Buchi KjelSampler K-377 Manual de usuario descargar pdf (Pagina 44)

5 Putting into operation

K-375/376/377 Operation Manual, Version B

5.2 Electrical connections

5.2.1 Connections of the K-375

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a Power connection K-375

b RS232 connection to K-376/K-377

c RS232 connection to external bal-

ance

d LAN connection

e USB connection for external printer

f USB connection for bar code reader

g Connectors for level sensors

h Fuses (2 x 10A)

i Connector for dosing unit (Acid)

j Connector for additional dosing unit (Base)

k Additional USB-ports

l Connectors for colorimetric sensor (Ind. and Pwr. Col.) or pH electrode

(Ind. only)

m Connectors for temperature sensor

Fig. 5.1: Electrical connections of the K-375

NOTICE

Risk of device damage by wrong voltage.

• Make sure that the voltage on the socket corresponds to the voltage given on the type plate

of the instrument.

• Always connect the device to an earthed socket. External connections and extension cables

must be provided with an earthed conductor lead (3-pole couplings, cable or plug equipment)

as the mains lead has a molded plug, thus avoiding risks due to inadvertent defective wiring.

• Make sure that no electric sparks form in the device or its surroundings as they might

damage the instrument.

On the K-375 instrument

• Connect the power cable to the power connection

• Connect the level sensors to the corresponding connectors g.

NOTE

Unlike the level sensors for the storage tanks of H

20, NaOH and H3BO3, the presence of the level

sensors for the waste containers has to be indicated within the software! (See section “Peripherals”

in chapter 6.9.1)

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Buchi KjelSampler K-377 Manual de usuario Pagina 44

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