#1   Report Post  
Old 19-11-2007, 01:50 AM posted to rec.gardens.orchids
external usenet poster
 
First recorded activity by GardenBanter: Nov 2007
Posts: 24
Default TDS Meter

Recently, I visited a hydroponic supply brick and mortar store to look
at TDS meters. They had some from the low end to $150+. Some needed
calibration (the cheaper ones) and some of the more expensive ones were
self calibrating.

What are others using and would you recommend it to another grower?

Good Growing,
Gene

  #2   Report Post  
Old 19-11-2007, 02:30 AM posted to rec.gardens.orchids
external usenet poster
 
First recorded activity by GardenBanter: Jul 2006
Posts: 1,344
Default TDS Meter

Sorry Gene, I'm no help. I have one, but don't use it.

K Barrett

"Gene Schurg" wrote in message
...
Recently, I visited a hydroponic supply brick and mortar store to look
at TDS meters. They had some from the low end to $150+. Some needed
calibration (the cheaper ones) and some of the more expensive ones were
self calibrating.

What are others using and would you recommend it to another grower?

Good Growing,
Gene



  #3   Report Post  
Old 19-11-2007, 03:09 AM posted to rec.gardens.orchids
external usenet poster
 
First recorded activity by GardenBanter: Nov 2006
Posts: 479
Default TDS Meter

TDS meters should only be used as point-of-reference devices.

They are merely cheap electrical conductivity (EC) meters that have a
built-in conversion factor for solids. Unfortunately, the conversion factor
should change with the specific ions in the solution to be measured, making
the built-in one worthless for "real" data. Read this:
http://www.firstrays.com/tds_and_ec.htm

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies. Books, Artwork, and lots of Free Info!


"Gene Schurg" wrote in message
...
Recently, I visited a hydroponic supply brick and mortar store to look
at TDS meters. They had some from the low end to $150+. Some needed
calibration (the cheaper ones) and some of the more expensive ones were
self calibrating.

What are others using and would you recommend it to another grower?

Good Growing,
Gene



  #4   Report Post  
Old 19-11-2007, 12:35 PM posted to rec.gardens.orchids
external usenet poster
 
First recorded activity by GardenBanter: May 2007
Posts: 59
Default TDS Meter

Hi Gene,

I use a Hanna 9813 pH/EC/TDS meter ($171 Hummert 2003/2004) and have had
great luck with it. I bought the $25 protective boot and the thing has
lived in the greenhouse for years. It has been dropped, dripped on, and
mistreated but still is a reliable work horse that always seems ready to go.
Before this meter I used the DIST WP4 ($52 Hummert 2003/2004). I was not
happy with this unit and replaced it although it still worked.

Pat


"Gene Schurg" wrote in message
...
Recently, I visited a hydroponic supply brick and mortar store to look
at TDS meters. They had some from the low end to $150+. Some needed
calibration (the cheaper ones) and some of the more expensive ones were
self calibrating.

What are others using and would you recommend it to another grower?

Good Growing,
Gene



  #5   Report Post  
Old 20-11-2007, 09:47 PM posted to rec.gardens.orchids
external usenet poster
 
First recorded activity by GardenBanter: Aug 2007
Posts: 140
Default TDS Meter

I use two,a PH pen and a EC us/cm (micro siemens) more accurate than TDS ppm
pen,i have had no problems and would recommend.They are also good value and
do the job,i was going to get a Hanna test meter but the expense/replacement
probes put me off.
I got mine from a Ebay store in the UK.The EC meter is the same from this
store=
http://cgi.ebay.co.uk/Digital-Conduc...QQcmdZViewItem
and the PH pen is similar

Hope this helps in deciding .
Thanks Keith


"Pat Brennan" wrote in message
g.com...
Hi Gene,

I use a Hanna 9813 pH/EC/TDS meter ($171 Hummert 2003/2004) and have had
great luck with it. I bought the $25 protective boot and the thing has
lived in the greenhouse for years. It has been dropped, dripped on, and
mistreated but still is a reliable work horse that always seems ready to
go. Before this meter I used the DIST WP4 ($52 Hummert 2003/2004). I was
not happy with this unit and replaced it although it still worked.

Pat


"Gene Schurg" wrote in message
...
Recently, I visited a hydroponic supply brick and mortar store to look
at TDS meters. They had some from the low end to $150+. Some needed
calibration (the cheaper ones) and some of the more expensive ones were
self calibrating.

What are others using and would you recommend it to another grower?

Good Growing,
Gene







  #6   Report Post  
Old 20-11-2007, 09:58 PM posted to rec.gardens.orchids
external usenet poster
 
First recorded activity by GardenBanter: Aug 2007
Posts: 140
Default TDS Meter

Here is a link to a US ebay sellar with the same PH meter & EC meter as i
use, check out their store?
http://cgi.ebay.co.uk/pH-Meter-for-H...QQcmdZViewItem

Keith


"keith kent" wrote in message
...
I use two,a PH pen and a EC us/cm (micro siemens) more accurate than TDS
ppm pen,i have had no problems and would recommend.They are also good value
and do the job,i was going to get a Hanna test meter but the
expense/replacement probes put me off.
I got mine from a Ebay store in the UK.The EC meter is the same from this
store=
http://cgi.ebay.co.uk/Digital-Conduc...QQcmdZViewItem
and the PH pen is similar

Hope this helps in deciding .
Thanks Keith


"Pat Brennan" wrote in message
g.com...
Hi Gene,

I use a Hanna 9813 pH/EC/TDS meter ($171 Hummert 2003/2004) and have had
great luck with it. I bought the $25 protective boot and the thing has
lived in the greenhouse for years. It has been dropped, dripped on, and
mistreated but still is a reliable work horse that always seems ready to
go. Before this meter I used the DIST WP4 ($52 Hummert 2003/2004). I was
not happy with this unit and replaced it although it still worked.

Pat


"Gene Schurg" wrote in message
...
Recently, I visited a hydroponic supply brick and mortar store to look
at TDS meters. They had some from the low end to $150+. Some needed
calibration (the cheaper ones) and some of the more expensive ones were
self calibrating.

What are others using and would you recommend it to another grower?

Good Growing,
Gene









Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
pH/mV/Temp/EC/CF/TDS YM-2006A YM Instrument Co.Ltd. United Kingdom 0 17-06-2008 05:17 PM
pH, EC, TDS & CF Hydroponics YM Instrument Co.,Ltd. United Kingdom 0 14-06-2008 04:05 PM
New Plant Tank Update & RO/GH/TDS Arnim Freshwater Aquaria Plants 7 04-11-2003 09:13 PM
PH meter Checker by Hanna -=Almazick=- Freshwater Aquaria Plants 0 05-10-2003 02:32 AM
Ph Meter Marge United Kingdom 10 24-09-2003 10:42 PM


All times are GMT +1. The time now is 01:43 AM.

Powered by vBulletin® Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2004-2021 GardenBanter.co.uk.
The comments are property of their posters.
 

About Us

"It's about Gardening"

 

Copyright © 2017