HD2178 - 7 - V2.3
HD2178.2
1. Input for thermocouple, standard miniature connector.
2. Input for probes, 8-pole DIN45326 connector.
3. External auxiliary power supply connector input.
4. Battery symbol: displays the battery charge level.
5. Function indicators.
6. Secondary display line.
7. HOLD/key: freezes the measurement during normal operation; in the menu, increases the
current value.
8. FUNC key: displays the maximum (MAX), the minimum (MIN) and the average (AVG) of
current measurements. When pressed together with the UNIT/UserCal key, starts the calibra-
tion procedure for the probe connected to the instrument.
9. REL/key: enables the relative measurement (displays the difference between the current
value and the logged value when the key is pressed); in the menu, decreases the current value.
10. SERIAL/ERASE LOG key: starts and ends data transfer to the serial communication port. In
the menu, clears the data contained in the instrument's memory.
11. 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.
12. Mini-USB type B connector for USB 2.0. For the connection to PC (with cable CP23).
13. MENU key: allows access to and exit from the menu.
14. ENTER key: in the menu, confirms the current selection.
15. UNIT/USER CAL key: during normal operation, selects the unit of measurement for the tem-
perature between °C, °F or °K; when pressed together with the FUNC key, starts the calibration
procedure for the probe connected to the instrument.
16. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed together with the
HOLD key, disables the automatic turn off.
17. MAX, MIN and AVG symbols.
18. Main display line.
19. Line for symbols and comments.
20. 8-pole MiniDin connector for RS232C. For the connection to PC (with cable HD2110CSNM or
C206) or printer (with cable HD2110CSNM).
