E2S D1xS1RDC024-S, Instruction Manual

Page: 15 / 22

European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D190-00-651-IS Issue 2 06-03-2023 Sheet 15 of 15
20) Product Coding for Fault Resistor and Customer EOL Resistor
The customer is able to identify the resistor values chosen on purchase from the product code.
This is represented by the last three characters:
D1xS1FDC024AB1S1R- AFZ
•
The first A character denotes the value of the Fault Resistor (FR) Default value is 2.2 k
Ω (Code = A)
unless an alternative value is requested
when ordering.
•
The second F character denotes the value of the Current Sense Resistor (CSR) Default value is 3.3 k
Ω (Code = F) unless an alternative
value is requested when ordering.
•
The third Z character denotes the value of the unit End Of Line Resistor (EOL) By default no EOL is fitted (Code = Z) A factory fitted EOL
resistor can be specified when ordering.
The values of resistors available are shown in table 7 below.
Code Resistor Value
Default resistor coding as follows.
D1xS1FDC024AB1S1R- AFZ
Example of a custom requirement resistor coding:
D1xS1FDC024AB1S1R- GEF
Where the (FR) Fault Resistor is (G = 3.9 kΩ)
(CSR) Current Sense Resistor is (E = 2.7 kΩ)
(EOL) End Of Line resistor is (F = 3.3 k
Ω)
A 2.2
kΩ
B 1.0
kΩ
C 1.5
kΩ
D 1.8
kΩ
E 2.7
kΩ
F 3.3
kΩ
G 3.9
kΩ
H 4.7
kΩ
J 5.6
kΩ
K 6.8
kΩ
L 8.2
kΩ
M 11
kΩ
Z None Fitted
Table 7: Resistor Value code
Note : To utilise the full monitoring functionality the 4-wire configuration is recommended. An EOL resistor is not required for this configuration.
The alternative 2-wire configuration requires an EOL resistor to be fitted. The EOL resistor can be specified during ordering and factory fitted or selected
and fitted during the alarm horn sounder installation.
See section 9 for EOL resistor location and wattage requirements. E2S recommends a value of 2.2K Ohm. If an alternative value is required, please
see section 16-2.
Both the (FR) Fault Resistor and (CSR) Current Sense Resistor are factory fitted and cannot be user replaced.