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Tequipment PH-222 Operating Manual

Ph meter
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Pen type, with electrode, ATC
PH METER
Model : PH-222
OPERATION MANUAL
Your purchase of this PH
METER
marks
forward for you into the
f i e l d
o f
p r e c i s i o n
measurement.
this METER is a complex
and delicate instrument,
its durable structure will
allow many years of use
if
proper
operating
t e c h n i q u e s
developed.
Please
t h e
f o l l o w i n g
instructions
and
always
keep
manual
within
reach.
a
step
Although
a r e
read
carefully
this
easy

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Summary of Contents for Tequipment PH-222

  • Page 1 Pen type, with electrode, ATC PH METER Model : PH-222 Your purchase of this PH METER marks step forward for you into the f i e l d p r e c i s i o n measurement. Although this METER is a complex...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. FEATURES..............1 2. SPECIFICATIONS............1 3. FRONT PANEL DESCRIPTIONS........4 3-1 Display............... 4 3-2 Power ( Logger, ) Button......... ▲ 3-3 Hold ( Enter, CAL ) button ........4 3-4 REC ( button, ) Button......℃ ℉ ▼...

  • Page 3: Features

    1. FEATURES * Pen type digital pH meter, all in one, pH electrode is included, easy for general purpose application. * Build in temperature sensor, ATC ( auto temperature compensation ). * pH 4, pH 7 standard solution are standard accessories. * Easy to change the pH electrode.

  • Page 4: Specifications

    2. SPECIFICATIONS Display LCD, size : 20 mm x 28 mm. * With bar graph indicator. Measurement 0 to 14 pH. Range Temp. -5 to 80 ( 23 to 176 ℃ ℉ Resolution 0.01 pH. Temp. / 0.1 ℃ ℉ Accuracy ±...
  • Page 5 Data Logger Max. can save 100 point data with recall. Manual, push the data logger button once will save data one time. Circuit Custom one-chip of microprocessor LSI circuit. Operating Meter : Temperature 0 to 60 ( 32 to 140 ℃...

  • Page 6: Front Panel Descriptions

    3. FRONT PANEL DESCRIPTION 3-1 Display 3-2 Power ( Logger, ) Button ▲ 3-3 Hold ( Enter, CAL ) button 3-4 REC ( button, ) Button ℃ ℉ ▼ 3-5 pH electrode ( Temp. sensor ) 3-6 Battery compartment/Cover 3-7 Protection cover 3-8 pH 7.00 buffer solution, PH-07A 3-9 pH 4.00 buffer solution, PH-04A...

  • Page 7: Ph Calibrating Procedure

    4. pH CALIBRATING PROCEDURE 4-1 Calibrating Consideration The pH meter already calibrated by mV signal that simulated from the ideal pH ELECTRODE mV output ( base on 25 environment ). However due to (a) An ℃ ideal electrode will produce 0 mV at pH 7.00, but most electrodes are slightly off.
  • Page 8 screen 1 flashing screen 2 7.00 flash screen 3 7.00 flashing screen 4 screen 5 ( return to normal screen ) 7.00...
  • Page 9 pH 4 calibration 1)Rinse the electrode in distilled water. Place electrode into buffer pH 4.00 solution. 2)All the calibration procedures are same as the above pH calibration, except : a. Change the buffer solution to pH 4.00 ( PH-04A ). b.

  • Page 10: Measuring Procedure

    5. MEASURING PROCEDURE 5-1 pH measurement After the the pH electrode is calibrated ( section 4-3 ) , the unit is ready for measuring. 1)Power on the meter by pressing the " Power button " ( 3-2, Fig. 1 ). 2)Place the electrode into the measured solution, little shake the electrode and wait a few seconds to let the ATC ( automatic temperature compensation ) sensor...

  • Page 11: Data Record ( Max., Min. Reading )

    5-3 Data Record ( Max., Min. reading ) 1) The data record function records the maximum and minimum readings. Press the " REC Button " ( 3-4, Fig. 1 ) momentarily to start the Data Record function, shows " REC " on the display. 2)With the "...

  • Page 12: Data Logger

    6. DATA LOGGER The meter can save max. 100 point data into the the memory circuit 6-1 Save data 1)Turn on the meter. 2)Press the " REC Button " ( 3-4, Fig. 1 ) momentarily, shows " REC " on the display. 3)Press the "...

  • Page 13: Call Data

    6-2 Call data 1)Turn on the meter. Press the " Hold Button " ( 3-3, Fig. 1 ) momentarily, LCD shows " HOLD ". Following, press the " REC Button " ( 3-4, Fig. 1 ) continuously until display shows follwing , then release the button.

  • Page 14: Delete Data ( Empty The Memory )

    6-3 Delete data ( Empty the memory ) 1)Turn off the meter first. 2)Press the " REC Button " ( 3-4, Fig. 1 ) continuously and not release, at the same time press the " Power Button " ( 3-2, Fig. 1 ) momentarily, the display will show following screen, then release both fingers from the buttons.

  • Page 15: Replacement Of Battery

    7. REPLACEMENT OF BATTERY 1)When the LCD display show " " , It is necessary to replace the battery. However, in-spec measurement may still be made for several hours after Low Battery Indicator appears before the instruments instrument become inaccurate. 2)To replace the battery, rotate and remove the "...

  • Page 16: Optional Accessories

    9. OPTIONAL ACCESSORIES pH ELECTRODE Model : PE-12 General purpose & high quality pH electrode with BNC connector. Range : 1 to 13 pH ( typical 0 to 14 pH ). pH 7.00 buffer solution Model : PH-07A pH 4.00 buffer solution Model : PH-04A CARRYING CASE Model : CA-06 Hard carrying case.

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