Yoke P611 User manual

Shanghai Yoke Instrument Co.,Ltd.

Model P611 pH Meter

Operation Manual

Table of Contents

1. Brief Introduction -----------------------------------------------------------------------------------

2. Technical Parameters -------------------------------------------------------------------------------

3. Instructions to the Meter ---------------------------------------------------------------------------

3.1. LCD Display -------------------------------------------------------------------------------------

3.2. Operation Keys ----------------------------------------------------------------------------------

3.3. The Storage, Recall and Elimination of the Measuring Information ---------------------

4. pH Measurement ------------------------------------------------------------------------------------

4.1. Preparation Work --------------------------------------------------------------------------------

4.2. Meter Calibration --------------------------------------------------------------------------------

4.3. Sample Test --------------------------------------------------------------------------------------

4.4. Parameter Setting --------------------------------------------------------------------------------

4.5. Considerations -----------------------------------------------------------------------------------

4.6. The Self-diagnose Information ----------------------------------------------------------------

5. mV Measurement -----------------------------------------------------------------------------------

6. Meter’s Complete Kit -------------------------------------------------------------------------------

7. Warranty ----------------------------------------------------------------------------------------------

1. Brief Introduction:

Thanks for buying and using the model P611 pH/mV Meter (the following called “meter”in

short).

Before using this meter, please read the operation manual carefully in order to help use and

maintain it correctly. On the basis of improving instrument of performance constantly, we

reserve the right of changing the content of this manual and accessories in case of not

notifying in advance.

This meter is a perfect combination with the most advanced electronic technology, sensor

technology and software design The meter can measure the parameters of pH, mV and

temperature for high accuracy solution. It is the best portable pH meter with the highest

performance and the lowest cost. It is suitable for the trade such as the mining industry,

power plant, water treatment projects and environmental protection, etc., especially has

more extensive application in the field and spot test.

Built-in microprocessor chip, beautiful appearance, multi-functional and easy to use, this

meter has the following prominent features:

1.1. Built-in microprocessor chip, with the intelligent functions of automatic calibration,

automatic/manual operation temperature compensation, data storage, function setting

and automatic self-diagnose, auto power off and low voltage display etc. Equips with

calibration solution and special carrying case, easy to use.

1.2. Adopts digital filter and step slipping technology to intelligently improve meter’s

response speed and result accuracy. “ ” will appear when reading to be stable.

1.3. A new type of pH meter electrode and temperature electrode,the pH measurement

mode has the function of automatic temperature compensation ,it is more convenient

to use, more accurate to measure.

1.4. Automatically recognize 15 kinds of pH standard buffer solution. User can choose

anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series, and

China series,can be a point, two and three points to calibrate the way to facilitate

customer selection.

1.5. Meter’s circuit board adopts SMT film-covering technology to improve meter’s

production reliability.

1.6. Meter has the back light LCD display monitor.

1.7. IP54 dust and water resistant.

2. Technical Parameters:

2.1. pH:

Measuring range

(-2.00 - 19.99) pH

(Depending on type of electrode used)

Resolution

0.1/0.01 pH

Accuracy

Meter:±0.01pH; Complete Kit: ±0.02pH

Input current

≤2×10-12 A

Input impendance

≥1×1012 Ω

Stability

±0.01 pH/3h

Temp. Compensation range

(0 - 100) ℃(auto/manual)

2.2. mV:

Measuring range (mV/ORP/EH)

-1999 mV - 0 - 1999mV

Resolution

1mV

Accuracy

Meter:±0.1% FS

2.3. Other Technical Parameters:

Data storage

150 groups

Storage content

Series number, measuring value, measuring

unit and temperature

Power

Two AA batteries (1.5V x2)

Size and weight

Meter: (165×90×32)mm/310g

Quality and safety certification

ISO9001:2000, CE and CMC

2.4. Working Condition:

Environment temperature

5 - 35 ℃(0.01 grade)

Environmental humidity

≤85%

IP rating

IP54 dust and water resistant.

3. Instructions to the Meter:

3.1. LCD Display:

① —— Parameters mode icon

② —— Measuring value

③ —— Serial number and icon as measuring value to be stored and recalled.

M+ —measuring value to be stored icon;

RM —reading to be recalled icon;

④ —— Measuring unit

⑤ —— Temperature measuring value and unit

⑥ —— Measuring value to be stable icon

⑦ —— Electrode calibration indicate icon

⑧ — — Indication icon of low voltage, appears when the voltage less than 2.4V, call

attention to change the batteries.

3.2. Operation Keys:

The meter has 7 operation keys in all.

3.2.1. —Switch key

In the measurement mode open and shutdown function , other mode keys do not work.

3.2.2. —Calibration key

(a) When in the measurement state, press this key to enter into calibration mode.

(b)When in the non - measurement state, the key is returned as the exit key.

3.2.3. —Function key

When in the measuring state，Short-time press (time≤1.5s) ，cyclic changing unit:

→

3.2.4. —Back light and Data deleting key

(a) When in the measuring state, short press (less than 1.5s) to open or close the back

light display;

(b) When in the storage record query state,long press (more than 5s) delete save data.

3.2.5. —increase and query key, —reduce and save key

(a)When in the measuring state, short press (≤1.5s), save measure data,

Short press (≤1.5s),resume shows the save data

(b) When in the parameter setting state, and change parameter size

3.2.6. —The entrance key and return key

(a) When in the measuring state, long press (≥2s)this key to set parameter.

(b) When in the non-measuring state,short press (≤1.5s), determine current selection.

3.3. The Storage, Recall and Elimination of the Measuring Information:

3.3.1. Store the measuring information:

In the measuring mode, when the measuring data is stable and appear the “ ”,

short-time press key(less than 1.5s),LCD will display “M+ ”icon and storage

serial number, and meanwhile memory all the measuring information. Meter can storage

100 groups data(Two different units altogether storage 150 groups data)

3.3.2. Recall measuring information:

(a) Under the measuring mode, short press the key (≤1.5s),meter will recall the

last stored information, and the storage number and “RM”icon and the complete

measuring information will appear in the lower right corner of the LCD. Again press

and key, meter will in turn recall all the measuring information

(b) In the recalling state，press key will return the measurement mode

3.3.3. Eliminate the stored measuring information:

In the recalling mode, depress the key for 5 seconds, LCD will appear “ ”

for 2 seconds. It means the storage has been eliminated, and returns to measuring mode.

4. pH Measurement:

4.1. Preparation Work:

4.1.1. Press key to turn on，press key, select PH measurement mode

4.1.2. Check E-201pH composite electrode,check pH composite electrode glass bulb

whether or not keep wet,if the glass bulb damaged,the electrode cannot be used,if glass

bulb’s surface too dry need to be immerged into a saturated potassium chloride

solution for 24 hours to activate and reuse.

4.1.3 Insert the PH composite electrode and the temperature electrode into the

corresponding interface.

4.2. Meter Calibration:

4.2.1. Press to enter into calibration mode, LCD displays the twinkling “ ”

indicate to enter into the first point calibration.

4.2.2. Wash the pH electrode in purified water and dry it, then immerge it into the pH 7.00

buffer solution, rock the electrode holder and then still, waiting for the data stable and

appear “ ”, then again press key , the LCD will appear a twinkling 7.00

pH, confirm the calibration is right then press key to confirm the first point,

the “ ” will appear in the upper right corner,prompt into the second point

calibration or press key exit calibration mode.

4.2.3. Wash the pH electrode in purified water and dry it, then immerge it into the pH4.00

buffer solution, rock the electrode holder and then still, waiting for a stable data and

appear “ ”, then again press key , the LCD will appear a twinkling

4.00pH, confirm the calibration is right then press key to confirm the second

point ,the “ ” will appear in the upper right corner,prompt into the third point

calibration or press key exit calibration mode.

4.2.4. Wash the pH electrode in purified water and dry it, then immerge it into the pH 10.01

buffer solution, rock the electrode holder and still, waiting “ ” for the data stable and appear,

then again press key , LCD will appear a twinkling 10.01 pH, confirm the calibration

is right then press key to confirm the third point, at this time exit calibration mode into

measuring mode ,the LCD will appear “ ” in the lower left corner,it means

meter was third times calibrated.

4.2.5. Note:

(a) This meter can adopt random one-point, two-point or three-point automatic calibration,

after the first point calibration (see item 4.2.2.), press to exit calibration

mode and enters into measuring mode. The indication icon “ ” for

one-point calibration will appear on the lower left corner of LCD. When the

measuring accuracy is ≤±0.1pH, user just need to choose one kind buffer solution

to take one-point calibration according to the measuring range.

(b) After the second point calibration, (see item 4.2.3.), press to exit calibration

mode and enter into measuring mode. The indication icon “ ” for

tow-point calibration will appear on the lower left corner of LCD. User can choose

pH4.00 and pH 7.00 to calibrate if the measurement is just within the acidity range and

choose pH7.00 and pH 10.01 to calibrate if just within the alkalinity range.

measurement if the measuring range is wide, or if the electrode has been used for long

or has ageing phenomenon. As to the new electrode which be used for the first time, it

must be calibrated by three-point calibration to keep the unanimity of the meter slope

adjustment with the pH electrode.

4.3. Sample Test:

Immerge pH electrode into the sample solution after washing and dry it, rock the

electrode holder and still, when the LCD appears the icon “ ” to take the reading

after displaying value to be stable.

Note: According to the pH equal temperature measuring theory: the closer the

temperature of the sample solution with the calibration solution, the more accurate

the measuring value will be acquired. So please comply with this theory.

4.4. Parameter Setting:

4.4.1. pH parameter schedule (Chart (4-1))

Chart (4-1)

Prompt

Mark

Parameter Setting Items

Parameters

Manual temperature

compensation setting

(0-99.9)℃

Resolution selection

0.1pH/0.01pH

pH standard buffer solution

selection

CH、USA、NIST

Temperature unit setting

℃ ℉

Purified water,Ammonia

added purified water pH

restitution

OFF-ON

Backlight timing shutdown

time setting

(0-20)m/0 means closes this

function

Auto power off setting

(0-20)m/0 means closes this

function

Restore to producer setting

OFF-ON

4.4.2. Manual temperature compensation settings(P1)

(a) Depress key enter into setting mode,press enters into P1 mode: see

picture (4-2).

(b) Press or key to change the temperature value;

Long press the two settings keys can be changed quickly;

Table of contents

Other Yoke Measuring Instrument manuals

Yoke

Yoke P613 PH User manual

Yoke

Yoke PT-2000S User manual

Popular Measuring Instrument manuals by other brands

Suaoki

Suaoki D40 user manual

Elster

Elster BK-G1.6 operating instructions

Endress+Hauser

Endress+Hauser Deltabar FMD71 technical information

Duratool

Duratool D03128 manual

Vega

Vega VEGAPULS 65 Quick setup guide

Tonghui

Tonghui TH2618B Operation manual

Tenmars

Tenmars TM-801 user manual

MSR

MSR 145 user manual

TPS

TPS WP-82 manual

ELMETRON

ELMETRON CP-511 user manual

PCB Piezotronics

PCB Piezotronics 003C30 Installation and operating manual

Tenma

Tenma 72-10465 manual

Endress+Hauser

Endress+Hauser Proline Promag 50 Brief operating instructions

Siemens

Siemens SITRANS F Coriolis FCT030 Function manual

KLINGER

KLINGER CMF V Series instruction manual

EXFO

EXFO FTB-2 Notice

Keysight

Keysight M8290A Getting started guide

ADTEK

ADTEK MW-5 operating manual