Dwyer Instruments KFD0 Specifications

4-3/8

[111.13]

3/16

[4.76]

[101.6]

2-7/8

[73.03]

2X 7/16 [11.11]

2X 4-1/4 [107.95]

4X Ø1/4 [Ø6.35]

2X 1/2 [12.7]

5-1/8

[130.18]

5-1/4

[133.35]

13/16

[20.64]

1-3/8

[34.93]

3/4 [19.05]

2X Ø7/8 [Ø22.23]

1/2

[12.7]

Model

4-37/64 [116.46]

4-3/8 [111.20]

25/32 [20.00]

KFD0

Galvanic Barrier

Loop Powered, Intrinsically Safe Isolators

The Model KFD0 Loop Powered, Galvanic Barrier provides complete isolation for communication with Dwyer areas. Galvanic barrier eliminates the need for a high integrity earth ground required when using shunt type diode type safety barriers. Unlike most other isolators, the Model KFD0 does not require external power and has a low current draw. The housing is designed to easily mount on most standard DIN rails.

Model KFD0-SCS-EX1.55

370

DWYER INSTRUMENTS, INC. | www.dwyer-inst.com

intrinsically-safe transmitters approved for use in hazardous

Approval

FM for Class I, Zone 1, Groups IIC, IIB, IIA; Class I, II, III, Div. 2, Groups A, B, C, D, F, G

Vo (V)

23.1

Io (mA)

38.2

Group

IIC (A, B) IIB (C) IIA (D, F, G)

Dwyer Series

HHT-IX

µF

0.042

0.267

0.5

2.5

SPECIFICATIONS Hazardous Area Input:

Signal range: 4 to 20 mA (linear transmission 1 to 22 mA); Available transmitter voltage: ≥ 16 V for supply voltage > 21 V.

Safe Area Output:

Signal range: 4 to 20 mA; Transmitter voltage: ≤ 30 VDC.

Response Time: ≤ 20 µs at 0, and ≤ 600 µs at 800 load. Maximum Power Dissipation: 150 mW @ 20 mA and V <24 V. Temperature Limits: -4 to 140°F (-20 to 60°C). Temperature Drift: ≤ 0.5 µA/°C. Weight: 4.2 oz (120 g). Agency Approvals: CE, FM.

Model KFD0-SCS-EX1.55, Loop powered galvanic barrier . . . . . . . . . .$484.00b

b Items are subject to Schedule B discounts.

ACCESSORY

A-360, Aluminum DIN Rail 1 m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .$8.00