Manual

HT2055
EN - 6
4 DESCRIPTION OF PARTS
4.1 HT2055S STATION UNIT DESCRIPTION
Fig. 1: HT2055S unit description
CAPTION:
1 Protection fuse on mains (see § 11.1)
2 Switch for supply voltage selection (110/230V)
3 ON/OFF key to switch the instrument ON or OFF
4 Input connector for mains cord
5 RS-232 galvanic port for connection to HT2055M unit
6 C1/H terminal for connection of auxiliary earth probe
7 P1/S for connection of auxiliary voltage probe
8 P2/ES for connection of auxiliary current probe
9 C2/E for connection of auxiliary earth probe
10 HELP key
11 – 12
and keys for function selection and parameter settings
13 LCD display with backlit
14 Key for adjust contrast of display
15 MEM key for access to internal memory (see § 8)
16 ESC key to return at previous screen
17 , , ,  arrow keys and TEST key to activation measurements
4.1.1 Modify of supply voltage for HT2055S unit
1. Open the fuses compartment (see Fig. 1 – Part 1) with a screwdriver
2. Extract the red switch (see Fig. 1 – Part 2) from the fuses compartment
3. Rotate the switch in way to correctly read the “115V” or “230V” indication
correspondent to the desired supply voltage
4. Restore the switch in the fuses compartment and close it