ProMinent DULCOTEST DT1B Operating Manual page 36

Analysis methods
19. Switch the countdown on, see
Ä „ Switching the countdown
function on" on page 14 . To do
this, press the
[ZERO/TEST] key
ð Wait for the 2 minutes reac‐
tion time to elapse
20. The METHOD symbol flashes
for approximately 3 seconds
ð The result in mg/l of Total
chlorine = display value
appears in the display.
21. Calculation:
Ozone (mg/l) = (Display
n
[A] minus display
value
[G] ) x 0.67
value
Measuring tolerances when
determining the chlorine con‐
tent:
0 ... 1 mg/l: ± 0.05 mg/l
–
> 1 ... 2 mg/l: ± 0.10 mg/l
–
> 2 ... 3 mg/l: ± 0.20 mg/l
–
> 3 ... 4 mg/l: ± 0.30 mg/l
–
> 4 ... 6 mg/l: ± 0.40 mg/l
–
36
[!] and
[G]
Chlorine HR with tablet 5 ... 200 mg/l
For the analysis method
with tablet 5 ... 200 mg/l" the adapter
contained in the scope of supply is
Ä Chapter 1.3 „Adapter
required, see
for 16 mm cuvettes" on page 11 .
1. Insert the adapter for the 16 mm
round cuvette in the device, see
Ä Chapter 1.3 „Adapter for 16
mm cuvettes" on page 11
2. In a 16 mm cuvette add an 8 ml
water sample and carry out a
zero correction, see
Ä „Switching on and zero cor‐
rection" on page 13
[CHLORINE HR (KI)]
3. Insert a
tablet and an
tablet directly from the foil into
the water sample and crush the
tablets using a stirring rod
4. Close the cuvette with the cuv‐
ette lid and mix the contents by
tipping back and forth until the
tablet has dissolved
5. Position the cuvette in the
sample chamber
ð Observe the correct posi‐
tioning of the cuvette.
6. Press the key
[METHOD] flashes for
ð
approximately 3 seconds.
The result in mg/l of chlorine
appears in the display.
„Chlor HR
[ACIDIFYING-GP]
[ZERO/TEST]