HT instruments HT157 - Manual (Page 8)

HT155 - HT157
EN - 6
4. OPERATING INSTRUCTIONS
4.1. INSTRUMENT DESCRIPTION
4.1.1. FRONT PANEL
LEGEND:
1. Microphone
2. ON key
3. OFF key
4. CANCEL key
5. Key
to turn on the backlight
6. LCD display
7. ENTER key
8. EXIT key
9. OUTPUT key
10. START/PAUSE key
11. Arrow key
for programming
12. Arrow key for programming
13. Arrow key for programming
14. Arrow key for programming
15. SETUP key for programming
Fig. 1: Description of the instrument’s front panel
4.1.2. OUTPUT INTERFACE
LEGEND:
1. AC analogue output
2. RS-232 interface (not active)
3. Mini USB interface
Fig. 2: Description of the output interface