Hach-Lange SD900 Refrigerated Sampler, SD900 AWRS Basic User Manual - Manual (Page 15)

Figure 10 Pump on and off times at 50 °C (122 ºF)
1 Time (in minutes) that the pump must stay off 3 Example: if the pump is on continuously for
5 minutes, the pump must stay off for 15 minutes.
2 Time (in minutes) that the pump is on continuously
User interface and navigation
The controller keypad is shown in Figure 11 . Use the MENU key to set up sampling programs,
configure the controller settings or complete the diagnostic tests. Use the arrows, ENTER and BACK
keys to scroll through the menu, make selections and enter values. Look for arrows on the bottom or
side of the display screen to know when more options are available.
Figure 11 Controller keypad
1 POWER 5 MENU 9 STATUS
2 VOLUME CALIBRATION 6 ENTER 10 RUN/HALT PROGRAM
3 STOP 7 BACK 11 MANUAL OPERATION
4 LED 8 ARROW KEYS
English 15