v_shortname: Speed monitor, device suitable for installation in device protection level: Gc, device suitable for installation in division: Div. 2, safety integrity level: SIL 2, signal type: binary input, number of channels: 1, field side signal: frequency, field side device: NAMUR sensor, potential-free contact, control side type: 2x relay (changeover), transmission direction: to the control, functions: start-up bridging, speed monitoring, limit value relay, line fault monitoring, supply: 24 V DC, supply connection: terminals or power rail, connection type: screw terminals, housing width: 40 mm, ambient temperature: -20 ... 60 °C (-4 ... 140 °F)