User Interface And Navigation - Hach 8000A Manuel D'utilisation

D A N G E R
Multiple hazards. Only qualified personnel must conduct the tasks
described in this section of the document.
Installation guidelines
Obey the suggestions and requirements below to install this instrument.
• Put the instrument next to the sensor.
• Do not put the instrument in an area where electronic noise,
mechanical vibration, liquid spills or leaks from other equipment are
possible.
• Do not use extension cords with the instrument.
• If several system components are line-powered, make sure that all
components are connected to the same supply circuit. The use of
separate circuits may increase system noise levels.
• Install the instrument in an area with convenient access for operation,
maintenance, testing, ventilation and the on/off switch.
• Connect all cables before power is applied to the system.
• Apply power only after all electrical and mechanical connections are
made.
Connect the instrument
1. If a direct connection, connect the control and signal cable to the
instrument (sensor) and the sensor unit. If the RPS-2 interface is
necessary, connect the control and signal cable to the instrument
(sensor) and the RPS-2.
2. Connect the control cable to the instrument (sampler) and the
sampler unit if used.
3. Connect the RS232 cable to the instrument (host) and the host
computer (COMn where n = the software designated
communications port), if this system is in use.
4. Connect the environmental transducers if in use. Make sure that a
4-20 mA analog transducer is installed and that the connector and
8 English
wiring are compatible. Connect to any of the transducer ports (1, 2 or
3).
5. Connect the alarm circuit if used.
6. Connect the remote control (Auxiliary) circuit, if used.
Connect AC power
Note: Do not turn on the instrument until all system components are connected
and the connections have been verified and the system is ready to use.
1. Make sure that the power cord has the correct plug for the location
where the instrument is used. If an alternate power cord is used, the
cord must also
1. have a rating applicable for the supply voltage
2. have at least a 10 A current capacity
3. meet or exceed local electrical code requirements
Note: A user-supplied adaptor may be necessary for some locations.
2. Connect the power cord supplied with the instrument to the power
connection on back of the instrument

User interface and navigation

A 24-key keypad and the display operate as the instrument user
interface. Figure 4 shows the keys grouped by function.
describes the functions of a key or key type.
(Figure 2 on page 6).
Table 1