Instrukcja obsługi Adwa AD35
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USER MANUAL
AD33 • AD35
Waterproof EC Testers
Dear Customer,
Thank you for choosing an Adwa product.
Please read carefully this manual before start-
ing operations.
These instruments are in compliance with the
EMC Directive 89/336/EEC and Low Voltage
Directive 73/23/EEC for electrical equipments.
For additional technical information, please
e-mail us at .sales@adwainstruments.com
INTRODUCTION
AD33 and are waterproof EC testers. AD35
The housing has been completely sealed against
humidity.
All EC readings are automatically temperature
compensated, and temperature values can be
displayed in °C or °F units.
EC calibration is automatic at one point, while
temperature range is factory calibrated and can
only be adjusted by the user.
The AD33P probe supplied with the meters,
is interchangeable and can be easily replaced
by the user.
The encapsulated temperature sensor allows
fast and accurate temperature measurement
and compensation.
To prolong battery life, these models are pro-
vided with an auto-off feature that turns them
off after 5 minutes of non-use.
Moreover, when batteries become too weak to
ensure reliable readings the meter automatically
turns off.
Each meter is supplied complete with:
• EC probeAD33P
• 4 x 1.5V batteries, button type
• User manual
FRONT PANEL & DISPLAY
1. Dual line LCD
2. ON/OFF / MODE button
3. HOLD button
4. EC probe & temperature sensor
5. Probe body
6. Battery compartment (inside)
7. CAL button
8. Clip holder
1. HOLD indicator
2. Calibration mode indicator
3. Secondary LCD level with measure units
4. Primary LCD level
5. Measurement unit for primary LCD level
ISTAD35 06/17
µS
ELECTRODES & SOLUTIONS
Range
0.0 to 60.0 °C /
32.0 to 140.0 °F
0 to 1999 µS/cm (AD33)
0.0 to 199.9 µS/cm (AD35)
Resolution
0.1 °C / 0.1 °F
1 )µS/cm (AD33
0.1 )µS/cm (AD35
Accuracy
(@ 25 °C / 77 °F)
±0.5 °C / ±1.0 °F
±2 % f.s. (EC)
Calibration EC: automatic, 1 point
Temperature: adjustment
Probe AD33P (included)
Battery Type /
Life
4 x 1.5V button type
Approx. 150 hours of use
Auto-off After 5 minutes of non-use
Environment 0.0 to 50.0 °C
(32.0 to122.0 °F) RH 100 %
Dimensions /
Weight 175.5 x 39 x 23 mm/100 g
AD33P Spare EC probe for
AD33 AD35 and
AD70031P 1413 µS/cm EC standard
solution sachet, 25 x 20 ml
AD7031 1413 µS/cm EC standard
solution, 230 mL bottle
AD7033 84 µS/cm EC standard
solution, 230 mL bottle
TECHNICAL DATA
Turn the meter on
• Press the ON/OFF button. All the used seg-
ments will be visible for one second (or as
long as the button is pressed), then the meter
enter normal measurement mode.
Taking Measurements
• Submerge the probe in the solution to be
tested while stirring it gently.
• The EC value automatically compensated
for temperature is shown on the primary
LCD level while the secondary one shows
the sample temperature.
Note: Before taking any measurement, make
sure the meter has been calibrated.
Freeze the display
• From measurement mode,
press the HOLD button. The
H tag lights up and the read-
ing is frozen on the LCD.
Press any button to return to
normal mode.
Change the temperature unit (°C/°F)
• To change the temperature measure unit,
press the HOLD button for 2 seconds.
Turn the meter off
• From measurement mode, press the ON/OFF
button.
Note: If measurements are taken in different
samples successively, rinse the probe
thoroughly to eliminate cross-contam-
ination. After cleaning, rinse the probe
with some of the sample to be measured.
OPERATIONAL GUIDE
For better accuracy, frequent calibration of the
tester is recommended. In addition, calibra-
tion should be performed whenever the probe
is replaced, after testing aggressive chemicals
and where high accuracy is required.
Calibration Procedure
• From normal measuring
mode, press and hold the
CAL button for 2 seconds
and the CAL message ap-
pears on the LCD.
• Release the button and im-
merse the probe in a proper
calibration solution. The
CAL tag lights up to indicate
that the meter is in calibration
mode.
Note: The calibration solution value must be
within the meter measurement range.
• Wait a few seconds for the reading to
stabilize, then use the CAL and HOLD
buttons to set the solution value (CAL to
increase the value, HOLD to decrease it).
• The calibration will be automatically
performed.
• To conrm the calibration,
press ON/OFF for 2 seconds.
The LCD will show the
“Sto” message and then
return to normal operation.
• To quit the procedure with-
out saving, press the ON/
OFF button. The LCD will
show the “ESC” message and
then return to normal opera-
tion.
TEMPERATURE ADJUSTMENT
These meters are factory calibrated for tempera-
ture readings, and the user can only perform
an adjustment using an accurate reference
thermometer.
Procedure
• From normal measuring
mode, press for 2 seconds
the CAL (rst) and HOLD
buttons until the CAL mes-
sage on the LCD is replaced
by the temperature reading.
• Release the buttons and immerse the probe
and an accurate reference thermometer into
the sample solution.
• Read the temperature measured by the
reference thermometer.
• Wait for a few seconds, for the reading to
stabilize on the tester, then adjust it accord-
ingly with the thermometer, using the CAL
and HOLD buttons (CAL to increase the
value, HOLD to decrease it).
• To conrm pressON/OFF for 2 seconds.
The LCD will show the “Sto” message and
then return to normal operation.
• To quit the procedure without saving, press
the ON/OFF button. The LCD will show the
“ESC” message and then return to normal
operation.
When the batteries become too
weak to ensure reliable read-
ings, the “Eb” message appears
on the LCD, then the meter
turns off.
Batteries must be replaced.
Unscrew and release the probe body. Take out
the battery compartment and carefully replace
all four batteries while paying attention to their
polarity.
Reattach and tighten the probe body properly
to ensure a watertight seal.
BATTERY REPLACEMENT
PROBE REPLACEMENT
The probe can be easily replaced by unscrewing
the body as shown below.
EC CALIBRATION
Specyfikacje produktu
| Marka: | Adwa |
| Kategoria: | miary |
| Model: | AD35 |
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