Some times the Aquapal can over titrate; this is not normally an indication of a fault, only if it continuously over-titrates. The purpose of this test is to establish if leaving the instrument on for a day and only injecting Hydranal water standards, does the instrument become unstable and keep going into excess drift, so lets go through the test.
1. With a clean cell and new reagent run the APIII for a day occasionally injecting Hydranal water standards, monitor and record the drift.
DO NOT INJECT your sample, the reason for doing this is to see if a component in the electronics is breaking down after the instrument has been turned on for a period of time.
2. If the Aquapal goes into over-titrating just add a Hydranal water standard to bring it out of over-titration. (If the instrument is stable after a day running water standards, this would indicate the instrument and glassware is okay and the problem lies elsewhere.)
3. When did the Problem start:
During a run of test or after charging with new reagent.
Reagent
■ recently switched to a different reagent?
■ Old reagent?
HYDRANAL Water Standard Test
● Draw up more than 2ml
● Push out air
● Weigh syringe
● Type weight in
● Inject 1ml into glassware (hit start while injecting)
● Re-weigh
● Run for awhile.. it asks you to enter new weight..
● Enter new weight
● Print out results
.1 + 10ppm
1.0 + 30ppm
Repeat three more times
Kyoto Electronics Manufacturing
MKC 520 D
This model includes a generally used 2-component electrolytic cell (Diaphragm cell).
KEM Karl Fischer Moisture Titrator MKC-610
Direct operations and maneuverability is now made possible with Touch screen LCD
BASIC KARL FISCHER TITARATION TO FULL FEATURED TITRATION WITH AUTOSAMPLING AND MORE
QUOTATIONS AND PRICING ARE AVAILABLE FOR THE CSC AQUAPAL IN THE WEBSTORE. QUOTATIONS FOR KEM TITRATORS ARE NOT CURRENTLY AVAILABLE IN OUR WEBSTORE BECAUSE OF THE CUSTOMIZED NATURE OF THESE INSTRUMENTS. FOR GENERAL INFORMATION CLICK THE LINK BELOW.
TO SPEAK WITH A PRODUCT SPECIALIST, CALL (804) 318-3686, OR EMAIL YOUR QUESTION IN THE SPACE PROVIDED. TO REQUEST A SCHEDULED CALL BACK, INCLUDE DAY AND TIME OF DAY TO CALL.
NAME
LOCATION ZIPCODE
CALL BACK DATE
COMPANY
TELEPHONE
TIME (USE LOCAL TIME)
0.5% -5.0%
KF Volumetric OR Coulametric
1.0% and less
KF Coulametric
Fritted Cell-Diaphragm (Frit) separates anode from cathode to prevent iodine from being reduced back to iodide at the cathode
Fritless Cell-Design eliminate the need for a diaphragm
Uses one reagent which results in lower reagent cost
Titration Cell easier to clean
Long term drift value more stable
Refilling of electrolyte suitable for automation
TheSECONDconsideration has to do with the sample type
Liquid Sample Direct Method
Solid Sample Dissolvable Direct Method
Powder Sample Dissolvable Direct Method
Solid Sample Non Dissolvable Evaporator Oven Method (Recommended) / Homogenizer
Powder Sample Non Dissolvable Evaporator Oven Method (Recommended) / Homogenizer
TheLAST, and most difficult consideration simply has to do with budgetary and time constraints. Depending on the number of tests run in a day, autosampling features, and advanced software and electronic capabilities, can reduce operator time and increase
The FIRST consideration in selecting the right Karl Fischer Titrator, is to identify the target moisture range.
