XTP/XTC 601
Akwụkwọ ntuziaka nchekwa SIL
Mara: Tinye na ntuziaka ntuziaka
l97587 mbipụta 1.2 Septemba 2022
Ngwa Michell 

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Akwụkwọ a bụ ihe onwunwe nke Michell Instruments Ltd na enweghị ike depụtaghachi ya ma ọ bụ megharịa ya ọzọ, zigara ndị ọzọ ozi n'ụzọ ọ bụla, ma ọ bụ chekwaa ya na data ọ bụla.
Sistemụ nhazi na-enweghị ikike ederede nke Michell Instruments Ltd.
Ihe dị n'ime akwụkwọ ntuziaka nchekwa a agaghị abụ akụkụ nke ma ọ bụ gbanwee nkwekọrịta ọ bụla tupu ma ọ bụ dị adị, nkwa ma ọ bụ mmekọrịta iwu. Ọrụ niile dị n'akụkụ Michell Instruments dị n'ime nkwekọrịta ịre ahịa nke nwekwara ọnọdụ akwụkwọ ikike zuru oke yana naanị ọdabara. Okwu ọ bụla dị n'ime ebe a anaghị emepụta akwụkwọ ikike ọhụrụ ma ọ bụ gbanwee akwụkwọ ikike dị adị.
Akwụkwọ ntuziaka nchekwa XTP & XTC SIL
IHE: Agaghị emegharị ma ọ bụ gbanwee ngwaahịa a n'ụzọ ọ bụla. Agaghị anabata mgbanwe na-akwadoghị na ime nke a ga-ebute nchekwa arụrụ arụ, dị ka egosiri na ya
Ntụle IEC61508, ka ọ bụrụ ihe efu. A na-achịkwa nhazi nke ngwaahịa a na ime nke a ga-emebi nkwenye, asambodo na akwụkwọ ikike ngwaahịa a niile.
na-ejide. Biko kpọtụrụ Michell Instruments Ltd ozugbo maka ọrụ ọ bụla ma ọ bụ ajụjụ ọrụ ị nwere ike ịnwe.

Ntuziaka nchekwa

Akwụkwọ ntuziaka a metụtara naanị akụkụ SIL nke ngwaahịa a.
Maka ọrụ ndị ọzọ niile, nrụnye na ozi mmezi na-ezo aka na ntuziaka ngwaahịa. Onye ọrụ agaghị eji akụrụngwa a maka ebumnuche ọ bụla karịa nke ahụ ekwuru. Adịnyela ụkpụrụ karịrị oke ọnụ ahịa ekwuputara.
Akwụkwọ ntuziaka a nwere ozi gbasara akụkụ SIL nke iji ngwaahịa a. Jiri ndị ọrụ tozuru etozu na-eji ezigbo ọrụ injinia maka usoro niile dị n'akwụkwọ ntuziaka a.

Onye ruru eru

Ekwesịrị ịhazi ngwaahịa a naanị yana ijikọ ya na akwụkwọ a. Ịkwanye na ịrụ ọrụ nke ngwaahịa a kwesịrị ịbụ naanị ndị ọrụ tozuru etozu.

Ndebiri

A na-eji ndebiri ndebiri ndị a n'akwụkwọ ntuziaka a:

λ	Ọnụọgụ ọdịda
λD	Ọnụego ọdịda dị ize ndụ
DD	Ọnụego ọdịda achọpụtara dị ize ndụ
DU	Ọnụego ọdịda achọpụtaghị dị ize ndụ
s	Ọnụego ọdịda enweghị nchekwa
/h	Kwa elekere
ADC	Ntụgharị Analogue-gaa-Digital
DAC	Ntụgharị Digital-To-Analogue
DC	Mkpuchi nchọpụta
E/E/PE	Eletriki/Elektrọnịkị/Eletrọnịtị enwere ike ime
EMF	Ike Electromotive
ESC	Ndị ndụmọdụ nchekwa nchekwa injinia
EUC	Akụrụngwa na-achịkwa
dabara	Ọdịda n'oge
FREDA	Mmetụta Ọnọdụ ọdịda yana nyocha nyocha
FMR	Oke Ọnọdụ ọdịda
FS	Nchekwa arụ ọrụ
FSM	Njikwa nchekwa na-arụ ọrụ
HFT	Nnagide Mmejọ ngwaike
MDT	Oge Obere Oge
MTTR	Ogologo oge iji mweghachi
NPRD	Data ntụkwasị obi akụkụ anaghị eletrọnịkị
O2	Oxygen
O/C	Meghee Circuit
PFD	Ihe gbasara nke puru omume ọdịda na-achọ
PDF	Nkezi Ugboro nke ọdịda dị ize ndụ kwa elekere
PLC	Ihe njikwa mgbagha mmemme
PTI	Ogologo oge ule
QA	Ntụkwasị obi ịdị mma
RBD	Eserese ngọngọ ntụkwasị obi
S/C	Obere sekit
SFF	Nkeji ọdịda enweghị nchekwa
SIF	Ọrụ eji arụ ọrụ nchekwa
SIL	Ọkwa Ikwado Nchekwa
SR	Ihe metụtara nchekwa
Tp	Ogologo oge ule

Okwu mmalite

1.1 izugbe
Akwụkwọ ntuziaka a na-ezo aka naanị:
XTP601 Oxygen nnyefe.
XTP601 Oxygen Analyzer.
XTC601 Binary Gas Analyzer.
XTC601 ọnụọgụ gas na-ebufe.
Enwere mwepụta nke ụdị ọ bụla dị ka egosiri na tebụl dị n'okpuru:

Aha nyocha	Ụdị
XTP601-GP1	Onye nyocha ebumnuche izugbe nwere ngosipụta
XTP601-GP2	Onye nyocha ebumnuche izugbe nwere ndị na-ejide ire ọkụ
XTP601-EX1	Ihe nyocha mpaghara dị ize ndụ nwere ngosipụta
XTC601-GP1	Onye nyocha ebumnuche izugbe nwere ngosipụta
XTC601-GP2	Onye nyocha ebumnuche izugbe nwere ndị na-ejide ire ọkụ
XTC601-EX1	Ihe nyocha mpaghara dị ize ndụ nwere ngosipụta

1.2 Akwụkwọ achọrọ
Akwụkwọ a na-emetụta naanị yana njikọ akwụkwọ ndị a:

Aha nyocha	Ụdị	Akwụkwọ Mba
XTP601	Akwụkwọ ntuziaka onye ọrụ nyocha Oxygen (UK)	97313
XTP601	Akwụkwọ ntuziaka onye ọrụ binary gas Analyzer (UK)	97400

IHE: Maka ụdị ọ bụla, enwere akwụkwọ ntuziaka nwere otu ọdịnaya a sụgharịrị n'asụsụ ndị ọzọ.
Akwụkwọ a nwere data metụtara SIL nke a ga-achọrọ mgbe ị na-eji ngwaahịa XTP601 & XTC601 na sistemu eji arụ ọrụ nchekwa.
Ezubere ya maka ndị na-ahazi sistemu, ndị na-ewu ụlọ, ndị injinia na-arụzi ọrụ na ndị ọrụ ga-enye ngwaọrụ ahụ ọrụ.

Ntuziaka nchekwa

Emebere ngwaahịa ndị a maka iji na ngwa nchekwa.
Ntuziaka nchekwa niile metụtara naanị mgbama mmepụta analọgụ (4-20mA). Enyere ngwaahịa ndị a na SIL2 (IEC 61508). Akụrụngwa ngwaahịa a kwadoro SIL2
(IEC61508). Ojiji nke ngwaahịa ndị a agbakwunyere na sistemụ metụtara nchekwa ga-ekwe omume.
Nkọwa: Sistemụ eji arụ ọrụ nchekwa
Usoro nchekwa nchekwa na-arụ ọrụ nchekwa nke achọrọ iji nweta ma ọ bụ jikwaa ọnọdụ nchekwa na sistemụ. Ọ mejupụtara ihe mmetụta, otu mgbagha / sistemụ njikwa
, na mmewere nchịkwa ikpeazụ. Enwere ike ịme sistemu eji arụ ọrụ nchekwa (SIS) site na onye nyocha (dịka ọmụmaatụ XTP 02 Concentration), nchekwa mgbagha akwadoro nchekwa (dịka nchekwa nchekwa ma ọ bụ nchekwa PLC) yana mmewere ikpeazụ (dịka valvụ, ma ọ bụ mkpu nwere nzaghachi akọwapụtara). Nkọwa: Ọrụ nchekwa
A na-arụ ọrụ ahụ akọwapụtara site na sistemu eji arụ ọrụ nchekwa na ebumnuche nke imezu ma ọ bụ idobe usoro nchekwa na-atụle ọnọdụ akọwapụtara nke ọma.
Example: Nleta XTP O2 n'elu ma ọ bụ n'okpuru ọnụ ụzọ akọwapụtara.
2.1 Ọkwa Ikwado Nchekwa (SIL)
Ọkọlọtọ mba ụwa IEC 61508 na-akọwapụta ọkwa nchekwa nchekwa anọ pụrụ iche (SIL) site na SIL 1 ruo SIL 4. Ọkwa ọ bụla dabara na oke ohere maka ọdịda na a.
ọrụ nchekwa. Ihe dị elu nke SIL nke usoro ihe eji eme ihe nchekwa, nke dị elu nke nwere ike ịbụ na ọrụ nchekwa achọrọ ga-arụ ọrụ.
A na-ekpebi SIL nke a ga-enweta site na njirimara nchekwa ndị a:

• Nkezi puru omume ọdịda dị ize ndụ nke ọrụ nchekwa ma ọ bụrụ na achọrọ (PFDAvG)
• Nkwekọrịta mmejọ ngwaike (HFT)
• Iberibe ọdịda nchekwa (SFF)

Nkọwa: Tebụlụ na-esonụ na-egosi ndabere nke SIL na nkezi nke puru omume nke ọdịda dị ize ndụ nke ọrụ nchekwa nke sistemu eji arụ ọrụ nchekwa (PFDAvG). Tebụl ahụ na-ekwu maka "Ọdịmma ọchịchọ dị ala", ya bụ, ọrụ nchekwa achọrọ karịa otu ugboro kwa afọ na nkezi.

Ọnụ ego SIL	PFDavg
LIS 4	10–4 > PFDavg ≧ 10–5
LIS 3	10–3 > PFDavg ≧ 10–4
LIS 2	10–2 > PFDavg ≧ 10–3
LIS 1	10–1 > PFDavg ≧ 10–2

Tebụl 1 Ọkwa Ikwado Nchekwa
"Nkezi ohere nke ọdịda dị ize ndụ nke sistemu nchekwa nchekwa niile" (PFDAvG) na-awụfukarị n'etiti sistemụ SIL niile.

Tebụlụ na-esote na-egosi ọkwa nke ntụkwasị obi nchekwa (SIL) maka sistemụ nchekwa niile maka sistemu B dabere na oke ọdịda nchekwa (SFF) yana nnabata mmejọ ngwaike (HFT). A na-atụle nkeji XTP na XTC Ụdị B n'ihi mgbagwoju anya ha. Ụdị B na-agụnyekwa ihe mmetụta sensọ na ndị na-emepụta ihe ndị nwere ihe mgbagwoju anya, dịka microprocessors (leekwa IEC 61508, Nkebi 2).

SFF	HFT
	0	1	2
<60%	Ekweghị	SIL1	SIL2
60 ruo 90%	SIL1	SIL2	SIL3
90 ruo 99%	SIL2	SIB	SIL4
> 99%	SIL3	SIL4	SIL4

Tebụl 2 Ọkwa Ikwado Nchekwa

Ntuziaka nchekwa ngwaọrụ akọwapụtara

3.1 Ngwa
Nyocha ngwaike nke XTP601 & XTC601 ga-enye onye injinia nchekwa data ọdịda achọrọ dị ka IEC 61508 si dị.
Ngwaike nke XTP601 & XTC601 na-emeju ihe ndị a chọrọ n'ihe gbasara nchekwa ọrụ na SIL 2 dị ka IEC 61508. XTP601 & XTC601 na-eji na nchekwa.
ngwa iji nyochaa oke.
3.2 Ọrụ nchekwa
A na-eji XTP601 & XTC601 eme ihe maka nleba anya ọnụ ụzọ nke onye ọrụ.
A tụlere usoro XTP601 Oxygen Analyzer megide ọrụ nchekwa ndị a:

• Ikike ịchọpụta ọnụnọ oxygen n'ime mmiri gas ọzọ wee mepụta mmepụta 4-20mA.
  A tụlere XTC601 Binary Gas Analyzer megide ọrụ nchekwa ndị a:
• Ikike ịchọpụta gas lekwasịrị anya na mmiri gas ọzọ wee mepụta mmepụta 4-20mA.

Ịdọ aka ná ntị
Hụ ngalaba "Ntọala" na "Njirimara nchekwa" maka ntọala na ọnọdụ njide. A ghaghị imezu ọnọdụ ndị a iji mezuo ọrụ nchekwa. Mgbe arụchara ọrụ nchekwa ahụ, a ga-ebute sistemu eji arụ ọrụ nchekwa na-enweghị ọrụ mkpọchi onwe ya na nlele ma ọ bụ ọnọdụ nchekwa ọzọ n'ime Mean Time To Repair (MTTR). MTTR bụ awa 168. Maka ozi ngwaahịa zuru oke rụtụ aka na ntuziaka onye ọrụ 97313 & 97400.
3.3 Ntọala
Mgbe echichi na inye ọrụ (na-ezo aka na ntuziaka onye ọrụ), ekwesịrị ịme ntọala paramita ndị a maka ọrụ nchekwa:
Ntọala nchekwa

Ọrụ
Mmepụta analog	Họrọ 4–20mA (NAMUR)

Nchedo megide mgbanwe nhazi
Mgbe nhazichara, a ga-agbanwe koodu nnweta menu nke XTP601 & XTC601 ka e wee chebe ngwaọrụ ahụ pụọ na mgbanwe na arụ ọrụ na-akwadoghị.
Nyochaa ọrụ nchekwa mgbe echichi gasịrị, a ga-emerịrị ule ọrụ nchekwa.
Iji gas ntụaka, ntụgharị N2, 4mA ga-atụrịrị na mmepụta analọg.
Maka ule nke ọrụ nchekwa, ọ dị mkpa iji gas ntụaka nke abụọ nwere oke ikuku oxygen. Nsonaazụ nke nha ga-adị n'ime oke
nke ± 5% (ogologo zuru oke) nke nsonaazụ a tụrụ anya ya.
3.4 N'ihe gbasara mmejọ
Mmejọ
A na-akọwa usoro ahụ ma ọ bụrụ na ọ dị njọ na akwụkwọ ntuziaka onye ọrụ.
Mmezi
Ekwesịrị iziga ngwaahịa ahụ nwere nkwarụ na ngalaba ọrụ Michell Instruments na nkọwa nke mmejọ na ihe kpatara ya. Mgbe ị na-enye ngwaahịa nnọchi, biko kọwaa nọmba nsonazụ nke ngwaahịa mbụ ahụ. Enwere ike ịhụ nọmba nsonazụ ahụ na efere aha. Enwere ike ịchọta ozi gbasara ebe ụlọ ọrụ Michell Instruments dị na ndị a web adreesị: www.michell.com 
3.5 Nlekọta / mmezi
Anyị na-akwado ka a na-enyocha ọrụ XTP601 & XTC601 n'oge oge niile nke otu afọ.
Lelee ma ọ dịkarịa ala ihe ndị a: Nwalee ọrụ bụ isi nke XTP601 & XTC601 dị ka akọwara n'ime akwụkwọ ntuziaka onye ọrụ.
Na-enyocha nchekwa
Ịkwesịrị ịlele ọrụ nchekwa nke sekit nchekwa niile dịka IEC 61508/61511 si dị.
A na-ekpebi oge ule n'oge mgbasa ozi sekit nchekwa nke ọ bụla na sistemụ. Ogologo oge akwadoro dabere na ngwa mana ya
kwesịrị ịdịkarịa ala otu ugboro n'afọ. Iji chọpụta mmejọ ndị achọpụtaghị ihe dị ize ndụ, a ga-eji ule na-esonụ lelee mmepụta analọgụ XTP601 & XTC601:
Iji mee nnwale ihe nchekwa nchekwa, a ga-emerịrị ule abụọ (1 na 2). Nnwale akaebe 1 nwere usoro akọwara na tebụl dị n'okpuru.

Nzọụkwụ	Omume
1	Gafee nchekwa PLC ma ọ bụ mee ihe ọzọ dabara adaba iji zere njem ụgha.
2	Mepụta ma ọ bụ mee ka ọnọdụ mkpu ịmanye ngwaahịa ahụ ka ọ gaa na mmepụta mkpu dị elu ugbu a wee chọpụta na ihe analog ugbu a ruru uru ahụ.
3	Mepụta ma ọ bụ mee ka ọnọdụ mkpu ịmanye ngwaahịa ahụ ka ọ gaa na mmepụta mkpu dị ala ma chọpụta na ihe analog ugbu a ruru uru ahụ.
4	Weghachite loop ka ọ rụọ ọrụ zuru oke.
5	Wepu uzo ngafe na nchekwa PLC ma ọ bụ weghachi ọrụ nkịtị.

Nnwale akaebe 2 nwere usoro akọwara na tebụl dị n'okpuru.

Nzọụkwụ	Omume
1	Gafee nchekwa PLC ma ọ bụ mee ihe ọzọ dabara adaba iji zere njem ụgha.
2	Mee ule akaebe 1.
3	Mee nzizi ihe 2 nke ngwaahịa.
4	Jiri opekata mpe otu ihe atụ tụọ ntụaka n'etiti nkeji na kacha elu. Ị ga-eji gas calibration nwere ntinye gas a ma ama. Nsonaazụ a tụrụ anya ga-enwerịrị nnabata nke na-erughị 5%.
5	Weghachite loop ka ọ rụọ ọrụ zuru oke.
6	Wepu uzo ngafe na nchekwa PLC ma ọ bụ weghachi ọrụ nkịtị.

Nnwale a ga-achọpụta ihe karịrị 90% nke ọdịda "du" enwere ike na ngwaahịa a.
Ọ bụrụ na achọpụtara mmejọ, ekwesighi iji ngwaahịa ahụ ruo mgbe edozichara ya kpamkpam.
3.6 Njirimara nchekwa
Edepụtara njirimara nchekwa dị mkpa maka iji usoro ahụ na nkwupụta SIL nke nkwekọ (lee Ihe Odide A.1). Ụkpụrụ ndị a na-emetụta n'okpuru ọnọdụ ndị a:

• A na-eji XTP601 & XTC601 naanị na sistemụ metụtara nchekwa yana ọnọdụ achọrọ dị ala maka ọrụ nchekwa.
• Arụ ọrụ mpaghara abanyela na parampat/ntọala metụtara nchekwa (lee ngalaba “Ntọala”) wee lelee tupu ịmalite ọrụ etinyere nchekwa.
• Akpọchiela XTP601 & XTC601 megide mgbanwe/ọrụ achọghị yana enweghị ikike.
• Okpomọkụ kacha arụ ọrụ bụ +40°C maka XTC601 na +55°C maka XTP601.
• Ihe niile eji eme ihe kwekọrọ na ọnọdụ usoro.
• MTTR mgbe mmejọ ngwaọrụ bụ awa 168.
• A ghaghị ịhazi onye na-edozi mgbagha (PLC) ka ọ chọpụta ihe karịrị oke (> 21mA) na n'okpuru oke (<3.6mA) ọdịda nke XTP601 & XTC601 (Fail High and Fail Low) ma ga-amata ndị a dị ka ọdịda nke ngwaahịa na ọ bụghị. mee njem na-adịghị mma.
  Hụkwa ngalaba Ntọala nke akwụkwọ ntuziaka a na Ihe Odide N'okpuru.

Ihe odide ntụkwasị A
A.1 Nkwuwapụta nke Nkwekọrịta SIL

Ndị ndụmọdụ nchekwa nchekwa injinia
Onye na-eweta ụgwọ nchekwa na-arụ ọrụ na nka nka
Ntụkwasị obi ngwaike Random yana Asambodo Nlele Sistemụ
Nchekwa na-arụ ọrụ nke Sistemụ Eletrọnịkị mmemme metụtara nchekwa
The Michell Instruments UK Ltd, XTP601 Process Oxygen Analyzer & XTC601 Binary Gas Analyzer ka enyochala ma bụrụ ndị a na-ewere na ha nwere ike iji rụọ ọrụ nchekwa dị ala ruo (yana gụnyere) ikike SIL 2 n'ihe gbasara usoro, ọdịda ngwaike na-enweghị usoro na ụkpụrụ ụlọ. mmachi.
Ntụle a gbadoro ụkwụ n'echiche, data enyere na ndụmọdụ enyere na:

• Engineering Safety Consultants Ltd akụkọ: H215_FM001 rev. 4.
  A tụlere ngwaahịa ndị a megide ụdị ọdịda ndị a:
• XTP601: Ikike ịchọpụta ọnụnọ oxygen n'ime mmiri gas ọzọ ma mepụta mmepụta 420mA;
• XTC601: Ikike ịchọpụta gas lekwasịrị anya na mmiri gas ọzọ wee mepụta mmepụta 4-20mA.
  Emere nyocha ahụ iji chọpụta nnabata IEC 61508 (2010 Edition) gbasara:
• Ọdịda Ngwaike Random (PFD buru amụma dị ka egosiri na Tebụl dị n'okpuru) yana oge nkwụsịtụ (MDT) nke awa 168, oge nnwale akaebe (PTI) nke otu afọ (awa 8760), mkpuchi nnwale nke 95% ma ọ bụ 90% na Oge nkwụsịtụ nke afọ 10 (awa 87600);
• Ọdịda ngwaike Random site na PFH enwetara:
  o XTP601 = 5.4E-08
  o XTC601 = 3.9E-08
• Ọdịda ngwaike Random site na DD enwetara:
  o XTP601 = 7.4E-07
  o XTC601 = 7.0E-07
• Ọdịda ngwaike Random site na DU enwetara:
  o XTP601 = 5.4E-08
  o XTC601 = 3.9E-08
• Mgbochi ihe owuwu (ụdị B, SFF>90%, <99%), HFT = 0;
• Ikike SIL 2 na-ahazi megide IEC 61508 (mbibi 2010) Nkebi 1, 2 na 3.

Ngwaọrụ	Nnwale akaebe Mkpuchi (PTC)	Ebumnuche PFD (20% nke SIL 2 band)	EmezuruPFD	Echere Emezuru PFD	SFF	Ụdị	Echere Emezuru SIL (Akụkụ)	Echere Ọnụahịa kasị elu nke SIL Ike
XTP601	95%	2.E-03	4.E-04	2	94%	B	2	2
	90%		5.E-04	2			2	2
XTC601	95%	2.E-03	3.E-04	2	96%	B	2	2
	90%		4.E-04	2			2	2

Mkpa: Ekwesiri ighota na ntule a agunyeghi nkwenye nke oge nzaghachi nke ngwaọrụ. Maka oge nzaghachi (yana echiche ọ bụla dị mkpa) ekwesịrị ịme ntụaka na ntuziaka nchekwa nke ngwaọrụ ọ bụla yana ngụkọta oge nzaghachi SIF ga-atụnyere oge nchekwa usoro maka ngwa a kapịrị ọnụ.

Onye isi nchịkwa: Simon Burwood
Onye otu IEC 61508 (MT61808-1-2) & IEC 61511 (MT61511) kọmitii nleba anya ụbọchị: February 2020
Ụbọchị mmeghari: Ọgọst 2022, dị irè ruo Ọgọst 2024
Akwụkwọ: H215_CT001 rev. 3

Ụgwọ nke ụlọ ọrụ A.2 Engineering Safety Consultants Limited Mwepụta akụkọ nyocha London, UK
2.1 izugbe
Akụkọ a na-enye Ntụle ojiji mbụ nke Michell Instruments UK Ltd, XTP601 Process Oxygen Analyzer na XTC601 Binary Gas Analyzer, dị ka akọwara na mbụ.
Jiri ihe achọrọ na IEC 61511 (Mbipụta nke abụọ) Nkeji edemede 2 na 11.5.3 [11.5.4] gụnyere atụmatụ nke puru omume nke ọdịda na ọchịchọ (PFD), Fraction Failure Safe Failure (SFF) na re.view nke ikike nhazi dị ka ihe akaebe na-akwado maka ịzere na ibelata ọdịda usoro.
Emere ọnọdụ ọdịda ọdịda na nyocha nyocha (FMEDA) na XTP601 & XTC601 iji tụọ ọnụego ọdịda ngwaike na-enweghị usoro iji chọpụta dabara adaba maka ojiji na ọrụ nchekwa gbasara PFD na ụkpụrụ ụlọ chọrọ n'ihe gbasara nnabata ihe mgbochi ngwaike. (HFT) na SFF, na-eji usoro zuru ezu na Route
1H na IEC 61508-2 [1].
2.2 Nkwenye ntụkwasị obi ngwaike
Ngwa ndị a ga-abụ akụkụ nke sistemụ ihe mmetụta sensọ nke ọrụ nchekwa nchekwa (SIF) wee mee nyocha iji gosipụta ike ya na ya.
Mgbanwe nke ọnụahịa PFD. Ewepụrụ ihe mmetụta nke fọdụrụ, ihe mgbagha mgbagha na sistemụ mmewere ikpeazụ na ntule ahụ, iji nye ohere maka onyinye PFD ha, ngwaọrụ ndị ahụ.
a tụlere megide 20% nke ọkwa nchekwa nchekwa (SIL) 2 PFD band (dịka SIL 2 band gbanwetụrụ ka ọ bụrụ 2.0E-03).
Ntụle a dabere n'echiche na a ga-arụzi nrụzi site na oge mbelata oge (MDT) nke awa 168, oge nnwale nnwale (PTI) nke otu afọ (8760).
awa) ma nwee ike ikpughe 100% nke ọdịda achọpụtaghị.
A tụlere usoro XTP601 Oxygen Analyzer megide ọrụ nchekwa ndị a:

• Ikike ịchọpụta ọnụnọ oxygen n'ime mmiri gas ọzọ wee mepụta mmepụta 4-20mA.
  A tụlere XTC601 Binary Gas Analyzer megide ọrụ nchekwa ndị a:
• Ikike ịchọpụta gas lekwasịrị anya na mmiri gas ọzọ wee mepụta mmepụta 4-20mA.
  Tebụl 3 na-egosi nchịkọta nke nsonaazụ XTP601 & XTC601 dabere na data enyere na echiche ndị enyere na akụkọ a. E gosipụtara nsonaazụ zuru oke maka nkwenye ntụkwasị obi ngwaike na Tebụl 4.

Ngwaọrụ	Ebumnuche PFD (20%) nke SIL2 band)	PFD nwetara	PFD nwetara (SIL)	SFF	Ụdị	Emezuru SIL (Architecture HFT = 0)	N'ozuzu enwetara SIL
XTP601	2.E-03	4.E-04	2	94%	B	2	2
XTC601	2.E-03	3.E-04	2	96%	B	2	2

Isiokwu 3 SIL nchịkọta akụkọ

IHE ODIDE NTụKWAS A A

Ntuziaka ngwaọrụ		XTP601 & XTC601
Nkọwapụta ọrụ		XTP601 Oxygen Transmitter XTC601 Binary Gas Analyzer
Nhazi/Ntọala Software		Dị ka ndị ahịa ahịa
Ụdị ion		Firmware maka XTP601: 36217 V1.09 Firmware maka XTC601: 37701 V1.06
Ụdị eserese ngwaike		XTP601: 80895/C V2.0 XTC601: 81003/C V1.0
Nhazi/Ntọala ngwaike		Dị ka ndị ahịa ahịa
Nkọwapụta ụdịdị ọdịda	Achọpụtara dị ize ndụ	dị ize ndụ achọpụtara ọnụego ọdịda kwa elekere
	Dị ize ndụ achọpụtaghị	dị ize ndụ achọpụtaghị ọnụego ọdịda kwa elekere
	Nchekwa	Ọnụego ọdịda adịghị mma (ma ọ bụ nke adịgboroja) kwa elekere
Atụmatụ ọdịda ọdịda		XTP601 7.0E-07, XTC601 5.9E-07
Ọdịda a na-achọpụtaghị dị ize ndụ (ADU)		XTP601 5.41E-08, XTC601 3.87E-08 (FIT/họrọ)
Ọdịda achọpụtara dị ize ndụ (ADD)		XTP601 7.39E-07, XTC601 7.00E-07 (FIT/họrọ)
Ọdịda Nchekwa (AS)		XTP601 & XTC601 1.57E-07 (FIT / elekere)
Ihe gbasara nke puru omume ọdịda na-achọ (PFD)		XTP601 3.6E-04, XTC601 2.9E-04
Nkeji ọdịda nchekwa nchekwa (SFF)		XTP601 94% XTC601 96%
Nkwekọrịta mmejọ ngwaike (HFT)		0
Nkewa (Ụdị A ma ọ bụ Ụdị B)		B
Achọ (Ọchịchọ dị ala ma ọ bụ nnukwu ọchịchọ)		Dị ala
Usoro nnwale akaebe		Lee akụkụ 3.5
Nwụnye		Rụtụ aka na ntuziaka onye ọrụ 97313 (XTP) & 97400 (XTC)
Nkezi ndụ ngwaọrụ (afọ)		5
Environmental Profile		Max +50°C. 80%rh>31°C/50%>+50°C
Sistemume/Egosipụtara na Ọkwa Ikwado Nchekwa Oji		2
Echiche		Rụtụ aka na ntuziaka onye ọrụ
Ndetu izugbe na ụkpụrụ dị mkpa		Ngwaahịa a na-akwado ụkpụrụ na nkebiokwu nke EU ATEX, EMC, PED Ntuziaka. Rụtụ aka na nkwupụta EU ewepụtara na ngwaahịa ọ bụla maka nkọwa zuru oke nke ụdị ọhụrụ.
Ihe nyocha chọrọ		Lee akụkụ 3.5

Isiokwu 4 Nsonaazụ nkwenye

IHE.....

Ụlọ ọrụ ENGINEERING SAFETY CONSULTANTS LTD
Ụlọ nke abụọ, Ụlọikpe Exchequer, 2 St. Mary Axe,
London, EC3A 8AA UK
Ekwentị/Fax: +44 (0)20 8542 2807
E-mail: info@esc.uk.net Web: www.esc.uk.net
Aha ya na England na Wales: 7006868
Ụlọ ọrụ edebanyere aha: 33 St. Mary Axe, London, EC3A 8AA
www.ProcessSensing.com
http://www.michell.com

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Ngwa MICHELL Ngwa XTC 601 Binary Gas Analyzer maka nleba anya hydrogen [pdf] Akwụkwọ ntuziaka XTC 601 Binary Gas Analyzer for Hydrogen Monitoring, XTC 601, Binary Gas Analyzer for Hydrogen Monitoring, Hydrogen Monitoring, Gas Analyzer, Analyzer

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