Text version of the page

GearType Flow Meter VC

Explosion-Proof Design (ATEX) Function

•All volume counters are available in explosion-proofdesign according to ATEX.•The explosion-proof design consists of the volume counter•(intrinsically safe electrical apparatus) and the switchingamplifier K130 (associated electrical apparatus). The type of protection „intrinsic safety“ applies to this construction.•The volume counter is installed in the potentially explosive atmosphere.•The mounting of the amplifier K130 is carried out in the safe area. •Volume counter and switching amplifier are electrically connected to each other. The switching amplifier evaluates the sensor signals and convertsthem to square-wave signals.• Without switching amplifier, the volume counter must not be operated in the potentially explosive atmosphere.•Cable lengths of up to 400m are possible betweenvolume counter and switching amplifier.•LED’s for monitoring line breaks / short circuits, channel switching state and power supply are located on the switching amplifier. Safe area Potentially explosive atmosphere
brownwhiteChannel 1 Channel 2 24 Volt7, 8 and 9 jumpered shield

K130 VC

1112789 456123 123 10 green yellow0 Volt whitebrown yellowgreen PA

II(2)G [EExia]IICPTB 03 ATEX 2094 X II2GD EExiaIICT4PTB 03 ATEX 2249

Note: This graph is an example only. National laws for potentially explosive areas must be considered.

Technical Data of Switching Amplifier K-130/3-E-10

Power supply Supply voltage cl.7 (L+), cl.10 (L--)DC 24 Volt ±20 % Ripple content white Wss 2k ohm Signal level 0-signalinhibited output, residual current <10 uA Ambience conditions Minimum limiting temperature248 K (--25°C) Maximum limiting temperature333 K (+60°C) Mechanics Dimensions107.5 x 92 x 22 mm Connection possibilitycan be snapped on a 35 mm mounting channel DIN 46277Weightapprox. 150 g
KRACHTGmbH · Gewerbestr.20 · 58791 Werdohl, Germany · fon +49(0)2392/935-0 · fax +49(0)2392/935209 · mail info@kracht.eu · web www.kracht.eu 9