Thanks, Trem.  That helps a great deal.  So, as I understand it the
meter senses the temperature, compensates the conductivity reading for
77 Degrees, and reads what the solution would be at 77 degrees
regardless of the solution temp. 

One more question:  when I read the conductivity of my CS during
production, The reading starts out at a peak value, then rapidly drops a
few uS and then steadies out at a lower value.  What is happening, and
which reading is right: the initial higher reading, or the final lower
reading?

Thanks,

Vince 

-----Original Message-----
From: Trem [mailto:t...@silvergen.com] 
Sent: Saturday, October 11, 2003 9:27 AM
To: silver-list@eskimo.com
Subject: CS>Measuring very high ppms

Hi Vince,

The PWT has a temperature compensator.  The s.s. tube on the left side
is
the probe.  So, when calibrating just let it stabilize at whatever
temperature the solution is and then check the meter to make sure it
reads
84.0 uS.  Make sure you wait until the meter stops "hunting".

Here's the calibration info on the bottle label.  You'll see that 84.0
uS is
the reading at 77 F.

°C °F   uS/cm
0   32.0   64
5   41.0   65
10 50.0   67
15 59.0   68
16 60.8   70
17 62.6   71
18 64.4   73
19 66.2   74
20 68.0   76
21 69.8   78
22 71.6   79
23 73.4   81
24 75.2   82
25 77.0   84
26 78.8   86
27 80.6   87
28 82.4   89
29 842   90
30 86.0  92
31 87.8  94

I hope this helps.

Trem




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