Sorry, I should have given more detail.

Cole Parmer Hand Held Digital Vacuum guage (0-1500 mbar  +/- 0.3% full scale)
Pg. 788 in the 97/98 Cole Parmer catalogue.
Cat No. E-68980-00    $960 USD
tel: 1-800-323-4340

The optional extension cable is not needed. But, you also need to order the "glass adapter"  68980-64 ($55 USD)  which needs to be turned down on a lathe to fit, say, a 9mm Utorr fitting. This we attach on a "tee" on the vacuum line.  As I said, its a nice compact and reliable design.

Len

-----Original Message-----
From:	Jeffrey M. Welker [SMTP:[log in to unmask]]
Sent:	Monday, March 24, 1997 10:02 AM
To:	isogeochem
Subject:	RE: manometer source question


Len, do you have a phone number for Cole Palmer as we are in need of a 
manometer as well.
Thanks
Jeff Welker
Univ of Wyoming
[log in to unmask]
 ----------
From: isogeochem
To: [log in to unmask]
Subject: manometer source question
Date: Saturday, March 22, 1997 8:59AM

<[log in to unmask]  
doe
e.ca>
X-Listprocessor-version: 8.0 -- ListProcessor(tm) by CREN


Howie,

Cole Parmer has a really slick compact vacuum manometer (0-1400 mb)
for about $900USD. It can be attached  to a line with UltraTorr
fittings. It runs on a rechargeable battery so there are no cables
hanging everywhere. We've had one for about 4 years with no troubles.

Len

 ----------
From:  Howie Spero[SMTP:[log in to unmask]]
Sent:  Friday, March 21, 1997 5:59 PM
To:  [log in to unmask]
Subject:  reference material and manometer source question

To Whomever can help:


 I've got a couple of quick questions.

 First, can anyone tell me what the current accepted values are for
the NIST nitrogen isotope stds N2 and N3? If you have a reference,
that
would really help.

 Second question. I am looking for a good digital manometer to
attach to a vacuum extraction line. We want to be able to calibrate
the
manometer to calculate gas yields off samples. Can anyone recommend a
manufacturer and transducer/gauge assembly that has provided them with
good
service through the years?
 Thanks for you help.

Howie Spero

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