Hach-Lange SI794 D User Manual - Manual (Page 87)

Type B sensor (Hamilton Oxygold)
Thermometer and Sensoface:
Temperature out of concentration or saturation range
Slope Zero point
Response
time
Cal timer
Range 200 ... 550 nA -2 ... +2 nA max. 720 sec
> 250 ... < 500 nA > - 0.5 ... < 0.5 nA < 300 s < 80 %
225 ... 250 nA
or
500 ... 525 nA
-1.0 ... -0.5 nA
or
+0.5 ... +1.0 nA
300 ... 600 s 80 ... ≤ 100 %
< 225 nA or
> 525 nA
< -1.0 nA or
> +1.0 nA
> 600 sec Timer expired
Sensocheck
Continuously monitors the sensor and leads for short circuits or
open circuits. Critical values make the Sensoface “sad” and the
corresponding icon blinks:
The Sensocheck message is also output as error message Err 33.
The alarm contact is active, the red LED is lit, output current 1 is
set to 22 mA (when configured correspondingly). Sensocheck
can be switched off during configuration (then Sensoface is also
disabled).
Exception: After a calibration a smiley is always displayed for
confirmation.
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