To Next PageTo Next PageWhat to do if the signal is not stable on Hach Analytical Instruments?
If the signal from your Hach Analytical Instruments is not stable, wait for stability to be reached and check the N2 gas flow rate. Also, check for the presence of liquid on the LDO membrane. If liquid is found in the flow meter, dry it by injecting 20 mL of EtOH followed by 5 minutes of N2 gas.
Why is the response time too long on Hach Lange ORBISPHERE 3100 Analytical Instruments?
Several factors can cause a long response time. Try the following: * Use the tubes supplied with the instrument, as they are made of low O2 permeable material. * Check the flow rate and connections to ensure they are correct. * If sampling a package, purge the piercer with N2 gas before sampling. * Perform the monthly cleaning procedure.
What to do if I see measurement spiking on Hach Analytical Instruments?
If you observe measurement spiking, ensure all tubing is tightly and correctly connected to the sample inlet and outlet connections. Also, remove any residual air bubbles from the sample line by turning the sample inlet/outlet valve to the PURGE position for 5 seconds.
What to do if the signal is not in range on Hach Analytical Instruments?
If the signal is not in range and the calibration value is very different from the last calibration value, completely open the sample flow adjustment valve. Also, the calibration gas may have too much oxygen; use a quality 5.0 N2 or CO2 bottle. Check for oxygen leaks between the reference bottle and the instrument by increasing the gas flow rate and checking for a decrease in partial pressure (mbar).
How to resolve degassing in the flow meter of Hach Lange ORBISPHERE 3100 Analytical Instruments?
To resolve degassing in the flow meter, adjust the flow rate to between 150 and 200 mL/min. Also, verify that the filter (if you are using one) is not blocked.
What to do if silver bead does not move freely in the sample on Hach Lange ORBISPHERE 3100 Analytical Instruments?
If the silver bead does not move freely in the sample, perform the monthly cleaning procedure.
How to resolve channel out error on Hach Lange ORBISPHERE 3100 Analytical Instruments?
To resolve a channel out error, change the LDO spot. In other cases, contact Hach Lange service.
What to do if the display appears frozen on Hach Lange ORBISPHERE 3100 Analytical Instruments?
If the display appears frozen with no active cursor, check the measurement mode to see if it is set to continuous or sample.
General| Temperature Range | -5 °C to +50 °C (23 °F to 122 °F) |
|---|---|
| Pressure Range | 0 to 10 bar absolute |
| Communication Interface | RS232 or RS485 |
| Protection | IP65 |
| Output | 4-20 mA |
| Measurement Parameters | Dissolved Oxygen, Ozone, Hydrogen Peroxide |
