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Product Description

The Labmart LMMP32 Water Quality Multiparameter is a laboratory benchtop meter offering 9 measurement modes: pH, ORP, Ion, Dissolved Oxygen, Conductivity, TDS, Salinity, Resistivity and Temperature. It features automatic temperature compensation, up to 5-point calibration for pH and conductivity-related modes, automatic endpoint, 500-data memory with date/time, electrode diagnosis and selectable measurement settings.

3. Detailed Product Description

Product Overview

The LMMP32 Water Quality Multiparameter is a multi-function laboratory instrument designed for comprehensive water-quality measurement. The system combines nine measurement modes in one platform:

  • pH
  • ORP
  • Ion
  • Dissolved Oxygen (DO)
  • Conductivity
  • TDS
  • Salinity
  • Resistivity
  • Temperature

The instrument provides selectable measurement resolutions, configurable calibration settings and Automatic Temperature Compensation (ATC). An automatic endpoint function freezes stable readings for easier recording, while the built-in real-time clock timestamps stored data.

The LMMP32 can store and recall up to 500 readings and provides a setup menu for configuring calibration points, measurement stability conditions, temperature units and date/time.

Key Features & Benefits

  • 9-in-1 water quality multiparameter
  • pH, ORP, Ion, DO, Conductivity, TDS, Salinity, Resistivity and Temperature modes
  • Selectable °C or °F temperature units
  • Automatic Temperature Compensation (ATC)
  • Automatic endpoint function
  • Help messages for operating guidance
  • Customizable calibration and stability settings
  • Factory reset function
  • 500-reading memory
  • Real-time clock with date/time data stamping
  • pH calibration up to 5 points
  • Automatic pH buffer recognition
  • Selectable USA, NIST, DIN and user-defined buffer standards
  • Electrode slope calculation
  • Calibration-due reminder
  • Absolute and relative ORP measurement
  • Adjustable TDS conversion factor
  • Linear or pure-water temperature compensation modes
  • Practical salinity or seawater measurement standards
  • DO pressure correction
  • Automatic or manual temperature compensation

4. Technical Specifications

Specification LMMP32
Product Type Water Quality Multiparameter Meter
Model LMMP32
Brand Labmart
Measurement Modes 9-in-1
pH Range -2.000 to 20.000 pH
pH Resolution 0.001 / 0.01 / 0.1 pH, selectable
pH Accuracy ±0.002 pH
pH Calibration Up to 5 points
pH Buffer Standards USA, NIST, DIN, User-defined
ORP Range 0 to ±1999.9 mV
ORP Resolution 0.1 / 1 mV, selectable
ORP Accuracy ±0.2 mV
ORP Calibration 1-point offset calibration
Ion Range 0.00 to 19999, depending on ISE range
Ion Resolution 0.001 / 0.01 / 1, automatic
Ion Accuracy ±0.5%, ±1% Full Scale
Ion Measurement Mode Absolute mV or Relative mV
Conductivity Range 0–200 mS/cm
Conductivity Resolution 0.01 / 0.1 / 1
Conductivity Accuracy ±0.5% Full Scale
Cell Constant 0.1 / 1 / 10, user-defined
Temperature Coefficient 0.0–10.0% per °C
Conductivity Calibration Up to 5 points
Calibration Solutions 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm*, 111.8 mS/cm*
Compensation Modes Linear or Pure Water
TDS Range 0–10 ppt; maximum 200 ppt depending on factor setting
TDS Resolution 0.01 / 0.1 / 1
TDS Accuracy ±1% Full Scale
TDS Factor 0.0–1.0
Salinity Range 0–80 ppt
Salinity Resolution 0.01 / 0.1 / 1
Salinity Accuracy ±1% Full Scale
Salinity Measurement Mode Practical Salinity (PSU) or Seawater Measurement Standard (ppt)
Resistivity Range 0–100 MΩ
Resistivity Resolution 1 / 0.1 / 0.01
Resistivity Accuracy ±1% Full Scale
DO Range 0.00–20.00 mg/L / 0.0–200.0% Saturation
DO Resolution 0.01 / 0.1, selectable
DO Accuracy ±0.2 mg/L / ±2.0%
DO Calibration 1 or 2 points
Pressure Correction 60.0–112.5 kPa / 450–850 mmHg, manual
Temperature Range 0–100°C / 32–212°F
Temperature Compensation Automatic or Manual
Temperature Accuracy ±0.5°C / ±0.9°F
Auto-Off Yes
Reset / Auto-Hold Yes
Electrode Diagnosis Slope, Offset
Stability Conditions High or Low, selectable
Calibration Due Reminder 1–30 days, selectable
Memory 500 data sets with Date/Time
Connectors pH BNC; 6-pin connector; Conductivity R
Packing Dimensions 310 × 250 × 190 mm
Gross Weight 2 kg
HSN Code 90275090

*The brochure's specification table contains the calibration-solution values as printed; they have been retained without modification.

5. Applications

The LMMP32 is suitable for laboratory water-quality measurements involving:

  • pH measurement
  • ORP measurement
  • Dissolved oxygen analysis
  • Conductivity measurement
  • TDS measurement
  • Salinity measurement
  • Resistivity measurement
  • Ion measurement using suitable ISEs
  • Temperature measurement

Potential laboratory applications include routine water-quality testing, chemical analysis, research and educational laboratory measurements.

6. Suitable For

  • Water-quality laboratories
  • Environmental laboratories
  • Chemical laboratories
  • Research laboratories
  • Pharmaceutical laboratories
  • Academic and teaching laboratories
  • Industrial quality-control laboratories
  • Laboratories performing multiparameter water analysis
  • Laboratories using ion-selective electrodes

7. FAQs

1. What is the LMMP32?

The LMMP32 is a 9-in-1 water quality multiparameter meter.

2. Which parameters can the LMMP32 measure?

It provides Ion, DO, Conductivity, pH, ORP, TDS, Salinity, Resistivity and Temperature modes.

3. What is the pH measurement range?

The pH range is -2.000 to 20.000 pH.

4. How many pH calibration points are available?

The LMMP32 supports up to 5-point pH calibration with automatic buffer recognition.

5. What conductivity range does it measure?

The conductivity range is 0–200 mS/cm.

6. What is the dissolved oxygen range?

The DO range is 0.00–20.00 mg/L or 0.0–200.0% saturation.

7. What is the TDS range?

The specified TDS range is 0–10 ppt, with a maximum of 200 ppt depending on factor setting.

8. What is the salinity range?

The salinity range is 0–80 ppt.

9. How much data can the instrument store?

The LMMP32 can store up to 500 data sets with date and time.

10. Does it provide automatic temperature compensation?

Yes. ATC is available, and the instrument also allows automatic or manual temperature compensation.

11. Can the LMMP32 measure ions?

Yes. The instrument has an Ion mode with a range of 0.00 to 19999, depending on the range of the ISE used.

12. What optional electrodes are available?

The brochure identifies Fluoride ISE, Nitrate ISE and ORP Electrode as optional accessories.



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