Pyxis Porta-Check EZ-100 User manual

User Manual
EZ-100
Porta-Check™
pH Meter

EZ-100 Porta-Check Manual
I
Contents
1 Introduction ........................................................................................- 1 -
1.1 Introduction ..........................................................................- 1 -
1.2 Technical Specification ..........................................................- 2 -
1.3 Function Introduction ............................................................- 3 -
2 Safety Notices.....................................................................................- 4 -
3 Terms Explanation ..............................................................................- 5 -
4 Overview and Installation ....................................................................- 6 -
4.1 Overview ..............................................................................- 6 -
4.2 Instrument installation ...........................................................- 7 -
4.2.1 Wristband Installation......................................................- 7 -
4.2.2 Electrode Connection ......................................................- 8 -
5 Instrument Operation.........................................................................- 10 -
5.1 Screen Icons........................................................................- 10 -
5.2 Key Functions .....................................................................- 13 -
5.3 Instrument Settings..............................................................- 15 -
5.3.1 Switch On/Off ..............................................................- 15 -
5.3.2 Function settings...........................................................- 16 -
5.4 Calibration..........................................................................- 21 -
5.4.1 Prepare electrodes .........................................................- 21 -
5.4.2 pH electrode Calibration................................................- 21 -
5. Measurement ........................................................................- 25 -
5.5.1 Measurement preparation...............................................- 25 -
5.5.2 Measurement ................................................................- 25 -
6 Maintenance and Troubleshooting ......................................................- 28 -
6.1 Maintenance .......................................................................- 28 -

II
6.2 Electrode usage and maintenance..........................................- 30 -
6.3 Troubleshooting ..................................................................- 31 -
7 Technical Support .............................................................................- 32 -
Accessories ..............................................................................- 32 -
8 Appendix..........................................................................................- 34 -
Appendix 1...............................................................................- 34 -
EZ-100 Porta-Check Manual

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1 Introduction
1.1 Introduction
The EZ-100 Porta-Check is a portable pH meter is not only suitable for
sampling, measuring the pH value of aqueous solution and measuring
electrode potential (mV) value in laboratories of industrial and mining,
research institutes, but also especially suitable for pH measurement in field
and mobile environment
General Features
High resolution LCD display screen, 6.0 inches.
Powered by lithium batteries, no need to replace batteries frequently,
suitable for long-term use.
Multi-reading feature allows auto-read and continuous-read.
The instrument displays electrode slope and data stability mark.
Support electrode calibration function, up to 2-point calibration.
Automatic calibration function, automatic identification of three pH
standard buffer solutions: 4.01pH, 7.00pH and 10.01pH.
Support manual calibration function, custom standard solution.
Automatic/Manual temperature compensation ensures accurate
results.
Support 200 sets measurement results storage.
IP65 waterproof. The meter is fit to fields measurements and outdoor
measurements.
EZ-100 Porta-Check Manual

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1.2 Technical Specification
Table 1-2 Instrument Specifications
Model
EZ-100
pH level
0.01 pH
mV
Range
(-1999～1999)mV
Minimum resolution
1mV
Electronic unit indication error
±0.1%(FS)
Electronic unit repeatability
1mV
Electronic unit input current
≤1×10-12Ａ
Electronic unit input impedance
≥1×1012Ω
pH
Range
(-2.00～18.00)pH
Minimum resolution
0.01pH
Electronic unit indication error
±0.01pH
Electronic unit repeatability
0.005pH
Instrument indication error
±0.02pH
Instrument repeatability
0.01pH
Temperature
Range
(-5.0～110.0)°C
Minimum resolution
0.1°C
Electronic unit indication error
±0.2°C
Instrument indication error
±0.4°C(0.0° C ～60.0°C), ±1.0°C(Other range)
Use environment
Ambient temperature: (0～40) °C
Relative humidity: not more than 85%
Dimensions(L×B×H), Weight(kg)
80mm ×225mm×35mm, About 0.4kg
Power supply
Rechargeable lithium battery, power adapter
(Input AC 100~240V, Output DC 5V)
EZ-100 Porta-Check Manual

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1.3 Function Introduction
Table 1-2 Main functions
Function
Explanation
Basic function
Backlight Power
●
Reset settings
●
Power failure protection
●
Anti-interference automatic recovery
●
Automatic shutdown
●
Protection
IP65
Reading
function
Default balance settings
●
Auto-lock reading
●
Reading Mode
auto-read and
continuous-read
Data
management
Storage
200 sets
View
●
Delete
●
pH/mV
measurement
PH electrode status/performance display
Electrode slope
Multi-point calibration
2
Automatic identification of standard
solutions
1 group standard
solution
Custom standard solution
Manual identification
of standard solutions
Automatic temperature compensation
●
Manual temperature compensation
(0.0～60.0)°C
Temperature
function
Temperature unit
° C
●Equipped
EZ-100 Porta-Check Manual

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2 Safety Notices
Please read the entire contents of this manual carefully before use, and
please keep this manual properly. The user MUST use the instrument
following this manual to avoid damage to the user and equipment.
Before using the meter, READ the following notes:
DO NOT DISASSEMBLE the device for inspection or repair.
To prevent electric shock or damage to the device, DO NOT place
cables and connectors in any liquid, wet or corrosive environment.
Please use the defaulted power adapter
DO NOT use it if the power cord is damaged (the wire is exposed or
broken).
DO NOT use in flammable and explosive environments.
DO NOT use if the user finds any abnormalities such as damage or
deformation of the device.
The following identifiers will be used in this manual.
【TIPS】
Tips help to use the meter.
EZ-100 Porta-Check Manual

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3 Terms Explanation
pH Slope: The amount of potential change generated by each 1 pH
change, expressed in mV/pH or by 100% Theoretical Slope (PTS).
pH = - log[H], where [H] means molar concentration (mol/L) of H
ions.
E0 of pH: Also known as "zero potential", usually refers to the
potential value at pH 7;
One-point calibration: Calibration with a standard solution.
Two-point calibration: Calibration with two standard solutions.
Multi-point calibration: Calibration with more than two standard
solutions.
EZ-100 Porta-Check Manual

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4 Overview and Installation
4.1 Overview
Figure 4-1 Overview-Front View
Figure 4-2 Overview- Back View
1 Meter Body
2 Power Key
3 Function selection key
4 Display
5 Socket protective cap
6 Power sockets
7 Wristbands
8 Flip Tilting Stand
9 Electrode Holder
10 Electrode
EZ-100 Porta-Check Manual

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Figure 4-3 Electrodes and connectors
4.2 Instrument installation
4.2.1 Wristband Installation
1) Push the wrist strap switch at the wrist strap head to open the closed
round hole,
2) Snap the opened round hole card slot into the shaft of the
corresponding instrument housing and close the round hole.
3) The lower wristband card slot is also operated as above.
11 Temperature electrode connectors
12 pH electrode connectors
13 Electrode protection cap
14 pH electrodes
EZ-100 Porta-Check Manual