LogR 320/350/370 pH Measuring Instrument User Manual

The LogR pH meter uses the patented LogR technology to measure the temperature by measuring the membrane resistance of a dedicated pH electrode, thus achieving pH and temperature measurement with only one pH electrode, suitable for small volume sample measurement


LogR 320/350/370 pH Measuring Instrument User Manual - cover page
Brand
LogR
Category
Other
Document type
User Manual
Language
Chinese
Pages
2
File format
PDF
File size
123 KB
Published
05 January, 2012
Updated
30 September, 2023
MD5 checksum
28DFC44BEC8E1BE1FF5A2C9844095D60

About this manual

The LogR pH measuring instrument uses patented LogR technology to measure pH and temperature simultaneously with a single electrode. It offers a large LED display showing pH, mV and temperature, and supports 2‑point or 3‑point calibration for accurate results.

The instrument is available in several models (320, 350, 370) and includes options such as RS232 data output, explosion‑proof versions that meet US FM safety standards, and a rugged design suitable for field use. Technical specifications cover pH range 0‑14, temperature range 0‑100 °C, and various accuracy and resolution options. This manual is written in Chinese.

What's inside

  • Features
  • Technical Specifications
  • Calibration
  • Explosion‑proof Instrument
  • Operating Environment
  • Ordering Guide
  • Display and Interfaces
  • Power and Certification

Specifications

pH measurement range0.00‑14.00
Resolution0.01‑0.1
Relative accuracy (pH)±0.02
Temperature measurement range0.0‑100.0 °C
DisplayLED large screen showing pH, mV, temperature
Data outputRS232
Power source3 × AA alkaline batteries
CertificationsCE, CSA, UL, FM (explosion‑proof version)
Operating temperature5‑45 °C
Relative humidity range5‑85 %

Frequently asked questions

What is the pH measurement range of the LogR instrument?

It measures pH from 0.00 to 14.00.

Is there an explosion‑proof version of the instrument?

Yes, a fire‑spark‑proof version is available and meets US FM safety requirements.

What power source does the instrument use?

It is powered by three AA alkaline batteries.

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