WIKA IS-3 Operating Instructions Manual
Addition to the operating instructions
Ergänzung zur Betriebsanleitung
Données relatives à la sécurité
Suplemento del manual de instrucciones
Safety-related data, model IS-3
Sicherheitstechnische Daten, Typ IS-3
Données relatives à la sécurité, type IS-3
Suplemento del manual de instrucciones, modelo IS-3
Model IS-3
EN
DE
FR
ES
EN
Safety-related data, model IS-3 Page 3 - 4
DE
Sicherheitstechnische Daten, Typ IS-3 Seite 5 - 6
Données relatives à la sécurité, type IS-3 Page 7 - 8
FR
Suplemento del manual de instrucciones, modelo IS-3 Página 9 - 10
ES
2 Addition to the operating instructions, model IS-3
14116671.02 02/2019 EN/DE/FR/ES
1. Applications / 2. Data for functional safety
1. Applications
The pressure transmitter model IS-3 with measuring range ≤ 1,000 bar is suitable for SIL2 applications
in process industry for operating modes with low demand rate.
MTTFd values for dening the performance level (PL) are available for applications in machine building.
2. Data for functional safety
Data for functional safety in the process industry
Applied standards EN 61508-2:2010 and EN 61511:2004; SN29500
Device type B
HFT, Hardware Fault Tolerance 0
SFF, Safe Failure Fraction 64 %
, Total Failure Rate 126 FIT
λ
total
, No Eect Failure Rate 8 FIT
λ
NE
, Safe Undetected Failure Rate 27 FIT (consider the measured error within -3.5 ... +10 %)
λ
SU
, Dangerous Detected Failure Rate 51 FIT (loop current < 3.8 mA or > 20.5 mA)
λ
DD
, Dangerous Undetected Failure Rate 40 FIT (measured error outside of -3.5 ... +10 %, loop current within
λ
DU
, Average Probability of Failure on Demand 1.75 x 10
PFD
a
T
, Proof Test Intervall 1 year, Test to discover a signal drift: Deviation from zero point and
proof
Suitable for Safety Integrity Level SIL 2 (per IEC 61511-1:2003 section 11.4.4, involving prior use, no
Data for functional safety in machine building
Applied standards ISO 13849-1:2008; SN29500
, Mean Time To Dangerous Failure 1254 years
MTTF
d
Diagnosis none (test to discover a signal drift: Deviation from zero point and
3.8 ... 20.5 mA)
-4
full scale value < 0.5 % of the nominal pressure
diagnosis for active error detection implemented in the device)
full scale value < 0.5 % of the nominal pressure in a time interval of
max. 12 months)
EN
14116671.02 02/2019 EN/DE/FR/ES
3Addition to the operating instructions, model IS-3
3. Operating conditions
3. Operating conditions
■
All values apply at a mean ambient temperature of max. 40 °C and for the ambient ratings according
to SN 29500 standards.
■
EN
The case of the pressure transmitter is undamaged.
■
The pressure transmitter is not exposed to strong vibrations.
■
The process connection is suitable for the measuring range.
■
The wetted parts are suitable for the medium.
■
For safety applications, hydrogen is not permissible as a medium.
■
No pressure peaks.
■
No static pressures are higher than the values indicated in the data sheet.
■
Use a shielded cable grounded at least at one end.
■
The maximum measured error of -3.5 … +10 % of span must be considered.
■
A measured value of < 3.8 mA and > 20.5 mA has to be interpreted as an error signal by the logic
unit.
■
The pressure transmitter is only suitable for pressure measurement in applications where the
pressure values change dynamically.
For the process industry, the following applies in addition:
■
Electromagnetic environment in accordance with EN 61326-1:2006, EN 61326-2-3:2006 and
EN 61326-3-2:2008.
■
Deviation to EN 61326-3-2:2008: Frequencies below 100 kHz not tested according to IEC 61000-4-6.
For machine-building applications, the following applies in addition:
■
Electromagnetic environment in accordance with EN 61326-1:2006, EN 61326-2-3:2006 and
EN 61326-3-1:2008.
■
In accordance with EN 61326-3-1:2008, for testing in accordance with IEC 61000-4-5, a test level
of 2 kV is required. The interference immunity of the IS-3 is 1 kV. To achieve a higher interference
immunity, external protective measures must be provided.
4 Addition to the operating instructions, model IS-3
14116671.02 02/2019 EN/DE/FR/ES
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