Description
Hanna® Laboratory Research Grade Benchtop Dissolved Oxygen and BOD Meter with Polarographic Probe, HI5421-01
Features:
- Highly customizable user interface—includes showing measurements in various modes with or without GLP information, real-time graphing, logging data, adjustable calibration stability criteria (fast, moderate, and accurate), programmable alarm limits (inside or outside)
- Color graphic LCD—on-screen help, graphic and custom color configurations, real-time graphing, virtual keys for intuitive user interface
- Built in barometer—provides pressure compensation for all DO measurements via built-in pressure transducer (can be calibrate to a single point)
- Capacitive touch—sensitive touch buttons for accurate keystrokes while navigating menus and screens; four dedicated keys for routine operations including calibration and switching modes plus four virtual keys that change based on use; no worry of clogged buttons
- BOD, OUR, and Sour Measurement modes—Biological Oxygen Demand, Oxygen Uptake Rate and Specific Oxygen Uptake Rate can be measured by simply entering values and taking readings at appropriate times while meter automatically claculates the values
- Choice of calibration—automatic standard recognition available for two points at 0% to 100% saturations or 0 mg/L to 8.26 mg/L; user standard option available for user defined value
- GLP Data—user can view calibration data and calibration expiration at touch of a key; includes date, time, and calibration points
- Data logging—automatic, manual, and auto-hold logging (up to 100 lots with 50,000 records maximum/lot, up to 100,000 data points) ; automatic logging features option to save data according to sampling period and interval
- Data transfer—transfer data to PC via USB cable and HI92000 software (sold separately)
- Contextual help—dedicated Help key provides clear tutorial messages and on-screen directions to guide users through set-up and calibration; information displayed relative to setting or option being viewed
- Warranty—2 years for meter; 6 months for probe
Supplied with:
- HI76483 DO Probe
- HI76404W electrode holder
- HI7041S electrolyte solution (30 mL)
- HI76483A DO membrane caps (2)
- 12 VDC adapter
- Instrument quality certificate
- Instruction manual
Specifications:
| DO | Range | 0.00 to 90.00 ppm (mg/L); 0.0 to 600.0% saturation |
| Resolution | 0.01 ppm; 0.1% saturation | |
| Accuracy | ± 1.5% of reading ±1 digit | |
| Calibration | Automatic using single or two-point calibration; user calibration single point | |
| BarometricPressure | Range | 450 to 850 mm Hg; 600 to 1133 mBar; 60 to 133 KPa; 17 to 33 in HG; 8.7 to 16.40 psi; 592 to 1.118 atm |
| Resolution | 1 mm Hg | |
| Accuracy | ± 3 mm Hg + 1 least significant digit | |
| Temperature | Range | - 20.0 to 120 °C**; - 4.0 to 248 °F**; 253.15 to 393.1 K** |
| Resolution | 0.1 °C; 0.1 °F; 0.1 K | |
| Accuracy | ± 0.2 °C; ± 0.4 °F; ± 0.2 K (without probe) | |
| Additional Specifications | Measurement modes | direct DO; BOD (biochemical oxygen demand); OUR (oxygen uptake rate); SOUR (specific oxygen uptake rate) |
| Temperature compensation | 0.0 to 50.0 °C; 32.0 to 122.0 °F; 237.1 to 323.15 K | |
| Salinity compensation | 0 to 45 g/L; 0-42 psu; 0-70% | |
| Barometric pressure calibration | Single point calibration | |
| Probe | HI76483 thin body, polarographic dissolved oxygen probe with internal temperaure sensor and 1 m (3.3') cable (included) | |
| Logging samples records | 100,000 records storage, 100 lots each for automatic and manual logs; maximum 50,000 records/lot for automatic logging | |
| Interval logging | Fourteen presets selectable between 1 second and max log time of 180 minutes | |
| Logging type | Manual, AutoHOLD, automatic | |
| Alarm (DO, BOD, OUR, SOUR) | Inside and outside limits | |
| PC connection | opto-isolated USB | |
| Display | Color graphic LCD with 240 x 340 pixels | |
| Power supply | 12 VDC adapter (included) | |
| Dimensions | 160 x 231 x 94 mm (6.3 x 9.1 x 3.7") | |
| Weight | 1.2 kg (2.6 lbs.) |
**Reduced to actual probe limits

