Climate
Hot, humid tropical conditions with a heavy rainy season.
Cilacap Refinery · Ex-proof
Ex-Proof Mobile Phone in Cilacap Refinery
Indonesia remained a net importer of petroleum products in 2024, at about 787 thousand barrels a day or 42 percent of consumption, which keeps pressure on large refineries such as Cilacap to run reliably. Crude distillation, cracking and storage areas are Zone 1 environments. If you are specifying an Ex-proof mobile phone for Cilacap Refinery, Central Java, 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 topicEx-proof
DeviceMobile Phone
RouteSpecification
WhereCilacap Refinery
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Cilacap Refinery, Central Java: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof mobile phone for Cilacap Refinery, Central Java
| 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 | Cilacap Refinery, Central Java: Refinery process units, Crude and product tank farms, Marine loading facilities | Classified by the site operator |
Product · Cilacap 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 Cilacap 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 · Cilacap Refinery, Central Java
Cilacap Refinery, Central Java: 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
- Pertamina
Classified areas to expect
- Refinery process units
- Crude and product tank farms
- Marine loading facilities
Local conditions · Cilacap Refinery, Central Java
What Cilacap Refinery, Central Java means for portable equipment
Scale
Fortune Indonesia lists Cilacap as the largest Pertamina refinery and reports it supplies about a third of national fuel demand.
Field notes · Cilacap Refinery, Central Java
More about Cilacap Refinery, Central Java that matters for portable equipment
Cilacap Refinery, Central Java: logistics and access
Cilacap's port is one of only a few on Java's southern coast able to handle ships of reasonable tonnage, sheltered by Nusakambangan island, and Tunggul Wulung Airport offers scheduled flights to Jakarta and Semarang.
Cilacap Refinery, Central Java: who works there
PT Kilang Pertamina Internasional, a Pertamina subsidiary, manages the refinery and has appointed outside consultants for asset integrity work, so contractor engagement typically runs through that company's procurement rules.
Cilacap Refinery, Central Java: rules and approvals
The asset programme includes a physical verification of the facility, an equipment criticality assessment and identification of safety critical elements, which shows asset registers and safety-critical equipment lists are being formalised on site.
Cilacap Refinery, Central Java: projects and investment
As part of modernisation, Pertamina is improving management of more than 85,000 maintainable assets at RU IV, starting with a maintenance master data project to classify every item correctly.
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 Cilacap Refinery, Central Java. A marking check at Cilacap would match the label to the zone, gas group and temperature class assigned to each unit or tank farm. Fuel vapours typically sit within IIA or IIB, so IIC is conservative. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, not approved.
The route · specification
Specifying an Ex-proof mobile phone for Cilacap 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 · Cilacap Refinery
Frequently asked questions
Can we buy an Ex-proof mobile phone in Cilacap Refinery 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 Cilacap 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 Cilacap Refinery, Central Java would use it?
Likely candidates are refinery process units, crude and product tank farms, marine loading 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.
What products at Cilacap create the main gas hazards?
The complex processes crude into gasoline, diesel, kerosene, aviation fuel and LPG, plus asphalt and petrochemicals. Flammable vapour from light products and pressurised LPG are the usual concerns, but the plant defines its zones, so ask for the current classification.
Why does the number of assets at Cilacap matter for safe equipment choice?
With more than 85,000 maintainable assets and an ongoing safety-critical-element review, the refinery is formalising what is classified and how it is maintained. That usually means device approvals and area classification records are checked closely, so bring documentation.
How wet does Cilacap get, and does it matter for a handset?
The climate is hot and humid with a heavy rainy season, so devices on tank farms and jetties meet rain often. Check sealing and charging arrangements. Rain protection is separate from explosion protection, so confirm the permitted device list with the operator.
Related guides
Keep exploring
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IECEx Mobile Phone in Cilacap RefinerySame place, different guide
Intrinsically Safe Mobile Phone in Cilacap RefinerySame place, different guide
ATEX and IECEx Mobile Phone in Cilacap RefinerySame place, different guide
Explosion-Proof Mobile Phone in Cilacap RefinerySame place, different guide
Rugged Mobile Phone Distributor in Cilacap RefinerySame place, different guide
Hazardous Area Mobile Phone Distributor in Cilacap RefinerySame place, different guide
ATEX and IECEx Mobile Phone Distributor in Dumai RefineryElsewhere in Indonesia
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ATEX and IECEx Mobile Phone Distributor in Indonesia Offshore RigsElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in BalikpapanElsewhere in Indonesia
Indonesia market guideCertification route and regulators
All guides for IndonesiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Cilacap Refinery, Central Java
Ask about the IS-04Z1 for Cilacap Refinery, Central Java, Indonesia
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Cilacap Refinery, Central Java
Launching Q4 2026
Planning for Cilacap Refinery?
Name the site and the operator and we will send what is available before launch.