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Sistema de alarma por rebalse Capacitivo para medio corrosivo

CapFox® ENT 20 Ex The CapFox® ENT 20 Ex isolating amplifier consists of a switching amplifier and a voltage-free output relay. The control circuit is intrinsically safe (EEx ia II C). CNS 20 and CNS 20 Ex probes can be connected.
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SISTEMA DE ALARMA POR REBALSE CAPACITIVO PARA MEDIO CORROSIVO

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APLICACION MODELO TECNOLOGIA MARCA
Nivel CapFox® ENT 20 - Afriso
FUNCION (Sistema) CODIGO SECCION
Sistema de alarma por rebalse Capacitivo para medio corrosivo. 02-5002 02

Capacitance overfill alarm systems according to WHG for corrosive media.

Application

The CNS 20 capacitance probes for electrically conducting and nonconducting media can be used in conjunction with the CapFox® ENT 20 Ex isolating amplifier as an overfill alarm system according to WHG. Technical Approval of the German Institute for Building Technology: Z-65.13-156. The PTFE partly insulated probe renders the unit particularly suitable for use with corrosive liquids. The system can also be used in hazardous areas zone 0 in conjunction with the CNS 20 Ex high-temperature probe.

Description

CapFox® ENT 20 Ex The CapFox® ENT 20 Ex isolating amplifier consists of a switching amplifier and a voltage-free output relay. The control circuit is intrinsically safe (EEx ia II C). CNS 20 and CNS 20 Ex probes can be connected. A green LED indicates mains "on", a yellow LED indicates that the relay has responded. In the case of a cable break, the red LED lights up. In the case of all error messages, the output relay is de-energised. The isolating amplifier must be installed outside of the hazardous area.

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Technical specifications ENT 20 Ex

Operating temperature range
Ambient: -20 °C/+60 °C

Supply voltage
ENT 20 Ex-230 AC 230 V
ENT 20-Ex-24 DC 24 V

Power consumption
ENT 20 Ex-230 approx. 1.5 W
ENT 20-Ex-24 approx. 1.8 W

Probe circuit
According to NAMUR EN 60947

Relay output
Relay contact: 1 voltage-free changeover contact
Contact rating: AC 250 V 8 A DC 24 V 4 A

Visual indication
Green LED mains "on"
Yellow LED probe (wetted)
Red LED alarm condition

Housing
Standard DIN-rail housing W x H x D: 40 x 70 x 110 mm

Protection
IP 20 (EN 60529)

Approval
Overfill alarm system according to WHG Technical Approval of the German Institute for Building Technology: Z-65.13-156 TÜV 01 ATEX 1660 (EEx ia II C)








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