Trans instruments WalkLAB HP 9010 User manual

15,0,11,4,1,14,5,10,13,2,9,6,3,12,7,8

15,0,15,0,1,14,1,14,13,2,13,2,3,12,3,12,11,4,11,4,5,10,5,10,9,6,9,6,7,8,7,8

WalkLAB

Professional pH Meter

HP 9010

Operations Manual

INTRODUCTION

Your purchase of this professional pH meter marks a step forward for

you into the field of precision measurement Although this meter is a

complex and delicate instrument, its usability will allow many years of

use if proper operating techniques are observe and practice

1. FEATURES:

•Multiple display of pH, mV and temperature

•Automatic buffer recognition with built in ISO and NIST standard

•Manual setting of customize pH buffer standard

•Up to 5 points calibration

•Auto-lock / automatic-endpoint detection function

•99 memory with real time clock recording

•RS232 online data logging to PC (sold separately)

2. CONTENT:

Carefully unpack the box It should contain the following items:

a Main unit

b Combination pH electrode

c Temperature probe

d Calibration buffer solution pH7 00 & pH4 01 of 90ml each

e Operations manual

3. SPECIFICATION:

p mV Temperature

Range

-2 to 16 pH

±700 0mV

±2,000mV

0 to 120ºC

Resolution

0 01pH 0 1mV 1mV 0 1ºC

Accuracy

±0 02pH ±0 5mV ±2mV ±0 1 ºC

±0 5ºC (Probe)

Calibration

Min 2 point, Max 5 point

Buffer Recognition

up to 60ºC or 95ºC depending on buffer type

Automatic

Temperature

Compensation

pH electrode temperature error compensation

0 to 120ºC

Memory

99 data with real time clock

Power source

4 x 1 5Volt AAA size battery

Operating

temperature

5 to 40ºC

Storage temperature

-20 to 60ºC

Operating humidity

Up to 95% RH

TO CLOSE BATTERY COVER

1 Align arrow to top of casing

2 Press

here

to snap down cover

4. PRODUCT LAYOUT:

pH Electrode

Socket

Temperature

Probe Socket

Battery Cover

Lift up

latch

here to

open

Battery

Cover

On/Off Button

Press once to switch ON.

To switch OFF, press and hold-down.

Liquid

Crystal

Display

Buttons

correlate

to display

Legend

5. DISPLAY PANEL:

Display put on

hold or freezed

8888

-188.8

D A

Y M O N T H

Y E A R

88 18 : 88

RECALL

EXIT

M+

CAL

ENTER

SETUP

MODE

READ

ºC

ºF

SELECT

Memory

Thousand Feet

Thousand Meter

ppt

ppm

kPa

ION

Cond

Salinity

TDS

µS

. .

ATC

Auto Lock

HOLD

Button keys legend

(correlate to button key)

Indicator will blink while the

function mode is active.

Date or Time

display

Low

battery

indicator

Memory

counter

Automatic

Temperature

Compensation

indicator

lock

indicator

Measuring

mode

indicator

Temperature

reading

SETUP Sub-

display

indicator

6SETTING UP T E UNIT:

6 1 Before you begin using the unit, it is important to define your

measuring requirements This will allow the unit to display

accurately on the condition of sample that is measured

6 2 While the unit is switched ON, press the SELECT button once and the

Button Keys Legend will show SETUP appear

6 3 Press the SETUP key to enter setup mode

6 4 Display will show SETUP blinking, indicating you are in setup mode

6 5 Press the SELECT button up to move to next setting or down to the

previous setting parameter displayed on screen

6 6 After setting, meter will retain the info until you reset them

6 7 Below are the description for each setting parameter:

* Anytime during setup, press EXIT to cancel the setting.

Alc

- AUTO LOCK SETTING

Auto-lock feature allows the meter to automatically

sense a stabilized reading and locks the endpoint

reading Factory preset is Yes

YesYes

Yes.

1. Press the ENTER key to set; display will show

Yes

Yes Yes

Yes

blinking

2. Press the SELECT key up or down to choose

between

yes

yesyes

yes

and

nono

3. Press the ENTER key to confirm

4. Press the SELECT key up for next setting

- DATA TRANSMISSION TO PC

(Note: will not appear if no data saved)

This setting allows you to download saved memory

data to PC via the RS232 connector & CD software

kit (connector & software kit sold separately)

1 Download the software and run on PC

2 Follow the CD instructions to setup software and

PC connection with RS232 connector

3 Press the ENTER key and display will alternate

between

trtr

and

out

outout

out

, indicate transfer in progress

4 When display return to

trtr

, transfer completed

Check the PC for the transferred file

5. Press the SELECT key up for next setting

SETUP

ENTER

SELECT

EXIT

Yes

ALc

SETUP

ENTER

SELECT

EXIT

Auto Lock

Bvf

- CALIBATION BUFFER STANDARDS

This setting allows you to select ISO, NIST or customized

buffer standard Factory preset is ISO standard

ISO (I

ISO

SOSO

SO)buffer standards are pH1 68, 7 00, 4 01, 10 01,

12 45 and NIST (I7

I7I7

I7 I

I I

ISt

StSt

St) buffer standards are pH1 68,

4 01, 6 86, 9 18 and 12 45, which are preset in this

meter, and will be automatically recognized during

calibration

Select customize (CvSt

CvStCvSt

CvSt) if you have other standards

other than standard buffer solutions

1. Press the ENTER key to set; display will show I

ISO

SOSO

blinking.

2 Press the SELECT key up or down to select from I

ISO

SOSO

SO,

I7I7

I7 I

I I

Ist

stst

st or CvSt

CvStCvSt

CvSt and press the ENTER key to confirm

Press the SELECT key up for next setting.

stAtPrB

PrBPrB

PrB

- PROBE ELECTRODE STATUS

This setting allows you to review the last calibration

information about the electrode conditions

A good pH electrode should have an Offset value no

greater than ±60mV and a Slope value of above 75%

and below 115% Otherwise, the electrode should be

replaced

There are 5 calibration points for review as follow:

Displayed Value

Calibration Point within range

OFF

OFFOFF

OFF

Offset in mV pH7 00

SL1

SL1SL1

SL1

% of slope pH 7 00 to 4 01

SL2

SL2SL2

SL2

% of slope pH 7 00 to 10 01

SL3

SL3SL3

SL3

% of slope pH 4 01 to -2 00

SL4

SL4SL4

SL4

% of slope pH 10 01 to 16 00

1 Press the ENTER key to set; display will show the mV

value with Off

OffOff

Off blinking

2 Press the SELECT key up to review Slope point 1,

display will show the % of slope with sl1

sl1sl1

sl1 below

3 Press the SELECT key up sequentially to review all

the rest of slope value 2, 3, 4 and then back to

Offset in a cyclical mode

When finish, press the EXIT key once followed by

the SELECT key up for next setting

IsO

bvf

SETUP

ENTER

SELECT

EXIT

98.5

sl2

stAt

Prb

SETUP

ENTER

SELECT

EXIT

0.5

Off

SETUP

ENTER

SELECT

EXIT

SETUP

ENTER

SELECT

EXIT

Clr

- CLEAR SAVED MEMORY

This setting will clear all saved memory in the unit

1 Press the ENTER key to set; display will show No

No No

blinking

2. Press the SELECT key up or down to choose

between yes

yesyes

yes and no

nono

3 Choose Yes to clear, press the ENTER key to

confirm

Press the SELECT key up for next setting

Unt

- TEMPERATURE UNIT OF MEASUREMENT

This setting allows you to set the unit of measurement

for temperature between Celcius and Fahrenheit

Factory preset is in Celcius

1. Press the ENTER key to set; display will show C

C C

blinking

2 Press the SELECT key up or down to choose

between C

Cand F

F F

3 Press the ENTER key to confirm

Press the SELECT key up for next setting

Avto off

- AUTO-OFF TIME SETTING

This setting allow you set the time to automatically

shutoff the unit to power save This feature is good if

you want the meter to make prolong measurement or

continuous display

1 Press the ENTER key to set; display will show 1

1 1

blinking

2 Press the SELECT key up or down to scroll between

nono

no,1

1 minutes, 30

3030

30 minutes or 60

6060

60 minutes

3 Select no

nono

no will disable auto-shutoff feature

4 Press the ENTER key to confirm

5 Press the SELECT key up for next setting

CLr

Memory

SETUP

ENTER

SELECT

EXIT

UNt

°C

SETUP

ENTER

SELECT

EXIT

Avto

SETUP

ENTER

SELECT

EXIT

Rtc

- REAL TIME CLOCK

This setting allows you to change the date and time

on the meter

1 Press the ENTER key to begin setting; display will

show clock with hour digit blinking

2 Press the SELECT key up or down to scroll digit

3 Press the ENTER key to confirm or move to set

Minute then Day, Month and Year on each

instance While digit is blinking, repeat step 2~3 to

set digit

4 After setting Year and ENTER , clock is up to date

5 Press the SELECT key up for next setting

RST

- MASTER RESET

This setting allows you to reset the unit to the original factory’s default

Original factory default:

Buffer Standard = I

ISO

SOSO

Auto Shutoff =1s

1s1s

1s minutes

1 Press the ENTER key to set; display will show no

no no

blinking

2 Press the SELECT key up or down to choose

between yes

yesyes

yes and no

no no

3 Press the ENTER key to confirm

4 Press the SELECT key up to repeat from beginning or

EXIT key to return to measuring mode

rtc

2: 04

SETUP

ENTER

SELECT

EXIT

rSt

SETUP

ENTER

SELECT

EXIT

7. CALIBRATION:

7 1 Prepare standard solutions of at least 2 calibration points If

measurements are to be made in the acidic range, select 2 points

between pH-2 to 7 If measurements are made in the alkaline

range, then select between pH7 to 16 If full range is required,

calibrate at least 3 to 5 calibration points between pH-2 to 16

7.2 Buffer standard must be set during SETUP in page 6, BuF

BuFBuF

BuF.

7 3 Standard solutions are in 3 groups of standards – ISO, Nist and

custom standards

ISO buffer standards are pH1 68, 7 00, 4 01, 10 01 and 12 45

NIST buffer standards are pH1 68, 4 01, 6 86, 9 18 and 12 45

Custom standards are defines manually for each buffer standard

7.4 Do keep in mind that buffer all standards are specifies at 25°C. Calibration

value should set to the exact value as the buffer’s solution value correlate to its

current temperature.

Calibration with ISO Standard

7 5 Make sure the unit is properly installed and electrode connected

7 6 This meter can automatically recognize the ISO Standard buffer

solution You will need at least 2 buffer solutions Always begin with

“Offset” calibration first

7 7 Rinse the pH electrodes and temperature probe in distilled-water

then dip it in the buffer solution, first in the offset buffer (pH7 00)

then subsequently each of the slope buffer solution

7 8 Press C L key for 2 seconds and display will show the

7.00

and C L

blinking, indicating it is in calibration mode

* Calibration should be performed as frequently as possible

to ensure accurate measurement, depending on the

frequency of tests performed. Additional calibration

solution should be purchased for future needs.

Always rinses the electrode with distilled water before and after each

test. This is to prevent solution carry over or cross contamination.

Standard solutions must maintain highest purity; otherwise the

meter’s accuracy could be compromised.

7 9 Value will vary according to solution’s temperature listed below:

ISO standard buffer solution Temperature

(°C) Slope

1.68

Offset

7.00

Slope

4.01

Slope

10.01

Slope

12.45

0 1 67 7 11 4 00 10 32 13 43

5 1 67 7 08 4 00 10 25 13 21

10 1 67 7 06 4 00 10 18 13 00

15 1 67 7 03 4 00 10 12 12 81

20 1 68 7 01 4 00 10 06 12 63

25 1.68 7.00 4.01 10.01 12.45

30 1 69 6 98 4 02 9 97 12 29

35 1 69 6 98 4 02 9 93 12 13

40 1 70 6 97 4 03 9 89 11 99

45 1 70 6 97 4 04 9 86 11 84

50 1 71 6 97 4 05 9 83 11 70

55 1 72 6 97 4 06 11 57

60 1 72 6 97 4 08 11 45

65 1 73 6 97 4 10

70 1 74 6 98 4 12

75 1 75 6 99 4 14

80 1 77 7 00 4 16

85 1 78 7 02 4 18

90 1 80 7 03 4 21

95 1 81 7 05 4 24

7 10 If the meter does not recognize the buffer, it means the electrode

could be defective or the buffer solution is wrong Calibration

cannot proceed until they are rectified

7 11 When the meter beeps, Offset point is established

7 12 Now 1 68, 4 01, 10 01 and 12 45 will alternate on main display

7 13 Rinse the pH electrodes and temperature probe in distilled water,

blot or shake dry then dip into next slope buffer solution

7 14 When the meter recognizes the buffer, it displays in blinking mode

7 15 If the value is different from that of the buffer solution then the

electrode could be damage

7 16 When the meter starts beeping, a Slope point is established The

remaining slope values will alternate on the main display

7 17 Repeat step 7 13 to 7 16 sequentially up to 4 slope points

7.18 At least 2 calibration points (offset & slope) must be established in each session

of calibration. Otherwise, the whole calibration will not register.

7 19 When calibration is completed, press ENTER to store all calibrated

points and to return to normal measuring mode

7 20 Anytime during calibration, press EXIT for 2 seconds will abort all

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