not knowing how accurate it would be, I check...
Bob
hedgesbd
Offline Send Email 		Jun 30, 2009
1:25 am

Thanks everyone for your input. All helpful! JodyT ... [Non-text portions of this message have been removed]...
Jody Troupe
jodyjodyjodyt2
Offline Send Email 		Jun 30, 2009
2:20 am

Hi Jody, That was a very interesting post. Since starting my Online RBTI Class, the recommendation has always been to use the reagents because of the problems...
olszta
olsztaparker
Offline Send Email 		Jun 29, 2009
1:18 am

welcome to the club jody,sorry. but you are describing the history of my experiance with ph meters. nothing but junk in my opinion. mine hasn't worked from...
ohhomagoo@...
rick_guttersohn
Offline Send Email 		Jun 29, 2009
1:32 am

I have tried the hanna ph tester ( it was about $40 and the conditioning solutions were about another $50 ). I did several comparisons vs the reagents and the...
gg
glenngue
Online Now Send Email 		Jun 29, 2009
1:33 am
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