Climate
Hot, humid equatorial conditions with rain through the year.
Balikpapan · Ex-proof
Ex-Proof Mobile Phone in Balikpapan
Pertamina took over the area's oil operations from Shell in 1965, and the refinery is now run by PT Kilang Pertamina Balikpapan, formed in 2019 to operate Refinery Unit V on an operation and maintenance basis. The RDMP upgrade is raising capacity from 260,000 towards 360,000 barrels per day, so process units and tank farms are Zone 1 areas. This page explains what to look for in an Ex-proof mobile phone for Balikpapan, East Kalimantan, 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
WhereBalikpapan
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Balikpapan, East Kalimantan: 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 · Ex-proof
Checklist: Ex-proof mobile phone for Balikpapan, East Kalimantan
| 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 | Balikpapan, East Kalimantan: Refinery process units, Residual fluid catalytic cracking unit, Crude and product storage | Classified by the site operator |
Product · Balikpapan
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 Balikpapan. 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 · Balikpapan, East Kalimantan
Balikpapan, East Kalimantan: 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
- PT Kilang Pertamina Balikpapan
Classified areas to expect
- Refinery process units
- Residual fluid catalytic cracking unit
- Crude and product storage
- Marine crude mooring and tanks
Local conditions · Balikpapan, East Kalimantan
Site conditions at Balikpapan, East Kalimantan: what wears and what limits equipment
RDMP upgrade
The Jakarta Post reported that the new residual fluid catalytic cracking unit was due to start in November 2025, with a naphtha unit following in mid-2026.
Field notes · Balikpapan, East Kalimantan
More about Balikpapan, East Kalimantan that matters for portable equipment
Balikpapan, East Kalimantan: rules and approvals
Indonesia's six large refineries are Cilacap, Balikpapan, Dumai, Musi, Balongan and Tuban, and the country imported about 787 thousand barrels a day of petroleum products in 2024, so reliability work at Balikpapan matters nationally.
Balikpapan, East Kalimantan: background
Oil drilling began at Balikpapan on 10 February 1897, a date now used as the city's anniversary, and the Dutch company BPM made the town its headquarters in 1907, so petroleum has shaped the place for well over a century.
Balikpapan, East Kalimantan: industry on the ground
After the upgrade the refinery can make fuel to Euro 5 standard, and it sits alongside Cilacap as one of Indonesia's two largest refineries, so new process units stand beside older ones in the same complex.
Balikpapan, East Kalimantan: projects and investment
The Balikpapan and Lawe-Lawe Refinery Development Master Plan raised crude capacity from 260 to 360 thousand barrels a day and added a 90 thousand barrel a day residue catalytic cracking unit.
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 Balikpapan, East Kalimantan. A marking check at Balikpapan would read the zone assigned to the cracking unit, tank area or marine mooring, then compare gas group and temperature class. Hydrocarbon vapours are usually within IIA or IIB, so IIC covers them conservatively. The IS-04Z1 target marking, II 2 G Ex ib IIC T4, is not approved.
The route · specification
Specifying an Ex-proof mobile phone for Balikpapan
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 · Balikpapan
Frequently asked questions
Can we buy an Ex-proof mobile phone in Balikpapan 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 mobile phone in Balikpapan 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 Balikpapan, East Kalimantan would use it?
Likely candidates are refinery process units, residual fluid catalytic cracking unit, crude and product storage, marine crude mooring and tanks. 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 Balikpapan only matter for refining, or are other hazardous industries nearby?
Oil and gas dominate the local story, with the refinery, fuel terminals and port tank storage. East Kalimantan also has coal and LNG activity regionally, but confirm with each operator which classified-area rules and device permits apply to its own facility.
Is Balikpapan easy to reach for equipment delivery?
Reasonably. The city has an international-class airport at Sepinggan and the Semayang seaport, and it is the main commercial centre of Kalimantan. Allow time for customs clearance and for any site gate checks on electronic devices entering the refinery.
How should a buyer think about heat and humidity at Balikpapan?
Equatorial heat and constant humidity affect battery life, seals and charging habits. Check the rated operating temperature range and keep charging in a safe area, away from classified zones. IP68 is useful against rain, but it is not explosion protection.
Related guides
Keep exploring
Other guides for Balikpapan, other places in Indonesia, and the pages behind them.
Industrial Mobile Phone Distributor in BalikpapanSame place, different guide
Rugged Mobile Phone in BalikpapanSame place, different guide
IECEx Mobile Phone in BalikpapanSame place, different guide
ATEX and IECEx Mobile Phone in BalikpapanSame place, different guide
Intrinsically Safe Mobile Phone in BalikpapanSame place, different guide
Hazardous Area Mobile Phone Distributor in BalikpapanSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Pekanbaru Oil FieldElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Batam ShipyardElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Cilacap RefineryElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Indonesia MiningElsewhere in Indonesia
Indonesia market guideCertification route and regulators
All guides for IndonesiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Balikpapan, East Kalimantan
Ask about the IS-04Z1 for Balikpapan, East Kalimantan, 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 · Balikpapan, East Kalimantan
Launching Q4 2026
Planning for Balikpapan?
Name the site and the operator and we will send what is available before launch.