Hach-Lange SI794 D tr User Manual - Manual (Page 93)

Cleaning function * Relay contact, floating,
for controlling a simple rinsing system
Contact ratings AC < 250 V / < 3 A / < 750 VA
DC < 30 V / < 3 A / < 90 W
Contact response * N/C or N/O
Interval * 000.0 ... 999.9 h
(000.0 h = cleaning function switched off)
Rinse duration * 0000 ... 1999 s
Display LC display, 7-segment with icons
Main display Character height 17 mm, unit symbols 10 mm
Secondary display Character height 10 mm, unit symbols 7 mm
Sensoface 3 status indicators (friendly, neutral, sad face)
Mode indication 5 mode indicators
"meas", "cal", "alarm", "cleaning", "config"
18 further icons for configuration and messages
Alarm indication Red alarm LED in case of alarm or HOLD (user defined)
Keypad 5 keys
Service functions
Current source Current specifiable for output 1 and 2 (00.00 to 22.00 mA)
Manual controller Controller output entered directly (start of control process)
Device self-test Automatic memory test (RAM, FLASH, EEPROM)
Display test Display of all segments
Last Error Display of last error occurred
Sensor monitor Display of direct, uncorrected sensor signal
Relay test Manual control of the four switching contacts
Parameter sets Two selectable parameter sets for different applications
Data retention Parameters and calibration data > 10 years (EEPROM)
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