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Instruction Manual
gyM
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PC 700 pH/mV/Conductivity/ºC/ºF
Bench Meter
Part of Thermo Fisher Scientific 68X541704 Rev 2 Sep. 2010
Tech nol o
adeEa
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TABLE OF CONTENTS
1. INTRODUCTION .............................................................. 1
2. GETTING STARTED........................................................ 2
2.1 Keypad Functions ...................................................................2
2.2 LCD Annunciators ................................................................... 3
2.3 Meter Connections .................................................................. 3
3. CONDUCTIVITY ELECTRODE ....................................... 4
4. PH AND MV CALIBRATION............................................ 4
4.1 pH Calibration .........................................................................4
4.2 Millivolt (mV) Offset Adjustment ..............................................6
5. CONDUCTIVITY AND TDS CALIBRATION.................... 6
5.1 Automatic or Manual Calibration ............................................. 6
5.2 Single or Multi-Point Calibration.............................................. 7
5.3 General Calibration Tips .........................................................8
5.4 Automatic Conductivity Calibration Procedure ........................ 8
5.5 Manual Conductivity & TDS Calibration Procedure................. 9
5.6 Temperature Calibration .........................................................9
6. CONDUCTIVITY AND TDS MEASUREMENT ................ 10
6.1 Taking Measurements............................................................. 10
6.2 Automatic and Manual Ranging ..............................................10
7. HOLD FUNCTION ............................................................ 11
8. STORING AND RECALLING DATA ............................... 11
9. SETUP FUNCTIONS........................................................ 12
9.1 1.0 CAL (Calibration)............................................................... 12
9.2 2.0 ELE (Electrode Information).............................................. 12
9.3 3.0 ConF (Configuration)......................................................... 13
9.4 3.1 rdY (Ready / Stability Indicator)......................................... 13
9.5 3.2 ºC ºF (Celsius or Fahrenheit) ............................................ 13
9.6 3.3 buFF (pH Buffers & Calibration Points)—pH only .............13
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9.7 3.3 AtC (Auto Temp Compensation)—Con & TDS only .......... 13
9.8 3.4 tdS (TDS factor)—Con & TDS only ................................... 14
9.9 3.5 t.CO (Temperature Coefficient)—Con & TDS only............ 14
9.10 3.6 t.nr (Normalization Temperature in ºC)—Con & TDS only 14
9.11 3.7 ACAL (Auto Conductivity Calibration)—Con & TDS only ..15
9.12 3.8 SPC (Single Point Calibration)—Con & TDS only ............. 15
9.13 3.9 CELL (Nominal Cell Constant)—Con & TDS only ............. 15
9.14 4.0 rSt (Reset)......................................................................... 16
9.15 5.0 CLr (Clear Memory) ..........................................................16
10. CALCULATING TDS CONVERSION FACTOR .............. 17
11. CALCULATING TEMPERATURE COEFFICIENTS........ 18
12. REPLACEMENTS AND ACCESSORIES........................ 19
13. TROUBLESHOOTING GUIDE......................................... 20
14. SPECIFICATIONS............................................................ 22
15. WARRANTY..................................................................... 24
16. RETURN OF ITEMS......................................................... 25
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1. INTRODUCTION
Thank you for purchasing our PC 700 series benchtop meter.
This microprocessor-based meter is economical and simple to
use. The design incorporates a large LCD for clear viewing, yet
offers a small footprint to conserve space.
The PC 700 measures pH, mV (ORP), conductivity, or TDS
simultaneously with temperature (ºC or ºF).
Each meter includes a convenient slide-out card for quick
reference. Also included is an electrode arm and metal bracket
which can be easily attached to the left or right side of the meter
according to your preference.
The PC 700 benchtop meter replaces our popular pH/CON 510
series meter that was introduced in 2000.
We take great pride in every instrument we manufacture
and hope this one serves you well.
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2. GETTING STARTED
2.1 Keypad Functions
Powers the meter on and off. Upon power on, the meter
automatically begins in the mode that was last used.
Calibration and memory values are retained even if meter
is unplugged.
Toggle between available measurement modes—
pH/Temp, mV/Temp, Conductivity/Temp, or TDS/Temp.
Also used to switch to Temperature calibration during pH,
mV, Conductivity or TDS calibration modes.
Press and hold for 5 seconds to enter SETUP mode.
Toggles between measurement and calibration modes.
In SETUP mode, returns user to the measurement mode.
Confirms calibration values in CAL mode.
Confirms selections in SETUP mode.
Changes Con/TDS range and resolution in MEAS mode.
View recalled values in memory mode.
MI (Memory Insert) stores values into memory.
S Increase value. Scroll up in SETUP & CAL modes.
MR (Memory Recall) recalls values from memory
T Decrease value. Scroll down in SETUP & CAL modes.
Freezes measured reading. Press again to resume
live reading.
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2.2 LCD Annunciators
2.3 Meter Connections
DC
CON/
TEMP
pH
Power supply
8-pin DIN connection for 2-cell Con/TDS/Temp electrode
BNC connection for pH, or ORP (Redox) electrode
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3. CONDUCTIVITY ELECTRODE
The PC 700 includes an electrode with a nominal cell constant of k
= 1.0, built-in temperature sensor, and 1 meter cable. The Ultem
body housing has good chemical resistant properties. The
electrode design offers fast temperature response and reduces air
entrapment, ensuring accurate, repeatable, and stable readings.
The wetted materials of the probe include:
• Polyetherimide (Ultem) – protective probe guard
• Polybutylterphalate (Valox) – sensor housing
• Stainless Steel (SS 304) – 2 bands
The protective probe guard can be removed temporarily for
cleaning however it must be re-attached during measurement and
calibration.
is removed.
Always immerse the probe beyond upper steel band for best
results. Use the fill line on the outside of the probe guard for
reference.
4. PH AND MV CALIBRATION
4.1 pH Calibration
For best results, periodic calibration with known accurate standards i
recommended. Calibrate with standards that bracket your intended
measuring range while including a neutral standard (pH 7.00 or 6.86).
For example, if you expect to measure samples from
c
alibration with 4.01, 7.00, and 10.01 will work well.
The PC 700 meter can be calibrated with up to 5 buffers. The
non-vola
own. d
Erroneous results will occur while the probe guard
s
pH 6.2 to pH 9.5,
tile memory retains all calibration values upon meter shut
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The follo ng calibration stand s are automatically recogniz
wi ard ed;
USA buffer group 1.68, 4.01, 7.00, 10.01, 12.45
NI 5 ST buffer group 1.68, 4.01, 6.86, 9.18, 12.4
See Section 9.6 to change th
e buffer group
1) Press
Dip the pH and ATC electrodes into pH buffer and press
2)
secondary display will lock on the appropriate buffer value. Provide
secondary display begins scrolling the remaining available buffers.
Rinse the pH and ATC electrodes then dip into the next pH buffe
3) r.
The secondary display will lock on the appro ate buffer value.
When the READY indicator appears, press
primary reading will flash briefly then display the percent efficiency
(slope) before the secondary display begins scrolling the remaining
available buffers.
4)
To calibrate another buffer repeat step 3) or press
the measurement mode. Note: The meter will automatically return
to measurement mode upon successful completion of the numbe
specified calibration points. To spec
calibration points see Section 9.6.
IPS: A single poT
pH 6.86 buffers.
When the first calibration value is accep
all prior libration values are erased.
ress
P at any time to abort calibration and return to measurement
ode.
m
as needed to select pH.
. The
ing for best results. When the READY indicator appears, prestirr ss
to accept. The primary reading will flash briefly before the
pri
to accept. The
to return to
ify a different number of pH
int (offset) calibration is only allowed with pH 7.00 or
ted during a new calibration,
ca
r of
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4.2 Millivolt (mV) Offset Adjustment
Oxidization Reduction Potential (ORP or Redox) is not a precise
measurement, but is useful as a relative indicator. As such, mV offset
adjustment is not meant to enhance accuracy, but rather to make
readings comparable to a reference. Commercial ORP solutions are
often used as a check standard in which a meter/electrode system are
verified to be close to a given value, instead of being used as a
calibration standard in which adjustments are made in an attempt to
match the ORP value.
1) Connect an ORP electrode and press as needed to select mV
(or R.mV).
2) Dip the ORP electrode into a solution with a known mV value
(i.e. Zobel, Light’s, quinhydrone, or iodidetriiodide) and stir.
3) Press when the reading is stable. The primary display shows
the relative millivolt value (R.mV) while the secondary display shows
the factory default mV value.
4) Adjust the R.mV value using
to cancel. The meter allows an adjustable maximum value of ±
150 mV from the factory default mV value.
Note: When an offset has been stored successfully, R.mV replaces
mV.
5. CONDUCTIVITY AND TDS CALIBRATION
5.1 Automatic or Manual Calibration
The PC 700 is capable of automatic or manual calibration for
conductivity, and manual calibration for TDS.
In the automatic calibration mode, the meter will automatically select
one of (4) conductivity calibration standard values depending on the
range and normalization temperature being used (TABLE 1).
or . Press to accept or
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If you only use calibration standards that are listed in TABLE 1,
automatic calibration is recommended. If you intend to calibrate with
one or more standards that are not listed in TABLE 1, the PC 700 must
be set for manual calibration instead.
The factory default is automatic conductivity calibration. See
9.11 to change this setting. There is no automatic calibration value
available for conductivity range 1.
Section
TABLE 1
Automatic Calibration Values
Range # Conductivity
Range
r 1 0.00 – 20.00 μS None None
r 2 20.1 – 200.0 μS 84 μS 76 μS
r 3 201 – 2000 μS 1413 μS 1278 μS
r 4 2.01 – 20.00 mS 12.88 mS 11.67 mS
r 5 20.1 – 200.0 mS 111.8 mS 102.1 mS
Normalization Temperature
25 ºC 20 ºC
Range
#
r 1 0 – 10.00 ppm none
r 2 10.1 – 100.0 ppm
r 3 101 – 1000 ppm
r 4 1.01 – 10.00 ppt
r 5 10.1 – 100 ppt
5.2 Single or Multi-Point Calibration
Use Single-Point Calibration to apply a single calibration value across
all ranges.
TDS Range
(using 0.5 TDS factor)
Automatic Calibration
Values
none
none
none
none
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Use Multi-Point Calibration for individual calibration in each range. This
will restrict an individual calibration so that it is applied to one range
only. When using multi-point calibration, perform a calibration in each
range that you expect to use for best results.
The factory default is Single-Point Calibration. See Section 9.12 to
change this setting.
5.3 General Calibration Tips
For best results, periodic calibration with known accurate standards is
recommended. A maximum of one calibration point per range can be
performed. If multiple calibration points are used in the same range,
the most recent one will replace the previous one.
When the electrode is replaced, it is best to clear the calibration to the
factory default values (see Section 9.14).
Rinse or immerse the probe before calibration and between samples
with clean water (deionized water is ideal).
The PC 700 has non-volatile memory which will retain all calibration
values, as well as meter settings and memory values upon meter shut
down or unexpected power loss.
To protect from erroneous calibrations, the allowable tolerance is ±40%
of the factory default value.
Low conductivity standard solutions (less than 20 µS) are unstable and
are very temperature dependent. As a result, reproducible calibration
results are challenging in lowest measurement range #1 (0.00 to 20.0
µS).
5.4 Automatic Conductivity Calibration Procedure
1) Press
2) Dip the electrode into the conductivity standard and press
Provide stirring for best results.
3) The primary display will show the factory default value, while the
secondary display will lock on the appropriate automatic standard
value from TABLE 1.
as needed to select conductivity (μS or mS).
.
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4) When the READY indicator appears, press to accept. The
primary reading will flash briefly before returning to measurement
mode upon successful calibration.
5.5 Manual Conductivity & TDS Calibration Procedure
1) Press
as needed to select conductivity (μS or mS) or TDS
(ppm or ppt) calibration.
2) Dip the electrode into the calibration standard and press
.
Provide stirring for best results.
3) The primary display will show the current reading, while the
secondary display will be the factory default value. Adjust the
conductivity or TDS reading using
or . Press to
accept. The primary reading will flash briefly before returning to
measurement mode upon successful calibration.
5.6 Temperature Calibration
The thermistor sensor used for automatic temperature compensation
and measurement is accurate and stable, so frequent calibration isn’t
required. Temperature calibration is recommended upon probe
replacement, whenever the temperature reading is suspect, or if
matching against a certified thermometer is desired.
1) Place the probe into a solution with a known accurate temperature
such as a constant temperature bath.
2) Press
followed by . The primary display shows the
measured temperature while the secondary display shows the
factory default temperature.
4) Adjust the temperature using
to cancel. The meter allows an adjustable maximum value of ± 5
º
F) from the factory default temperature.
(or ± 9
or . Press to accept or
º
C
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6. CONDUCTIVITY AND TDS MEASUREMENT
6.1 Taking Measurements
1) Rinse the electrode with de-ionized or distilled water before use
to remove any impurities. Gently shake excess water droplets.
2) Dip the probe into the sample beyond the upper steel band
(utilize the fill line on the outside of the probe guard for
reference).
3) Allow time for the reading to stabilize. Note the reading on the display.
The clear yellow protective probe guard must be attached during
measurement.
removed.
Erroneous results will occur while the probe guard is
6.2 Automatic and Manual Ranging
The PC 700 automatically selects the optimum range in which your
readings appear. Refer to TABLE 1 for a list of the available ranges.
To turn-off automatic ranging, press
. MEAS will flash, indicating
that manual ranging is active. To manually select the next range,
press
again. After range 5, automatic ranging is resumed.
For example, a reading of 465 μS will automatically settle in range 3
(r3). Using manual range advancement this will read as 0.47 mS in
range 4 (r4), and 0.5 mS in range 5 (r5).
Automatic ranging is typically used since this will always provide the
best resolution.
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7. HOLD FUNCTION
For prolonged observation of a reading, press during
measurement mode to freeze the display. The “HOLD” indicator will
display when the reading is held. To release the held value and
resume measurement, press
memory by pressing .
8. STORING AND RECALLING DATA
The PC 700 can retain up to 100 data points into memory for
later retrieval.
1) In the measurement mode, press
into memory. The stored memory location value (StO) is briefly
displayed.
2) To recall data from memory, press
recent stored data is displayed first. Press
location of the desired data, then press
3) Press
to measurement mode. To erase stored data, see Section 9.15.
to return to the stored data location. Press to return
again or insert the held value into
to insert the measured value
. The location of the most
or to select the
to accept.
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9. SETUP FUNCTIONS
Use the setup feature to customize your instrument operation. First,
select the appropriate measurement mode you wish to adjust by
pressing
Conductivity, or TDS). During measurement, press and hold for 5
seconds to enter SETUP mode of the parameter being measured.
Press
Press
Press
9.1 1.0 CAL (Calibration)
9.2 2.0 ELE (Electrode Information)
TIP: When multiple pH slopes exist, the slope that is available to view
will depend on the measured value before entering SETUP mode.
For example, if pH calibration values pH 4.01, 7.00 and 10.01 were
completed, there will be two slope values; one that corresponds to pH
values below 7.00 and another that corresponds to pH values above
7.00. If the measured pH value was 5.23 when setup mode was
entered, the pH slope that corresponds to values lower than 7.00 will
be available to view. If no calibration is stored, the offset will be 0.0
mV and the slope is 100%.
until the desired units are displayed (i.e. pH, mV,
or to change programs or change options.
to select the program or confirm selection.
to go back one level or return to measurement mode.
Press
Press to view mV offset (OFS)—mV and pH modes.
Press
Press to view cell efficiency in each range—conductivity
and TDS modes.
to view stored calibration points.
to view % slope (SLP)—pH mode.
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9.3 3.0 ConF (Configuration)
Press
9.4 3.1 rdY (Ready / Stability Indicator)
Press
Press
Auto HOLd.
Press
9.5 3.2 ºC ºF (Celsius or Fahrenheit)
Press .
Press
Press
9.6 3.3 buFF (pH Buffers & Calibration Points)—pH only
Press
Press
(pH mode only).
Press
(pH and Ion only).
to access set-up programs 3.1 thru 3.9.
.
or to choose READY “On”, READY “OFF”, or
to confirm.
or to select ºC or ºF.
to confirm.
.
or to select “USA” or “NIST” buffer group
or to select number of Calibration Points
Press
9.7 3.3 AtC (Auto Temp Compensation)—Con & TDS only
Press .
to confirm.
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Press or to select “Yes” or “No”.
Press
9.8 3.4 tdS (TDS factor)—Con & TDS only
Press
Press
1.00).
Press
9.9 3.5 t.CO (Temperature Coefficient)—Con & TDS only
The temperature coefficient is the amount of change in conductivity per
degree temperature (% per ºC). The PC 700 is factory set to a
temperature coefficient of 2.1 % per ºC. For most applications this will
provide good results. The meter allows adjustment from 0.0 to 10.0.
TIP: Select 0.0% for uncompensated measurements. The temperature
will be measured by the electrode and displayed in measurement
mode—without compensation.
See Section 11 – Calculating Temperature Coefficients.
Press
Press
Press
9.10 3.6 t.nr (Normalization Temperature in ºC)—Con & TDS only
When Automatic Temperature Compensation is used, measurements
are adjusted by the temperature coefficient to the normalization
temperature. The default value is 25 ºC.
to confirm.
.
or to select the desired TDS factor (.40 to
to confirm.
.
or to select the desired value (0.00 to 10.0).
to confirm.
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Press .
Press
Press
9.11 3.7 ACAL (Auto Conductivity Calibration)—Con & TDS only
See Section 5.1 for more details on Automatic Conductivity Calibration.
Press .
Press
Press
9.12 3.8 SPC (Single Point Calibration)—Con & TDS only
See Section 5.2 for details on Single Point & Multi Point Calibration.
Press .
Press
Press
9.13 3.8 CELL (Nominal Cell Constant)—Con & TDS only
The PC 700 includes a probe with a nominal cell constant (k) of 1.0.
Use probes with k = 0.1 and 10 (sold separately) for improved
performance in extreme sample ranges. Use this setup function to
change the cell constant if necessary. Meter default is 1.0 to match the
included probe.
k = 0.1 ideal for low measurements <20 µS (<10 ppm).
k = 1.0 ideal for mid-range measurements
k = 10 ideal for high measurements >20 mS (>10 ppt).
or to select the desired value (15.0 to 30.0).
to confirm.
or to select “Yes” (Automatic) or “No” (Manual).
to confirm.
or to select “Yes” (Single) or “No” (Multi).
to confirm.
Press .
Press
Press to confirm.
or to select 0.1, 1.0, or 10.0
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9.14 4.0 rSt (Reset)
Press
Press
If “Yes”, press or to select “Cal” (calibration reset
only) or “FCt” (complete reset to factory default settings).
Press to confirm.
9.15 5.0 CLr (Clear Memory)
Press
Press
Press to confirm.
.
or to select “Yes” (Reset) or “No” (Cancel).
.
or to select “Yes” (Erase memory) or “No”.
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10. CALCULATING TDS CONVERSION FACTOR
You can calibrate TDS using the value of the calibration standard solution
at a standard temperature such as 25 ºC. To determine the conductivityto-TDS conversion factor use the following formula:
Factor = Actual TDS ÷ Actual Conductivity @ 25 ºC
• Actual TDS: Value from the solution bottle label or as a
standard made using high purity water and precisely weighed
salts.
ppm = milligram of salt(s) per liter of water = mg/L
ppt = gram of salt(s) per liter of water = g/L
• Actual Conductivity: Value measured using a properly
calibrated Conductivity/Temperature meter.
Both the Actual TDS and the Actual Conductivity values must be in the
same magnitude of units. For example, if the TDS value is in ppm the
conductivity value must be in µS; if the TDS value is in ppt the conductivity
value must be in mS.
Check your factor by multiplying the conductivity reading by the factor in
the above formula. The result should be in TDS value.
When the TDS factor is set to 1.0, Conductivity = TDS.
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11. CALCULATING TEMPERATURE COEFFICIENTS
To determine the temperature coefficient of your sample solution use this
formula:
Where:
tc = Temperature coefficient 25 = 25 ºC
C
= Conductivity at Temp 1 CT2 = Conductivity at Temp 2
T1
T1 = Temp 1 T2 = Temp 2
NOTE: A controlled temperature water bath is ideal for this procedure.
1. Immerse the probe into a sample of your solution and adjust the
temperature coefficient to 0% (that is, no compensation) by following
instructions as described in Section 9.9.
2. Wait for 5 minutes. Note T1 and CT1 (conductivity at T1).
3. Condition the sample solution and probe to a temperature (T2) that is
about 5 ºC to 10 ºC different from T1, and note the conductivity
reading C
.
T2
NOTE: Record your results for future reference. Ideally T1 and T2 should
bracket your measurement temperature, and should not differ by
more than 5 ºC.
4. Calculate the temperature coefficient of your solution according to the
formula shown above.
5. Enter the calculated temperature coefficient into the meter.
The calculated temperature coefficient will now be applied to all the meter
readings.
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12. REPLACEMENTS AND ACCESSORIES
Part number Ordering Code
Item Description
PC 700 with pH electrode (ECFC7252101B / 59001-
70), conductivity/temp electrode (CONSEN9501D /
35608-74), integral stand,100/240 VAC
PC 700 with integral stand, 100/240 VAC - 35413-20
Plastic, Gel-filled, Double-junction pH electrode ECFC7252201B 35641-51
Plastic, Gel-filled, Single-junction pH electrode ECFC7252101B 59001-70
Replacement conductivity/temp electrode, k = 1.0 CONSEN9501D 35608-74
Epoxy/platinum conductivity/temp electrode, k = 0.1 93X546101 35608-72
Glass/platinum conductivity/temp electrode, k = 1.0 - 35608-76
Epoxy/platinum conductivity/temp electrode, k = 10.0 93X546102 35608-78
SMPS, 100/240 VAC, 9V, 6W power adapter 60X030130 35615-07
10 μS, (20) x 20mL Sachets ECCON10BS 35653-09
84 µS, 480 mL bottle* ECCON84BT 00653-16
447 μS, 480 mL bottle ECCON447BS 00653-47
500 μS, 480 mL bottle ECCON500BT -
1413 μS, 480 mL bottle* ECCON1413BT 00653-18
1413 μS, (20) x 20mL Sachets* ECCON1413BS 35653-11
2764 μS, 480 mL bottle ECCON2764BT 00653-20
2764 μS, (20) x 20mL Sachets ECCON2764BS 35653-12
5.0 mS, 480 mL bottle ECCON5000BT -
12.88 mS, 480 mL bottle* ECCON1288BT 00606-10
15 mS, (20) x 20mL Sachets ECCON15000BS 35653-13
111.8 mS, 480 mL bottle* ECCON1118BT -
*Automatic Calibration Standard Value at 25 ºC
Eutech
Instruments
ECPC70043S
01X543601
Oakton
Instruments
35413-00
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13. TROUBLESHOOTING GUIDE
PROBLEM CAUSE SOLUTION
No display Main power not switched on.
“Ur” (Under
range)
“Or” (Over
range)
in primary or
secondary
display
Slow response Dirty electrode.
Meter not
responding to
key press
Secondary
display
continually
scrolls
AC Adapter socket not inserted
properly.
Measured value is out
of range.
Electrode not connected.
Electrode clogged, dirty
or broken.
Meter not calibrated.
Wrong temp value.
Temperature of sample is
changing.
Manual HOLD or Auto HOLD
is active.
Worn keypad.
Invalid key; Button is not
functional in the current
operation mode.
The conductivity calibration
standard is not within 40% of
expected value during
automatic calibration.
The pH buffer is >1 pH unit
from the available pH buffers
remaining for calibration.
Switch on the power supply.
Re-insert AC Adapter.
Check electrode is connected.
Clean or replace electrode.
Recalibrate the meter.
Confirm measurement condition.
Treat samples to bring within meter
measuring range.
Reset meter.
Clean the electrode.
Allow temperature to stabilize.
Press to deactivate manual
HOLD. See Section 9.4 to disable Auto
Hold feature if enabled.
Contact Technical Service.
Press alternate key.
Select valid key depending on current
mode.
Ensure that the conductivity
electrode guard is attached.
Use fresh standard or use an alternate
calibration standard.
Use fresh standard or use an alternate
calibration standard. Verify the USA or
NIST buffer selection. Check pH
electrode.
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PROBLEM CAUSE SOLUTION
Calibration error.
Buffer value does not match
displayed value or electrode is
reading
Slow response Dirty electrode. Clean & rehydrate the electrode
CAL
during pH CAL
mode
disconnected or failing.
Broken or worn electrode Replace electrode Unstable pH
External ‘noises’ or induction
(electrical ‘noise’ caused by a
nearby motor)
Calibration was attempted
using only 1-point that was not
pH 7 (USA) or pH 6.86 (NIST).
Use fresh buffer solutions.
Check electrode connection.
Clean & recondition electrode.
Replace electrode.
Remove or switch off interfering device
Recalibrate using 2 or more pH points
or use pH 7 (USA)
or use pH 6.86 (NIST).
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14. SPECIFICATIONS
pH Range -2.00 to 16.00 pH
Resolution 0.01 pH
Accuracy
Calibration Points Up to 5 points with Auto-buffer recognition
Buffer Options
Slope Display Yes (with offset)
mV Range
Resolution
Accuracy
Offset Adjustment Up to ±150 mV
Conductivity Range ..µS to 200.0 mS
Conductivitity
Resolution
TDS Range
(0.5 TDS factor)
Resolution 0.01 / 0.1 / 1 ppm ; 0.01 / 0.1 ppt
Accuracy ±1% Full Scale
Temperature
Range (Meter) 0.0 to 100.0 ºC / 32.0 to 212.0 ºF
Compensation
Type & Range
Resolution 0.1 ºC / ºF
Accuracy ± 0.5ºC / ± 0.9ºF
Calibration
Coefficient 0.0 to 10.00 per ºC
Offset in 0.1 º increments; Offset range: ± 5.0 ºC / 9.0 ºF
USA : pH 1.68, 4.01, 7.00, 10.01,12.45
NIST: pH 1.68, 4.01, 6.86, 9.18 ,12.45
0.1 mV (± 199.9 mV), 1 mV beyond ± 200 mV
± 0.2 mV (± 199.9 mV), ± 2 mV beyond ± 200 mV
0.01 / 0.1 / 1 μS ; 0.01 / 0.1 mS
.. to 100.0 ppt @ 0.5 fact (200.0 @ 1 factor)
Automatic with supplied cell or Manual.
0.0 to 100 ºC / 32.0 to 212.0 ºF,
0.0 to 80 ºC / 32.0 to 176.0 ºF with supplied cell
± 0.01 pH
± 2000 mV
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Normalization 15.0 to 30.0 ºC (adjustable)
Cell Constant 0.1, 1.0, 10.0 (selectable)
TDS Factor 0.40 to 1.00 (adjustable)
Calibration points
Auto-ranging Yes
Hold Function Yes
Memory 100 data sets
Input BNC, 8-pin DIN
Power AC/DC 9V, 6W Adapter (100/240 VAC, 50-60Hz)
Dimensions (mm) meter only = 175 (L) x 155 (W) x 69 (H)
Automatic (4 points); Maximum 1 per range
Manual (5 points); Maximum 1 per range
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15. WARRANTY
This meter is supplied with a warranty against significant deviations in
material and workmanship for a period of THREE years from date of
purchase whereas probe with a SIX month warranty.
If repair or adjustment is necessary and has not been the result of abuse
or misuse within the designated period, please return – freight prepaid –
and correction will be made without charge. Eutech Instruments/Oakton
Instruments will determine if the product problem is due to deviations or
customer misuse.
Out of warranty products will be repaired on a charged basis.
The warranty on your instrument shall not apply to defects resulting from:
• Improper or inadequate maintenance by customer
• Unauthorized modification or misuse
• Operation outside of the environment specifications of
the products
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16. RETURN OF ITEMS
Authorization must be obtained from our Customer Service Department or
authorized distributor before returning items for any reason. A “Return
Material Authorization” (RMA) form is available through our authorized
distributor. Please include data regarding the reason the items are to be
returned. For your protection, items must be carefully packed to prevent
damage in shipment and insured against possible damage or loss.
Eutech Instruments will not be responsible for damage resulting from
careless or insufficient packing. A restocking charge will be made on all
unauthorized returns.
NOTE: Eutech Instruments Pte Ltd /Oakton Instruments reserve the right
to make improvements in design, construction, and appearance of
products without notice.
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NOTES
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For more information on our products, please contact our channel
partner or visit our websites listed below:
Oakton Instruments
625 E Bunker Court
Vernon Hills, IL 60061
USA
Tel: (1) 888-462-5866
Fax: (1) 847-247-2984
info@4oakton.com www.4oakton.com
Distributed by:
Eutech Instruments Pte Ltd
Blk 55, Ayer Rajah Crescent,
#04-16/24
Singapore 139949
Tel: (65) 6778 6876
Fax: (65) 6773 0836
eutech@thermofisher.com
www.eutechinst.com
Part of Thermo Fisher Scientific
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