Thermo Fisher Scientific Alpha TDS 190 (In the process of updating the brand guideline & product image) - Manual (Page 6)

3
3 OVERVIEW
3.1 Front Panel
The front panel consists of a 4-digit LED display, 8 LED annunciators and 4 keys.
Annunciators
1. REL 1 Displayed when Relay 1 is activated
2. REL 2 Displayed when Relay 2 is activated
3. MEAS Displayed in measurement mode
4. CAL Displayed in calibration mode
5. SETUP Displayed in setup mode
6. ppm Unit of the displayed parameter (parts per million)
7. o C Unit of the displayed parameter (temperature)
8. ppt Unit of the displayed parameter (parts per thousand)
Keys
9. MODE Use to toggle between Measurement modes
(TDS and temperature).
10. CAL / ENTER Use to enter Calibration mode.
Use also to enter into levels of the Setup mode
and to confirm changes made.
11. SP1 / ▲
SP2 / ▼ Use to enter Set Point 1 (SP1) or Set Point 2
(SP2) adjustment mode.
Use as increment or decrement keys during
Calibration and Setup modes.
Use both keys together in Calibration and Setup
modes to escape to Measurement mode.
12.14-segment display
CAL
ENTER
MODE
TDS 190 Series
ppm ppt
SP1
SP2
C