Startup; Start The Instrument; Prime The Reagents (Optional); Calibration - Hach SP-510 User Manual

Key Function Description
4 HARD CAL Completes a hard calibration. Refer to
yellow.
5 ZERO CAL Completes a zero-point calibration. Refer to
light is yellow.

Startup

Start the instrument

Note: Install the pressure plate correctly to prevent sample flow directly into the reagents. Refer to
valve pressure plate on page 11.
1. Open the supply valve to the instrument.
2. Let the pressure in the tubes stabilize.
Note: If leaks occur under pressure, examine all connections. Secure connections until all leaks have stopped.
3. Set the power to on.
4. Operate the instrument for approximately 2 hours with the sample and reagents.
Note: The sample cell will have bubbles on the surface until it is fully wetted. The bubbles can cause irregular
readings until the sample flow stabilizes.

Prime the reagents (optional)

Prime the reagents to decrease the start up time to 15 minutes.
1. Set the sample flow to the instrument to off.
2. Disconnect the reagent feed line after the "Y" fitting at the colorimeter.
3. Connect a syringe to the tubing that comes from the "Y" fitting.
4. Loosen the two screws on the pump pinch plate so that the reagents can be pulled through the
reagent lines.
5. Use the syringe to remove the air and fill the lines with reagent.
6. Tighten the screws on the pump pinch plate. Do not overtighten.
7. Remove the syringe from the tubing and connect the fitting on the colorimeter.

Calibration

Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.

Complete a 2-point calibration

Complete a calibration after reagent installation or when an optical system component is replaced.
The standardization procedure makes the sample first hard, then soft.
1. Remove the plug from the top port of the colorimeter. Refer to
2. Push HARD CAL. The hard cal LED is on continuously.
Table 3 Keypad description (continued)
C A U T I O N
Calibration on page 17. The status indicator light is
Calibration on page 17. The status indicator
Figure 13
Install the pump
on page 16.
English 17