What does it mean if HARD LED is flashing on Hach SP-510 Measuring Instruments?
If the HARD LED is flashing on your Hach Measuring Instruments, contact technical support. This indicates the instrument couldn't save the calibration information.
What happens if no stir bar is installed in Hach Measuring Instruments?
If no stir bar is installed or more than one stir bar is installed in your Hach Measuring Instruments: * Make sure that a stir bar is installed. * Use a paper clip to retrieve the stir bar from the colorimeter and make sure that multiple stir bars are not installed. * If the stir bar does not operate, mix the sample manually after the reagents have been added. Use the end of a wooden Q-tip and mix the reagents approximately for 10 seconds. If the instrument gets a reading, the mixing is not sufficient. Replace the stir coil. Additional information is available on the manufacturer's website.
Why is the reading continually high on Hach SP-510 Measuring Instruments?
If the reading is continually high and the HARD LED is on for your Hach Measuring Instruments, refer to Troubleshooting for a hard reading on page 22. If the problem continues, cycle power, examine all power connections and fuses, replace the circuit board, or contact technical support.
Why is the SOFT LED flashing continuously on Hach SP-510?
If the SOFT LED is flashing continuously for more than 5 minutes after powering on your Hach Measuring Instruments, let the instrument complete the cycle. Ensure the motor is operating. Power off and then on, waiting 5 minutes. If the issue persists, contact technical support, as it could indicate a blockage in the optical path or a faulty optical switch.
What to do if Hach Measuring Instruments does not operate correctly?
If your Hach Measuring Instruments don't operate correctly, pinch the sample inlet line to stop the sample flow. The next cycle should read soft. If it doesn't, check if the LED shows an orange light and inspect/clean the photocell if needed. After this cycle, the instrument should read hard again.
What to do if Hach Monitor reading is continually high (hard)?
If the Hach Monitor reading is continually high, consider these possible causes: * The stir bar may not be installed: Install the stir bar. * The LED may not be plugged in: Check through the view port for orange light. * The sample may not be flowing: Turn the sample on, check the sample connections, and check the sample conditioning filter for blockage. * You may be out of reagents: Replace the reagents.
What to do if SOFT LED is off but pump motor operates on Hach SP-510?
If the SOFT LED light is not on, but the pump motor does operate on your Hach Measuring Instruments, the problem might be with the power supply. Replace the main circuit board and contact technical support for assistance.
Why Hach Measuring Instruments not receiving buffer or indicator solution?
If your Hach Measuring Instruments aren't receiving buffer or indicator solution, remove the two reagent lines from the Y connector. Expect only one drop of reagent per cycle. If no reagent comes out, inspect the pressure plate, ensuring the pinch block isn't overtightened and the reagent lines aren't pinched. Also, check the back of the pinch block for grooves. Replace the pinch block if necessary.
What to do if SOFT LED is on but pump motor doesn't operate on Hach SP-510?
If the SOFT LED light is on but the pump motor isn't running on your Hach Measuring Instruments, check if the line voltage is within specification. Also, ensure the line voltage selector switch is set to the correct voltage. Verify the motor cable is properly connected. If the motor still doesn't operate, it may need replacement.
How to fix a pinched sample line in the pinch block of Hach SP-510?
If the sample line is pinched off in the pinch block of your Hach Measuring Instruments, follow these steps: * Pull the sample line from the colorimeter, being aware that water in the line may leak out. Examine and adjust the flow rate to 200 mL/minute while the line is pinched, ensuring a steady water stream. * Make sure the pressure plate of the pinch block isn't overtightened. * Inspect the back of the pinch blocks for grooves.
Details about the physical and operational characteristics of the instrument.
Instructions for mounting the instrument on an indoor wall away from direct sunlight.
Guidelines for making electrical connections using conduit, emphasizing safety and enclosure rating.
Detailed steps for performing a two-point calibration of the instrument.
Recommended schedule for routine maintenance tasks for the SP-510 instrument.
Procedure for replacing fuses, emphasizing using correct type and rating.
Steps to diagnose and resolve issues when the instrument consistently measures high hardness.
General| Parameter | pH, ORP, Conductivity, TDS, Salinity, Temperature |
|---|---|
| pH Resolution | 0.01 pH |
| Battery Life | Approximately 200 hours |
| Display | LCD with backlight |
| IP Rating | IP67 |
| pH Range | 0 to 14 pH |
| Temperature Range | -5 to 105°C |
| Temperature Resolution | 0.1 °C |
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