- -
3
HD3405.2
1.
Connectors.
2.
Battery symbol: displays the battery charge level. The symbol does not appear when the ex-
ternal power supply is connected.
3.
CAL
key: it starts the probe the pH electrode calibration.
4.
REL
key: enables the relative measurement (displays the difference between the current
value and the logged value when the key is pressed). It is applied to the in mV and tempera-
ture measurement.
5.
LOG/DUMP LOG
key: during normal operation, starts and ends the saving of the data in
the internal memory; in the menu, starts the data transfer from the instrument's memory to
the PC.
6.
pH/mV
key: when pressed for at least one second, changes the main variable measurement
between pH and mV. When the Auto-HOLD function is enabled, slight pressure updates the
measurement.
7.
SERIAL/ERASE LOG
key: starts and ends data transfer to the serial/USB communication
port. In the menu, clears the data contained in the instrument's memory.
8.
°C/°F
key: when the probe is not connected, allows manual modification of the temperature.
When double pressed, changes the unit of measurement for the temperature from degrees
Celsius to Fahrenheit.
9.
Function indicators.
10.
Key
: in the menu, increases the current value.
11.
Line for symbols and comments.
12.
Main display line.
13.
ON-OFF/AUTO-OFF
key: turns the instrument on and off; when pressed together with the
ENTER key, disables the automatic turn off.
14.
MENU
key: allows access to and exit from the menu.
15.
ENTER
in the menu, confirms the current selection; when pressed together with the
ON/OFF key, disables the automatic turn off.
16.
ESC
key: In the menu, cancels the operation in progress without making changes.
17.
FUNC
key: during normal operation displays the maximum (MAX), the minimum (MIN)
and the average (AVG) of current measurements.
18.
pH electrode efficiency indicators.
19.
Key
: in the menu, decreases the current value.
20.
Secondary display line.
21.
External mains power supply connector input 12Vdc for
∅
5.5mm - 2.1mm connector.
22.
Socket for
∅
4 mm standard plug for the reference electrode pH/ISE.
23.
BNC connector for the pH/mV electrode.
24.
8-pole DIN45326 connector, input for Pt100 temperature probes with SICRAM module, 4
wire direct Pt100 probes, 2 wire Pt1000 probes.
25.
8-pole MiniDin connector for RS232C connection using cable HD2110CSNM, for USB 2.0
connection using cable HD2101/USB and for
S-print-BT
printer connection using cable
HD2110CSP.
