OHAUS STARTER 3100C User manual

STARTER 5000 Bench pH Meter EN-11
STARTER 3100C
Bench Conductivity Meter
Instruction Manual
Manual de instrucciones del
Conductivímetro de mesa
STARTER 3100C
STARTER 3100C
Appareil de mesure de la
conductivité de laboratoire
Manuel d’instructions
STARTER 3100C
Medidor de Condutividade de
Bancada
Manual de Instruções
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TABLE OF CONTENTS
1INTRODUCTION...................................................................1
1.1 Definition of Signal Warnings and Symbols ...................................... 1
1.2 Safety Precautions............................................................................ 2
1.3 Display and controls.......................................................................... 3
2INSTALLATION.....................................................................5
2.1 Package contents.............................................................................. 5
2.2 Installing the stand-alone electrode holder ....................................... 6
2.3 Installing the power adapter.............................................................. 6
2.4 Connect the conductivity electrode ................................................... 7
2.5 Meter stand for adjusting view angle................................................. 7
2.6 Attached quick guide......................................................................... 7
3SETUP...................................................................................8
3.1 Set temperature unit.......................................................................... 8
3.2 Set MTC temperature value.............................................................. 8
3.3 Set calibration standard .................................................................... 8
3.4 Set temperature correction coefficient .............................................. 8
3.5 Set TDS factor................................................................................... 9
4STARTER 3100C OPERATION ..........................................10
4.1 Calibration ....................................................................................... 10
4.1.1 Selecting a standard................................................................. 10
4.1.2 Performing a calibration ...........................................................10
4.2 Sample measurement......................................................................11
4.3 TDS and Salinity measurement .......................................................11
4.4 Using the memory............................................................................11
4.4.1 Storing a reading.......................................................................11
4.4.2 Recalling from memory ............................................................ 12
4.4.3 Clearing the memory................................................................ 12
4.5 Printing ............................................................................................ 12
5MAINTENANCE ..................................................................14
5.1 Error message................................................................................. 14
5.2 Meter maintenance.......................................................................... 14
5.3 Self diagnosis.................................................................................. 14
5.4 Recover Factory Setup ................................................................... 15
6TECHNICAL DATA..............................................................16
6.1 Specifications .................................................................................. 16
6.2 Compliance ..................................................................................... 17
7APPENDIX ..........................................................................18
7.1 Conductivity standards.................................................................... 18
7.2 Examples of temperature coefficients (α-value).............................. 18
7.3 Conductivity to TDS conversion factors.......................................... 18
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STARTER 3100C Bench Conductivity Meter EN-1
1 INTRODUCTION
Thank you for choosing OHAUS. Please read the manual completely before using the
STARTER 3100C bench conductivity meter to avoid incorrect operation.
The STARTER 3100C has an excellent performance/price ratio and is designed with many useful
features.
Starter 3100C offers many practical features such as:
xBacklight liquid crystal screen which make the display more clearly
xAuto/manual endpoint
xQuick Guide attached under meter to assist with operation
xRS232 port and memory to store up to 99 measurements
1.1 Definition of Signal Warnings and Symbols
Safety notes are marked with signal words and warning symbols. These show safety issues and
warnings. Ignoring the safety notes may lead to personal injury, damage to the instrument,
malfunctions and false results.
Signal Words
WARNING For a hazardous situation with medium risk, possibly resulting in
injuries or death if not avoided.
CAUTION For a hazardous situation with low risk, resulting in damage to the
device or the property or in loss of data, or injuries if not avoided.
Attention For important information about the product.
Note For useful information about the product
Warning Symbols
General hazard
Explosion hazard
Corrosive hazard
±
Alternating current
¯
Direct current
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EN-2 STARTER 3100C Bench Conductivity Meter
1.2 Safety Precautions
CAUTION: Read all safety warnings before installing, making connections, or servicing this
equipment. Failure to comply with these warnings could result in personal injury and/or property
damage. Retain all instructions for future reference.
xVerify that the input voltage range printed on the data label and the plug type matches the
local AC power to be used.
xMake sure that the power cord does not pose a potential obstacle or tripping hazard.
xUse the equipment only in dry locations.
xDry off any liquid spills immediately. The instrument is not watertight.
xWhen using chemicals and solvents, comply with the instructions of the chemical producer
and the general lab safety rules.
xUse only approved accessories and peripherals.
xOperate the equipment only under ambient conditions specified in these instructions.
xDisconnect the equipment from the power supply when cleaning.
xDo not operate the equipment in hazardous or unstable environments.
xService should only be performed by authorized personnel.
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STARTER 3100C Bench Conductivity Meter EN-3
1.3 Display and controls
Displays




1
Endpoint stability / Auto endpoint
2
Measurement icon - measurement or calibration is running
3
Calibration icon - calibration in progress
4
Setup icon - instrument is in the setup mode
5
TDS factor in the setup mode
6
Conductivity / TDS / Salinity / Cell Constant
7
Standard / Error index
8
Temperature during measurement or reference temperature in setup mode
1
2
3
4
5
7
8
6
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EN-4 STARTER 3100C Bench Conductivity Meter
Controls
Button
Press & release
Press & hold
for 3 seconds
- Start or endpoint measurement
- Confirm setting, store entered
value
- Turn auto endpoint on / off
,
- Start calibration
- Review the latest calibration
data (cell constant)
- Meter turn on
-
Return
to measurement screen
- Meter turn off
- Store current reading to memory
-
Increase value during setting
-
Scroll up through the memory
- Recall stored data
-
Print current memory data
- Switch between pH and mV
measuring modes
-
Decrease value during setting
- Scroll down through the memory
- Enter setup mode
-
Start self-diagnosis
Turn on/off the backlight of the
LCD
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STARTER 3100C Bench Conductivity Meter EN-5
2 INSTALLATION
Carefully unpack the meter.
2.1 Package contents
The ST3100C-B package has the following items
In addition to ST3100C-B content, the ST3100C-F package also includes the following:
The best measurement range for STCON3 4-ring (4-pole) conductivity electrode is 70 μS/cm-200
mS/cm. In this range the measurement accuracy can reach 0.5%.
If you use STCON3 to measure pure water in which conductivity value is below 70 μS/cm; the
measurement will be less accurate (approximately 1% to 5%).
Does not use STCON3 to measure cond. value less than 2 μS/cm, the accuracy is not good.
Accessories:
Model
Description
P/N
STCON3
4-ring cond. electrode
(70 μS/cm
-200mS/cm, 0.5% accuracy; )
( 2-70 μS/cm, 1-5% accuracy)
83033972
STCON7
Pure water cond. electrode
(0.02μS/cm-200 μS /cm; 0.02 μS/cm accuracy)
30080693
Standard Conduct 10 μS/cm 250ml
30100441
Standard Conduct 84 μS/cm 250ml
30100442
Standard Conduct 1413 μS/cm 250ml
30100443
Standard Conduct12.88mS/cm 250ml
30100444
Electrode holder stand alone (3100/3100C)
30058733
In use cover
30058734
ST
3100C-B
U
nits
STARTER 3100C meter
1
Stand alone electrode holder
1
1413 μS/cm standard solution
1 bottle (about 20ml)
12.88 mS/cm standard solution
1 bottle (about 20ml)
In use cover
1
STCON3 conductivity electrode
1
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EN-6 STARTER 3100C Bench Conductivity Meter
2.2 Installing the stand-alone electrode holder
Install the electrode arm on the base,
After adjusting the tension knob to some extent, you can move up and down. When the
electrode is installed on the arm, the storage bottle of pH electrode fits into the base hole.
2.3 Installing the power adapter
Insert the right adapter clip into the power adapter slot.
The Ohaus balance power supply is also 12V which could be used for the pH meter.
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STARTER 3100C Bench Conductivity Meter EN-7
2.4 Connect the conductivity electrode
There is one socket “COND.” for conductivity electrode.


2.5 Meter stand for adjusting view angle
One unique design of the STARTER 3100C is the meter stand, which can be used to adjust the view
angle of the display in case of working on high lab table.
2.6 Attached quick guide
Another unique design of the STARTER 3100C is the attached quick guide, the quick guide is
attached into the bottom housing of the meter, you can use finger to pull it out.
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EN-8 STARTER 3100C Bench Conductivity Meter
3 SETUP
3.1 Set temperature unit
xPower the meter on by pressing .
xPress and hold until the set up icon appears on the display and the current
temperature unit blinks. (°C or °F)
xUse or buttons to select temperature unit .
xPress to confirm your setting. Continue with temperature value setting by
following or press to go back to the measurement screen.
Note: °C = 5/9 (°F -32)
3.2 Set MTC temperature value
After the temperature unit setting, the meter goes to setup manual temperature (MTC) value
setting.
Use or buttons to adjust the temperature value.
Press to confirm your setting. Continue with calibration standard setting by following or
press to go back to the measurement screen.
3.3 Set calibration standard
After the MTC temperature value setting, the meter goes to setup calibration standard.
Use or buttons to select calibration standard.
Press to confirm your setting. Continue with temperature correction coefficient setting
by following or press to go back to the measurement screen.
3.4 Set temperature correction coefficient
After the calibration standard setting, the meter goes to the temperature correction coefficient
setting.
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STARTER 3100C Bench Conductivity Meter EN-9
Use or buttons to adjust the temperature correction value. (0.00 to 10.00 %/°C).
Press to confirm your setting. Continue with reference temperature setting by following
or press to go back to the measurement screen.
Note:
If you set the temperature correction coefficient value as 0 %/°C , that means NO Temperature
Compensation for the conductivity measurement. The meter displays the real conductivity value
at current temperature.
3.5 Set TDS factor
After selecting the reference temperature, the current TDS factor blinks.
Use or buttons to adjust the TDS factor value. Press to confirm your
setting or press to go back to the measurement screen.
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EN-10 STARTER 3100C Bench Conductivity Meter
4 STARTER 3100C OPERATION
The first time you use the conductivity electrode, it should be calibrated before taking any
measurement. Please also read the conductivity electrode instruction manual for reference.
WARNING Do not operate the equipment in hazardous environments. The
equipment is not explosion protected.
WARNING When using chemicals and solvents, comply with the instructions of the
chemical producer and the general lab safety rules.
4.1 Calibration
4.1.1 Selecting a standard
When using the STARTER 3100C conductivity meter, you have to select a standard for calibration
(see 3.3).
Press and hold the enter setup mode, after press to confirm the temperature
unit and value. Then the current standard blinks. Use or buttons to select the
standards, press to confirm. Press to leave the setup mode.
The 4 predefined standards are:
10 μS/cm
84 μS/cm
1413 μS/cm
12.88 mS/cm
Tables for automatic temperature compensation are programmed in the meter for each standard
(see appendix).
4.1.2 Performing a calibration
When performing calibration, Ohaus recommends using Auto End Point Mode. After powering
the meter on, be sure the top of the screen shows to ensure the meter is in Auto End point
Mode.
Auto or Manual End point Mode:
oPress and hold to change the End Point Mode.
oWhen in Manual Mode, to manually reach a pH measurement or calibration value,
you need to press button- when reading is stable and displays :
then the sample reading or calibration value freezes, blinks 3 times and
freezes on the display.
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STARTER 3100C Bench Conductivity Meter EN-11
oWhen in Auto End Point Mode, the meter determines when the reading is stable
then displays and locks the reading or calibration value automatically, the reading
freezes and blinks 3 times then disappears; blinks 3 times and freezes
on the display.
Place the conductivity sensor in the selected calibration standard, wait 10-15s, then press
.
The calibration icon and the measurement icon appear on the display. The icon is
blinking during calibration measurement. The meter reaches endpoint automatically according to
the preselected auto-endpoint mode after the signal has stabilized.
When the calibration is finished, the standard value is displayed and stored; the measurement
icon blinks 3 times and disappears.
To finish the calibration and return to the sample measurement, press . The cell
constant is then shown on the display for 3 seconds.
Note:
To ensure the most accurate conductivity readings, you should verify your cell constant with a
standard solution before measurement and recalibrate if necessary. Always use fresh standards.
For STCON3 the normal cell constant range is 1.50 –2.00. (e.g. 1.71 /cm) if the cell constant is
outside the range due to an improper calibration, you may need to recover factory settings (see
5.4), then repeat calibration.
4.2 Sample measurement
Place the conductivity sensor in the sample, wait 10-15s, then press to start the
measurement. The measurement icon appears on the display. The measurement icon is
blinking during measurement and the display shows the conductivity of the sample.
When it reaches endpoint (auto endpoint or manual endpoint), you can record the result.
Stability criterion for conductivity measurement: The sensor input signal of the meter may not
change by more than 0.4% from the measured average conductivity of the probe in 6 seconds.
4.3 TDS and Salinity measurement
To perform a TDS or salinity measurement, follow the same procedure as for a conductivity
measurement. Press to switch between conductivity and TDS measurement mode.
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EN-12 STARTER 3100C Bench Conductivity Meter
4.4 Using the memory
4.4.1 Storing a reading
The STARTER 3100C can store up to 99 endpoint results.
Press when the measurement reaches endpoint. M01 indicates that one result has
been stored.
If you press when M99 is displayed, FUL displays to indicate the memory is full. To store
further data you will have to clear the memory. (See 3.4.3)
4.4.2 Recalling from memory
Press and hold to recall the stored values from memory when the current
measurement reaches endpoint.
Press or to scroll through the stored results. R01 to R99 indicates which result
is being displayed.
Press to exit.
4.4.3 Clearing the memory
Pressing or to scroll through the stored results until “MRCL”appears.
Press , CLr blinks;
Now we can two choices:
Press to confirm the deletion of all the stored data.
Press to return to the measurement mode without deleting the memory.
4.5 Printing
If a printer (e.g. SF-F40A) is connected to the STARTER 3100C, a print-out is automatically
generated after each end pointed measurement or calibration. (printer baud rate 9600bps; 8 data
bit; none parity bit; 1 stop bit)
The format for the print-out following a Cond. measurement is:
End Point, Value, Temp., ATC/MTC
Auto EP, 68.8μS/cm, 26.8°C , ATC
Ref.25°C , T.Comp.Coeff. 2.00%/°C
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STARTER 3100C Bench Conductivity Meter EN-13
The details for the second line are:
Auto EP, 85.1μS/cm, 26.8°C, ATC
| | | |---- Auto Temp. Compensation
| | |----------------Temperature value and unit
| |------------------------- Conductivity value
|---------------------------------------- Auto End Point
The details for the third line are:
Ref.25°C , T.Comp.Coeff. 2.00%/°C
| |
| |---------------- Temperature compensation coefficient value
|------------------------------------------- Reference temperature, 20 or 25 °C
The format for the print-out following a TDS measurement is:
End Point, Value, Temp., ATC/MTC
Manual EP, 38.0mg/L, 23.2°C , ATC
Ref.25°C , T.Comp.Coeff. 2.00%/°C
TDS-F 0.5
The format for the print-out following a Salinity measurement is:
End Point, Value, Temp., ATC/MTC
Manual EP, 0.08psu, 25.0°C , MTC
The print-out in case of an error message is:
End Point, Value, Temp., ATC/MTC
Error4
The print-out for a successful calibration is:
Standard: 1413μS/cm
Temperature: 30.0 °C
Calibration value: 1552μS/cm
Cell Constant: 1.66 cm-1
ATC/MTC: ATC
Printing from memory When scrolling through the memory you can print the entry that is currently
viewed by pressing and holding for 2 seconds. The printout format is followings:
Recall 08:
EndPoint, Value, Temp., ATC/MTC
Auto EP, 68.8μS/cm, 26.8°C , ATC
Ref.25°C , T.Comp.Coeff. 2.00%/°C
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EN-14 STARTER 3100C Bench Conductivity Meter
5 MAINTENANCE
5.1 Error message
Error 0
Memory access error
Reset to factory settings
Error 1
Self-diagnosis failed
Repeat the self-diagnosis procedure and make
sure that you finish pressing all five keys within
two minutes.
Error 2
Measured values out of range
C:
> 199.9 mS/cm
TDS:
< 0.1 mg/L or > 199.9 g/L
SAL: > 100.0 psu
Make if the electrode is properly connected
an
d placed in the sample solution
Error 3
Measured standard temperature
out of range (5 ... 35 °C)
Keep the standard temperature within the
range for calibration
Error 4
Measuring temperature out of
range (0 ... 100
°C)
Check if the electrode is properly connected
and keep the sample temperature within the
range
Error 9
The current data set has already
been stored once
An endpoint reading can only be stored once.
Perform a new measurement to store.
If there is an error, the meter will beep 3 times to alert.
5.2 Meter maintenance
Never unscrew the two halves of the housing!
The STARTER 3100C does not require any maintenance. To clean, use a damp cloth.
The housing is made of acrylonitrile butadiene styrene (ABS). This material is susceptible to
damage by some organic solvents, such as toluene, xylene and methyl ethyl ketone (MEK). Any
spillage should be immediately wiped off.
5.3 Self diagnosis
Press and hold and simultaneously until the meter displays the full screen.
Each icon blinks one after the other. This way you may check whether all icons are correctly
shown. The next step is to check that the keys are functioning correctly. This requires user
interaction.
When b
b
blinks, five icons are displayed. Press the 6 keys in any order. Each time you press a key
an icon disappears from the screen, continue to press the other keys until all the icons have
disappeared.
When the self-diagnosis has been completed successfully, PAS appears. If self-diagnosis fails,
error message Err 1 appears .
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STARTER 3100C Bench Conductivity Meter EN-15
Note:
You have to finish pressing all five keys within two minutes, otherwise Err 1 appears and you will
have to repeat the procedure.
5.4 Recover Factory Setup
When the meter is off , press and hold & & together for 3
seconds, the screen displays and blinks, means “Reset”. Then we have 2 choice:
Press to reset factory settings (MTC, slope and offset, etc.), display
then restart the meter.
Or press to quit the setting, display then turn off the meter.
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EN-16 STARTER 3100C Bench Conductivity Meter
6 TECHNICAL DATA
6.1 Specifications
Ambient conditions
xIndoor use only
xAltitude: Up to 2000 m
xSpecified Temperature range: 5°C to 40°C
xHumidity: maximum relative humidity 80 % for temperatures up to 30°C decreasing linearly to
50% relative humidity at 40°C
xMains supply voltage fluctuations: up to ±10% of the nominal voltage
xInstallation category II
xPollution degree: 2
xOperability is assured at ambient temperatures between 5°C to 40°C
Model
ST3100C
Measuring range
0.0 μS/cm…199.9 mS/cm
0.1 mg/l…199.9 g/l (TDS)
0.00 ...
100.0 psu (Salinity)
0 °C…100 °C
Resolution
Automatic range
0.1 °C
Error limits/Accuracy
± 0.5 % of the measured value
± 0.3 °C
Calibration
1 point
4 predefined standards
Memory
99 measurements
The last calibration data
Power supply
AC Adapter Input: 100-240V ~ X.XA 50/60 Hz
AC Adapter Output: 12V ¯X.XA
Size/weight
220 W x 175 D x 78 H mm / 0.75 kg
Display
White backlit Liquid crystal
Input
Mini-Din
Temperature-compensation
Linear: 0.00 %/°C…10.00 %/°C
Reference temperature: 20 & 25 °C
Housing
ABS
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STARTER 3100C Bench Conductivity Meter EN-17
6.2 Compliance
This product conforms to the EMC Directive 2004/108/EC and the Low Voltage
Directive 2006/95/EC.
In conformance with the European Directive 2002/96/EC on Waste Electrical
and Electronic Equipment (WEEE) this device may not be disposed of in
domestic waste. This also applies to countries outside the EU, per their specific
requirements. Please dispose of this product in accordance with local
regulations at the collecting point specified for electrical and electronic
equipment. If you have any questions, please contact the responsible authority
or the distributor from which you purchased this device. Should this device be
passed on to other parties (for private or professional use), the content of this
regulation must also be related.Thank you for your contribution to
environmental protection.
FCC Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
ISO 9001 Registration
In 1994, OHAUS Corporation, USA, was awarded a certificate of registration to ISO 9001 by
Bureau Veritus Quality International (BVQI), confirming that the OHAUS quality
management system is compliant with the ISO 9001 standards requirements. On June 21,
2012, OHAUS Corporation, USA, was re-registered to the ISO 9001:2008 standard.
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EN-18 STARTER 3100C Bench Conductivity Meter
7 APPENDIX
7.1 Conductivity standards
T(°C)
10 μS/cm
84 μS/cm
1413 μS/cm
12.88 mS/cm
5
6.1 μS/cm
53 μS/cm
896 μS/cm
8.22 mS/cm
10
7.0 μS/cm
60 μS/cm
1020 μS/cm
9.33 mS/cm
15
8.0 μS/cm
68 μS/cm
1147 μS/cm
10.48 mS/cm
20
9.0 μS/cm
76 μS/cm
1278 μS/cm
11.67 mS/cm
25
10.0 μS/cm
84 μS/cm
1413 μS/cm
12.88 mS/cm
30
11.0 μS/cm
92 μS/cm
1552 μS/cm
14.12 mS/cm
35
12.1 μS/cm
101 μS/cm
1667 μS/cm
15.39 mS/cm
7.2 Examples of temperature coefficients (α-value)
Substance at 25 °C
Concentration [%]
Temperature coefficient α[%/°C]
HCl
10
1.56
KCl
10
1.88
CH3COOH
10
1.69
NaCl
10
2.14
H2SO4
10
1.28
HF
1.5
7.20
α-coefficients of conductivity standards for a calculation to reference temperature of 25°C
Standard
Measurement
temp.: 15°C
Measurement
temp.: 20°C
Measurement
temp.: 30°C
Measurement
temp.: 35°C
84 μS/cm
1.95
1.95
1.95
2.01
1413 μS/cm
1.94
1.94
1.94
1.99
12.88 mS/cm
1.90
1.89
1.91
1.95
7.3 Conductivity to TDS conversion factors
Conductivity
At 25 °C
TDS KCl
TDS NaCl
ppm value
Factor
ppm value
Factor
84 μS
40.38
0.5048
38.04
0.4755
447 μS
225.6
0.5047
215.5
0.4822
1413 μS
744.7
0.527
702.1
0.4969
1500 μS
757.1
0.5047
737.1
0.4914
8974 μS
5101
0.5685
4487
0.5000
12.88 μS
7447
0.5782
7230
0.5613
15 μS
8759
0.5839
8532
0.5688
80 mS
52.168
0.6521
48.384
0.6048
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