Ponpe 8351 Bedienungsanleitung

OPERATION MANUAL

PEN TYPE

WATER QUALITY

METER

Model:

8361, Cond.&TDS meter

8351, Cond. meter

8371, Salinity meter

INTRODUCTION

Congratulations on your purchase of

this pen type meter. Please read the

manual completely before using this meter.

Filing and keeping the manual for future

reference. Recommended to soak the

electrode for at least 30 min. before using

to clear up the lazy effect.

Features:

IP65 Waterproof housing.

Dual display with ATC

Data hold to freeze readings.

Pen size, easy to fit in pocket.

Low battery indicator.

Auto power off.

C/F unit switchable.

Power by 4pcs LR44 batteries.

Multi points calibration.

One touch only for calibration.

MATERIAL SUPPLIED

This package contains:

The meter x 1

LR44 button battery x 4

Operation manual

Color box or plain box

POWER SUPPLY

The meter is powered by 4 pcs LR44

batteries. To check the battery when:

1. First time use

The battery symbol appears on LCD

The meter can not power on

To install the batteries:

1. Turn off the meter.

3. Replace the old batteries with four new

button cells LR44.

Loose the battery cover in counter-

clockwise direction. (DON'T discard the

black washer!)

4. Make sure the batteries are in place

and the polarity is correct.

5. Put back the battery cover and

turn it

tightly in clockwise direction.

1. Remove battery from instruments

that you do not plan to use for a

month or more. Do not leave battery

in instrument.

NOTE:

LCD DISPLAY

-The 1st display

shows the measured

reading.

-The 2nd display

shows the reading

of temp.

-Cal=Calibration mode

-Hold=Data hold

-uS or mS is the unit

of Conductivity

-ppt or ppm is the unit

of TDS and Salinity

-C or F is the unit of

liquid temprature

- is the battery low

icon

8351/8371 8361

KEYPAD

OPERATION

1. Remove the probe cover from meter

to expose the electrode out.

2. Press “ " to power on the meter.

LCD will display parameters (ex: tnr,

tCo, tds, rAn) in turns and then enter

normal display.

Remove the cover

from the bottom

of meter to expose

the electrode.

Electrode

The meter is default in auto-ranging

status once powered on.

Auto-ranging determines and selects

a range which gives you the greatest

resolution and accuracy. Alternatively,

you can manually select the ranges.

For example, if you prefer the meter

to display a reading as 0.50 mS

instead of 500 µS, you just need to

press “ “ m

select 19.99 mS range when you

are in normal measurement mode.

ore than 2 seconds

NOTE:

Accuracy is a percent of full-scale,

so using your meter in the lowest

range will result in the greatest

accuracy.

The LCD will display E02/E03 if the

measured value is below or over the

limit value, please re-select the range.

See page 12

for the detail

Set the temperature coefficient to

the right value. The meter is factory

set to 2.1% per °C and this normally

can provide good results. See page

9 to set the temperature coefficient

if needed.

Select the normalization temperature.

The meter is factory set to 25 °C. If

you need to normalize the meter to

20 °C, see page 9

Rinse the probe with deionized or

distilled water before use to remove

any impurities adhering to the

electrode. If the meter is not

used for a long time, please soak the

probe more than 30 minutes to clear

up the lazy effect of probe.

Dip the probe into the sample. Make

sure there are no air bubbles trapped

in the slot of the probe. To remove

air bubbles, give the probe a gentle

stir. Making sure the electrode tip

is submerged when you stir it.

Stir the probe gently in the sample

to create a homogenous sample.

Allow a few seconds to reach temp.

equilibrium. (Wait about 15 minutes

can get a stable reading)

for the details.

The unit of measurement

will flash on the LCD to

indicate the meter is in

measurement mode. When

the reading is stable, the unit

will stop flashing.

8351

“ "

Press to freeze

current readings. The text

"Hold" will appear on the

LCD. P ress " " again to

release.

8351

In 8361 measurement mode, press

" " to switch to conductivity or TDS

mode. The units for conductivity are

uS or mS. The units for TDS are ppm

or ppt.

Cond.

TDS

In TDS measurement mode, you can

press " " more than 2 seconds to

select manual ranging. (See details in

page11)

10.

TDS Measurement:

Set the TDS conversion factor to right

value. The factory default is 0.50.

To change the TDS factors, refer

Appendix B in page 24.

11.

Salinity Measurement:

12.

8371 is designed for salt measurement.

When in SALT mode, Built-in NaCL

conductivity to TDS conversion factor,

Temp. Coefficient and Normalization

Temperature are all fixed.

You may follow up steps 3-10 to

proceed the salt measurement.

See page 12

for the detail

13.Turn off the meter by pressing " ".

a) Make sure your electrode is clean!

b) Store the electrode carefully!

Before storage, rinse it carefully in

deionised water and store dry. Put

back the cap and store the meter

under

See the details in page 20.

0~50 C.

14.Electrode Maintenance:

This meter will shut off automatically 20

minutes of inactivity. For operating longer

time, you can disable the sleep mode.

To disable the auto power off:

NOTE:

The disable sleep mode will

be invalid after every power off.

AUTO POWER OFF

(SLEEP FUNCTION)

" "

Before power on, pressing " " +

keys simultaneously until a

"n" appeared on the screen

and then release keys to return

to normal mode.

SETUP

The advanced setup mode lets you

customized your meter’s preferences

and defaults.

14.Accuracy & Air bubbles:

The air bubbles are easy to adhere

around the gap between electrode

and meter and will affect the accuracy

a lot. See page 21 for the details of

how to remove the air bubbles.

When meter is in measurement mode,

press " " more than 2 sec to enter

setup mode. Press " "or " " or

" " to select

momentarily again to enter unit setting.

Press " " or " " to select C /F.

Press " " momentarily to confirm the

unit or press " " more than 2 sec to

return to P1.0 without saving.

After confirming the unit, you can

continuously set another temp. related

parameters (except 8371) or press

" " more than 2 seconds to return

to P1.0.

While in P1.0, press " " for more

than 2 seconds to return to measure-

ment mode.

P1.0, then press " "

Short

press

Long

press or

Long

press

P1.0: temperature parameter setting: (t)

To change the parameters, you can

press " " more than 2 sec. to enter

setup mode when the meter is in

measurement mode.

P1.1: Change temperature unit (tUt):

After saving the unit setting, the meter

will automatically enter normalization

temp. adjustment.

P1.3:

In temp. coefficient adjustment

P1.2: Normalization temp.(tnr):

Press " "or " "

to change the temperature to 20 C

or 25 C. Press " " momentarily to

confirm the value and meter will enter

next step or press " " more than 2

sec to return to P1.0 without saving.

Temp. Coefficient (tCo)

, press

" " or " " or " " to change the

temperature coefficient from 0.0 to

4.0. Press " " momentarily to

confirm the value or press " " more

than 2 sec to return to P1.0 without

confirming the P1.3 value.

NOTE:

The text P1.1, P1.2, P1.3, P2.1, P3.1

will not display on LCD.

NOTE:

P1.2, 1.3 are invalid in 8371.

P1.1 P1.2 P1.3

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