Turnaround cycles
Planned maintenance shutdowns bring large contractor workforces into classified areas; Reduc, for example, has shutdowns scheduled in 2026.
Brazil Refineries · explosion proof
Explosion-Proof Mobile Phone in Brazil Refineries
This is a regional grouping rather than a single site. Revamp projects are under way at the Presidente Bernardes (RPBC), Paulinia (Replan) and Duque de Caxias (Reduc) refineries, with hydroprocessing units planned at Revap and Refap. If you are specifying an explosion proof mobile phone for Brazilian refineries, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
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 topicexplosion proof
DeviceMobile Phone
RouteSpecification
WhereBrazil Refineries
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Brazilian refineries: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · explosion proof
Checklist: explosion proof mobile phone for Brazilian refineries
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Brazilian refineries: Hydrotreater and hydrogen units, Flare and wastewater areas, Refinery process units | Classified by the site operator |
Product · Brazil Refineries
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 Brazil Refineries. 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 · Brazilian refineries
Brazilian refineries at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- Petrobras
Classified areas to expect
- Hydrotreater and hydrogen units
- Flare and wastewater areas
- Refinery process units
- Crude and product tank farms
Local conditions · Brazilian refineries
Conditions in Brazilian refineries that affect handheld equipment
Ownership has changed
Petrobras has sold some refineries (for example RLAM in Bahia and Reman in Manaus), so procurement rules differ by owner.
Field notes · Brazilian refineries
More about Brazilian refineries that matters for portable equipment
Brazilian refineries: who works there
Of eight refineries once offered for sale, only two were sold (Mataripe and the Manaus refinery), and Petrobras later resumed investing in the rest of its refining park.
Brazilian refineries: logistics and access
The same plan allocates 2.1 billion dollars to remove logistics bottlenecks, including expanding and optimising terminals and transport infrastructure that serve the refineries.
Brazilian refineries: projects and investment
Under the Strategic Plan 2024-28+ Petrobras budgets 16.7 billion US dollars across refining, transport and marketing, with 9 billion dollars earmarked for refining, which implies a long pipeline of shutdown and revamp work.
Brazilian refineries: who works there
Petrobras' REPLAN refinery at Paulinia, Sao Paulo, is the largest in Brazil at 434,000 barrels per day, and the 208,000 b/d REPAR refinery at Araucaria, Parana, is another major site in the 2024-28 plan.
The term · explosion proof
What “explosion proof” means for a smartphone
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Brazilian refineries. In the refinery context, explosion-proof is a casual term spanning process units, tank farms, loading racks and jetties. Fixed equipment may use flameproof Ex d, whereas a handheld relies on intrinsic safety. The IS-04Z1 is designed on the intrinsic safety principle and awaits certification.
The route · specification
Specifying an explosion proof mobile phone for Brazil Refineries
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 · Brazil Refineries
Frequently asked questions
Can we buy an explosion proof mobile phone in Brazil Refineries 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 explosion proof mobile phone in Brazil Refineries cost?
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
Is the IS-04Z1 explosion proof or intrinsically safe?
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Which areas at Brazilian refineries would use it?
Likely candidates are refinery process units, crude and product tank farms, loading racks and jetties, hydrotreater and hydrogen units. 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.
How are devices usually approved for Petrobras refineries?
Refinery contractors typically check Ex certification marking, temperature class and gas group against the area classification, plus local radio approval. The detail varies by site and contractor, so confirm the requirement with the refinery safety group and your contractor induction pack.
Do refinery turnarounds change the device requirements?
Often. During shutdowns and revamps, work shifts between live and isolated units, and permits define which areas are gas-tested. Many sites keep the same Ex requirement for the whole fence line to avoid errors, so confirm with the operator and the turnaround contractor.
When is the best time to deploy handsets at a refinery?
Maintenance shutdowns are a natural point, because large contractor workforces enter classified areas, and Reduc has shutdowns scheduled in 2026. Plan MDM enrolment and charging well before mobilisation. Confirm timing and rules with the site operator, as schedules change.
Related guides
Keep exploring
More on Brazil Refineries, and on other places in Brazil.
ATEX and IECEx Mobile Phone Distributor in Brazil RefineriesSame place, different guide
Industrial Mobile Phone Distributor in Brazil RefineriesSame place, different guide
Rugged Mobile Phone Distributor in Brazil RefineriesSame place, different guide
IECEx Mobile Phone Distributor in Brazil RefineriesSame place, different guide
Intrinsically Safe Mobile Phone in Brazil RefineriesSame place, different guide
Ex-Proof Mobile Phone in Brazil RefineriesSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Santos BasinElsewhere in Brazil
ATEX and IECEx Mobile Phone Distributor in Rio de JaneiroElsewhere in Brazil
ATEX and IECEx Mobile Phone Distributor in Manaus Industrial ZoneElsewhere in Brazil
ATEX and IECEx Mobile Phone Distributor in MacaéElsewhere in Brazil
Brazil market guideCertification route and regulators
All guides for BrazilEvery route we cover
Certification statusWhat is in progress
Enquiry · Brazilian refineries
Ask about the IS-04Z1 for Brazilian refineries, Brazil
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · Brazilian refineries
Launching Q4 2026
Planning for Brazil Refineries?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.