Phone: 253-927-6186
 Email: sales@hotektech.com

HD3456.2 Laboratory Benchtop Meter measures pH, mV, redox potential (ORP), conductivity, resistivity in liquids, total dissolved solids (TDS), and salinity The HD3456.2 measures pH, mV, redox potential (ORP), conductivity, resistivity in liquids, total dissolved solids (TDS), and salinity using combined 4-ring and 2-ring conductivity/temperature probes.
Other common function of this instrument series include: Max, Min and Avg function, the Auto-HOLD function, the automatic turning off which can also be disabled.

HD3456.2 Laboratory Benchtop Meter.

Model  Description 
HD 3456.2  HD3456.2 Laboratory Benchtop Meter

Temperature is measured by Pt100 or Pt1000 immersion, penetration or contact probes.
The pH electrode calibration, as well as manual, can be carried out on one, two or three points and the calibration sequence can be chosen from a list of 13 buffers.
The probe calibration can be performed automatically in one or more of the 147µS, 1413µS, 12880µS or
111800μS/cm conductivity calibration solutions. The display shows continually the temperature in °C or °F and one selectable parameter according to the connected probe type, i.e. in case of conductivity probe it is possible to select between χ or Ω or TDS or g/l.

HD3456.2 Laboratory Benchtop Meter.
Measurement of pH by instrument
Measuring range -2.000 - +19.999pH
Resolution 0.01 to 0.001pH selectable from menu
Accuracy ±0.001pH ±1digit
Input impedance >10Exp12Ω
Calibration error @25°C |Offset| > 20mV
Slope > 50mV/pH o Slope < 63mV/pH
Sensitivity < 85% or Sensitivity > 106.5%
Automatic / manual
temperature compensation
-50 - +150°C
Automatically detected pH
standard solutions (@25°C)
1.679pH - 2.000pH - 4.000pH - 4.008pH
4.010pH - 6.860pH - 6.865pH - 7.000pH
7.413pH - 7.648pH - 9.180pH - 9.210pH
10.010pH
Measurement of mV by instrument
Measuring range -1999.9 -0 +1999.9mV
Resolution 0.1mV
Accuracy ±0.1mV ±1digit
Drift after 1 year 0.5mV/year
Measurement of conductivity by instrument
Measurement range (Kcell=0.01) / Res. 0.000 - 1.999µS/cm / 0.001µS/cm
Measurement range (Kcell=0.1) / Res. 0.00 - 19.99µS/cm / 0.01µS/cm
Measurement range (Kcell=1) / Res. 0.0 - 199.9µS/cm / 0.1µS/cm
200 - 1999µS/cm / 1µS/cm
2.00 - 19.99mS/cm / 0.01mS/cm
20.0 - 199.9mS/cm / 0.1mS/cm
Range di misura (Kcell=10) / Res. 200 - 1999mS/cm / 1mS/cm
Accuracy (conductivity) ±0.5% ±1digit
Measurement of resistivity by instrument
Measurement range (Kcell=0.01) / Res. Up to 1GΩcm / (*)
Measurement range (Kcell=0.1) / Res. Up to 100MΩcm / (*)
Measurement range (Kcell=1) / Res. 5.0 - 199.9Ωcm / 0.1Ωcm
200 - 999Ωcm / 1OΩcm
1.00kΩ - 19.99kΩcm / 0.01kΩcm
20.0kΩ - 99.9kΩcm / 0.1kΩcm
100kΩ - 999kΩcm / 1kΩcm
1 - 10MΩcm / 1MΩcm
Measurement range (Kcell=10) / Res. 0.5 - 5.0Ωcm / 0.1Ωcm
Accuracy (resistivity) ±0.5% ±1digit
Measurement of total dissolved solids (with coefficient ./TDS=0.5)
Measurement range (Kcell=0.01) / Res. 0.00 - 1.999mg/l / 0.005mg/l
Measurement range (Kcell=0.1) / Res. 0.00 - 19.99mg/l / 0.05mg/l
Measurement range (Kcell=1) / Res. 0.0 - 199.9 mg/l / 0.5 mg/l
200 - 1999 mg/l / 1 mg/l
2.00 - 19.99 g/l / 0.01 g/l
20.0 - 99.9 g/l / 0.1 g/l
Measurement range (Kcell=10) / Res. 100 - 999 g/l / 1 g/l
Accuracy (total dissolved solids) ±0.5% ±1digit
Measurement of salinity
Measurement range / Resolution 0.000 - 1.999g/l / 1mg/l
2.00 - 19.99g/l / 10mg/l
20.0 - 199.9g/l / 0.1g/l
Accuracy (salinity) ±0.5% ±1digit
Measurement of temperature by instrument
Pt100 Measuring range -50 - +200°C
Pt1000 Measuring range -50 - +200°C
Resolution 0.1°C
Accuracy ±0.25°C ±1digit
Drift after 1 year 0.1°C/year
Automatic/manual temperature compensation
  0 - 100°C with aT = 0.00 - 4.00%/°C
Reference temperature 20°C or 25°C selectable from menu
Conversion factor ./TDS 0.4 - 0.8
Cell constant K (cm-1) 0.01 - 0.1 - 0.7 - 1.0 - 10.0
Standard solutions automatically detected (@25°C)
  147µS/cm
1413µS/cm
12880µS/cm
111800µS/cm

Ordering codes
HD 3456.2 Bench-top pH meter-Conductivity meter-Thermometer measures pH, mV, ORP values by pH,
redox or separated reference electrodes, conductivity, liquids resistivity, total dissolved solids (TDS) and
salinity by combined conductivity and temperature probes by Pt100 or Pt1000 probes.
Datalogger which stores maximum, minimum, average value. RS232 C serial output or USB 2.0 for data
download to a PC or printer from memory or in real time. Functions: REL, HOLD, auto power off which can
be disabled., protection degree IP 66. Battery power supply or mains power supply by SWD10 (optional).
Complete with 3 batteries, instructions manual, software DeltaLog 9 suitable from version 2. Electrodes,
conductivity probes, calibrating solutions, TP47� series temperature probes with SICRAM module,
cable for PC connection and outer power supplier have to be ordered separately.

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Company

  • Hotek Technologies, Inc
  • tel: 253-927-6186
  • sales@hotektech.com
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