Tyco F3200 Benutzerhandbuch

F3200 Installation & Programming Manual

Document No: LT0122

Applications

Page 9-30

5 July 2001

Issue 2.7

When all the detectors on the IS circuit will generate a short circuit alarm condition it is

possible to use the lower-cost, 4-terminal isolating repeater without a ZAU401.  This is

shown in Figure 9.4.3.4.

The following 4-terminal isolating repeaters can be used.  (Note that dual channel repeaters
have two separate repeaters, and can connect two circuits to the panel).

Pepperl & Fuchs

KHD0-ICS/Ex 1.51 (single channel)

Pepperl & Fuchs

KHD0-ICS/Ex 2.51 (dual channel)

Pepperl & Fuchs

KFD0-CS-Ex 1.51P (single channel)

Pepperl & Fuchs

KFD0-CS-Ex 2.51P (dual channel)

Measurement Technology Ltd

MTL5061 (dual channel)

 

FIG 9.4.3.4

SHORT-CIRCUITING DETECTORS WITH 4 TERMINAL REPEATER

The required EOL resistance is lower than the standard 2k7.  Two methods for obtaining the

correct EOL value are:

1. 

Place a 22K 5% resistor in parallel with the supplied 2k7 EOL.  This achieves the 

required value.

2. 

Or just use a 2k2 5% resistor as the EOL.

The circuit should be programmed as Mode 1, B3 as Normal, and B1 should be programmed

as Fault.

There can be no differentiation between MCP and detector operation on the same circuit.

Detector quantity and circuit length limits are shown in Table 9.4.5.

SEE
TEXT