Lutron Electronics PCE-228 User manual

pH/mV

SD card real time data logger

pH METER

Model : PCE-228

Your purchase of this

pH METER with SD

CARD DATA LOGGER

marks a step forward for

you into the field of

precision measurement.

Although this meter a

complex and delicate

instrument, its durable

structure will allow

many years of use if

p r o p e r o p e r a t i n g

t e c h n i q u e s a r e

developed. Please read

t h e f o l l o w i n g

instructions carefully

and always keep this

manual within easy

reach.

OPERATION MANUAL

TABLE OF CONTENTS

1. FEATURES..............................................................................

2. SPECIFICATIONS........................................................................

2-1 General Specifications................................................................

2-2 Electrical Specifications.........................................

3. FRONT PANEL DESCRIPTION...........................................................................

4. pH/mV MEASURING and CALIBRATION

PROCEDURE....................................................................

4-1 pH measurement ( manual Temp. compensation )......................

4-2 pH measurement ( ATC , automatic Temperature )....................

4-3 mV Measurement......................................................................

4-4 pH calibration .....................................................................

5. OTHER FUNCTION....................................................................

5-1 Data Hold.........................................................................................

5-2 Record ( Max./ Min. reading )....................................................................

5-3 LCD Backlight ON/OFF....................................................................

6. DATALOGGER................................................................................

6-1 Preparation before execute datalogger function...............................................................................

6-2 Auto Datalogger ( Set sampling time 1 second ).......................≧

6-3 Manual Datalogger ( Set sampling time = 0 second ).....................

6-4 Check time information...............................................................................

6-5 Check sampling time information...............................................................................

6-6 SD Card Data structure.......................................................................

7. Saving data from the SD card to the computer........................

8. ADVANCED SETTING...............................................................................

9. POWER SUPPLY from DC ADAPTER.....................................................

10. BATTERY REPLACEMENT.............................................................

11. SYSTEM RESET.................................................................................

12. RS232 PC SERIAL INTERFACE.....................................................

13. OPTIONAL ACCESSORIES.........................................................

14. PATENT.....................................................................................

1. FEATURES

* pH : 0 to 14.00 pH, mV ( ORP ) : ± 1999 mV.

* pH measurement can select ATC or manual Temp. adj..

* Optional ATC probe for pH measurement.

* pH measurement can make the auto calibration for

pH 7, pH 4 and pH 10 or other value.

* Real time SD memory card Datalogger, it Built-in Clock

and Calendar, sampling time set from 1 sec to 8 hour

59 min. 59 sec.

* Manual datalogger is available ( set the sampling

time to 0 ), during execute the manual datalogger

function, it can set the different position ( location ) No.

( position 1 to position 99 ).

* Innovation and easy operation, computer is not need to

setup extra software, after execute datalogger, just take

away the SD card from the meter and plug in the SD card

into the computer, it can down load the all the measured

value with the time information ( year/month/date/

hour/minute/second ) to the Excel directly, then user can

make the further data or graphic analysis by themselves.

* SD card capacity : 1 GB to 16 GB.

* LCD with green light backlight, easy reading.

* Can default auto power off or manual power off.

* Data hold, record max. and min. reading.

* Microcomputer circuit, high accuracy.

* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.

* RS232/USB PC COMPUTER interface.

* Wide applications: water conditioning, aquariums,

beverage, fish hatcheries, food processing, photography,

laboratory, paper industry, plating industry, quality

control, school & college, water conditioning.

2. SPECIFICATIONS

2-1 General Specifications

Circuit Custom one-chip of microprocessor LSI

circuit.

Display LCD size : 52 mm x 38 mm

LCD with green backlight ( ON/OFF ).

Measurement pH

Function ORP ( mV )

Datalogger Auto 1 sec to 8 hour 59 min. 59 sec.

Sampling Time

@Sampling time can set to 1 second,

Setting range

but memory data may loss.

Manual Push the data logger button

once will save data one time.

@Set the sampling time to

0 second.

@Manual mode, can also select the

1 to 99 position ( Location ) no.

Memory Card SD memory card. 1 GB to 16 GB.

Advanced

* SD memory card Format

setting

* Set clock time ( Year/Month/Date,

Hour/Minute/ Second )

* Set sampling time

* Auto power OFF management

* Set beep Sound ON/OFF

* Decimal point of SD card setting

* Set temperature unit to or ℃ ℉

* Set pH manual Temp. compensation value

Data Hold Freeze the display reading.

Memory Recall Maximum & Minimum value.

Sampling Time Approx. 1 second.

of Display

Data Output RS 232/USB PC computer interface.

*Connect the optional RS232 cable

UPCB-02 will get the RS232 plug.

*Connect the optional USB cable

USB-01 will get the USB plug.

Operating 0 to 50 .℃

Temperature

Operating Less than 85% R.H.

Humidity

Power Supply

* AC/DC power adapter is optional.

Alkaline or heavy duty DC 1.5 V battery

( UM3, AA ) x 6 PCs, or equivalent.

* AC/DC power adapter is optional.

DC 9V adapter input. ( AC/DC power

adapter is optional ).

Power Current Normal operation ( w/o SD card save

data and LCD Backlight is OFF) :

Approx. DC 14 mA.

When SD card save the data and LCD

Backlight is OFF) :

Approx. DC 37 mA.

* AC/DC power adapter is optional.

If LCD backlight on, the power

consumption will increase approx.

12 mA.

Weight 489 g/1.08 LB.

Dimension 177 x 68 x 45 mm (7.0 x 2.7x 1.9 inch)

Accessories *

Instruction manual..............................

1 PC

Included

Optional * PH electrode.......................

Accessories PE-03, PE-11, PE-01, PE-02, PE-07,

PE-06HD, PE-04HD, PE-05T, PE-03K7

ATC Temp. probe.....................

TP-07

* pH 7 buffer solution............. PH-07

* pH 4 buffer solution............. PH-04

ORP Electrode...........................

ORP-14

Hard carrying case..................................

CA-06

Soft carrying case..................................

CA-05A

SD memory card ( 1 GB )

SD memory card ( 2 GB )

AC to DC 9V adapter.

USB cable, USB-01.

RS232 cable, UPCB-02.

Data Acquisition software,SW-U801-WIN.

2-2 Electrical Specifications (23± 5 )℃

pH Optional,

Electrode Any pH electrode with BNC connector.

Measurement pH 0 to 14 pH

mV -1999 mV to 1999 mV

Input 10^12 ohm

Impedance

Temperature Manual 0 to 100 , be adjusted by℃

Compensation push button on front panel.

for pH Automatic With the optional temperature

measurement ( ATC ) probe ( TP-07 )

0 to 65 .℃

pH pH7, pH4, and pH10, 3 points calibration

Calibration ensure the best linearity and accuracy.

Measurement

Range Resolution Accuracy

pH 0 to 14 pH 0.01 pH ± (0.02 pH + 2 d)

mV ( ORP ) 0 to 1999 mV 1 mV ± (0.5% + 2 d)

*pH accuracy is based on calibrated meter only.

3. FRONT PANEL DESCRIPTION

3-1 Display

3-2 Power Button ( Backlight Button )

3-3 Hold Button ( ESC Button )

3-4 REC Button ( Enter Button )

3-5 Button ▲

3-6 Button ( Function Button )▼

3-7 Time Button

3-8 Logger Button ( SET Button, Sampling check )

3-9 Stand

3-10 Battery Compartment/Cover

3-11 Battery Cover Screw

3-12 Tripod Fix Nut

3-13 Temp. Socket ( pH ATC Socket )

3-14 pH Socket ( BNC Socket )

3-15 DC 9V Power Adapter Input Socket

3-16 Reset Button

3-17 RS-232 Output Terminal

3-18 SD card socket

4. pH/mV MEASURING and

CALIBRATION PROCEDURE

The meter default function are following :

* The display unit is set to pH.

* The temperature unit is set to .℃

* Manual ATC ( without connect the ATC probe )

* Auto power off.

* The sampling time of data logger function is

2 seconds.

Fig. 2

If the meter is first time to connect

the pH electrode, it should make the

calibration before operation, the

calibration procedures refer to

chapter 4-4, page 9.

4-1 pH measurement ( manual Temp. compensation )

1)Power on the meter by pressing " Power Button "

( 3-2, Fig. 1 ) once.

2)Prepare the pH Electrode ( optional ), install the

" Probe Plug " ( 4-1, Fig. 2 ) into the " pH Socket/BNC

Socket " ( 3-14, Fig. 1 ).

3)Adjust the manual Temp. value same as the

solution's temperature exactly, the procedures

refer chapter 8-8, page 25.

4)Hold the " Electrode Handle " ( 4-2, Fig. 2 ) by hand

and let the " Sensing head " ( 4-3, Fig. 2 ) immersed

wholly into the measured solution and little shake the

electrode.

5)The main display will show the pH value, the

bottom display will show the setting manual Temp.

value.

4-2 pH measurement ( ATC , automatic Temperature )

1)All the procedures are same as

5-1 pH measurement ( manual Temp. compensation)

but should prepare one temperature probe ( optional,

TP-07 ), insert the TP-07's plug into the " Temp. Socket "

( 3-13, Fig. 1 ), immerse the sensing head of temperature

probe ( TP-07 ) into the measurement solution.

2)The main display will show the pH value, the bottom

display will show the sensing Temp. value of the

measured solution ( measured from ATC probe, TP-07 ).

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