Serviceline
Serviceline Industrial Sensors
Serviceline Explosion Protection

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This product has been replaced.Go to replacement product KFD2-STC4-Ex1
Not available for purchase

SMART Transmitter Power Supplies KFD2-STC1-Ex1

KFD2-STC1-Ex1
  • 1-channel
  • Input EEx ia IIC; Uo = 25.5 V
  • 24 V DC nominal supply voltage
  • SMART capable up to 12 kHz (-1 dB)
  • EMC acc. to NAMUR NE 21

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of KFD2-STC1-Ex1

Product Description
Output 4 ... 20 mA
Supply
ConnectionPower Rail or terminals 7+, 8-
Rated voltage20 ... 35 V DC
Ripplewithin the supply tolerance
Power dissipation0.8 W
Power consumptionmax. 1.2 W
Input
Connectionterminals 1+, 3-
Input signal4 ... 20 mA
Available voltageat 20 mA: approx. 16.5 V at 200 Ohm Output load
dependent on output load: U = 19.65 - (16.5 x 10-3 x RB); with RB = output load in Ohm
Output
Connectionterminals 8-, 9+, 10-, 11+
Output signal4 ... 20 mA , max. load 500 Ohm, with HART ≥ 230 Ohm
Ripplemax. 75 µA ss
Transfer characteristics
Deviation≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
Frequency rangefield side into the control side: bandwidth with 1 mApp signal 0 ... 40 kHz (-1 dB);
0 ... 100 kHz (-6 dB)
safe area to hazardous area: band width with 1 VSS signal 0 ... 40 kHz (-1 dB);
0 ... 100 kHz (-6 dB)
Rise time40 µs
De-energized delay40 µs
Directive conformity
Electromagnetic compatibilityStandards
Directive 89/336/EECEN 61326, EN 50081-2, NE 21
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Massapprox. 150 g
Data for application in connection with hazardous areas
EC-Type Examination CertificateBAS 00 ATEX 7127 , for additional certificates see www.pepperl-fuchs.com
Group, category, type of protectionEx-Hexagon II (1)GD [EEx ia] IIC (Tamb = -20 °C to +60 °C) [circuit(s) in zone 0/1/2]
Directive conformityStandards
Directive 94/9/ECEN 50014, EN 50020

Approvals+Certificates: KFD2-STC1-Ex1

CertificatesCertificate No.File TypeFile Size
Canada UL cULE106378 cUL (QUZW7)LINK---
Russia VNIIMS Pattern ApprovalDE.C.34.004.A No.56757PDF976 KB
USA FMFM Listed (Approval Guide)LINK---
USA ULE106378 UL (QUZW)LINK---
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