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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