HD 2256.2 pH Benchtop Meter Data Logger.
HD2256.2 Meter Datalogger. pH or mV, conductivity or resistivity or TDS or salinity and temperature.
The HD2256.2 measures pH, mV, redox potential (ORP) with pH, redox electrodes or electrodes with
separate reference.
Conductivity and resistivity in liquids, total dissolved solids (TDS) and salinity with
combined 4-ring and 2-ring conductivity/temperature probes.
The conductivity probes can have a direct input or with SICRAM module. The inputs are separate.
HD 2256.2 pH Benchtop Meter Data Logger.
| Model | Description |
|---|---|
| HD 2256.2 | HD 2256.2 pH Benchtop Meter Data Logger. |
All models are fitted with input for the measurement of temperature with Pt100 or Pt1000 immersion,
penetration or contact probes.
The probes are equipped with an automatic detection module, with the factory calibration settings already
being memorized inside.
The data can be transferred from the instrument connected to a PC via the multistandard
RS232C
serial port and USB 2.0. The storing parameters can be configured using the menu.
The RS232C serial port can be used to transfer the acquired measurements to a 24 column portable
printer in real time (Sprint-BT).
The instruments equipped with HD22BT (Bluetooth) option can transfer data
without any
connection to a PC or printer fitted with Bluetooth input or through Bluetooth/RS232C converter.
The software DeltaLog11 allows instrument management and configuration, and data processing on PC.
| Measurement of pH by instrument | |
| Measuring range | -9.999 - +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 > 63mV/pH o Slope < 50mV/pH Sensitivity > 106.5% or Sensitivity < 85% |
| Calibration points | Up to 5 points from a list of 13
automatically detected buffers. |
| 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 - +1999.9mV |
| Resolution | 0.1mV |
| Accuracy | ±0.1mV ±1digit |
| Drift after 1 year | 0.5mV/year |
| Measurement of temperature by instrument | |
| Pt100 Measuring range | -50 - +150°C |
| Pt1000 Measuring range | -50 - +150°C |
| Resolution | 0.1°C |
| Accuracy | ±0.1°C ±1digit |
| Drift after 1 year | 0.1°C/year |
| Conductivity measurement by instrument | |
| Measuring range (Kcell=0.01) / Res. | 0.000 - 1.999μS/cm / 0.001μS/cm |
| Measuring range (Kcell=0.1) / Res. | 0.00 - 19.99μS/cm / 0.01μS/cm |
| Measuring range (K cell=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 |
| Measuring range (Kcell=10) / Ris. | 200 - 1999mS/cm / 1mS/cm |
| Accuracy (conductivity) | ±0.5% ±1digit |
| Measurement of resistivity by instrument | |
| Measuring range (Kcell=0.01) / Res. | Up to 1GΩcm / (*) |
| Measuring range (Kcell=0.1) / Res. | Up to 100MΩcm / (*) |
| Measuring range (K cell=1) / Res. | 5.0 - 199.9Ωcm / 0.1Ωcm 200 - 999Ωcm / 1Ωcm 1.00kΩ - 19.99kΩcm / 0.01kΩcm 20.0kΩ - 99.9kΩcm / 0.1kΩcm 100kΩ - 999kΩcm / 1kΩcm 1 - 10MΩcm / 1MΩcm |
| Measuring range (Kcell=10) / Res. | 0.5 - 5.0Ωcm / 0.1Ωcm |
| Accuracy (resistivity) | ±0.5% ±1digit |
| Measurement of total dissolved solids (with coefficient χ/TDS=0.5) | |
| Measuring range (Kcell=0.01) / Res. | 0.00 - 1.999mg/l / 0.005mg/l |
| Measuring range (Kcell=0.1) / Res. | 0.00 - 19.99mg/l / 0.05mg/l |
| Measuring range (K cell=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 - 199.9 g/l / 0.1 g/l |
| Measuring range (Kcell=10) / Res. | 100 - 999 g/l / 1 g/l |
| Accuracy (total dissolved solids) | ±0.5% ±1digit |
| Measurement of salinity by instrument | |
| Measuring range / Resolution | 0.000 - 1.999g/l / 1mg/l 2.00 - 19.99g/l / 10mg/l 20.0 - 199.9 g/l / 0.1 g/l |
| Accuracy (salinity) | ±0.5% ±1digit |
| Automatic/manual temperature compensation | |
| Reference temperature | 0...100°C with αT = 0.00 - 4.00%/°C 0 - 50°C |
| Conversion factor χ/TDS | 0.4 - 0.8 |
| Cell constant K (cm-1) already set on instrument |
0.01 - 0.1 - 0.5 - 0.7 - 1.0 - 10.0 |
| Cell constants K(cm-1) that can be set by user | 0.01 - 20.00 |
| Standard solutions automatically detected (@25°C) | |
| 147μS/cm 1413μS/cm 12880μS/cm 111800μS/cm |
|
Ordering codes
HD 2256.2 Bench-top pH meter-Conductivity meter-Thermometer with back-lighted display, to measure pH,
mV, ORP by pH, redox, separated reference electrodes, one input for a pH/temperature combined probe,
un one input for a combined pH/temperature probe; it measures conductivity, liquid resistivity, total dissolved
solids (TDS) and salinity by combined conductivity and temperature probes with 2 or 4 electrodes with direct
input or with SICRAM module.
Datalogger for pH or mV, conductivity or resistivity or TDS and temperature.
RS232 C serial output or USB 2.0 for data download to a PC or printer from memory or in real time. Input for
Pt100 or Pt1000 temperature probes provided with SICRAM module. It is equipped with regulated power
supply SWD10, instructions manual, software DELTALOG 11. Electrodes, conductivity probes, buffer
solutions, TP47 series temperature probes with SICRAM module and cables for PC connection have to
be ordered separately.