Hach SC4500 Instrucciones Para El Usuario página 6

3.1 Electrostatic discharge (ESD) considerations
Potential Instrument Damage. Delicate internal electronic components can be damaged by static
electricity, resulting in degraded performance or eventual failure.
Refer to the steps in this procedure to prevent ESD damage to the instrument:
• Touch an earth-grounded metal surface such as the chassis of an instrument, a metal conduit or
pipe to discharge static electricity from the body.
• Avoid excessive movement. Transport static-sensitive components in anti-static containers or
packages.
• Wear a wrist strap connected by a wire to earth ground.
• Work in a static-safe area with anti-static floor pads and work bench pads.
3.2 Install the module
To install the module and connect the sensor, refer to the illustrated steps that follow and the
applicable wiring table:
• pH and ORP sensors with attached cables:
• pH and ORP sensors with removable cables:
Notes:
• Make sure that the controller is compatible with the pH/ORP module. Contact technical support.
• To keep the enclosure rating, make sure that all unused electrical access holes are sealed with an
access hole cover.
• To maintain the enclosure rating of the instrument, unused cable glands must be plugged.
• Connect the module to one of the two slots on the right side of controller. Refer to
controller has two analog module slots. The analog module slots are internally connected to the
sensor channel. Make sure that the analog module and the digital sensor are not connected to the
same channel.
Note: Make sure that only two sensors are installed in the controller. Although two analog module ports are
available, if a digital sensor and two modules are installed, only two of the three devices will be seen by the
controller.
• Turn the rotatory switch of the module to configure the module based on the applicable sensor.
Refer to Table 1.
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N O T I C E
Table 2
Table 3 and Table 4
Figure 2. The