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pH DISSOLVED OXYGEN BENCHTOP LABORATORY METER |
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HD 2259.2 pH
Dissolved Oxygen Benchtop Meter |
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HD2259.2 Laboratory
Benchtop Meter. pH or mV, concentration of dissolved oxygen or
saturation index and saturation index and temperature.
The HD2259.2 measures pH, mV, redox potential (ORP) with pH, redox
electrodes
or electrodes with separate reference; the concentration of dissolved
oxygen in liquids (in mg/l), and saturation index (in %), using SICRAM
combined probes of polarographic type with two or three electrodes and
integrated temperature sensor.
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Measured values
pH - mV - mg/l O2 - %O2 - mbar - °C - °F
Measured values storing
Quantity 2000 screens
Storage interval 1s … 999s
Calibration storage
Quantity Last 8 calibrations of each physical
quantity
RS232C serial interface standard
USB Interface optional |
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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 pH electrode calibration can be carried out on one or five points and
the
calibration sequence can be chosen from a list of 13 buffers.
The pH electrode calibration can be carried out on one or five points and
the
calibration sequence can be chosen from a list of 13 buffers Temperature
compensation
can be automatic or manual.
The instruments of the series HD22… are datalogger, they memorize up to
2,000 samples of data:
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 (S’print-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.
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| Measurement of pH by
instrument |
| Measuring range |
-9.999…+19.999pH |
| Resolution |
0.01 o 0.001pH selectable from menu |
| Accuracy |
±0.001pH ±1digit |
| 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 dissolved
oxygen by instrument |
| Resolution |
0.01mg/l |
| Measuring range |
0.00…90.00mg/l |
| Accuracy |
±0.03mg/l±1digit
(60...110%, 1013mbar, 20...25°C) |
| Measurement of saturation
index of dissolved oxygen |
| Measuring range |
0.0…600.0% |
| Resolution |
0.1% |
| Accuracy |
±0.3% ±1digit (in the range 0.0…199.9%)
±1% ±1digit (in the range 200.0…600.0%) |
| Automatic temperature
compensation |
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0…50°C |
| Measurement of barometric
pressure |
| Measuring range |
0.0…1100.0mbar |
| Resolution |
0.1mbar |
| Accuracy |
±2mbar±1digit between 18 and 25°C
±(2mbar+0.1mbar/°C) in the remaining range |
| Salinity setting |
| Setting |
directly from menu or automatically by
conductivity
measurement |
| Setting range |
0.0…70.0g/l |
| Resolution |
0.1g/l |
Temperature measurement
with the sensor inside the dissolved
oxygen probe |
| Measuring range |
0.0…50.0°C |
| Resolution |
0.1°C |
| Accuracy |
±0.1°C |
| Drift after 1 year |
0.1°C/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 |
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Ordering codes
HD 2259.2 Bench-top pH
meter-Oxygen meter-Thermometer with back-lighted display to measure pH, mV,
ORP, by pH, redox, or separated reference electrodes, the concentration of
the dissolved oxygen of liquids, saturation index, by polarographic type
combined SICRAM probes and integrated temperature sensor. Datalogger of pH,
mV, dissolved oxygen concentration, saturation index 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, oxygen probes, calibrating solutions,
TP47… series temperature probes with SICRAM module and cables for PC
connection have to be ordered separately.
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