Portable pH/ORP meter LPRPM-T2011

Introduction

Portable pH/ meter with high precision can improve temperature measurement accuracy through manual temperature calibration. It measure pH, mV, , temperature of the sample. Equipped with built-in system menu helps in customize selection of up to 9 functional parameters. The unique calibration due reminder alerts user to calibrate the pH meter regularly. The Multi-mode power solution ensures smooth instrument usage. Its complied in accordance with standards.

This ph meter is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

The portable pH/ meter has applications in waste water treatment & water management, aquaculture, food & beverage processing, environmental monitoring & research and educational purpose.

Specifications

pH range	(-2.00) to 20.00 pH
pH accuracy	± 0.002 pH
pH resolution	0.1, 0.01, 0.001 pH
Calibration points	1 - 5 points
Calibration solutions	(pH 4.01 / 7.00 / 10.01 / 12.45), (pH 1.68 / 4.01 / 6.86 / 9.18 / 12.45), (pH 1.09 / 4.65 / 6.79 / 9.23 / 12.75) or user defined
Temperature compensation	0 to 100 °C, 32 to 212 °F, Manual or Automatic
mV range	(-1999) to 1999 mV
mV accuracy	± 0.2 mV
mV resolution	0.1, 1 mV
Temperature measuring range	0 to 100 °C, 32 to 212 °F
Temperature accuracy	± 0.5 °C, ± 0.9 °F
Temperature resolution	0.1 °C
Hold function	Manual
Storage/memory	Stores up to 500 data sets
Communication output	interface
Connector
Dimension (L × W × H)	170 × 85 × 30 mm
Weight	300 g
Battery life	About 150 hours
Power	4.5 V “AA batteries or DC 5 V power adapter

Features

Measurement pH range: (-2.00) to 20.00 pH

pH accuracy: ± 0.002 pH up to three decimal points

Auto calibration recognition using 1 to 5 point calibration for pH mode

1 point offset calibration for mode allows to adjust the display value to a known standard

The mV measurements (relative & absolute) for accurate readings

Automatic end point locking system for stable measurement (browsing & recording)

Automatic electrode slope display helps user decide whether to replace the sensor

Extended memory can store up to 500 sets of measurement data

Built-in clock automatically notes the date, time

communications interface sends data to PC

One touch reset automatically recovers the meter to factory default settings

FAQs

1. What are the key factors to consider when selecting this ph meter for laboratory use?

When selecting this ph meter, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this ph meter be calibrated to ensure accurate results?

It is recommended to calibrate this ph meter at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this ph meter?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this ph meter be used with different types of samples, and are there any compatibility considerations?

Yes, this ph meter can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the ph meter malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.