The PCE-PH 228 advanced pH meter stands for precision, user-friendliness and GLP compliance (Good Laboratory Practice). With a high-resolution LCD display, the pH meter provides a clear and concise presentation of measurement values. GLP compliance is ensured through automatic data recording and traceable documentation. It allows measurement of pH or redox value and temperature with external sensors. 

A Permanent Measurement Verification (PMV) indicates to the operator, using a colour bar, where the measurement value is located within the calibration range, providing insight into whether the measurement is in the correct range.

The graphically-guided calibration makes the process simple and user-friendly. User and sample management enable easy navigation and adjustment of measurement parameters on the pH meter. Sample information can be stored to facilitate the management and identification of measurements. A generous internal data storage saves extensive records without the need for external storage. The USB-C port on the pH meter ensures fast data transfer and charging. A powerful LiPo battery allows hours of measurements before needing to be recharged. 

Overall, this pH meter represents a significant step in the development of handheld and laboratory instruments. The high accuracy of ± 0.002 pH + 2 Digits, graphically-guided calibration, GLP compliance, user and sample management, and data storage make it an indispensable tool for scientists, researchers, and laboratory technicians relying on precise pH measurements. It not only enhances the accuracy and efficiency of experiments but also streamlines daily work in industry, quality assurance, and the laboratory.

Highlights

  • Fast, precise pH and temperature measurement

  • Redox measurement (with optional electrode)

  • GLP data management

  • Easy 2, 3, 4, and 5-point calibration

  • Calibration reminder

  • Permanent Measurement Verification (PMV)

  • Graphical display of measurement history

  • Data logger

Specifications

pH

 

Measurement Range

-2 pH ... +20 pH

Resolution

0.001 pH

Accuracy

± 0.002 pH + 2 digits

 

 

Electrode

 

Designation

PE-03

Measurement Range

+1 pH ... +13 pH

Temperature Range

5 ... 60 °C

Application

Aqueous non-corrosive media

Reference Electrolyte

Ag/AgCl

Shaft Material

Epoxy resin

Shaft Length

160 mm

Shaft Diameter

12 mm

Cable Length

1 m

 

 

Redox

 

Measurement Range

-2000 mV ... +2000 mV

Resolution

1 mV

Accuracy

± 2 mV

 

 

Temperature Sensor

 

Minimum Temperature

-20 °C

Maximum Temperature

100 °C

Resolution

0.1 °C

Accuracy

± 0.5 °C (@ 20 °C)

 

 

General Technical Data

 

Storage Medium

Internal memory

Storage Interval from

1 s

Storage Interval to

12 h

Storage Capacity

32 GB

Storage Capacity Additional Information

100 records with a maximum of 100,000 data points per record

Interface

USB-C

Menu Language

German, English, French, Spanish, Italian, Dutch, Portuguese, Turkish, Polish, Russian, Chinese, Danish, Japanese

Protection Class (Device)

IP52

Power Supply

5 V DC, 500 mA

Weight

252 g

Dimensions (L x W x H)

178 x 85 x 32 mm / 7 x 3,3 x 1,2 in

Operating Conditions

-20 ... 65 °C , 10 ... 95 % r.H

Storage Conditions

-20 ... 65 °C , 10 ... 95 % r.H

Languages of the Manual

German, English

 

 

Batteries and Accumulators

 

Type

Lithium polymer battery

Lithium Info

Lithium in the product (built-in or included)

Capacity

2500 mAh

Voltage

3.7 V

System

Secondary: Rechargeable battery

Quantity

1

Delivery scope

  • 1 x pH meter PCE-PH 228

  • 1 x pH electrode PE-03

  • 1 x temperature sensor

  • 1 x service pouch

  • 1 x USB-C cable

  • 1 x quick start guide