The HD2124.1 and HD2124.2 are portable instruments with two inputs and large LCD display. They perform measurements of absolute, relative and differential pressure, and temperature.
The PP471 electronic module is used to measure the pressure. The PP471 electronic module works as an interface between the instrument and the TP704 and TP705 series Delta Ohm probes. The temperature is detected with immersion, penetration, contact or air Pt100 probe with SICRAM module or 4 wire direct Pt100 probe.
The temperature probes are fitted with SICRAM module and the factory calibration settings are already memorized inside. Upon turning on the instrument automatically detects them.
The HD2124.2 instrument is a datalogger. It memorizes up to 32, 000 samples which can be transferred from the instrument connected to a PC 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 HD2124.2 model is also 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, the Peak function detects the presence of pressure peaks, the A-B function calculates the difference of the pressures or temperatures measured by the
two inputs A and B. Other functions include: the relative measurement REL, the HOLD function, and the automatic turning off that can also be disabled.
The instruments have IP67 protection degree.
INSTRUMENT TECHNICAL CHARACTERISTICS
( Length x Width x Height) 185x90x40mm
Weight 470g ( complete with batteries)
Materials ABS, rubber
Display 2x41D2 characters plus symbols
Visible area: 52x42mm
Operating temperature -5… 50° C
Stocking temperature -25… 65° C
Working relative humidity 0… 90% RH without condensation
Protection degree IP67
Batteries 4 1.5V type AA batteries
Autonomy 200 hours with 1800mAh alkaline batteries
Power absorbed with instrument off 20¼ A
Mains Output mains adapter 9Vdc / 250mA
Measuring unit ° C - ° F - Pa - hPa - mbar - bar - atm
mmHg - mmH2O - kgf/ cm2 - PSI - inchHg
Security of memorized data Unlimited, independently of battery charge conditions
Date and time Schedule in real time
Precision 1min/ month max departure
Measured values storage - model HD2124.2
Type 2000 pages of 16 samples each
Quantity 32, 000 pairs of samples
Storage interval 1s… 3600s ( 1hour)
Serial interface RS232C
Type RS232C electrically isolated
Baud rate Can be set from 1200 to 38400 baud
Data bit 8
Stop bit 1
Flow Control Xon/ Xoff
Serial cable length Max 15m
Immediate print interval 1s… 3600s ( 1hour)
USB interface - model HD2124.2
Type 1.1 - 2.0 electrically isolated
Input module for the probes 2 8-pole male DIN45326 connectors
Serial interface 8-pole MiniDin connector
USB interface - model HD2124.2 8-pole MiniDin connector
Mains adapter 2-pole connector ( positive at centre)
Measurement of temperature by Instrument
Pt100 measurement range -200… + 650° C
Resolution 0.1° C
Instrument accuracy ± 0.1° C
Drift after 1 year 0.1° C/ year