JENCO VisionPlus pH630 Bedienungsanleitung

Operation Manual

MODEL pH 630

Microcomputer Based

pH&Temperature

Pocket Meter

pH630

CONTENTS

INITIAL INSPECTION AND ASSEMBLY ...................2

BEFORE YOUR FIRST USE ........................…………2

A. Replace the Batteries ...........................................2

B. Soak the Electrode.... ..........................................2

C. Setup and Calibrate the Electrode and Meter............2

VISIONPLUS pH 630 OVERVIEW........................3

A. Meter Description..................................................3

B. LCD Display ..........................................................3

OPERATION MODES AND KEYPAD OPERATIONS...4

A. Operation Modes.....................................................4

B. Keypad Operations...............................................4

USING VISIONPLUS pH 630............................5

A. Power on/off ......................................................5

B. Select Buffer........................................................5

C. Calibrate pH.........................................................5

D. Measure ..............................................................6

E. Hold Data ...........................................................6

REPLACE ELECTRODE…...........................................7

ERROR DISPLAYS AND TROUBLESHOOTING …....8

SPECIFICATIONS ......................................................9

WARRANTY ...............................................................10

INITIAL INSPECTION AND ASSEMBLY

Carefully unpack the instrument and accessories. Inspect for

damages made in shipment. If any damage is found, notify your

Jenco representative immediately. All packing materials should

be saved until satisfactory operation is confirmed.

BEFORE YOUR FIRST USE

A. Replacing the Batteries

Replace the battery when the blinking

low battery indicator “ ” appears

on the upper left corner of the LCD

screen. The instrument can operate

within specifications for approximately

2~3 hours after low battery indicator

appears.

1. Shown in the right figure.

2. Take off the battery cover.

3. Remove all of the old

batteries and insert a new set

of batteries ensuring the

polarities are correct.

B. Soak the Electrode

1. Remove the electrode cap covering the VisionPlus pH 630

meter.

2. Soak the electrode in a pH 4 buffer solution for 10 minutes

before first use or after storage.

C. Setup and Calibrate the Electrode and Meter

VisionPlus pH 630 must be setup and calibrated before your

first use. Please follow the instructions detailed in section

USING VISIONPLUS pH 630 6.

VISIONPLUS pH 630 OVERVIEW

A. Meter Description

Battery cap

2. LCD screen

3. Keypad

4. Electrode collar

5. Electrode & ATC assembly

(Electrode cap is not shown.)

B. LCD Display

1. CALIBRATION buffer(s) and NUMBER of calibration point

2. LOW BATTERY indicator

3. CALIBRATION mode indicator

4. HOLD mode indicator

5. pH reading

6. TEMPERATURE reading (for ℃version) *

7. TEMPERATURE reading (for °F version) *

*℃or °F is factory pre-set.

Hold

Cal Enter

PT-70



Germany

OPERATION MODES AND KEYPAD OPERATIONS

A. Operation Modes

VisionPlus pH 630 meter has 4 operation modes:

1. Measure Mode. Measure Mode is used to make all pH

and temperature measurements.

2. Calibration Mode. Calibration Mode is used to perform

1, 2 or 3 point calibration.

3. Hold Mode. Hold Mode is used to display held measured

values for increased ease of use.

4. Buffer Select Mode. Buffer Select Mode is used to select

the buffer set, which can either be 7.00(7.00/4.01/10.01) or

6.86(6.86/4.00/9.18).

B. Keypad Operations

Key

Operation

Mode

Duration

Function

Hold

Measure

0 second

Holds current

measurement reading.

Press again to resume

measuring.

Hold

0 second

Returns to Measure

Mode.

Calibration

0 second

Leaves Calibration

Mode.

Cal

Measure

0 second

Enters Calibration Mode.

Calibration

0 second

the “HOLD” icon is displayed,

then the unit will recalibrate the

buffer.

Measure

5 seconds

or more

Enters Buffer Select Mode.

On/Off

All

0 second

Turns meter on/off.

Enter

Calibration

0 second

the “HOLD” icon is displayed,

then the unit will save the

calibration.

USING VISIONPLUS pH 630

A. Power On/Off

Press the “On/Off ” key to turn the unit on. If the unit is running

then you can press the ”On/Off “ key to turn the unit off. The unit

will automatically turn off after 30 minutes of no key activity.

B. Select Buffer

1. Make sure unit is in “Measure Mode”.

2. Press the “Cal” key for 5 seconds, the unit will display 7.00

to indicate you successfully changed from “6.86/4.00/9.18”

set to “7.00/4.01/10.01” set.

3. Press the “Cal” key for 5 seconds again, the unit will display

6.86 to indicate you successfully changed from

“7.00/4.01/10.01” set to “6.86/4.00/9.18” set.

Note: There is no need to repeat this procedure every time unless

one decides to change the buffer settings.

C. Calibrate pH

The user can select one, two or three point pH calibration.

1. Rinse the electrode & ATC assembly in distilled

water and immerse them in the first buffer solution.

The temperature displayed is the buffer temperature.

2. Press “Cal” key to initiate calibration, the buffer icon will

be on, the “HOLD” icon will flash until the unit detects a

stable reading, When a stable reading is reached, the

“HOLD” icon will be on. Press the “Enter” key to save

the calibration, wait a second, the first point has been

calibrated and the unit is ready to be sloped at the

second buffer.

[Note: At this moment, Press the “Hold” key, the unit

will exit the calibration mode. Single point calibration is

complete.]

3. Remove the electrode & ATC assembly from the first

buffer. Rinse them in distilled water and immerse them

in the second buffer solution. The unit will display the

temperature of the second buffer.

4. The first buffer icons will be on, the second and third

buffer icons will flash and the “HOLD ” icon will flash

until the unit detects a stable reading, When a stable

reading is reached, the “HOLD” icon will be on. Press

the “Enter” key to save the calibration, wait a second,

the second point has been calibrated and the unit is

ready to be sloped at the third buffer.

[Note: At this moment,Press the “Hold” key, the unit will

exit the calibration mode. Dual points calibration is

complete.]

5. Remove the electrode & ATC assembly from the second

buffer. Rinse them in distilled water and immerse them in

the third buffer solution. The unit will display the

temperature of the third buffer.

6. The first, second buffer icons will be on, the third buffer

icons will flash and the “HOLD” icon will flash until the

unit detects a stable reading, When a stable reading is

reached, the “HOLD” icon will be on. Press the “Enter”

key to save the calibration, wait a second, the third point

has been calibrated and the unit will automatically exit

the calibration mode. Three points calibration is

complete.

[Note: For accurate measurements, it is recommended

that pH calibration is preformed once a week and after

replacing the electrode.]

D. Measure

Dip the meter into the test solution in the “Measure Mode”.

E. Hold Data

1. When the pH reading is stable, press “Hold” key once to

lock the reading.

Press “Hold” key again to unlock reading and the unit will

return to “Measure Mode”. The unit is now ready for

another measurement.

REPLACE ELECTRODE

1. Unscrew the electrode collar to remove the electrode &

ATC assembly as shown in the right figure.

2. Remove the old electrode from

the electrode collar.

3. Insert a new electrode, make

sure the electrode fit back into

the meter correctly.

4. Screw back the electrode collar.

5. Soak the electrode in a pH 4 buffer solution for 10 minutes

and recalibrate the pH 630 following the instructions

detailed in section USING VISIONPLUS pH 630..

ERROR DISPLAYS AND TROUBLESHOOTING

pH LCD

Display

ATC

Display

DISPLAY

Mode

Possible cause(s)

[Action(s)]

"ovr"

Measure

Temperature >99.9°C range.

[Bring solution to a

lower temperature.]

[Replace electrode &

ATC assembly .]

"udr"

Measure

Temperature <-9.9°C range.

[Bring solution to a

higher temperature.]

[Replace electrode &

ATC assembly .]

"udr" or

"ovr"

-9.9~ 99.9°C

Measure

When pH value < 0.00pH

(udr) or >14.00pH(ovr)

[Over Range or Recalibrate.]

"ovr"

0.0 ~ 60.0°C

pH CAL

a.pH-

OFFSET

b.pH-

SLOPE

a. Offset @ 7.00pH:

mV>100mV

[email protected]pH:

mV>108.3mV

b. New slope>ideal

slope by 30%

[Use a new buffer

solution.]

[Replace electrode & ATC

assembly.]

"udr"

0.0 ~ 60.0°C

pH CAL

a.pH-

OFFSET

b.pH-

SLOPE

a. Offset @ 7.00pH:

mV<-100mV

Offset @ 6.86pH:

mV< 91.7 mV

b. New Slope<ideal

slope by 30%

[Use a new buffer

solution.]

[Replace electrode & ATC

assembly.]

"udr" or

"ovr"

-9.9~ 99.9°C

pH CAL

a.pH-

OFFSET

b.pH-

SLOPE

When buffer temperature

<0.0°C(udr) or >60.0°C(ovr)

[Bring buffer temperature

within 0 to 60°C range .]

SPECIFICATIONS

Range

Resolution

Accuracy

0.00 to 14.00 pH

0.01 pH

±0.02 pH ± 1 LSD

Temperature

Range

Resolution

Accuracy

-9.9 to 99.9 °C

14.2 to 99.9 °F

100 to 212 °F

0.1 °C

0.2 °F

1 °F

±0.3 °C

±0.6 °F

±1 °F

pH buffer recognition pH 7.00, 4.01, 10.01 or

pH 6.86, 4.00, 9.18

pH Temperature compensation

pH Buffer Temperature range

pH Electrode Offset recognition

AUTO –9.9°C (14.2°F) to

99.9 °C (212°F)

0.0°C (32.0°F) to 60.0°C

(140°F)

±100 mV at pH 7.00

+108.3 mV / -91.7 mV at pH 6.86

pH Electrode Slope recognition

±30% at pH 4.00, 4.01, 9.18 and 10.01

Input impedance >10

Temperature

Temperature sensor Thermistor, 10 k

at 25°C

Temperature unit Factory pre-set

General

Power: LR44 x 4

Battery life: 200 Hours

Ambient temperature range 0.0 to 50.0 °C

Display(pH/TEMP): pH:7.43 mm high

TEMP:5.74mm high

Case IP67 water-tight case

Weight 105 g

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