Hi Ken, I was going to say they always include a calibration slip signed by a technician in every box because that's exactly what they used to do. It was a small blue cardboard form with the temperature, uS reading, date and the technician's initials. But before I posted this I looked into half a dozen PWT boxes and guess what....you're right. Apparently they don't put one of them in any more. I haven't seen one for some time since I don't open the boxes and check them before shipment. I have 3 PWT's in use all the time to average our calibration setup. They were put into service several years ago and I assumed nothing had changed. Wrong.........
I guess this is like everything else that's been shrunk over the years.... the pound of coffee is now down to as low as 10 ounces and the nickel candy bar is now 89 cents. I suppose in this case they want to save money and labor is the only place they can cut corners. Of course that's why they sell calibration solution. And I've been told by the tech department that the factory recommends calibrating the unit when first received by the customer and every few months after that or whenever they think the unit isn't reading correctly. So, I pass that caveat on to people that order them and they usually buy the solution. Regards, Trem www.silvergen.com ----- Original Message ----- From: "Ode Coyote" <[email protected]> To: <[email protected]> Sent: Saturday, June 07, 2003 8:39 AM Subject: Re: CS>cheap ppm tester I've looked and looked at the Hanna material and can't find word one of reference to factory calibration much less the method used. Am I being blind? [Not impossible!!!..which is why I ask the next question] Can anyone find it? -- The silver-list is a moderated forum for discussion of colloidal silver. Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
