YSI Pro20 - Manual (Page 39)

35
Temperature values display Over or
Undr on run screen. 1) Sample temperature is less than -5º C
or more than +55 o C . Increase or
decrease the sample temperature to
bring within the allowable range.
2) Return system for service.
S P E C I F I C A T I O N S
Parameter Range Resolution Accuracy
-5 to 55 ºC * 0.1 ºC ± 0.3 ºC Temperature
23 to 113 °F 0.1 °F ± 0.6 ºF
0 to 200% air
saturation 1% or 0.1%, user
selectable ± 2% of the reading or
2% air saturation,
whichever is greater
200 to 500%
air saturation 1% or 0.1%, user
selectable ± 6% of the reading
0 to 20 mg/L 0.1 or 0.01 mg/L,
user selectable ±2% of the reading or
0.2 mg/L, whichever is
greater
Dissolved Oxygen
20 to 50 mg/L 0.1 or 0.01 mg/L,
user selectable ±6% of the reading
Barometer 400.0 to 999.9
mmHg** 0.1 mmHg ± 5 mmHg within 5
°C of calibration
temperature***
* Automatic Dissolved Oxygen Temperature Compensation Range is -5 to 45 ºC
**Available barometer units include: mmHg, inHg, mbars, psi, or KPa
***For operating temperatures below 10 °C or above 40 °C, the barometer must be
recalibrated to maintain accuracy specification.