Phone: 253-927-6186

HD 98569 Portable multi-parameter data logger for electrochemical parameters measurement and logging.
The HD 98569 is a portable multi-parameter data logger for electrochemical measures: pH, conductivity,
dissolved oxygen and temperature. It is fitted with a large back-lighted LCD display.
The instrument measures:
-  pH, mV, redox potential (ORP) with pH, redox or combined pH/temperature electrodes complete with SICRAM module;
-  conductivity, resistivity in liquids, total dissolved solids (TDS), and salinity with combined 4-ring and 2-ring
conductivity and temperature probes with SICRAM module.
-  Concentration of dissolved oxygen in liquids (in mg/l), saturation index (in %) using SICRAM combined
probes of polarographic type with two or three electrodes and integrated temperature sensor.

HD 98569 multi-parameter data logger

Model  Description 
HD98569  Multi-parameter data logger for electrochemical measures.

The instruments equipped with HD22BT Bluetooth option can transfer the data without any connection to a PC fitted with USB/Bluetooth converter HD USBKL1, or to the printer Sprint-BT with Bluetooth interface or to a PC with Bluetooth input. The serial connection RS232C can be used for direct printing of labels with a 24 column printer (Sprint-BT).

The instrument ifs fitted with input for the measurement of temperature with Pt100 immersion,
penetration or contact probes with SICRAM module.
-  The pH electrode calibration can be carried out on one or five points and the calibration sequence
can be chosen from a list of 8 buffers. Temperature compensation can be automatic or manual.
-  The conductivity probe calibration can be performed with automatically detected conductivity
calibration solutions: 147μS/cm, 1413μS/cm, 12880μS/ cm, 111800μS/cm or manually with calibration
solutions having different values.
-  The dissolved oxygen probes quick calibration function guarantees long term correctness of the
performed measurements.
-  pH, conductivity dissolved oxygen and temperature probes fitted with SICRAM module can store
factory and calibration data inside.

HD 98569 specifications
Measured values pH - mV -  χ - Ω - TDS - NaCl - mg/l O2 - %O2 - °C - °F
Working temperature
Storing temperature
Working relative humidity
Protection degree
-5 -  50°C
-25  - 65°C
0 -  90% RH without condensate
RS232Cserial interface
Baud rate
Data bit
Stop bit
Flow control
Length of serial cable
USB interface

RS232C electrically isolated
Can be set from 1200 to 38400 baud
Max 15m

1.1 - 2.0 electrically isolated
Bluetooth interface   Optional for PCs fitted with Bluetooth input or HD USB.KL1 Bluetooth / RS232 adapter. The interface can be installed in Delta Ohm only.
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 or Slope < 50mV/pH
Sensitivity > 106.5% or Sensitivity < 85%
Measurement of mV by instrument
Measuring range -1999.9 - +1999.9mV
Resolution 0.1mV
Accuracy ±0.1mV ±1digit
Measurement of saturation index of dissolved oxygen
Measurement range 0.0 - 600.0%
Resolution 0.1%
Accuracy instrument ±0.3% ±1digit (in the range 0.0 - 199.9%)
±1% ±1digit (in the range 200.0 - 600.0%)
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 O2 probe
Measurement range 0.0 - 50.0°C
Resolution 0.1°C
Accuracy instrument ±0.1°C
Measurement of temperature by instrument
Pt100 Measurement range -50 - +150°C
Resolution 0.1°C
Accuracy instrument ±0.1°C ±1digit
Measurement of conductivity by instrument
  Range Resolution
Measurement range (K cell=0.01) 0.000 - 1.999μS/cm 0.001μS/cm
Measurement range (K cell=0.1) 0.00 - 19.99μS/cm 0.01μS/cm
Measurement range (K cell=1) 0.0 - 199.9μS/cm
200 - 1999mS/cm
2.0 - 19.99mS/cm
20 - 199.9mS/cm
Measurement range (K cell=10) 200 - 1999mS/cm 1mS/cm
Accuracy (conductivity) instrument ±0.5% ±1digit
Measurement of resistivity by instrument
Measurement range (K cell=0.01) Up to 1GΩ cm  
Measurement range (K cell=0.1) Up to 100MΩ cm  
Measurement range (K cell=1) 5.0 - 199.9Ωcm
200 - 999Ωcm
1.00k - 19.99kΩcm
20.0k - 99.9kΩcm
100k - 999kΩcm
1 - 10MΩcm
Measurement range (K cell=10) 0.5 - 5.0Ωcm 0.1Ωcm
Accuracy (resistivity) instrument ±0.5% ±1digit
Measurement of total dissolved solids
Measurement range (K cell=0.01) 0.00 - 1.999 mg/l 0.005 mg/l
Measurement range (K cell=0.1) 0.00 - 19.99 mg/l 0.05 mg/l
Measurement range (K cell=1) 0.0 - 199.9 mg/l
200 - 1999 mg/l
2.00 - 9.99 g/l
20.0 - 199.9 g/l   
0.5 mg/l
1 mg/l
0.01 mg/l
0.1 g/l
Measurement range (K cell=10) 100 - 999 g/l    1 g/l
Accuracy (TDS) instrument ±0.5% ±1digit
Measurement of salinity
Measurement range 0.000 - 1.999 g/l
2.00 - 19.99 g/l
20.0 - 199.9 g/l
1 mg/l
10 mg/l
0.1 g/l
Accuracy (salinity) instrument ±0.5% ±1digit

HD 98569 The instrument can measure three electrochemical quantities at the same time: pH or ORP,
conductivity, TDS or salinity, dissolved oxygen and temperature.
Three optoisolated inputs. Input 1: pH, ORP or temperature. Input 2: dissolved oxygen or temperature.
Input 3: conductivity, total dissolved solids, salinity or temperature. It can measure, store or download the
readings through the multistandard RS232C/USB2.0 serial port. The instrument is equipped with four 1.5V
batteries, instruction manual, software DeltaLog 11, carrying case and SICRAM module pH471 with 1m cable.
Connection and data download cables, calibration solutions, electrodes and probes have to be ordered

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Hotek Technologies, Inc
tel: 253-927-6186