Reed Instruments R3500 User manual

2
T a b le o f Co n te n ts
Introduction ...................................................................................................2
ProductQuality..............................................................................................3
Safety ............................................................................................................3
Features.........................................................................................................3
Included.........................................................................................................3
Specications................................................................................................4
InstrumentDescription ..................................................................................5
Operating Instructions................................................................................6-8
PowerON/OFF.........................................................................................6
Selecting the TemperatureUnitofMeasure.............................................6
Taking Measurements...............................................................................6
DataHold .................................................................................................6
OverRange...............................................................................................6
Auto PowerOff.........................................................................................7
pH Calibration Procedure......................................................................7-8
Replacing the Electrode ................................................................................8
Battery Replacement.....................................................................................8
Applications...................................................................................................9
Accessories and ReplacementParts ............................................................9
ProductCare ...............................................................................................10
ProductWarranty ........................................................................................11
ProductDisposaland Recycling .................................................................11
ProductSupport..........................................................................................11
In tr o d u c tio n
Thank you forpurchasing yourREED R3500 Pen Type pH Meter.Please
read the following instructions carefully before using yourinstrument.By
following the steps outlined in this manualyourmeterwillprovide years of
reliable service.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

3
Pr o d u c t Qu a lity
This producthas been manufactured to meetstated productspecications.
Ifa certicate ofcalibration is required please contactthe nearestauthorized
REED distributororauthorized Service Center.Please note an additionalfee
forthis service willapply.
Sa fe ty
Neverattemptto repairormodify yourinstrument.Dismantling your
product,otherthan forthe purpose ofreplacing batteries,may cause
damage thatwillnotbe covered underthe manufacturer's warranty.
Servicing should only be provided by an authorized service center.
F e a tu r e s
UzeTU±z°°z°z±a°z°°
n°°°•z'°WT
Rz•°°z°•°z
k°z•°z'°a°°•±°±°
Uzz±•
pz°
i°•°•z°°°°°±
e'z°±•zz±z
In c lu d e d
i°•°Tz
az±TzTz°
Sz°°
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

4
Sp e c ific a tio n s
Temperature
f°zkz°H A:B8W08D8T1
R••z•H :6FW0:T1
k°H 86:W086:T1
pH
Measuring Range: 0.00 to 14.00 pH
Accuracy: ±0.02 pH
Resolution: 0.01 pH
General Speci cations
UzH UzUz4eTU
Data Hold: Yes
Rl5hH r°0z°zz°:8°1
Waterproof: Yes
eSz°b±•zH r°
i°lH BekBBT°Sz°°
h°zm°°z°H A:W08C8T1
lz°m°°z°H :B:W05:8C8T1
Operating Humidity: 10 to 80%
U°H E6A:6D:6D(0:FCB8B81
p°H A6:0FF1
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

5
In s tru me n t De s c rip tio n
1. Battery CompartmentCap
6 eTUUz
A6 TReS
B6 aheUS
1
2
34
5
6
7
5. PowerButton
6. Electrode Collar
7. Electrode
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

6
Op e r a tin g In s tru c tio n s
Before use,soak the glass bulb in
distilled water for a minimum of1 hour
Power ON/ OFF
Turn the meteron oroffby pressing the Powerbutton.
Select ing t he Temper at ur e Unit of M easur e
When the meteris rstpowered ON,the defaultscale setting is setto Celsius
0T16W°°'°°'°°°°°z°°z°6
1. Press and hold the HOLD button while powering on the meter.
2. Release the HOLD'°Tz°z°±z6
3. Press the CAL'°'°°°Tz±W6
4. Press the HOLD button to conrm selection and resume
normaloperation.
Note: The meterwillautomatically save the selected unitofmeasure as
the new defaultwhen powered off.
Taking M easur ement s
Submerge the electrode in the solution to be tested while stirring gently.
Waitforthe measurements to stabilize.The pH value automatically com-
°z°±°°z°z°°eTUUz°°z
the secondary value below indicates the temperature ofthe sample.
Dat a Hold
1. Press the HOLD button to freeze the currentreading on the display.
6 p°±°(a±(z°z°eTU±z6
3. Press the HOLD button again to resume normaloperation.
Over Range
p°°az°±°(8(°(:B(4°eTU±z±•z°
(e555(°±°(a555(°°6b°°°•±°z•°±
z4°az°±•z°(5555((8688(6
continued...
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

7
Aut o Power Off
m°°°'z°°4°°°z°±z°z-
mately 10 minutes ofinactivity.
pH Calibr at ion Pr ocedur e
b°a°°°±z°°±°±°±°4•z'z4
condition yourelectrode in pH 4 buffersolution ordistilled waterfora mini-
mum of1 hour.The electrode is now ready forcalibration.
1. Prepare buffersolutions forcalibration.Itis recommended to start
with calibration bufferpH 7.00 pH,followed by eitherpH 4.00 orpH
:86880•°°°z°°°°•°±z°z°16n°°
pH 4.00 and pH 7.00 buffersolutions when measurements are
°°•°±'°°°±°°a•z°6n°°aE688
z±a:8688'°°°z°°z°°°•°±
be on the higherside ofthe pH scale.
Note:m°Rz•m°°z°T°z0RmT1z•°±
the calibration process.Fora more accurate calibration,make sure that
•z'z'°z°zEEW0CT16
2. Turn the meteron by pressing the Powerbutton.
3. Place the electrode into the pH 7.00 buffersolution,so thatthe tip
ofthe electrode is fully immersed in the buffersolution,and stirata
moderate,uniform rate.
4. When calibration has stabilized,a pH value willappearatthe top of
the display.
C6 i°z±±°TRe'(TRe(z°z°±z
and release to enterthe calibration mode.
D6 (TRe('°'±•z°•z'z•°
has begun.
Note:b(V(±z°±z°±°TRe'4z°°zz±
pH buffersolution is being used,and thatthe electrode is notdried out.
7. The pH meterwillthen automatically identify the buffersolution and
the currenttemperature.
continued...
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

8
F6 p°•°°±4°a°°±z(V±(°°z°•±
and willthen resume normaloperation.
9. Repeatsteps 3 through 8 forthe pH 4.00 and pH 10.00 buffersolutions.
Note: Always rinse the electrode with distilled waterto remove any
°±z'°'°°°•z'z6
Re p la c in g th e E le c tro d e
pH Electrodes have a nite lifespan due to inherentproperties and is
dependenton frequency ofuse and care.Propermaintenance ofyourpH
°°°'°zz°°°a°°•±°6p°°
reading becomes unstable orsluggish itmay be time to replace your
electrode.Ifyou can no longercalibrate the electrode,itis time to replace it.
Follow the steps below to replace the electrode:
1. Remove the electrode protective cap.
6 n•°°°°•±°•z••°4z±°°•°°6
3. Pullthe pH electrode module out.
B6 Tz°z°°°•±°±°0kAC885VeVTmkhUV1
the socket.
5. Tighten the electrode collarto ensure a good sealand replace the cap.
Ba tte r y Re p la c e me n t
p°°'z°•z°z°eTU4°'z°°
be replaced.
1. Twistoffthe battery compartmentcap.
6 k°z•°°0B1ekBB:6Co'•°'z°°6
3. Replace the battery compartmentcap.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

9
Ap p lic a tio n s
pz°T±
Y°°z°a°z°°
Rz
pz°z°
S°°z°i±•
Ac c e s s o rie s a n d Re p la c e me n t Pa r ts
R3500-ELECTRODE ReplacementpH Electrode
PH-04 4 pH BufferSolution
PH-07 7 pH BufferSolution
R1004 4 pH Calibration BufferPouches
R1007 7 pH Calibration BufferPouches
CA-52A SoftCarrying Case
Don'tsee yourpartlisted here? Fora complete listofallaccessories and
replacementparts visityourproductpage on www.reedinstruments.com.
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com

10
Pr o d u c t Ca r e
To keep yourinstrumentin good working orderwe recommend the following:
l°±•z•°z4±z•°6
Tz°°'z°z°°±°±6
b°'°°±z°±°°
please remove the battery.
T°z±•z±z••°°'±°z±z'°•°z°6U
z°•°z°±°•°°6n°°°zz6

Before rstuse orafterstorage,you may notice white KClcrystals forming
outside yourelectrode.This willnotinterfere with measurements.Simply
rinse the electrode.
Rz°°°az''°'°•z°•z±
store the electrode.
Rz°°a°°•±°±°5°±z°°
'°°°6
g°°•'°z''6
fz°°°°°•±°•°z6S°°°°z°°4°°
°°•±°±°5°±z°6b°°°•±°z'°°°°±z
solventimmiscible with water,clean itwith a solventmiscible with water
e.g.ethanoloracetone and rinse carefully with water.
l°°°°•±°•z°z°0bzzz'°
°aB16
REED Ins t r ume nt s
1-877-849-2127 |[e-mail] |www.reedinstruments.com