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Output (USB or
RS232 – PC or Printer
Communication)
150 & 450 Series Waterproof Handheld Meters
pH/mV Operation Instructions
Models:
pH 150
pH/mV
pH 450
pH/mV/ISE
PC 450
pH/mV/Con
PD 450
pH/mV/DO
Getting Started/Connections
After installing (2) AA batteries and/or connecting the optional 110/220
VAC power supply, connect the desired sensors to the corresponding ports.
DO: 9-Pin RDO/ATC
(PD 450 only)
A/C Power
Adapter
12 mm and 16 mm probes can utilize the Grip-Clip
or more sensors to a beaker and to the instrument as needed. The
stand can be extended as shown above or used for wall-mounting.
BNC: pH, mV/ORP
or Ion Selective
ATC/Con:
6-Pin ATC or
ATC/Conductivity
(PC 450 only)
Output (USB or
RS232 – PC or Printer
Communication)
™
to attach one
Keypad Functions
Press once to power ON in the mode that was previously
used. Press again to turn backlight on for one minute or off
(450 series only). Hold for 3 seconds to power OFF.
Toggle between measurement and calibration modes.
In SETUP mode, BACK serves to return to the previous
menu option or setting.
Confi rm calibration values in CAL mode.
Confi rm selections in SETUP mode.
Freeze or release the measured reading.
Customize instrument settings and preferences.
(See also Setup Programs)
Toggle between available measurement types.
Save measurement into memory. Increase value or scroll up
in SETUP or manual calibration.
Recall saved values from memory. Decrease value or scroll
down in SETUP or manual calibration.
Send output data to printer or computer.
(450 series only).
Setup Programs
To access the settings below, press SETUP. Up/down arrows will display the
available options. Press ENTER to accept the desired setting, or BACK to
return to the previous option and/or exit.
Confi guration Options
• Ready indicator ON / OFF / or Automatic HOLD when stable
• Choose ºCelsius or ºFahrenheit
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pH Buffer Options
• Select the desired pH Buffer Calibration Group:
USA (1.68, 4.01, 7.00, 10.01, 12.45) or
NIST (1.68, 4.01, 6.86, 9.18, 12.45) or
DIN (1.09, 3.06, 4.65, 6.79, 9.23, 12.75) or
MAN (manual adjustment of any custom pH values that are ≥1 pH unit
apart. 450 series only)
• Select number of calibration points
Select Calibration Due Reminder
• Set number of days from 0-60 for desired parameter
View Calibration Data
• Press ENTER to view each point that is calibrated.
View Electrode Data
• Press ENTER to view mV Offset and Slope % of the measured reading.
System Settings
• Data Logging:
MANUAL upon key press only
TIMED interval. Choose (SEC / MIN / HOUR) interval.
• Automatic shut off after 10 minutes. Choose ON or OFF.
• Clock Settings:
Date: Choose USA (MM/DD/YYYY) or Euro (DD/MM/YYYY).
Time: Choose (24HR or 12HR). If 12HR, choose AM or PM.
• Set Printer Type:
CSV (Comma Separated Values) – best format for computer
Printer (Text) – best format for printer.
Choose Manual (MAN) upon key press or TIMED interval.
If timed, choose (SEC / MIN / HOUR).
Reset
• NO. Exits from reset menu options without action.
• FACTORY RESET. Returns all settings except date/time and ATC
calibration to factory default values after ENTER is pressed then
restarts meter.
• DATA RESET. Erases data stored in memory while retaining other
settings after ENTER is pressed.
• CALIBRATION RESET. Erases non-ATC calibration data while retaining
other settings after ENTER is pressed.
pH Calibration
For best results, periodic calibration with known, accurate standards
is 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 pH 6.2 to pH 9.5,
calibration with 4.01, 7.00, and 10.01 standards will work well. Provide
stirring for best results. After calibration with two or more points, the active
slope segment of the measurement will be visible on the bottom display
during measurement. 100 % slope will be shown if only one calibration
point is performed and “- - -“ if no calibration is performed. The meter will
automatically return to measurement mode upon successful completion of
the number of specifi ed calibration points. To specify a different number of
pH calibration points, see pH Buffer Options.
Using Automatic Buffer Recognition
1. While in pH measurement mode, dip the pH and ATC sensor(s) into
your fi rst standard, then press CAL. The primary display will search for
the nearest standard value, while the secondary display will show the
un-adjusted value.
2. When the “READY” indicator appears, press ENTER to accept.
The primary reading will fl ash “DONE”.
3. Rinse your electrode(s) then dip into the next pH standard. The primary
display will search for the nearest standard value that has not yet
been calibrated, while the secondary display will show the unadjusted
value. When the “READY” indicator appears, press ENTER to accept.
4. To calibrate another pH standard repeat Step 3 or press MEAS to return
to pH measurement mode.
Using Manual Recognition / Custom Buffers
(450 Series Only)
1. While in pH measurement mode, dip the pH and ATC sensor(s) into your
fi rst standard then press CAL.
2. When the READY indicator appears, use up/down arrows to adjust
the primary reading to match the standard value at the measured
temperature, then press ENTER.
3. Rinse your electrode(s) then repeat Step 2 with a standard that is ≥1 pH
unit from the previous standard value.
4. To calibrate another pH standard, repeat Step 3 or press MEAS to return
to pH measurement mode.
mV Offset Adjustment
1. While in mV measurement mode, dip the ORP and ATC sensors into
a solution with a known mV value (i.e. Zobel, Light’s, quinhydrone, or
iodide/triiodide) and stir.
2. When the “READY” indicator appears, use up/down arrows to adjust the
primary reading to match the mV value at the measured temperature,
then press ENTER. The meter allows an adjustable maximum value of
±200 mV from the factory default mV value. When an offset has been
stored successfully, R.mV replaces mV.
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Temperature Calibration/Manual ATC
1. Press CAL from any measurement, then press MODE.
2. Skip to step 3 for manual ATC, otherwise, dip the temperature sensor
into a solution with a known accurate temperature. The upper display
shows the active temperature while the lower display shows the factory
default temperature without adjustment.
3. Use up/down arrows to adjust the upper display. Press ENTER to accept
the calibration temperature. The maximum adjustable value is ±10 ºC
(or ±18 ºF) from factory default.
Error Messages
“ERR” will appear when an error condition exists or the incorrect
key is pressed. Common examples include:
• Pressing ENTER during calibration before the “READY” indicator
appears. Wait for the “READY” indicator before pressing ENTER.
• UR (Under Range) • OR (Over Range)
Intended Use, Maintenance & Precautions
These handheld meters use sensors to detect various parameters for
water-based measurements. For routine maintenance disconnect the
power cord or battery, then dust or wipe the display using a damp cloth.
If necessary, warm water or a mild water based detergent can be used.
Immediately remove any spilled substance from contact with the meter
using the proper cleaning procedure for the type of spill.
• Do not use this equipment in potentially explosive atmospheres.
• Refer to the electrode instructions for use, storage and cleaning.
• Ensure that no liquid enters the instrument.
• Do not use any aggressive cleaning chemicals (solvents or similar
agents).
• There are no user serviceable parts inside. Attempts to service internal
parts may void the warranty.
• Not intended for medical applications or patient use.
• WARNING: No modifi cation of this equipment is allowed.
Instrument Operating Conditions
Operating Ambient Temp. 5 to 45 ºC
Operating Relative Humidity 5 to 85 %, non-condensing
Storage Temp. -20 to +60 ºC
Storage Relative Humidity 5 to 85 %, non-condensing
Pollution Degree 2
Overvoltage Category II
Weight 500 g
Size (L x W x H) 21.15 x 9.87 x 5.85 cm
Regulatory & Safety CE, TUV 3-1, FCC Class A
Power Rating DC Input: 9 VDC 1 A
Battery Requirement
Vibration Shipping/handling per ISTA #1A
Shock Drop test in packaging per ISTA #1A
Enclosure (Designed To Meet) IP67 (using rubber covers)
Universal Power Adapter Operating Conditions
Operating Ambient Temp. 0 to 50 ºC
Operating Relative Humidity 0 to 90 %, non-condensing
Storage Temp. -20 to +75 ºC
Storage Relative Humidity 0 to 90 %, non-condensing
Pollution Degree 2
Overvoltage Category II
Power Rating
2 x AA (LR6) 1.5 V batteries (replace
batteries when battery sign blinks)
I/P: 100 - 240 V, 50/60 Hz, 0.3A
O/P: 9 VDC 1 A
68X651901 09/15 Rev1 68X651901 09/15 Rev1
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