Metrohm 797 VA Computrace - Manual (Page 93)

4.1 Technical data
797 VA Computrace / Hardware-Manual 8.797.8001EN
85
Dummy Cell
Use Checking of the 797 VA Computrace
Determination of the signal-to-noise ratio
Connections AE auxiliary electrode
RE reference electrode
WE-L working electrode linear mode
(RC element)
WE-D working electrode differential mode
(peak/wave)
Inert gas (in general nitrogen N
2
)
Use Operation of MME de-aeration of sample solution (Not
needed for electroplating bath analysis)
Purity min. 5.0 (99.999 %)
Required pressure p = 1 ± 0.2 bar (this gas pressure results in a gas flow
rate of ca. 20 L/h)
Dosing devices (Option)
Type 800 Dosino (2.800.0010) + 807 Dosing unit
(6.3032.XXX),
700 Dosino (2.700.0020) + 807 Dosing unit
(6.3032.XXX),
685 Dosimat (2.685.0010) + 806 Exchange unit
(6.3026.XXX) + Cable (6.2134.030)
805 Dosimat (2.805.0010) + 806 Exchange unit
(6.3026.XXX)
connect via MSB 1…3 (or to a 846 Dosing Interface)
Number 1...3 (with a 846 Dosing Interface, 4 additional can be
connected)
Plug Mini-DIN
Manual operation Dispensing, filling, adjustment of feed and filling rate
MSB connections (MSB = Metrohm Serial Bus)
Dosing devices Connection of max. 3 Dosing devices (MSB1 to MSB3)
to 797 VA Computrace. With a 846 Dosing Interface,
four additional Dosing devices can be connected.
USB connections
USB Standard USB1.1
Connection computer With cable 6.2151.020
USB ports 2 USB downstream Ports (type A sockets), each
500 mA, for the connection of peripherals as printer,…
Remote connections
Remote Interface D-Sub, 25 pin remote interface to control sample
changer and rinsing equipment.