Maintenance - Hach AS950 Basic Installation And Maintenance

5.4.5 Connect a sensor
To connect a sensor (e.g., pH or flow sensor) to a sensor port, refer to
Figure 12 Connect a sensor
Section 6 Startup
6.1 Set the instrument to on
The refrigerator starts after a 5-minute delay when power is supplied to the sampler. The refrigerator
continues to operate when the controller is set to off or the power is removed from the controller.
Push the POWER key on the controller to set the controller to on.
To set the refrigerator to off, push the POWER key on the controller. Then, disconnect the power
cord on the AWRS.
6.2 Preparation for use
Install the analyzer bottles and stir bar. Refer to the operations manual for the startup procedure.
Section 7 Maintenance
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Electrocution hazard. Remove power from the instrument before doing maintenance or service
activities.
Fire hazard. This product contains a flammable refrigerant. Do not damage or puncture the
refrigeration circuit. Do not use a mechanical device or other procedure to increase the speed of a
defrost cycle.
D A N G E R
D A N G E R
W A R N I N G
Figure 12.
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