Great Yarmouth
The port, owned by Peel Ports since 2015, services the southern North Sea oil and gas sector and has an offshore energy operations and maintenance campus funded by Norfolk County Council.
Norwich · Ex-proof
Ex-Proof Mobile Phone in Norwich
The Norwich City Council area had an estimated population of about 144,000, so engineers and technicians are drawn from a sizeable local labour pool as well as from the wider county. Nearby hazardous-area work centres on the Bacton gas terminal complex on the north Norfolk coast, which receives North Sea gas, and the offshore energy port at Great Yarmouth. This page explains what to look for in an Ex-proof mobile phone for Norwich and the Norfolk coast, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicEx-proof
DeviceMobile Phone
RouteSpecification
WhereNorwich
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Norwich and the Norfolk coast: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof mobile phone for Norwich and the Norfolk coast
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Norwich and the Norfolk coast: Gas terminal process areas, Gas receipt and blending, Interconnector terminals | Classified by the site operator |
Product · Norwich
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Norwich. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Norwich and the Norfolk coast
Norwich and the Norfolk coast: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Shell
- Perenco
- Eni
- National Grid
Classified areas to expect
- Gas terminal process areas
- Gas receipt and blending
- Interconnector terminals
- Offshore support port facilities
Local conditions · Norwich and the Norfolk coast
What Norwich and the Norfolk coast means for portable equipment
Bacton
Bacton is a complex of six gas terminals operated by Shell, Eni, Perenco and National Grid, plus the Interconnector and BBL terminals linking to continental Europe.
Field notes · Norwich and the Norfolk coast
More about Norwich and the Norfolk coast that matters for portable equipment
Norwich and the Norfolk coast: projects and investment
The Scroby Sands Wind Farm, with thirty turbines, is visible from the Great Yarmouth seafront, a reminder that offshore wind operations and maintenance are run from the Norfolk coast.
Norwich and the Norfolk coast: logistics and access
Great Yarmouth, the main energy port for the area, lies 20 miles east of Norwich, reached by the A47 and by the Wherry Lines railway from Norwich station to its terminus there.
Norwich and the Norfolk coast: who works there
NHV Helicopter Services has operated from Norwich since 2008, mainly carrying passengers on daily offshore oil and gas flights with AW139 aircraft from its terminal at the Klyne Business Aviation Centre.
Norwich and the Norfolk coast: geography and layout
Norwich is the county town of Norfolk, lying on the River Wensum about 100 miles north-east of London and 65 miles east of Peterborough, and is the largest settlement in East Anglia.
The term · Ex-proof
What “Ex-proof” means for a smartphone
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Norwich and the Norfolk coast. A marking check at Bacton would concentrate on natural gas, which usually sits in a lower gas group than hydrogen, so IIC marking offers margin. The operator's zone documents define the requirement for each terminal. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, pending certification.
The route · specification
Specifying an Ex-proof mobile phone for Norwich
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Norwich
Frequently asked questions
Can we buy an Ex-proof mobile phone in Norwich today?
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
What does an Ex-proof mobile phone in Norwich cost?
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
What Ex marking will the IS-04Z1 carry?
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
Which areas at Norwich and the Norfolk coast would use it?
Likely candidates are gas terminal process areas, gas receipt and blending, interconnector terminals, offshore support port facilities. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Which standards apply to Ex phones used in Norfolk?
In Great Britain, equipment for explosive atmospheres is normally supplied under UK regulations with UKCA marking, and CE-marked ATEX equipment has been widely accepted under transitional rules. Check the current position with the site operator and certification body before ordering handheld devices.
How long does it take to reach offshore energy sites from Norwich?
Great Yarmouth is about 20 miles east, so road transfers of equipment and engineers are short, but offshore access depends on vessel and helicopter schedules and weather. Plan equipment delivery and testing onshore at the port base ahead of crew changes, and confirm timings with the operator.
Is Norwich a hazardous-area site?
No. It is a cathedral city and service centre for East Anglia. Nearby hazardous-area work centres on the Bacton gas terminal complex on the north Norfolk coast and the offshore energy port at Great Yarmouth. Confirm requirements with the site operator for the specific terminal.
Related guides
Keep exploring
Related guides for Norwich and for United Kingdom.
Rugged Mobile Phone in NorwichSame place, different guide
Explosion-Proof Mobile Phone in NorwichSame place, different guide
ATEX and IECEx Mobile Phone in NorwichSame place, different guide
Hazardous Area Mobile Phone Distributor in NorwichSame place, different guide
Intrinsically Safe Mobile Phone in NorwichSame place, different guide
IECEx Mobile Phone Distributor in NorwichSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Northern IrelandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in EdinburghElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in ScotlandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in WalesElsewhere in United Kingdom
United Kingdom market guideCertification route and regulators
All guides for United KingdomEvery route we cover
Certification statusWhat is in progress
Enquiry · Norwich and the Norfolk coast
Ask about the IS-04Z1 for Norwich and the Norfolk coast, United Kingdom
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Norwich and the Norfolk coast
Launching Q4 2026
Planning for Norwich?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.