INTRODUCTION
MS 0257 is a water-resistant, dissolved oxygen meter that measures up to 300% saturation or 45 ppm (mg/L) with temperature compensation and automatic calibration. It has been developed for DO and temperature measurement in water, wastewater, and applications such as fish farming.
This instrument also allows altitude compensation up to 4000 m and the ppm and % saturation are both compensated for changes in solubility of oxygen in water and for permeability of the membrane as well as the temperature effect.
The included polarographic probe features built-in temperature compensation and removable protective membrane cover.
| Specification | ||
Range O2 |
: |
0.00 to 45.00 mg/L (ppm) |
Range % Saturation O2 |
: |
0.0 to 300.0% |
| Range Temperature | : |
0.0 to 50.0°C |
| Resolution O2 | : |
0.01 mg/L (ppm) |
| Resolution % Saturation O2 | : |
0.1% |
| Resolution Temperature | : |
0.1°C |
| Accuracy O2 | : |
±1.5% FS |
| Accuracy % Saturation O2 | : |
±1.5% FS |
| Accuracy Temperature | : |
±0.2°C (excluding probe error) |
| Dissolved Oxygen Calibration | : |
one or two points at 0%(zero solution) and 100% (in air) |
| Temperature Compensation | : |
automatic, 0 to 50°C (32 to 122°F) |
| Altitude Compensation | : |
0 to 4000 m (resolution 100 m) |
| Salinity Compensation | : |
0 to 80 g/L (ppt) (resolution 1g/L) |
| Probe | : |
MS 87518/4F polarographic DO probe, internal temperature sensor, DIN connector and 4 m cable (included) |
| Battery Type / Life | : |
1.5V AAA (3) / approx 200 hours of continuous use without backlight (50 hours with backlight on) |
| Environment | : |
0 to 50°C (32 to 122°F); RH max 95% |
| Dimensions | : |
185 x 72 x 36 mm (7.3 x 2.8 x 1.4") |
| Weight | : |
300 g (10.6 oz) |
