Apera Instruments Premium Series User manual

Premium Series PC60 5-in-1 Tester

(pH/Conductivity/TDS/Salinity/Temp.)

User Manual

APERA INSTRUMENTS (Europe) GmbH

aperainst.de

V7.7

Thank you for purchasing Apera Instruments PC60 Premium Multi-parameter Tester. Please

read this manual before use in order to properly use and maintain the product.

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

Contents

1What’s in the Kit ............................................................................................................3

2Keypad Functions .........................................................................................................3

3Preparation Before Use ................................................................................................4

4pH Calibration................................................................................................................4

5pH Measurement ...........................................................................................................5

6Conductivity Calibration...............................................................................................6

7Conductivity Measurement ..........................................................................................6

8Probe Cleaning..............................................................................................................7

9Probe Storage ...............................................................................................................7

10 Parameter Settings ....................................................................................................8

11 Technical Specifications ...........................................................................................9

12 Probe Replacement ...................................................................................................9

13 Battery Replacement ...............................................................................................10

14 Troubleshooting Guide ...........................................................................................11

15 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.

•The latest PC60 Tester comes with an upgraded probe structure equipped with a sensor

shield that prevents glass bulb breakage from accidental collisions (see picture below). Users

can remove the shield when cleaning the sensor and put it back on after cleaning.

1 What’s in the Kit

2 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.

1. In measurement mode, short press to switch

parameter pH →COND →TDS →SAL

2. In parameter settings, short press to make

change

(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;

Battery Cap

Buttons

Probe

Ring

Sensor

Probe Cap

LCD Display

pH Sensor

Platinum black

Conductivity

Sensor

Conductivity calibration vials

pH calibration vials

3 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 calibration. For pH calibration tutorial, refer to Section 4; for conductivity calibration,

refer to Section 6.

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 15 minutes, then calibrate it before test.

4 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 4.1.3 to 4.1.5 (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 4.1.3 to 4.1.5, 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

5 pH Measurement

5.1 How to take pH measurements

Short press to turn on the tester. Rinse the probe in distilled

water, shake off excess water. Insert the probe in your sample

solution, make a quick stir and hold still. Record the reading when it

is stabilized

( appears and stays on 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.de to find the specialized meter designed for pure water pH test.

6 Conductivity Calibration

6.1 Power on the tester. Press to switch to conductivity (Cond) measurement mode. Rinse

the probe in pure water and shake off excess water.

6.2 Pour 1413 μS and 12.88 mS conductivity calibration solution into the corresponding

calibration vials to about half volume.

6.3 Long press to enter calibration mode (screen turns green).

6.4 Dip the probe into 1413 μS/cm conductivity calibration solution, stir gently and hold still. When

the reading is fully stabilized ( stays on screen), short press to start one-point

calibration, the tester returns to measurement mode and will appear at the bottom left of

the screen, indicating a successful 1st point conductivity calibration.

6.5 If needed (your target conductivity level is greater than 2 mS or 2000 μS), dip the probe into

the 12.88 mS conductivity calibration solution. Follow the steps in 6.3 to 6.4 to complete the

2nd point of calibration using the 12.88 mS standard solution. will appear next to ,

indicating a successful 2-point conductivity calibration.

6.6 Conductivity Calibration Notes

The tester can calibrate 84 μS, 1413 μS/cm and 12.88 mS/cm conductivity calibration solution. User

can conduct 1 to 3 points calibration. Refer to the table below. Usually calibrating the tester with 1413

μS/cm conductivity buffer solution alone shall meet the testing requirement.

Calibration Indication Icon

Calibration Standards

Measuring Range

84 μS/cm

0 - 200 μS/cm

1413 μS/cm

200 - 2000 μS/cm

12.88 mS/cm

2 - 20 mS/cm

For conductivity calibration solutions, we recommend that users replace new solutions after 5 times

of use to keep the standard solution’s accuracy. Do NOT pour the used calibration solutions back into

the solution bottles in case of contamination.

7 Conductivity Measurement

7.1 Short press to turn on the tester. Rinse the probe in distilled water and dry it. Dip the probe

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

stabilized ( comes up and stays). Press to switch from conductivity to TDS, and Salinity.

7.2 Unit Conversion

a) 1000 µS/cm = 1 mS/cm = 1 EC (In conductivity mode, the unit will automatically turn

from µS to mS if the reading is greater than 1999 µS, meaning you will only see 2.XX mS

instead of 2XXX µS)

b) 1000 ppm = 1 ppt (In TDS mode, the unit will automatically turn from ppm to ppt if the

reading is greater than 999 ppm, meaning you will only see 1.XX ppt instead of 1XXX

ppm)

c) The TDS and Salinity values are converted from the conductivity values via a certain

conversion factor. TDS and conductivity is linear related, and its conversion factor is 0.40

to 1.00. Adjust the factor in parameter setting P5 based on the requirements in different

industries. The factory default setting is 0.71.

d) Salinity and conductivity is linear related, and its conversion factor is 0.5.

e) The tester only needs to be calibrated in Conductivity mode.

f) Conversion Example: if conductivity measurement is 1000 µS/cm, then the default TDS

measurement will be 710 ppm (under the default 0.71 conversion factor), and the salinity

be 0.5 ppt. If TDS conversion rate is changed to 0.5, then the TDS measurement will be

500 ppm.

7.3 Temperature compensation factor

The default setting of the temp. compensation factor is 2.0%/°C. User can adjust the factor

based on test solution and experimental data in parameter setting P4. The following table is

some common examples for setting up the temp. compensation factor.

Solution

Temperature

compensation factor

Solution

Temperature

compensation factor

NaCl

2.12%/°C

10% Hydrochloric acid

1.32%/°C

5% NaOH

1.72%/°C

5% Sulfuric acid

0.96%/°C

Dilute ammonia

1.88%/°C

8 Probe Cleaning

8.1 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.

8.2 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.

9 Probe Storage

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

the cap with the O-ring.

9.2 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.

9.3 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.

9.4 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.

10 Parameter Settings

10.1 Parameter Settings Tutorial

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

…P8 → Short press to select parameter (starts flickering) → Short press to change

parameter → Short press to confirm the change →Long press to return to

measurement mode.

10.2 Parameter Setting Instruction

a) Select standard pH buffer solution (P1): There are two options of standard buffer solutions:

USA series and NIST series. Refer to following chart:

Icons

pH Standard Buffer Solution Series

USA series

NIST series

Three-point

calibration

1.68 pH and 4.00 pH

1.68 pH and 4.01 pH

7.00 pH

6.86 pH

10.01 pH and 12.45 pH

9.18 pH and 12.45 pH

Symbol

Parameter Setting Contents

Code

Factory Default

Select pH buffer standards

USA –NIST

USA

Select automatic lock

Off –On

Off

Select backlight

Off –1 –On

Temperature compensation factor

0.00 –4.00%

2.00%

TDS factor

0.40 –1.00

0.71

Salinity unit

ppt –mg/L

ppt

Select temperature unit

°C –°F

°F

Back to factory default

No –Yes

b) Automatic lock (P2): 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.

Press to cancel auto. hold.

c) Backlight (P3)

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

d) Factory default setting (P8)

Select “Yes” to recover instrument calibration to theoretical value (pH value in zero potential

is 7.00, slope is 100%), parameter setting return to initial value. This function can be used

when instrument does not work well in calibration or measurement. Calibrate and measure

again after recover the instrument to factory default status.

11 Technical Specifications

Range

-2.00 to 16.00 pH

Resolution

0.01 pH

Accuracy

±0.01 pH ±1 digit

Calibration Points

1 to 3 points

Automatic Temperature Compensation

0 to 50°C (32 to 122°F)

Conductivity

Range

0 to 200.0 μS, 200 to 2000 μS,

2 to 20.00 mS/cm

Resolution

0.1/1 μS, 0.01 mS/cm

Accuracy

±1% F.S

Calibration Points

1 to 3 points

TDS

Range

0.1 ppm to 10.00 ppt

TDS Factor

0.40 to 1.00

Salinity

Range

0 to 10.00 ppt

Temperature

Range

0 to 50°C (32 to 122°F)

Resolution

0.1°C

Accuracy

±0.5°C

12 Probe Replacement

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.

Probes compatible with PC60 Tester:

•AI1211 PC60-E (Regular pH/conductivity probe),

•AI3719-E PC60-DE (Double-junction pH/conductivity probe),

•AI1201 PH60-E (Regular pH glass bulb probe),

•AI3711-E PH60-DE (Double-junction pH glass bulb probe),

•AI1205 PH60S-E (Spear pH probe for solids/semi-solids pH testing),

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

•AI1209 EC60-E (Conductivity probe)

13 Battery Replacement

Please install batteries according to the following steps. *Please note the correct direction of battery

installation:

The Positive Side (“+”) OF EVERY SINGLE Battery MUST FACE UP.

(WRONG INSTALLATION OF BATTERIES WILL CAUSE DAMAGE TO THE TESTER AND

POTENTIAL HAZARDS!)

①Pull the tester’s cap up

②Slide the battery cap along to the direction of arrow

③Open the battery cap

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

⑤Close the battery cap

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

⑦Fit 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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