Lovibond SD 50 pH User manual

SD 50
pH
Lock/Unlock Data!
C. Select pH/mV
D. Backlight ON/OFF
____________________________________________________________________________________________
Note: Icons/Characters in RED meaning "BLINK"
: Hit once / : Press and hold / : Release
3
F. Store Data
1. In lock mode: 2s
2. In measurement mode: 2s (or 2s )
3. When the storage is full, it will overwrite the oldest data.
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G. System Setup
Menu selection:
2s (latest memory#)
(7.00 or 6.86) (dd-mm-yy/24hr or mm-dd-yy/12hr) (°C or °F)
(31-12 24 or 12-31 12ampm) .....
To enter:
!
F. pH Buffer 7.00 -> 4.00 -> 10.00
MEASUREMENT
pH CALIBRATION
Immerse the probe
into pH7 buffer
solution. Exit here for one
point calibration
Exit here for two
point calibration
or go for second point calibration as follows:
or go for third point calibration as follows:
wait
wait
wait
Clean the probe first,
then immerse into pH4
buffer solution.
Clean the probe first,
then immerse into
pH10 buffer solution.
(4) (7) (10)
on the Display
Remove protective cap from the probe
E. Store Data
Three point calibration
finished.
L M H
Low, Middle, High
Press
Press for
3 seconds
Insert the batteries
unlock
off
off
pH
unlock
off
Automatically turns off after 8 minutes of
inactivity.
Possible slight delay after pressing
before freeze of the data (!).
Mode „mV“ does not show ORP on the display,
only milivolts.
to switch, unfreeze data (see B).
After 3 sec. the file no. temporarily appears
on the display, e.g. 02.
Once the storage has reached max. capacity,
the data will overwrite the oldest files.
off
pH
lock
on
on
mV
• Re-Calibrate according to individual recommendations! Rinse the electrode with destilled water after each measurement.
• Choose Lovibond Standard Solutions or produce them with buffer tablets according to the kit manual (see backside).
Remove protective cap from the probe.
Power ON (see A)
GB
Characters in RED represent „Flashing symbols“.
4 5 6
+
+
+
1 2 3
+
-
--
-
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V. Set Data/Time display type
VI. Electrode Replacement
SETUP
I. Recall Data
II. Select Buffer System
III. Set Date and Time
IV. Set Temperature system (°C/°F)
Recall Data
go to l.
Set Temperature
go to lV.
Select Buffer System
go to ll.
Set Data/Time display
type go to V.
Set Date and Time
go to lll.
To enter.
1x
4x
3x
2x
3 sec
3 sec
3 sec
3 sec
3 sec
3 sec
3 sec
3 sec
3 sec
Minutes
Minutes
24 h
AM
PM
Hours
Hours
Year
Year
Month
Day
Day
Month
pH Buffer
Order Codes
721250 pH buffer-set 4.00/7.00/10.00 (25°C)
721252 pH buffer 4.00 (25°C) 1 litre
721254 pH buffer 7.00 (25°C) 1 litre
721256 pH buffer 10.00 (25°C) 1 litre
515600 Buffer tablets pH 10 100 pc.
515601 Buffer tablets pH 10 250 pc.
515610 Buffer tablets pH 7 100 pc.
515611 Buffer tablets pH 7 250 pc.
515620 Buffer tablets pH 4 100 pc.
515621 Buffer tablets pH 4 250 pc.
Accessories
1950017 Battery CR 2032 (2 Batteries required)
194820 pH replacement electrode
384801 Beaker, 100 ml
Preparation of buffer solution
1. FilI a clean beaker with 20 ml deionised/
distilled water.
2. Add one buffer tablet of the required pH-
value and shake or crush with a clean
stirring rod until the tablet disintegrates.
3. Allow to stand for about two minutes
to ensure that the buffer is completely
dissolved and to allow any insoluble
particles to settle.
4. Immerse the electrode into the beaker
and calibrate the SD 50 in accordance
with this instruction manual.
5. Remove the electrode and rinse it tho-
roughly.
6. Use the buffer solution only once.
Note
It is important to rinse the
electrode before immerse in
a buffer solution of a different
value.
Accuracy
Fresh buffer solutions should
always be made up in dei-
onised/distilled water. The
maximum tolerance based
on the pH values 4, 7 and 10
is ±0.05 pH.
Warranty
The waterproof SD 50 is war-
ranted to be free from manu-
facturing defects for 2 years
and electrode (probe) modul
for 6 months.
G. System Setup
Unfreeze data first (see frontside B) before Menu selection.
Delete stored data.
Automatic Exit
Select V. `Set Data/ Time display type‘ first.
to increase (+);
new electrode
No.: 00386910
to decrease (-)
Adjustment:
1x
2x
3x
4x
Press for
further files. Exit
Exit
Exit
Exit
Exit
Exit
°C °C
select select
°F
123
4 5 6
Content
1 pH Meter SD 50 in a robust
plastic case with strap
2 Batteries
10 pH 4 Buffer tablets (1 strip)
10 pH 7 Buffer tablets (1 strip)
10 pH 10 Buffer tablets (1 strip)
1 Lenyard
1 Instruction Manual
Instruction manuals available in further languages, visit www.lovibond.com
SD 50 pH Specications/Features
am/pm
12 hour clock
or 24 hour
clock
am/pm 12 hour clock
24 hour clock
Characters in RED represent „Flashing symbols“.
www.ssb-berlin.de