Apera Instruments PH60 User manual

Premium Series PH60 pH Tester

User Manual

APERA INSTRUMENTS, LLC

aperainst.com

v7.7

Thank you for purchasing Apera Instruments PH60 Premium pH Tester. Please read this manual before use in

order to properly use andmaintainthe product.

For video tutorials, please go to support.aperainst.com

TABLE OF CONTENTS

1WHAT’S IN THE KIT................................................................................................................................................3

2KEYPAD FUNCTIONS..............................................................................................................................................3

3PREPARATION BEFORE USE ...................................................................................................................................4

4PH CALIBRATION ...................................................................................................................................................4

5PH MEASUREMENT ...............................................................................................................................................6

6PROBE CLEANING ..................................................................................................................................................6

7PROBE STORAGE ...................................................................................................................................................6

8PARAMETER SETTING............................................................................................................................................7

9ORP MEASUREMENT .............................................................................................................................................8

10 TECHNICALSPECIFICATIONS ..................................................................................................................................8

11 OTHER SPECIFICATIONS.........................................................................................................................................9

12 PROBE REPLACEMENT ...........................................................................................................................................9

13 NOTES .................................................................................................................................................................10

14 BATTERY INSTALLATION......................................................................................................................................10

15 TROUBLESHOOTING GUIDE .................................................................................................................................11

16 WARRANTY .........................................................................................................................................................12

ATTENTION

•Water droplets are added during production to maintain the moisture of the probe. This is normal

practice and should not be attributed to used product.

•Never use the product when it’s freezing cold. Let it warm to room temperature before using.

•There is a sensor shield on top of the pH sensor, protecting the glass bulb sensor from accidental

damage. You can detach the sensor shield when rinsing and cleaning the sensor as shown in the

graph below. Put back the sensor shield after cleaning.

Detach before cleaning

Sensor Shield

What’s in the Kit

Keypad Functions

Short press: < 2 seconds

Long press: > 2 seconds

1. Short press to turn on the tester and long press to turn off the

tester.

2. When turned off, long press to enter parameter setting.

3. In measurement mode, short press to turn on backlight.

4. In calibration mode, short press to cancel calibration.

1. In measurement mode, short press to switch between pH

and mV.

2. In settings, short press to change parameters

(Unidirectional).

1. Long press to enter calibration mode;

2. In calibration mode, short press to confirm calibration;

3. When reading is locked, short press to unlock.

Calibration Vials

Preparation Before Use

3.1 Pull out the battery insulation slip, and take off the probe cap.

3.2 Rinse off the probe in pure water (preferably distilled or deionized water. RO water or tap water is the

alternative) , then shake off excess water.

3.3 Perform at least a 2-point calibration at pH 7.00 and pH 4.00. For tutorial, refer to Section 5.

3.4 If the tester hasn’t been used for a long time (over 1 month), please soak the probe in the 3M KCL

soaking solution for at least 30 minutes, then calibrate it before test.

pH Calibration

4.1 How to Calibrate

4.1.1 Short press to power on.

4.1.2 Pour pH buffer solutions in the correspondent calibration vials to

about half volume.

4.1.3 Rinse the probe in pure water; Shake off excess water. Dip the

probe in the pH 7.00 buffer solution first, and make a quick stir in

the solution, then hold still.

4.1.4 Long press to enter calibration mode, screen will turn green

(Short press if you decide to quit calibration and return to

measurement mode).

4.1.5 Wait for the reading to stabilize (when stays on the screen), then

short press to start the 1st point calibration. After calibration is

completed, the tester will return to measurement mode.Icon will

appear at the bottom left of the screen, indicating a successful 1-point

calibration (middle point).

4.1.6 To calibrate 2nd point, use 4.00 pH buffer and repeat Step 5.1.3 to 5.1.5 (Do NOT turn off the tester

after you finish pH 7 calibration). will display next to , indicating a successful 2-point

calibration (low and middle points).

4.1.7 If necessary (target pH>8.00), calibrate 3rd point using 10.01 standard pH buffer and repeat Step

5.1.3 to 5.1.5, will show up next to and , indicating a successful 3-point calibration

(high, low, and middle points).

4.2 Notes about Calibration

a) The 1st point calibration must be 7.00 pH. Perform the 2nd and 3rd point calibrations (4.00, 10.01, 1.68,

or 12.45) immediately after the 1st point calibration is finished. Do NOT turn off the meter before you

calibrate 2nd or 3rd point. Otherwise, you will need to restart the calibration process with 7.00 pH first.

b) The pH 4.00 and 7.00 buffer solutions poured into the calibration vials can be used for up to 10 times

as long as they are not contaminated and the bottles are capped when not in use. pH 10.01 can only

be used for up to 5 times as it will lose its accuracy much faster. After that, replace the buffer solutions

in the calibration vials with new ones to keep the accuracy. Keeping the freshness and cleanliness of

calibration buffers is essential for accurate pH measurement.

c) The tester can perform 1 to 3 points of automatic calibration and can recognize 5 types of pH standard

solutions. For details, please refer to the following table:

Calibration

USA Series

NIST Series

Indication icon

Recommended

1-pt

7.00 pH

6.86 pH

Accuracy requirement

≥ 0.1 pH

2-pt

Option A

1st pt: 7.00 pH

2nd pt: 4.00 pH or

1.68 pH

Option A

1st pt: 6.86 pH

2nd pt: 4.01 pH or

1.68 pH

Range < 7.00 pH

Option B

1st pt: 7.00 pH

2nd pt: 10.01 pH or

12.45 pH

Option B

1st pt: 6.86 pH

2nd pt: 9.18 pH or

12.45 pH

Range >7.00 pH

3-pt

1st pt: 7.00 pH

2nd pt: 4.00 or 1.68 pH

3rd pt: 10.01 or 12.45 pH

1st pt: 6.86 pH

2nd pt: 4.01 or 1.68 pH

3rd pt: 9.18 pH or 12.45 pH

Range: 0 to 14.00 pH

pH Measurement

5.1 How to take pH measurements

Short press to power on the tester. Rinse the probe in pure water,

shake off excess water. Dip the probe in your sample solution and make a

quick stir, then hold still. Record the reading after it is stabilized

( appears and stays on the screen).

5.2 Pure Water pH Measurement

When testing pure water like tap water, drinking water, RO water and

distilled water, it will take longer for the readings to get fully stabilized

(typically 1-5 minutes). Please be patient. If still not working, add Apera

3M KCL (AI1107) to your pure water at the ratio of 1:1000 (e.g. 1 ml KCL to 1000 ml water) to accelerate

stabilization while minimizing pH change. If the accuracy is not meeting your requirement, please contact us

at info@aperainst.com to find the specialized meter designed for pure water pH test.

Probe Cleaning

6.1 The tester is only as accurate as the probe is clean. Always thoroughly rinse off the probe before and

after each measurement with pure water in a container or with a wash bottle.

6.2 For tough contaminants, detach the sensor shield, soak the probe in Apera probe cleaning solution

(AI1166) or detergent water for 30 minutes. Then use a soft brush to remove the contaminants.

Afterwards, soak the probe in 3M KCL soaking solution for at least 1 hour. Rinse it off, then re-

calibrate the tester before using again.

Probe Storage

7.1 Under regular usage (daily or weekly use), make sure the probe cap is wet, and tightly close the cap

with the O-ring.

7.2 For long-term storage (you are not going to use the product for a while), add 3M KCL soaking solution

to the Fill line in the probe cap and store the probe in it. Close on the probe cap tightly with the O-

ring.

7.3 If you find white crystals inside or outside the probe cap, it is perfectly normal. It is the 3M KCL

soaking solution that crystalizes over time by its nature. Just rinse them off and add in new soaking

solution. This chemical is not poisonous nor dangerous, and the probe’s performance will not be

affected at all.

7.4 NEVER store the probe in pure water like tap, RO, distilled, or deionized water as they could damage

the pH probe. Pure water is only for rinsing the probe.

Parameter Setting

8.1 Setup Menu

Symbol

Contents

Parameter

Factory Default

Select pH buffer solution

USA –NIST

USA

Low value measurement alarm setting

0 to 14.00pH

High value measurement alarm setting

0 to 14.00pH

14.00

Select automatic lock

Off –On

Off

Select backlight

Off - 1 - On

Select temperature unit

℃- ℉

℉

Restore to factory default

No –Yes

8.2 Parameter Setup

When turned off, long press to enter parameter settings →Short press to switch P1-P2-P3

…P7 →Short press to select parameter (selected parameter starts flickering) →Short press

to change parameter →Short press to confirm the change →Long press to go back to

measurement mode.

8.3 Parameter Setting Instruction

8.3.1 Select standard pH buffer solution (P1):

There are two options of standard buffer solutions: USA series and NIST series. Factory default is USA series,

for details see clause 5.2.

8.3.2 Alarm Function (P2&P3)

Examples:

■Alarm triggered when measurement ≤3.20 pH:

Preset lowest value (P2) = 3.20 pH, highest value (P3) = 14.00 pH, when measured value ≤ 3.20

pH (stable displays on screen); screen turns red.

■Alarm triggered when measurement ≥8.60 pH:

Preset highest value (P3) = 8.60 pH, lowest value (P2) = 0.00 pH, when measured value ≥ 8.60 pH

(stable displays on screen); screen turns red.

■Alarm triggered when measurement ≤3.20 pH or ≥ 8.60 pH

Preset lowest value (P2) = 3.20 pH, highest value (P3) = 8.60 pH, when measured value is lower

than 3.20 pH or higher than 8.60 pH (stable displays on screen), screen turns red.

8.3.3 Automatic Lock (P4)

Select “On” to activate auto lock function. When reading is stable for more than 10 seconds, the tester will

lock the value automatically, and HOLD icon will display on LCD. Short press key again to cancel the lock.

8.3.4 Backlight (P5)

“Off”-turn off backlight, “On”-always turn on backlight, “1”- backlight will last for 1 minute.

8.3.5 Temperature Unit (P6)

Select between C˚ and F˚.

8.3.6 Factory default setting (P7)

Select “Yes” to recover instrument calibration to the theoretical value (pH value in zero potential is 7.00pH,

slope is 100%), parameter setting return to initial value. This function can be used when instrument does not

work properly in calibration or measurement. Calibrate and measure again after recovering the instrument to

factory default status.

ORP Measurement

ORP stands for Oxidation-Reduction Potential. ORP is a measure of the cleanliness of the water & its ability to

break down contaminants. An ORP probe is needed to test ORP (sold separately, SKU: AI1207).After powering

on the tester, press to enter ORP mode (mV). Rinse the probe in distilled water and dry it. Dip the probe

in your sample solution, make a quick stir, and hold still. Record the reading after it is fully stabilized.

TechnicalSpecifications

Measuring Range

-2.00 –16.00 pH

Resolution

0.01pH

Accuracy

±0.01pH ±1 digit

Calibration Points

1 –3 points

Automatic Temperature Compensation (ATC)

0 –50˚C

(32 –122˚F)

ORP (mV)

Measuring Range

± 1000mV

Resolution

1mV

Accuracy

±0.2% F.S

Temp.

Measuring Range

0 –50˚C (32 –122˚F)

Resolution

0.1˚C

Accuracy

±0.5˚C

Other Specifications

Screen

3-color LCD screen,

Blue: Measurement; Green: Calibration; Red: Alarm

Reading Lock

HOLD

Low-Voltage Warning

flashing, reminder of battery replacement needed

Auto. Power-Off

In 8 minutes without operation

Waterproof Rating

IP67

Power

DC3V, AAA alkaline batteries×4

Battery Life

Operation up to 2000 hours

Dimension& weight

Tester: 40×40×178mm/133g; Case: 255×210×50mm/700g;

Probe Replacement

12.1 Every pH probe gradually loses its sensitivity and will eventually fail. A typical service life of a pH probe

is 1-2 years depending on many factors such as frequency of use, nature of test samples, and how well

it is maintained, etc. Apera Instruments recommends replacing the pH probe every 1 to 2 years to

guarantee the optimal performance.

12.2 To replace a probe: 1) Take off the probe cap; 2) Screw off the probe

ring 3) Unplug the probe; 4) Plug in the new replacement probe (pay

attention to the probe’s position); 5) Screw on the probe ring tightly.

Soak the probe in 3M KCL for 5-15 minutes. Then perform calibration

before testing.

12.3 The replacement probes compatible with PH60:

•AI1201 PH60-E (Regular pH glass bulb probe for general water solutions)

•AI3711-E PH60-DE (Double-junction pH glass bulb probe for complex solutions)

•AI1205 PH60S-E (Spear pH probe for soft-solids pH testing)

•AI1203 PH60F-E (Flat pH probe for surface pH testing)

•AI1207 ORP60-E (ORP probe)

Notes

a) Avoid testing in very high (>113°F) or very low (<41°F) temperature solutions as it will cause greater

measurement error and potential damage to the probe. Test your samples and perform calibration

close to room temperature as much as possible.

b) NEVER store the probe in pure water like tap, RO, distilled, or deionized water as they could damage

the pH probe. If this happens, immediately soak the pH probe Apera 3M KCL soaking solution

overnight, then re-calibrate it before using. Pure water is only for rinsing the probe.

c) Never use your finger to touch the glass membrane or use other material to rub it. Doing so could

generate static electricity and cause measurement errors. Never test oily liquids.

d) Make sure the battery cap is completely closed with the red O-ring. Otherwise, the waterproof rating

could be compromised.

Battery Installation

Please install batteries according to the following steps. *Please note direction of batteries: All

POSITIVE SIDES (“+”) FACING UP. (Wrong installation of batteries will cause damage to the

tester and potential hazards)

① Pull the battery cap up

② Slide the battery cap along to the direction of arrow

③ Open the battery cap

④ Insert the batteries (ALL POSITIVE SIDES FACING UP) (see graph)

⑤ Close the battery cap

⑥ Slide and lock the battery cap along to the direction of arrow

⑦ Fit the tester’s cap while making sure to push all the way down. The

tester’s waterproof design may be compromised if the cap is not fitted

correctly.

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