Benchtop Multi-parameter Water Quality Meter LMPWM-A40 Catalog

Overview

Benchtop Multi-parameter Water Quality Meter LMPWM-A40 with 7 inch TFT display measures pH, mV, relative mV, water hardness, and temperature and Ion concentration of the sample. With expanded memory, it stores and recalls up to 1000 readings. Calibration due reminder informs operator to calibrate the meter regularly.

Specifications :

pH Range	-2.00 to 20.00 pH
pH Accuracy	± 0.002 pH
pH Resolution	0.1/0.01/0.001 pH, selectable
pH Calibration Points	1 to 5 Points
pH Buffer Solutions	USA ( pH 4.0/7.00/10.01) or NIST (pH 4.01/6.86/9.18) or DIN buffers
mV Range	± 2000 mV
mV Accuracy	± 0.2 mV
mV Resolution	0.1 mV, selectable
mV Calibration Points	1 Point, only for relative mode
Ion Measurement Range	0.01 to 30000 ppm, mg/l, mol/l, mmol/l (Refer range of ion selection)
Ion Measurement Accuracy	±0.5% F.S (Monovalent), ±1% F.S (Divalent)
Ion Measurement Resolution	0.001/0.01/0.1/1
Ion Measurement Calibration Points	2 to 5 points
Ion Measurement Calibration Solutions	0.001/0.01/0.1/1/10/100/1000/10000 ppm, mg/L, mol/L
Ion Measurement Methods	Direct reading, known addition, known subtraction, sample addition, sample subtraction
Water Hardness Measurement Range	0.05 to 200 mmol/L, 0 to 1120 °dH, 0 to 1404 °e, 0 to 2000 °fH, 0 to 8000 mg/L (Ca²⁺), 0 to 19999 mg/L (CaCO₃)
Water Hardness Measurement Accuracy	± 1% F.S
Water Hardness Measurement Resolution	0.001/0.01/0.1/1
Water Hardness Calibration Points	2 to 5 points
Water Hardness Calibration Solutions	0.01/0.1/1/10/100 mmol/L
Temperature Measurement Range	0 to 105°, 32 to 212°F
Temperature Measurement Accuracy	± 0.5°C, ± 0.9°F
Temperature Measurement Resolution	0.1°C, 0.1°F
Temperature Measurement Calibration Points	1 Point
Temperature Range	0 to 100°C, 32 to 221°F
Temperature Compensation Mode	Manual or Automatic
Data Hold Function	Manual or Automatic endpoint detection
Stability Criteria	Low or High
Calibration Due Alarm	1 to 31 Days
Reset Function	Yes
Memory	Stores up to 1000 sets data
Connector	BNC connector
Output	USB communication interface
Display	7 inch TFT LCD display
Power Supply	DC 12 V, AC adapter, AC 220 V, 50 Hz
Dimensions	240 × 220 × 80 mm
Net Weight	1.7 kg
Gross Weight	2.2 kg

Features :

• • Common features Auto read feature to lock and read endpoint measurement
  • Stability indicator to record stable measurement reading
  • Reset feature automatically sets all function to default condition
  • Automatic interval readings, sends the measurement data to the computer/printer
  • USB communication interface to transfer store data
  • pH features 1-5 points push button calibration to automatically identify pH buffer
  • Convenient to select pH buffer standard (USA/NIST/DIN) or custom calibration solutions
  • Automatic temperature compensation, provides accurate readings over entire pH range
  • Automatic electrode diagnosis with pH slope, offset display
  • Alarm when pH readings are out of range
  • ORP features 1 point offset calibration, can adjust display value to known standard
  • Relative and absolute millivolt mode of measurement
  • Water Hardness features 2 to 5 points calibration with high to low concentration
  • Advanced measurements using different measurement units
  • Ion features 2 to 5 2 to 5 points calibration, when 8 concentration points are selected
  • Different concentration units like ppm, mg/l, mol/l, mmol/l for selection
  • Automatic recognition of ion selective electrode
  • Different Ion measurement methods for selection
  • Calibration report with details of calibration standard and slope