Metrohm Power Box (for 899 Coulometer) - Manual (Page 21)

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5 Technical specifications
Power Box
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￭ EN/IEC 61000-4-6
￭ EN/IEC 61000-4-11
￭ EN/IEC 61000-4-14
￭ EN/IEC 61000-4-28
5.4 Ambient temperature
Nominal function
range 0 - +40 °C
(at a maximum of 85% humidity)
Storage –20 - +60 °C
Transport –20 - +60 °C
5.5 Capacity
Maximum
capacity 4 Ah
Usable capacity 90%
Work with a 899
Coulometer: 12 h of continuous operation during standard titration (120 s of titra-
tion, 180 s of conditioning, 1200 µg of water).
Remarks After a typical titration operation lasting 8 h, the Power Box can be
charged for approximately 1 h. This can allow for another 8 h of oper-
ation. Afterwards, the Power Box must be charged for 14 h (full
charge).
5.6 Placement
Safety distance Minimum safety distance between the rear panel of the Power Box and
parts and devices that can generate sparks:
￭ 10 cm (in accordance with EN 50272-2)
An 899 Coulometer can be placed on top of the Power Box.