Hach 5410001, Руководство пользователя

Страница: 19 / 30

Figure 14 SP-510 keypad
Table 3 Keypad description
Key Function Description
1 HARD LED The monitor found hardness in the water. The status indicator light is red.
2 SOFT LED The monitor is in operation and no hardness shows. The status indicator light
is green.
3 ALARM OFF Sets the alarm to off. When more cycles are necessary to examine the water,
set the alarm to off. The status indicator light is yellow.
4 HARD CAL Completes a hard calibration. Refer to Calibration on page 18. The status
indicator light is yellow.
5 ZERO CAL Completes a zero-point calibration. Refer to Calibration on page 18. The
status indicator light is yellow.
Section 5 Startup
5.1 Start the instrument
Note: Install the pressure plate correctly to prevent sample flow directly into the reagents. Refer to Install the pump
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.
5.2 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.
English 17