YSI 58 - Manual (Page 32)

APPENDIX A GENERAL SPECIFICATIONS
YSI 58 SPECIFICATIONS
Power: 4 D-size Alkaline Batteries (included)
Approximately 1000 hours operation from each new set of batteries.
Low battery indicator signal (LOBAT) appears automatically when approximately 50 hours
of battery life remain.
Water Resistance: With RECORDER OUT, BATT ELIM and STIRRER receptacles capped,
every case opening is splash resistant.
Operating Environment
Medium: fresh, sea, or polluted water and most other liquid solutions.
Temperature: 0 to +45 °C
Storage Temperature: 0 to +45 °C
System Performance Specifications:
Measurement Range Resolution Accuracy
Temperature -5 to +45 °C 0.1° C
± 0.3 °C, plus probe
interchangeability
Dissolved Oxygen 0 to 200 % Air Sat.
0 to 20.00 mg/L 0.1%
.01 mg/L +0.3% Air Saturation
0.03 mg/L
Temperature Compensation:
The mg/L modes are automatically temperature compensated to an accuracy of + 1% of the
dissolved oxygen reading between 5 and 45°C; and to an accuracy of +2% between 0 and 5.
°C. See Temperature Sensitivity in probe specifications.
Salinity Compensation:
Salinity Range: 0 to 40 parts per thousand
Accuracy: + 0.3% of reading + 1 digit
Mode to Mode Accuracy (mg/L to percent air saturation)
+ 0.5% of reading, + 2 least significant digits (in the 0.01 mg/L mode)
Recorder Output:
Voltage: 0 to 1 volt, full scale
Accuracy: + 0.4 % of full scale, + 1 least significant digit (in the 0.01 mg/L mode)
Minimum Load Impedance: 50 K OHM
YSI Incorporated YSI 58 DO Meter 28