Climate
Hot, humid equatorial conditions with rain through the year.
Dumai Refinery · Ex-proof
Ex-Proof Smartphone in Dumai Refinery
The Dumai refinery has operated since 1971, and the Putri Tujuh Dumai and Sungai Pakning refineries together have supplied fuel to Sumatra and contributed to regional development in Riau. Crude processing, storage and marine loading create Zone 1 areas. This page explains what to look for in an Ex-proof smartphone for Dumai Refinery, Riau, 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
DeviceSmartphone
RouteSpecification
WhereDumai Refinery
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Dumai Refinery, Riau: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted 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 smartphone for Dumai Refinery, Riau
| 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 | Dumai Refinery, Riau: Refinery process units, Crude and product tank farms, Marine loading jetties | Classified by the site operator |
Product · Dumai Refinery
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 Dumai Refinery. 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 · Dumai Refinery, Riau
Dumai Refinery, Riau 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
- Pertamina
Classified areas to expect
- Refinery process units
- Crude and product tank farms
- Marine loading jetties
Local conditions · Dumai Refinery, Riau
What Dumai Refinery, Riau means for portable equipment
Two sites
Fortune Indonesia reports the unit has been operating since 1971 and spans Dumai and Sungai Pakning, with products including LPG, jet fuel, diesel and green coke.
Field notes · Dumai Refinery, Riau
More about Dumai Refinery, Riau that matters for portable equipment
Dumai Refinery, Riau: geography and layout
Dumai is on the coast of Riau Province in Sumatra and supplies the island with gasoline, aviation fuel, diesel, kerosene and LPG, so it is a regional distribution hub as well as a processing site.
Dumai Refinery, Riau: industry on the ground
Dumai's crude capacity is quoted at between roughly 127,000 and 170,000 barrels a day depending on the source, which places it among Indonesia's larger refineries.
Dumai Refinery, Riau: industry on the ground
Products include aviation turbine fuel, fuel oil, diesel, kerosene, solvents, LPG and green coke, so both flammable vapour and petroleum-coke dust may need consideration in area classification.
Dumai Refinery, Riau: who works there
All six of Indonesia's oil refineries are run by Pertamina, and together they supplied only about half of national fuel demand, which is why upgrade programmes cover the largest units including Dumai.
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 Dumai Refinery, Riau. A marking check at Dumai would compare the label with the zone, gas group and temperature class assigned to each area. LPG and fuel vapours are typically IIA or IIB, so IIC is conservative. The target marking is II 2 G Ex ib IIC T4, which has not been approved.
The route · specification
Specifying an Ex-proof smartphone for Dumai Refinery
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 · Dumai Refinery
Frequently asked questions
Can we buy an Ex-proof smartphone in Dumai Refinery today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does an Ex-proof smartphone in Dumai Refinery cost?
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
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 Dumai Refinery, Riau would use it?
Likely candidates are refinery process units, crude and product tank farms, marine loading jetties. 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.
Does green coke at Dumai create a dust hazard for electronics?
Green coke is a petroleum-coke product, and fine carbon dust can be combustible and conductive. Where it is handled, sites may classify combustible-dust zones, so ask the operator whether your handset needs a dust-rated device and how often it must be cleaned.
Is Dumai reachable for equipment shipments?
Dumai is a coastal port city in Riau Province, so sea freight is practical, and many visitors fly to Pekanbaru and continue by road. Plan for customs clearance in Indonesia and a site gate check, and confirm lead times with your freight agent.
Is Dumai's humidity a problem for a handset?
Equatorial heat and rain through the year affect battery performance and seals, so check the rated operating range and charging arrangements. Charge only in safe areas. Rain protection does not equal explosion protection. Confirm the permitted device list with the operator.
Related guides
Keep exploring
Other guides for Dumai Refinery, other places in Indonesia, and the pages behind them.
Explosion-Proof Mobile Phone in Dumai RefinerySame place, different guide
Rugged Mobile Phone in Dumai RefinerySame place, different guide
IECEx Mobile Phone in Dumai RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Dumai RefinerySame place, different guide
Hazardous Area Mobile Phone Distributor in Dumai RefinerySame place, different guide
Intrinsically Safe Mobile Phone in Dumai RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Bontang LNGElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in JakartaElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Cilacap RefineryElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Indonesia Offshore RigsElsewhere in Indonesia
Indonesia market guideCertification route and regulators
All guides for IndonesiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Dumai Refinery, Riau
Ask about the IS-04Z1 for Dumai Refinery, Riau, Indonesia
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 · Dumai Refinery, Riau
Launching Q4 2026
Planning for Dumai Refinery?
Name the site and the operator and we will send what is available before launch.