Stratos Multi E461N
194
13.9 Diagnostics and Statistics
Diagnostic functions
Calibration data
Calibration record
Device self-test
Automatic memory test (RAM, FLASH, EEPROM)
Display test
Display of all colors
Keypad test
Check of key functions
Sensocheck
Delay: approx. 30 s
pH
Automatic monitoring of glass and reference electrode (can be switched off )
Cond
Polarization detection and monitoring of cable capacitance
CondI
Monitoring of primary and secondary coils and lines for open circuit and of primary coil
and lines for short circuit
Oxygen
With amperometric sensors only
Monitoring of membrane and electrolyte and the sensor wires for short circuits or open
circuits (can be switched off )
Sensoface
Provides information on the sensor condition (can be switched off; happy, neutral, sad smileys). Evaluation criteria
Sensocheck and Sensoface, p. 172
pH
Evaluation of zero/slope, response, calibration interval, Sensocheck, wear
Cond
Evaluation of Sensocheck
CondI
Evaluation of zero point, cell factor, installation factor, Sensocheck
Oxygen
Evaluation of zero point/slope, response time, calibration interval, Sensocheck, and
sensor wear for digital sensors
Sensor monitor
Display of direct sensor measured values:
pH
pH/voltage/temperature
Cond
Resistance/temperature
CondI
Resistance/temperature
Oxygen
Sensor current/temperature
Measurement recorder TAN option FW-E103
Measurement Recorder (FW-E103), p. 243
4-channel measurement recorder with marking of events (failure, maintenance required, function check, limit values)
Storage capacity
100 entries in device memory, at least 20,000 entries in conjunction with Data Card
Recording
Process variables and span freely adjustable
Type of recording
Current value
Time base
10 s ... 10 h
Logbook
Recording of function activations, appearance and disappearance of warning and failure messages, with date and
time, 100 entries with date and time in device memory, viewable on display
TAN option
FW-E104
At least 20,000 entries in conjunction with Data Card