ADWA AD 130 User manual
AD 130
pH/mV/Temperature
PortableMeter
USERMANUAL
www.adwainstruments.com
MANAD130R2 05/09
ADWA HUNGARY Kft.
Alsókikötõ sor 11, 6726 Szeged, Hungary
Tel.+3662317878
Fax+3662550610
www.adwainstruments.com
Dear Customer,
Thank you for choosing an Adwa product.
Please read carefully this manual before starting
operations.
Thisinstrument isincompliance withtheEMC Directive
89/336/EEC and Low Voltage Directive 73/23/EEC for
electrical equipments.
For additional technical information, please e-mail us at
3
TABLE OF CONTENTS
Introduction ............................................................... 4
Technical Data .......................................................... 5
Front and Top Panels ................................................ 8
OperationalGuide ................................................... 10
Hold and Memory Recall Functions ....................... 16
pHCalibration ......................................................... 17
Setup Menu............................................................. 23
Battery Replacement .............................................. 25
LCD Message Guide .............................................. 27
pH Electrode Conditioning & Maintenance ............ 29
Electrodes, Probes and Solutions ............................ 31
TroubleshootingGuide............................................. 32
Warranty ................................................................. 34
34
WARRANTY
Adwa warrants this product to be free of defects in
material and workmanship as stated in the operating
manual. If repair or adjustment is necessary and has not
been the result of abuse, misuse or improper handling
within the warranty period, please contact your dealer
or the nearestAdwa Office for the RGA(Return Goods
Authorization) number to put on the outside of your
package.Warrantedservicewill bemade withoutcharge.
Themeteris warrantedfor aperiodof 3years, while
probes are warranted for 6 months. The warranty
period commences from the original date of sale.
Warranty is only valid when the product is used under
normal conditions and in accordance with the instruc-
tionmanual.
The warranty is void if the instrument is repaired or ser-
viced by unauthorized personnel, not used in accor-
dance to the instructions, or if non-Adwa accessories
such as buffer solutions, probes, etc. are used in con-
junction with the meter. Adwa will not be held respon-
sible for any accident whether directly or indirectly,
caused by the use of this instrument.
4
INTRODUCTION
AD130 is a heavy-duty portable pH meter designed to
providelaboratory resultsand accuracy evenunder harsh
industrialconditions.
Main features include:
• 7memorized buffersforpH calibration (pH1.68,4.01,
6.86, 7.01, 9.18, 10.01 and 12.45)
• Messages on the LCD to make the calibration easy
and accurate
• pH readings with manual or automatic temperature
compensation
• pH calibration using pH buffers with 0.01 resolution
• Temperature range from -20 to 120°C (-4 to 248°F)
using AD5006 probe
AD130 can also use ORP electrodes to measure mV,
with a resolution up to 0.1 mV.
SYMPTOM
Display shows
blinking battery
symbol.
Meter does not
workwith
temperature probe.
Meter fails to
calibrate or gives
faulty readings.
"WRONGCAL"is
displayed during
pH calibration
procedure.
Meter shuts off.
"Er0,Er1,Er2"
message at start
up.
"Clr" message at
start up.
PROBLEM
Low battery
level.
Broken
temperature probe.
BrokenpH
electrode.
Wrong or
contaminated
buffer.
Dead batteries or
auto-off feature is
enable (in this case,
meter shuts off
after 20 minutes of
non-use).
EEPROMerror.
Loaded default pH
calibration values.
SOLUTION
Change batteries.
Replace the
temperature probe.
Replace electrode.
Check that buffer
solution is correct
and fresh.
Change batteries
or press ON/OFF.
Contact your
dealeroranyAdwa
service center.
PerformpH
calibration.
5
AD130 is supplied complete with:
•AD2005B/1 pH electrode with Epoxy body, tip pro-
tection bottle, BNC connector and 1 m cable
•AD5006 stainless steel temperature probe, 1 m cable
• pH4.01, pH7.01 andpH10.01 buffers(100 mlbottle)
• Electroderinsing solution,100 mlbottle
• Holders for pH electrode and temperature probe
• 1.5VAA alkaline batteries (4 pcs)
• User manual
•Rugged carrying case
32
TROUBLESHOOTING GUIDE
SYMPTOM
Slow response/
excessive drift.
Reading
fluctuate up and
down (noise).
The display
shows blinking
full scale value.
mV scale out
of range.
Display shows
blinking°Cor°F.
PROBLEM
Dirty pH electrode.
Clogged/dirty
junction.
Reading out of
range.
Drymembraneor
dry junction.
Temperature probe
is not connected or
out of order.
SOLUTION
Soak the electrode
tipinAD6050
solution for 30
minutes and then
follow the storage
procedure.
Clean the electrode.
Check that sample
is within measurable
range. Check
electrolyte level and
general electrode
status.
Soak electrode in
AD6060 storage
solution for at least
30minutes.
Connect or replace
temperature probe.
6
TECHNICAL DATA
Range -2.00 to 16.00 pH
±1999 mV
-20.0 to 120.0°C (-4.0 to 248.0°F)
Resolution 0.01 pH
0.1 mV (±699.9 mV) / 1 mV (outside)
0.1°C (0.1°F)
Accuracy ±0.01 pH
(@20°C/68°F) ±0.2 mV up to ±699.9 mV
±1 mV (outside)
±0.4 °C (±0.8°F) (excluding probe error)
pH Calibration 1 or 2 point calibration,
7 standard buffers available
(pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45)
Temperature Manual or automatic,
Compensation -20.0 to 120.0°C (-4.0 to 248.0°F)
pH Electrode AD2005B/1
Temperature Probe AD5006
Input Impedance 1012 Ohm
Battery Type 4x1.5VAAsize, alkaline
Battery Life Approx. 500 hours of continuous use
Auto-off User selectable: 20 minutes or disabled
ELECTRODES, PROBES AND SOLUTIONS
AD2005B/1 pH electrode with Epoxy body, tip pro-
tection bottle, BNC connector and 1 m
cable
AD2015B/1 ORPelectrodewith Epoxybody,tip pro-
tection bottle, BNC connector and 1 m
cable
AD5006 Stainless steel temperature probe with
1 m cable.
AD6004B pH 4.01 buffer, 20 ml sachet, 25 pcs
AD6004-100 pH 4.01 buffer, 100 ml bottle
AD6007B pH 7.01 buffer, 20 ml sachet, 25 pcs
AD6007-100 pH 7.01 buffer, 100 ml bottle
AD6010B pH 10.01 buffer, 20 ml sachet, 25 pcs
AD6010-100 pH 10.01 buffer, 100 ml bottle
AD6060-100 Electrodestorage solution, 100mlbottle
AD6050B Electroderinsing solution, 20 mlsachet,
25 pcs
AD6050-100 Electroderinsing solution,100ml bottle
AD9315 Electrode holder
7
Environment 0 to 50 °C (32 to 122 °F)
RH max. 95%
Dimensions 188 x 96 x 70 mm
Weight 460 g
30
PERIODIC MAINTENANCE
Inspect electrode and cable. The cable used for con-
nection to the meter must be intact and there must be no
points of broken insulation on the cable or cracks on the
electrode stem or bulb. If any scratches or cracks are
present, replace the electrode.
Rinse off any salt deposits with water.
Connectors must be perfectly clean and dry.
CLEANING PROCEDURE
Soak the electrode tip in AD6050 cleaning solution for
approximately 30 minutes.
IMPORTANT:After performing a cleaning procedure,
rinse the electrode thoroughly with distilled water and
soak it in AD6060 storage solution for at least 1 hour
before taking measurements.
8
FRONT AND TOP PANELS pH ELECTRODE
CONDITIONING & MAINTENANCE
PREPARATION PROCEDURE
Remove the electrode tip protection bottle.
DO NOT BE ALARMED IF SALT DEPOSITS ARE
PRESENT.This is normal with electrodes and they will
disappear when rinsed with water.
During transport, tiny bubbles of air may form inside the
glass bulb. The electrode cannot function properly un-
der these conditions. These bubbles can be removed by
shaking down the electrode as you would do with a glass
thermometer.
If the bulb and/or junction are dry, soak the electrode in
AD6060 storage solution for at least one hour.
STORAGE PROCEDURE
To minimize clogging and ensure a quick response time,
the glass bulb and the junction should always be kept
moist.
When not in use, store the electrode with AD6060 stor-
age solution in the tip protection bottle.
NEVER USE DISTILLED OR DEIONIZED WATER
TO STORE THE ELECTRODE.
9
1. Temperature probe socket
2. Liquid Crystal Display (LCD)
3. ON/OFF key, to turn the meter ON and OFF
4. HOLD/CLR key, to freeze reading on display and
store it in the instrument memory, or to clear cali-
bration
5. CFM/SETUP key, to confirm calibration or enter
setup mode
6. MRCL key, to recall stored value
7. Up & Down arrow keys, for manual temperature
setting, entering menu parameters or changing
buffer value
8. CAL key, to enter/exit calibration mode
9. RANGE key, to select pH or mV reading
10. Secondarydisplay
11. Primarydisplay
12. BNC connector for pH or ORP electrodes
28
TEMPERATURE COMPENSATION MODES:
• MTC: manual compensation
•ATC: automatic compensation
BATTERYSYMBOLblinking: low battery condition.
Batteries should be replaced soon.
CALIBRATION MESSAGES:
• NOTREADY blinking:buffer has been recognized,
but reading is not stable
• READY on: buffer has been recognized and reading
is stable
• WRONG BUFFER and WRONG ELECTRODE
blinkingalternatively: wrongbuffer andelectrodenot
recognized
10
OPERATIONAL GUIDE
•The meter is supplied complete with four 1.5V AA
alkaline batteries. Remove the cover, unwrap the bat-
teries and install them while paying attention to their
polarity (also see “Battery Replacement” section).
• To prepare the instrument for use, connect pH elec-
trode and temperature probe to the BNC and tem-
perature sockets on the top of the instrument.
• The temperature probe is used in conjunction with the
pHelectrode toutilize themeter’sATC capability, but
it can also be used independently to take temperature
measurements. If the probe is disconnected, the tem-
perature can be set manually using the arrow keys
(see page 13 for details).
LCD MESSAGE GUIDE
MODE TAGS light up to indicate the corresponding
active mode, and blink for warning the user.
• SETUP on: setup menu mode has been entered
• CFMblinking:ask confirmation of calibration point
• CAL on: calibration mode has been entered
• CAL blinking: meter is not calibrated or calibration
is expired
• H symbol blinking: reading is frozen on display and
memorized
•Hsymboland RCLon:memorizedvalue is displayed
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