Apera Instruments EC60-Z User manual

- 1 -
SKU:AI3718
EC60-Z Smart Multi-Parameter Tester
(Conductivity/TDS/Salinity/Resistivity/Temp.)
Instruction Manual
APERA INSTRUMENTS, LLC
www.aperainst.com
V1.03

- 2 -
Contents
Introduction - 3 -
Battery Installation - 4 -
Keypad Functions - 4 -
Complete Kit - 5 -
Things to Know Before Use - 5 -
Conductivity Calibration - 5 -
Conductivity Measurement - 7 -
Parameter Setting - 8 -
Technical Specifications - 9 -
Icons and Functions - 10 -
Probe Replacement - 10 -
Warranty - 11 -
ATTENTION
1. You may find a few drops of water in the probe cap. These water droplets are
added to maintain the sensitivity of the conductivity sensor before the product
leaves factory. It does NOT mean the product is used.
2. The batteries are already preinstalled. Just pull off the paper slip before using
the tester. When you replace the batteries, make sure to follow the correct
directions: all four AAA batteries’ positive sides must FACE UP.

- 3 -
Introdu ction
Dear Customer,
Thank you for choosing Apera Instruments EC60-Z Smart Conductivity Tester. Please carefully read this
manual before using the product in order to have a reliable testing experience.
1.1 This product is designed with a two-way control on both the tester and ZenTest Mobile App. Please refer
to the functions available on each platform in the following table. This manual shows you how to operate the
tester without connecting to a smartphone.
Table 1: Funtions on 60-Z Tester and ZenTest® Mobile App
Functions
60-Z Tester
ZenTest Mobile App
Display
LED display
1. Basic Mode: digital display+calibration info
Swipe to
switch among
various modes
2. Dial Mode: digital display+dial display
3. Graph Mode: digital display+graph display
4. Table Mode: digital display+real time
measurement and history display
Calibration
Press buttons to
operate
Operate on smartphone following graphic guides
Self-
Diagnosis
Er1 – Er6 icons
Detailed problem analysis and solutions
Parameter
Setup
Press buttons to set
up (except for P7
and P11)
All parameters can be set up in Settings.
Alarm
The screen turns
red when alarm
triggered; cannot
be setup
Alarm display and alarm values can be preset for each parameter
Datalogger
N/A
Manual or Auto. Datalogger; notes can be added to saved data
Data Output
N/A
Share data via Email
1.2 Search ZenTest in Apple App Store or Google Play App Store to download the latest App for your tester.
1.3 For video tutorials on how to connect the tester to your smartphone and perform more functions in ZenTest
Mobile App, please go to support.aperainst.com

- 4 -
Batte ry Inst allatio n
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)
Keyp ad Funct ions
■ Short press------ < 2 seconds ,Long press------- > 2 seconds
1. When turned off, short press to turn on the tester; long press to
enter parameter setting.
2. In calibration mode or parameter setting, short press to return
to measurement mode.
3. In measurement mode, long press to turn off the tester, short
press to turn on/off backlight.
1.In measurement mode, short press to switch parameter
Cond→TDS→Sal→Res
2.In measurement mode, long press to turn on/off Bluetooth®
receiver. When turned on, will be flashing; when connected to
smartphone, will stay on.
3.In parameter setting, short press to change parameter (Uni-
directional).
1. Long press to enter calibration mode.
2. In calibration mode, short press to confirm calibration.
3. In measurement mode, when automatic lock is turned off, short
press to manually lock or unlock readings.
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.
Battery Cap
Buttons
Probe
Probe Cap
LCD
+
+
+
+
-
-
-
-

- 5 -
Compl ete Kit
Things to Know B ef ore U se
1) A few drops of water are added to the probe cap to keep the conductivity electrode in an activated state
before the tester leaves factory. Generally, users can start using the tester directly. For conductivity
electrode that hasn’t been used for a long time, users should soak the electrode in 12.88 mS calibration
solution for 5-10 minutes or in tap water for 1 to 2 hours before use. Rinse the electrode in
distlled/deionized water after each measurement.
2) The sensing rod of Model 2301T-S conductivity electrode is coated with platinum black to minimize
electrode polarization and expand measuring range. The platinum black coating adopted our special
processing technology, which improves the electrode performance and the firmness of the coating. If the
black sensing rods are stained, gently clean the electrode with a soft brush in warm water containing
detergent or alcohol.
3) Things needed in addition to what’s in the box:
a) Distilled or deionized water (8-16oz) for rinsing the probe after each test
b) Tissue paper for drying the probe
Condu ctivit y Calib ration
How to calibrate
1) Press key to switch to conductivity measurement mode (Cond). Rinse the probe in distilled water
and dry it.
2) Pour certain amount of 1413μS/cm and 12.88mS/cm conductivity calibration solution into corresponding
calibration bottles (to about half volume of the bottle).
3) Long press key to enter calibration mode, short press to go back to measurement mode.
4) Place the probe into 1413 μS/cm conductivity calibration solution, shake it for a few seconds and allow it
to stand still in the solution until a stable reading is reached. When stays on the LCD screen, short
press key to complete 1st calibration, the tester returns to measurement mode and indication icon
will appear at the bottom left of the LCD screen.
Graph-2

- 6 -
5) After calibration, place the probe in 12.88 mS/cm conductivity calibration solution. If the value is
accurate, it is not necessary to conduct 2nd point calibration. If it is inaccurate, follow the steps in 3) to 4)
to complete the 2nd point of calibration using 12.88 mS/cm calibration solution.
Notes
1) TDS, salinity, and resistivity values are converted from conductivity. So only conductivity needs
to be calibrated.
2) The tester can calibrate 1413 μS/cm, 12.88 mS/cm, and 84 μS/cm(sold separately)
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 - 199 μS/cm
1413 μS/cm
200 - 1999 μS/cm
12.88 mS/cm
2.0 – 20.00 mS/cm
3) The tester has been calibrated before leaving factory. Generally, users can use the tester
directly or users can test conductivity calibration solutions first. If the error is large, then
calibration is needed.
4) Conductivity calibration solutions are easier to get polluted than pH buffers, we recommend
that users replace new conductivity solutions after 5 to 10 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.
5) Temperature compensation factor: The default setting of the temperature compensation factor
is 2.0%/℃. User can adjust the factor based on test solution and experimental data in
parameter setting P10.
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
6) *1000μS/cm =1mS/cm; 1000 ppm = 1 ppt
7) TDS and conductivity is linear related, and its conversion factor is 0.40-1.00. Adjust the factor
in parameter setting P13 based on the requirements in different industries. The factory default
setting is 0.71. Salinity and conductivity is linear related, and its conversion factor is 0.5. The
tester only needs to be calibrated in Conductivity mode, then after calibration of conductivity,
the meter can switch from conductivity to TDS or salinity.
8) Conversion Example
if conductivity measurement is 1000µS/cm, then the default TDS measurement will be 710
ppm (under the default 0.71 conversion factor), and the salinity be 0.5 ppt.
9) For the self-diagnosis information, please refer to the table below:

- 7 -
Symbol
Self-Diagnosis information
How to fix
The meter cannot recognize the
conductivity standard solutions.
1. Make sure the probe is fully submerged in
the solution.
2. Check if the standard solution is expired or
contaminated.
3. Check if the conductivity electrode (two
black rods) is damaged.
4. Check if the conductivity electrode is
contaminated. If so, please use a soft brush
with warm water to clean up.
5. If none of the above, please contact us at
[e-mail] or [phone]
Is pressed before measurement is
fully stable ( comes up and stays)
Wait for to come up and stays on screen before
pressing
Duringcalibration,readings beingunstable
for over 3 minutes
1. Shake the probe to remove the air bubbles
on the surface of the black rods
2. Check if the conductivity electrode is
contaminated. If so, please use a soft brush
with warm water to clean up.
3. Soak the probe in 12.88mS/cm solution for
10 minutes, then rinse with distilled water.
4. If none of the above, please contact us at
[email protected] or [phone]
The calibration reminder is triggered. It’s
time to perform a new conductivity
calibration
Perform conductivity calibration or cancel calibration
reminder in ZenTest settings.
Condu ctivit y Measu rement
Press key to turn on the tester. Press to switch to Conductivity measuring mode. Rinse the probe
in distilled water and remove excess water. Insert the probe in sample solution, shake it for a few seconds,
and allow it to stand still in the solution until a stable reading is reached. Get readings after comes up
and stays. Press to switch from conductivity to TDS, salinity, and resistivity.

- 8 -
Param eter S etting
Table of Settings
Parameter Setting
1) When the meter is turned off, long press to enter parameter setting →short press to switch
P01-P02… →P14. Short Press , parameter flashes → short press to adjust parameter →
short press to confirm →Short press to exit parameter setting and go back to measurement
mode.
2) Auto. Lock (P02) –Users can set the auto lock time from 5 to 20 seconds. For example, if 10 seconds
is set, when the measured value is stable for more than 10 seconds, the measured value will be
automatically locked, and the HOLD icon will be displayed. Short press to release the lock. When
the setting is "Off" , the Auto. lock function is turned off, that is, the measured value can only be
manually locked. Short press to lock or unlock the measured value. The HOLD icon will be
displayed when reading is locked.
3) Auto. Backlight (P03) ─Users can set the automatic backlight time for 1 to 8 minutes. For example, if
3 minutes is set, the backlight will turn off automatically after 3 minutes; when the “Off”is set, the auto.
backlight function will be turned off, and short press to manually turn the backlight on or off.
4) Auto. Power off (P04) ─The auto. power off time can be set to 10 to 20 minutes. For example, if 15
minutes is set, the meter will automatically shut down after 15 minutes if no operation; when “Off” is set,
the auto. power off function will be turned off. Long press to manually shut down the meter.
Symbol
Parameter Setting Contents
Content
Factory
Default
P1
Temperature Unit
˚C – ˚F
˚F
P2
Select automatic lock
5-20 seconds –Off
Off
P3
Automatic Backlight Off
1-8 minutes –Off
1
P4
Automatic Power Off
10-20 minutes –Off
10
P5
Conductivity Reference
Temperature
15 ˚C to 30 ˚C
25 ˚C
P6
Temp. Compensation Coefficient
0 to 9.99
2.00
P7
Conductivity Calibration Reminder
H-hours D-Days (set up in ZenTest App)
/
P8
Conductivity Back to Factory
Default
No –Yes
No
P9
TDS Factor
0.40 to 1.00
0.71
P10
Salinity Unit
ppt –g/L
ppt

- 9 -
5) Conductivity Calibration Reminder (P7) –set X hours (H) Or X days (D) in ZenTest mobile app –
settings –Parameter –pH –Calibration Reminder. On the meter, you can only check the values that’s
been set up on ZenTest App. For example, if 3 days is set up, the Er6 icon (see Figure-4) will appear in
the lower right corner of the LCD screen in 3 days to remind you to perform calibration, also in the
ZenTest App there will be a pop-up reminder. After calibration is finished or the reminder setting is
cancelled in the ZenTest App, the Er6 icon will disappear.
6) Conductivity Back to Factory Default (P8) –Select “Yes” to recover instrument calibration to
theoretical value. This function can be used when instrument does not work well in calibration or
measurement. Calibrate and measure again after setting the instrument back to factory default.
Techni cal Sp ecific ations
Conductivity
Range
0 to 199.9 μS, 200 to 1999 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
Resistivity
Range
50Ω to 20MΩ
Temperature
Range
0 to 50˚C (32-122˚F)
Accuracy
±0.5˚C

- 10 -
Icons and F unctio n s
Prob e Repla cement
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. The replacement probe that
is compatible with EC60-Z is: EC60-DE
Calibrated points
Self-Diagnosis Symbol
Er1, Er2, Er3, Er4,Er5, Er6
Stable reading indicator
Waterproof Rating
IP67, floats on water
Reading Lock
HOLD
Power
DC3V, AAA batteries*4
Bluetooth Signal
Battery Life
＞200 Hours
Low power reminder
Backlight
White: Measurement；Green: Calibration；
Red: Alarm
Auto. Power Off
Automatically power off if no operation for 10 minutes
Dimension/Weight
Instrument：40×40×178mm/133g; case：255×210×50mm/550g;

- 11 -
Warr anty
We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of
charge, at option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to responsibility of
APERA INSTRUMENTS, LLC for a period of TWO YEARS (SIX MONTHS for the probe) from the delivery. This limited
warranty does NOT cover any damages due to: accidental damage, unauthorized repair, normal wear and tear, or external
causes such as accidents, abuse, or other actions or events beyond our reasonable control.
To claim for warranty or seek additional help, please go to support.aperainst.com and click New support ticket.
Please provide the following information in the ticket:
Your Name
Phone Number
Email
Shipping Address
Product Name
Serial Number
(on the back of the meter)
Photo or screenshot of receipt
Problems experienced
⚫After the ticket is submitted, one of our customer care specialists will be assisting you within 1 business day.

- 12 -
APERA INSTRUMENTS, LLC
Address: 6656 Busch Blvd, Columbus Ohio 43229；Tel: [phone]
Email: [email protected] Website: www.aperainst.com