The HD2105.1 and HD2105.2
are portable instruments with a large LCD display. They measure the pH and the redox potential (ORP) in mV. They measure the temperature using Pt100 or Pt1000 immersion, penetration or contact probes. The electrode calibration can be carried out on one, two or three points and the calibration sequence can be chosen from a list of 13 buffers. The temperature probes are equipped with an automatic recognition module and factory calibration data are stored inside.
The HD2105.2 is a datalogger. It stored up to 34,000 pH and temperature samples which can be transferred to a PC from the instrument connected via the multi-standard RS232C serial port and USB 2.0. The storing interval, printing, and baud rate can be configured using the menu.
The HD2105.1 and HD2105.2 models are fitted with an RS232C serial port and can transfer the acquired measurements in real time to a PC or to a portable printer. The Max, Min and Avg function calculate the maximum, minimum or average values.
Other functions include: the relative measurement REL, the Auto-HOLD function, and the automatic turning off that can also be excluded.
The instruments have IP67 protection degree.
|Length x Width x Height||185x90x40mm|
|Weight||470g (complete with batteries)|
|Display||2x4½ digits plus symbols|
|Working relative humidity||0…90%RH without condensation|
|Batteries||4 1.5V type AA batteries|
|Autonomy||200 hours with 1800mAh alkaline batteries|
|Power absorbed with instrument off||20µA|
|Mains||Output mains adapter 12Vdc / 1000mA|
|Security of memorized data||Unlimited, independent of battery charge conditions|
|Date and Time||Schedule in real time|
|Accuracy||1min/month max drift|
|Measured Values Storage - model HD2105.2|
|Type||2000 pages containing 17 samples each|
|Quantity||Total of 34000 samples|
|Storage interval||1s, 5s, 10s, 15s, 30s, 1min, 2min, 5min, 10min, 15min, 20min, 30min and 1h.|
|Type||RS232C electrically isolated|
|Baud rate||Can be set from 1200 to 38400 baud|
|Flow control||Xon / Xoff|
|Serial Cable lengh||Max. 15m|
|Selectable print interval||1s, 5s, 10s, 15s, 30s, 1min, 2min, 5min, 10min, 15min, 20min, 30min and 1h.|
|USB Interface - model HD2105.2|
|Type||1.1 - 2.0 electrically isolated|
|Input module for the temperature probes||8-pole male DIN45326 connector|
|pH/mV input||Female BNC|
|Serial interface and USB||8-pole MiniDin connector|
|Mains adapter||2-pole connector (positive at centre)|
|pH Measurement by instrument|
|Resolution||0.01 or 0.001pH selectable from menu|
|Calibration error @25°C|||Offset|>20mV|
|Slope||<50mV/pH or Slope>63mV/pH|
|Sensitivity||< 85% or Sensitivity > 106.5%|
|Temperature compensation||-50…+150°C automatic/manual|
DeltaLog9: Software for download and management of the data on PC using Windows 98 to
Vista operating systems