مانیتورینگ PEPPERL+FUCHS WE77/Ex-SH-03

Technical data Power supply Terminals 17, 18 Nominal voltage AC: 207 V ... 264.5 V; 45 Hz ... 65 Hz / 99 V ... 126.5 V; 45 Hz ... 65 Hz Power consumption ≈ 3.5 VA

Input (Intrinsically safe) Terminals 7+, 8- Nominal data per DIN 19 234 or NAMUR, ≈ DC 8 V / ≈ 8 mA Input pulse length / Input pulse interval > 350 µs / > 350 µs

Certificate of Conformity Peak Values PTB Nr. Ex-81/2146X for additional international approvals see page 384 U0 / I0 / P0 DC 12.7 V / 20 mA / 63.5 mW

Allowable circuit values Ignition protection method, category [EEx ia] [EEx ib] Explosion group IIB / IIC IIB / IIC Max. external capacitance 1.1 µF / 0.415 µF 3.9 µF / 0.8 µF Max. external inductance 5 mH / 2 mH 290 mH / 76 mH

Entity Parameters FM No. 0Q 8A0.AX Terminals 1+, 3-; 2+, 3-; 4+, 6-; 5+, 6- Suitable for Div 2 installation/mounting No Voltage VOC 13.1 V Current ISC 19.9 mA Voltage Vt - Current It - Explosion group A&B C&E D, F&G Max. external capacitance (Ca) 1.2 µF 3.6 µF 9.6 µF Max. external inductance (La) 80.0 mH 300.0 mH 680.0 mH

Output (Not intrinsically safe) Output: Current output Terminals 12+, 13-; 14+, 15- Output current range / Load 0 mA ... 20 mA or 4 mA ... 20 mA / < 1000 Ohm Max. Current 22 mA Output: Auxiliary Transistor output, passive Terminals 10+, 11- Max. switching voltage DC 30 V Nominal current / Max. switching current 10 mA, short circuit protected / 16 mA Signal level: Logic 1 / Logic 0 (L+) -2.5 V / cut off output (leakage current < 10 µA) Analog output, test jack 0 mV ... 200 mV Internal resistance Ri ≈ 10 kOhm

Transfer characteristics Input frequency < 1.5 kHz Working range 0.001 Hz < fn < 999 Hz Pulse-duty factor preferably asymmetric Linearity fault < 1% of final value

Certificate PTB (Germany) Nr. Ex-81/2146X FM (USA) Nr. OQ BAO.AX ASEV (Switzerland) Nr. 90.102719X

Weight ≈ 400 g (≈ 14.1 oz) Ambient temperature -25 °C ... +60 °C (-13 °F ... 140 °F)