HT instruments HT4000 - Manual (Page 5)

HT4000
EN - 4
4. OPERATING INSTRUCTIONS
4.1. INSTRUMENT DESCRIPTION
LEGEND:
1. External probe
terminal
2. Internal sensor for
atmospheric pressure
measurement
3. LCD display
4. HOLD/RECALL key
5. MAX MIN key
6.
S/ key
7. / UNIT key
8. ESC/REC key
9.
T/ key
10. / SET key
11. Sensor fan
12. Sensor for
temperature/humidity
measurement
13. Probe handle
14. Battery compartment
15. Battery compartment
cover
16. External probe input
terminal
Fig. 1: Instrument description
4.2. DISPLAY DESCRIPTION
LEGEND:
1. Low battery indication
2. Indication of active
Auto Power OFF
3. Main display
measuring unit
4. Secondary display
measuring unit
5. Secondary display
6. Main display
7. Symbols for internal
functions
Fig. 2: Display description