PrimeLab 1.0 MULTITEST User Manual page 304

Urea (HR)
(150)
Continued...
10) Crush the tablet with a clean stirrer until it is completely dissolved.
11) Add a "Ammonia N° 2 Photometer" tablet to the water sample in the
cuvette.
12) Crush the tablet with a clean stirrer until it is completely dissolved.
13) Replace the lid on the cuvette, swivel it carefully and insert it in the
sampling chamber of the PrimeLab. Align the arrow on the front of the
4
cuvette. Press TEST.
14) After the lapse of a 10 minute countdown the determined result is
displayed. Press button 4 to save the test result together with date and
4
time on the device.
!
Assessment of the measurement value relative to the ideal range defined by you.
Measurement value for this parameter is outside the value range of this method.
Note(s)
-> Ammonia N° 1 tablet only dissolves entirely after Ammonia N° 2 tablet
was added.
-> Samples with concentrations above 2 mg/l Urea may lead to results in
between the measurement range. If so, please dilute sample with Urea
free water and re-do the test.
-> Ammonia and chloramines will be detected together. The result displayed
will show the sum of both.
-> Temperature of the sample needs to be between 20°C and 30°C.
-> Test needs to be carried out not later than 1 hour after taking the sample.
-> If sea water is tested, sample needs to be pre-treated with special
conditioning powder before Ammonia N° 1 Photometer tablet is added.
-> Do not store PL Urea 1 below 10°C as it might granulate.
-> PL Urea 2 needs to be stored between 4°C and 8°C.
271
0.2 - 5.0 mg/l
Name on device: 150-UreaHR-tab-liq
Possible messages in the line below the measurement value:
"low! / high! / good!":
"Overrange! / underrange!":
((NH ) CO)
2 2
Tablet Liquid
+Liquid
271