ProMinent DULCOTEST DT1B Operating Manual
Operating manual
A0943
DULCOTEST® DT1B
Photometer
EN
Please carefully read these operating instructions before use. · Do not discard.
The operator shall be liable for any damage caused by installation or operating errors.
The latest version of the operating instructions are available on our homepage.
Target group: instructed personnelPart number 985629 BA DT 057 03/17 EN
Supplemental directives
General non-discriminatory approach In order to make it easier to read, this
document uses the male form in
grammatical structures but with an
implied neutral sense. It is aimed
equally at both men and women. We
kindly ask female readers for their
understanding in this simplification of
the text.
Supplementary information
Please read the supplementary information in its entirety.
Information
This provides important information relating to the correct operation of the
unit or is intended to make your work easier.
Warning information
Warning information include detailed descriptions of the hazardous situation.
The following symbols are used to highlight instructions, links, lists, results and
other elements in this document:
More symbols
Symbol Description
Action, step by step.
⇨ Outcome of an action.
Links to elements or sections of these instructions or other
applicable documents.
n
List without set order.
2
Symbol Description
Supplemental directives
[Button]
„Display /
GUI“
CODE
Display element (e.g. indicators).
Operating element (e.g. button, switch).
Screen elements (e.g. buttons, assignment of function keys).
Presentation of software elements and/or texts.
3
Table of contents
Table of contents
1 General Information................................................................................... 5
1.1 Scope of delivery............................................................................... 6
1.2 Instructions for use............................................................................ 8
1.3 Adapter for 16 mm cuvettes............................................................. 11
1.4 Operations carried out on the device............................................... 12
2 Commissioning DT 1B............................................................................. 13
2.1 Commissioning................................................................................ 13
3 Operating Menu....................................................................................... 17
3.1 Operating Menu Options.................................................................. 17
3.2 Operating instructions...................................................................... 18
3.3 Error messages............................................................................... 18
4 Analysis methods..................................................................................... 20
4.1 Procedure instructions when using liquid reagents......................... 20
4.2 Quantitative determination using liquid reagents............................. 22
4.3 Procedure instructions when using tablets...................................... 29
4.4 Quantitative determination using tablets.......................................... 31
5 Calibration ............................................................................................... 44
6 Technical Data......................................................................................... 47
7 Consumables and Spare Parts................................................................ 49
8 Standards Complied with and Declaration of Conformity........................ 50
9 Index........................................................................................................ 51
4
1 General Information
WARNING!
Danger from hazardous sub‐
stances!
Possible consequence: Fatal or
very serious injuries.
Please ensure when handling
hazardous substances that you
have read the latest safety data
sheets provided by the manu‐
facture of the hazardous sub‐
stance. The actions required
are described in the safety data
sheet. Check the safety data
sheet regularly and replace, if
necessary, as the hazard
potential of a substance can be
re-evaluated at any time based
on new findings.
The system operator is respon‐
sible for ensuring that these
safety data sheets are available
and that they are kept up to
date, as well as for producing
an associated hazard assess‐
ment for the workstations
affected.
General Information
5
General Information
1.1 Scope of delivery
The following components are included as standard:
Description Quan‐
tity
n Case, blue with blue fasteners
– with ProMinent sticker, Photometer Dulcotest DT1B, code
1039315
– and hazard symbol
Foam insert for the case 1
Cover foam for the case 1
n Photometer DT1B
– Chlorine, bromine, chlorine dioxide, ozone, pH, CyA
– Battery compartment lid with O-ring
Screwdriver with clip, red 1
Countersunk screws 4
Batteries, 1.5 V alkali-manganese, type AA 4
Round cuvettes, 10 ml, d = 24 mm, h = 48 mm 3
Lid for round cuvette, 24 mm, grey 3
Sealing rings for cuvettes, grey 3
Round cuvettes, d = 16 mm, h = 90 mm 3
Lid for round cuvette, 16 mm, white 3
Adapter attachment, grey for 16 mm cuvettes 1
1
1
Syringe, 10 ml 1
Plastic mixing rod, 13 cm long 1
Cleaning brush 1
Operating instructions for Dulcotest DT1B 1
DPD -1 tablets 100
6
General Information
Description Quan‐
tity
DPD -3 tablets 100
PHENOLRED PHOTOMETER tablets 100
CyA TEST tablets 100
CHLORINE HR (KI) tablets 100
ACIDIFYING GP tablets 100
Glycine tablets 20
7
General Information
1.2 Instructions for use
–
Request the safety data sheets.
–
Reagents are intended for chemical analysis and access to them by
unauthorised persons must not be permitted.
–
You must dispose of reagent solutions properly.
–
Observe the application possibilities, analysis instruction and matrix
effects of the methods.
1. You must thoroughly clean the cuvettes, lids and stirring rod after each
analysis to avoid carry-over errors.
Even slight reagent residue can lead to incorrect measurement results.
For cleaning use the supplied brush.
If the fully reacted water sample is left for any length of time it may pro‐
duce stubborn coloured deposits, which you can remove using dilute (=
4 %) hydrochloric acid.
2. The outer walls of the cuvettes must be clean and dry before the analysis
is carried out. Fingerprints or water droplets on the light-entry surfaces of
the cuvette will result in faulty measurements. The cuvette should there‐
fore be wiped clean with a soft paper tissue (paper handkerchief) before
carrying out the measurement.
3. The zero correction and the analysis must both be carried out using the
same cuvette, as the cuvettes may have slightly varying tolerances.
8
A0937
General Information
Fig. 1: Cuvette positioning (Ø 24 mm):
I. Seal
II. Marking with the white triangle
4. For the zero correction and test, the cuvette must be positioned in the
sample chamber in such a way that the marking with the white triangle (II.)
points towards the housing marking.
5. You must carry out the zero correction and test with the cuvette lid closed.
You must provide the cuvette lid with a sealing ring (I.) to prevent the
entrance of light into the sample chamber.
6. Formation of bubbles on the inside walls of the cuvette will result in faulty
measurements. Should this happen, seal the cuvette with the cuvette lid
and tip it back and forth to dissolve/remove the bubbles before carrying
out the test.
9
A0938
General Information
7. It is important to prevent water getting into the sample chamber because
this leads to incorrect measurement results.
8. Dirt in the transparent sample chamber leads to incorrect measurement
results. The light entry surfaces should be checked at regular intervals and
cleaned as necessary.
Standard spectacle cleaning cloths and cotton buds are suitable for
cleaning.
9. Pronounced differences in temperature between the photometer and the
surroundings can lead to incorrect measurements, e.g. due to the forma‐
tion of condensation in the sample chamber and on the cuvette.
10. Protect the device from direct sunlight.
Fig. 2: Correct filling of the cuvette: Left = correct / right = incorrect
11. Fill the cuvette as shown in Fig. 2.
12. Insert the reagent tablets directly from the blister pack into the water
sample, without touching them with your fingers.
13. After use immediately close the dropping bottles containing the liquid
reagents by closing them with the screw caps of the same colour.
14. You must observe the sequence for the addition of reagents without fail.
10
1.3 Adapter for 16 mm cuvettes
A0941
General Information
Fig. 3: Place the adapter for 16 mm cuvettes on the sample chamber
Insert the adapter for the 16 mm cuvette as shown in Fig. 3.
This adapter is required for all analysis methods which must be carried out using
a 16 mm cuvette.
11
A0939
General Information
1.4 Operations carried out on the device
Battery replacement:
To ensure complete leak-tightness of the photometer, you must insert the
gasket (2) and screw on the battery compartment lid (1).
If the battery is removed for more than 1 minute from the device, then
when the device is switched on again with new inserted batteries, the
date/time program appears automatically.
Fig. 4: Battery replacement
1. Battery compartment cover
2. Seal
3. Screw
4. Batteries
5. Rear of the device
12
2 Commissioning DT 1B
2.1 Commissioning
Switching on and zero correction
Scroll memory (SM)
With multi-parameter devices
the sequence of the various
methods is specified. After
switching on the device, the
method which was last selected
before the device was switched
off is automatically displayed.
This permits rapid access to a
favoured method.
1. Switch the device on using the
[ON/OFF]
ð
2. Select the
[MODE]
ð
Zero correction
3. Fill the cuvette up to the 10-ml
marking with the water sample,
see Fig. 2
4. Close the cuvette using the cuv‐
ette lid
5. Position the cuvette in the
sample chamber
ð
6. Press the key
key
The display outputs: The
last selected
key
The display outputs:
[METHOD]
Observe the correct posi‐
tioning of the cuvette.
[METHOD]
[METHOD]
.
using the
[ZERO/TEST]
.
Commissioning DT 1B
[METHOD]
ð
approximately 8 seconds.
[0.0.0]
play.
7. Remove the cuvette from the
sample chamber
Zero correction is ended.
ð
Analysis
8. Fill the cuvette up to the 10-ml
marking with the water sample,
see Fig. 2
9. Add reagents to the water
sample
The characteristic colouring
ð
develops.
10. Close the cuvette using the cuv‐
ette lid
11. Position the cuvette in the
sample chamber
12. Press the
so doing adhere to any possibly
required reaction time, see
flashes for
appears in the dis‐
[ZERO/TEST]
key, in
Ä „
Switching the countdown func‐
tion on“ on page 14
[METHOD]
ð
approximately 3 seconds.
The result is output to the
display.
flashes for
13
Commissioning DT 1B
Switching the countdown function on
The result is automat‐
ically saved.
Repeating the analysis
Press the key
again
The process runs as
ð
described here
[ZERO/TEST]
on and zero correc‐
tion“ on page 13
New zero correction
Press the key
2 seconds
The process runs as
ð
described here
[ZERO/TEST]
on and zero correc‐
tion“ on page 13
Ä „Switching
.
for
Ä „Switching
.
NOTICE!
If reaction times are not
observed, the result may be
incorrect measurement results.
The countdown can only be
activated directly prior to a
measurement.
The countdown time equals 2
minutes and is non-adjustable.
The currently running count‐
down can be ended by
pressing the key [ZERO/TEST].
The measurement then takes
place immediately.
For methods with a reaction time, you
can optionally switch on a countdown
function:
1. Press the key
the key depressed
[!]
and then keep
2. Press the key
3. Release the
The countdown starts After
ð
the countdown has elapsed
(2 minutes), measurement
takes place automatically
[ZERO/TEST]
[!]
key
14
Displaying stored data
The device has a ring buffer for 16 data records.
Fig. 5: Displaying stored data
1. Data record (n01 ... n16)
2. Year
3. Month/day
4. Time
5. Measured variable (e.g. chlorine,
dependent upon the device ver‐
sion)
6. Value in mg/l
Commissioning DT 1B
1. With the device switched on press the
[!]
key for more than 4 seconds then
release the key again
The display immediately switches to the memory menu.
ð
2. Press the
3. Press the
4. Press the
15
[MODE]
[ZERO/TEST]
[!]
key to scroll through the 16 data records
key to scroll through the values of a data record
key to return to the
[METHOD]
display
Commissioning DT 1B
Display background lighting
Press the
ð
[!]
key
The display's background lighting switches on or off.
During measuring the background lighting switches off automati‐
cally.
16
3 Operating Menu
3.1 Operating Menu Options
Operating menu selection
1. The device is switched off.
Press and hold down the
[MODE]
2. Use the
on the device
ð
3. Release the
4. The [!] key allows you to select
the following operating menu
items:
n
n Set date and time
n User adjustment
ð
5. Use the
date and time“
item (arrow at top right and
bottom left in the display)
key
[ON/OFF]
3 decimal points appear in
the display.
[diS]
= read out of stored
data
The selected operating
menu item is indicated by an
arrow in the display.
[!]
key to select the
key to switch
[MODE]
key
operating menu
„Set
Operating Menu
Setting date and time (24-hour
format)
Increase the value to be set by
pressing the [MODE] key.
Lower the value to be set by
pressing the [ZERO/TEST] key.
Pressing the [!] key takes you
to the next value to be set.
1. Press the
ð
2. Enter the year
3. Enter the month
4. Enter the day
5. Enter the hour
6. Enter the minutes
Enter the minutes in 10 minute
increments
Press the
Enter minutes in 1 minute incre‐
ments
7. After setting the minutes, press
the
ð
[MODE]
The parameter to be set
appears for 2 seconds.
key
[YYYY]
[MM]
[dd]
[hh]
[mm]
.
[!]
key
[!]
key
[IS SET]
play and the device auto‐
matically returns to meas‐
uring mode.
appears in the dis‐
17
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