background image

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.

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

.

•  The calibration point was not successful. The allowable mV 

difference is 15 to 90 mV/decade.

• 

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.

• 

WARNING:

 No modification of this equipment is allowed

ISE Standard Options

•  Choose standard group:
 

GRP.1

 for 0.10, 1.00, 10.0, 100.0 & 1000 (5 points)

 

GRP.2 

for 0.20, 2.00, 20.0, 200.0 & 2000 (5 points) 

 

GRP.3

 for 0.50, 5.00, 50.0 & 500.0 (4 points) 

•  Choose number of calibration points

Select Calibration Due Reminder

 

Set number of days from 

0-60

 for desired parameter

View Calibration Data 

(for the parameter being measured)

• Press 

ENTER

 to view each point that is calibrated

View Electrode Data 

(for the parameter being measured)

• Press 

ENTER

 to view electrode data

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.

ISE Calibration

The pH 450 can measure ion concentration such as ammonia 

or fluoride when using an ion selective electrode (ISE) for 

the specific ion of interest. See 

Setup

 to select one of (3) ISE 

standard groups based on your intended standards and range. 

Use a minimum of 2 values for calibration and prepare the 

corresponding ion calibration solutions. For best results always 

begin with your lowest standard value, followed by the next 

lowest standard. 
Refer to your Ion Selective Electrode instruction manual for 

details on conditioning, storage, maintenance, calibration 

standard preparation, Ionic Strength Adjustment, trouble-

shooting, etc. Each ISE is unique and requires care and 

operation that is specific to the electrode and ion of interest.
1.  Connect the ISE and press 

MODE

 as needed to view ppm. 

The primary display will show “- - - -” without a stored  

ion calibration. 

2. Rinse the ISE with clean water and dip into your lowest 

calibration standard and stir. Press 

CAL

3. Use 

t

/

s

 keys to match the primary display to your desired 

ion calibration standard (0.10, 1.0, 10, etc). The secondary 

display is the corresponding mV.

4. Press 

ENTER

 when the reading is stable to accept the 

calibration. 

ERR

 indicates that the calibration for the 

 

current point was not successful. This occurs when the 

slope (mV change between standards) is <15 mV/decade 

or >90 mV/decade. The primary display will show the next 

highest calibration standard. Use 

t

/

keys to select a 

different ion calibration standard if needed.

5. Rinse the ISE then dip into the corresponding 

calibration standard and stir. Repeat Steps 3 & 4 as 

needed. If the number of calibration points has been 

reached, the display will return to measurement mode. 

Note:

 The mV/decade slope value will be displayed in 

during measurement mode on the lower display upon a 

successful calibration. The value corresponds to the slope 

of the active reading.

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.

pH/ISE 450 Series Waterproof Handheld Meter 

Ion Selective Electrode (ISE) Operation Instructions

XXXXXXXXXXXXXXXXXXXXXXXXXXXXX 

XXXXXXXXXXXXXXXXXXXXXXXXXXX

Part of Thermo Fisher Scientific

Part of Thermo Fisher Scientific

pH 450 

pH/mV/ISE/Temperature

Eutech Instruments Pte Ltd 

Blk 55, Ayer Rajah Crescent, 

#04-16/24, Singapore 139949 

Tel: (65) 6778-6876

Fax: (65) 6778-0086

[email protected]  

www.eutechinst.com 

Press once to power ON in the mode that was 

previously used. Press again to turn backlight 

on for one minute or off. 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. 
Confirm calibration values in CAL mode.  

Confirm 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.

Model:

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.

12 mm and 16 mm probes can utilize the

 Grip-Clip™ 

to attach 

one 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.

Keypad Functions

 

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.

Configuration Options

•  Ready indicator 

ON

 / 

OFF 

/ or Automatic

 HOLD

 when stable

• Choose 

ºC

elsius or 

ºF

ahrenheit

Oakton Instruments 

625 East Bunker Court,   

Vernon Hills, IL, 60061, USA

Tel: 1-888-462-5866

Fax: 1-847-247-2984 

[email protected]

www.4oakton.com

68X651905 08/14 Rev0

68X651905 08/14 Rev0

Spanish

BNC:  

pH, mV/ORP or  

Ion Selective

ATC:  

6-Pin ATC

A/C Power 

Adapter

Output (USB or 

RS232 – PC or Printer 

Communication)

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

2 x AA (LR6) 1.5 V batteries 

(replace batteries when 

battery sign blinks)

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

I/P: 100 - 240 V, 50/60 Hz, 0.3A 

O/P: 9 VDC 1 A

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