Metrohm 827 pH lab Manual do Utilizador descarregar pdf (Página 16)

2.4 Mains connection

8 826/827 pH meter, Instructions for Use

Fig. 4: Connecting sensors

Connection for potentiometric electrodes

pH, ISE, redox or silver electrodes with built-in or separate

reference electrode; plug F

Connection for separate reference electrode

Connection for temperature sensor

Pt1000 or NTC, connected via two 2 mm banana plugs, re-

ducing adapters for 4 mm plug B may be necessary

(6.2103.180 / 6.2103.190). Please observe: The red plug must

be put in the socket "Temp." for shielding purposes!

2.4 Mains connection

The 827 pH lab has an external power supply providing 6 V (DC). This

is connected to 6 V mains connection

The following power supply units are available:

• 6.2161.010 power supply unit EU 230 V / 6 V DC

• 6.2161.020 power supply unit US 115 V/ 6 V DC

• 6.2161.030 power supply unit UK 230 V / 6 V DC

• 6.2161.040 power supply unit AUS 240 V / 6 V DC

Attention!

Please make sure that the power supply is always kept dry. Protect it

against direct liquid contact.

2.5 Switch on

Switch on the pH meter with the < > key. The instrument will start in

the last operating mode to have been used for measuring pH, tempera-

ture or potential.

During the switch-on process an instrument checking routine is carried

out automatically. If an error message is displayed here ('Err x') then

please contact your local Metrohm agency.

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Metrohm 827 pH lab Manual do Utilizador Página 16