Climate
Hot, humid equatorial conditions on the East Kalimantan coast.
Bontang LNG · Ex-proof
Ex-Proof Mobile Phone in Bontang LNG
Bontang sits on the Makassar Strait coast of East Kalimantan and has only 160 sq km of land, of which about 32 percent of its administrative area is dry land, so industrial sites sit close to the sea and town. Liquefaction, storage and loading create Zone 1 areas. This page explains what to look for in an Ex-proof mobile phone for Bontang LNG (Badak LNG), 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
WhereBontang LNG
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Bontang LNG (Badak LNG), 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.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof mobile phone for Bontang LNG (Badak LNG), 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 | Bontang LNG (Badak LNG), East Kalimantan: LNG liquefaction trains, LNG and LPG storage tanks, Gas pipelines | Classified by the site operator |
Product · Bontang LNG
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 Bontang LNG. 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 · Bontang LNG (Badak LNG), East Kalimantan
Bontang LNG (Badak LNG), 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 Badak NGL
Classified areas to expect
- LNG liquefaction trains
- LNG and LPG storage tanks
- Gas pipelines
- Loading jetties
Local conditions · Bontang LNG (Badak LNG), East Kalimantan
Conditions in Bontang LNG (Badak LNG), East Kalimantan that affect handheld equipment
History
The company was established in 1974 and the first train was completed on 5 July 1977.
Field notes · Bontang LNG (Badak LNG), East Kalimantan
More about Bontang LNG (Badak LNG), East Kalimantan that matters for portable equipment
Bontang LNG (Badak LNG), East Kalimantan: logistics and access
The city's only airport is the private PT Badak Bontang Airport owned by Badak NGL, and its principal seaport is Loktuan Port, which was being expanded to relieve congestion at Balikpapan.
Bontang LNG (Badak LNG), East Kalimantan: who works there
PT Badak LNG was established on 26 November 1974 as a joint venture with Pertamina, Total, Vico and Jilco, and it currently produces around 22 million tonnes of LNG a year, mostly exported to Japan.
Bontang LNG (Badak LNG), East Kalimantan: background
Bontang grew from a village into an industrial city after Badak LNG was founded in 1974 and Pupuk Kaltim three years later, and it became an autonomous city in 1999.
Bontang LNG (Badak LNG), East Kalimantan: climate and equipment wear
Bontang has a tropical rainforest climate with warm, stable temperatures and abundant rain, a drier period from about May to September and a wetter one from November to May.
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 Bontang LNG (Badak LNG), East Kalimantan. A marking check at Bontang would compare the label with zones assigned to trains, storage and jetties. Natural gas is typically IIA, with some process streams in other groups, so a reviewer reads the actual classification drawings. The target marking is II 2 G Ex ib IIC T4, not approved.
The route · specification
Specifying an Ex-proof mobile phone for Bontang LNG
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 · Bontang LNG
Frequently asked questions
Can we buy an Ex-proof mobile phone in Bontang LNG today?
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
What does an Ex-proof mobile phone in Bontang LNG 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 Bontang LNG (Badak LNG), East Kalimantan would use it?
Likely candidates are lng liquefaction trains, lng and lpg storage tanks, gas pipelines, 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.
What kinds of hazardous areas are found around Bontang?
The main ones are LNG and natural-gas processing areas, ammonia and urea plants, and coal handling with combustible dust. Each operator classifies its own plant, so ask Badak LNG, Pupuk Kaltim or the mine for its zone drawings before bringing handheld devices on site.
Does the humid climate matter for phones used at Bontang plants?
Yes. A tropical rainforest climate with frequent heavy rain, warm stable temperatures and sea air tends to stress seals, connectors and chargers. Typically users specify good ingress protection and keep spare batteries and cleaning routines, subject to the plant's rules.
Will a handset at Bontang need to cope with marine conditions?
Jetties and coastal areas expose devices to heat, humidity and salt air. Check the rated temperature range, seals and charging contacts. Charge only in safe areas. Water and dust protection does not replace explosion protection. Confirm site practice with the operator.
Related guides
Keep exploring
Related guides for Bontang LNG and for Indonesia.
Intrinsically Safe Mobile Phone in Bontang LNGSame place, different guide
IECEx Mobile Phone in Bontang LNGSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Bontang LNGSame place, different guide
Industrial Mobile Phone Distributor in Bontang LNGSame place, different guide
Explosion-Proof Mobile Phone in Bontang LNGSame place, different guide
Hazardous Area Mobile Phone Distributor in Bontang LNGSame place, different guide
ATEX and IECEx Mobile Phone Distributor in SurabayaElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in JakartaElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Indonesia MiningElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Dumai RefineryElsewhere in Indonesia
Indonesia market guideCertification route and regulators
All guides for IndonesiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Bontang LNG (Badak LNG), East Kalimantan
Ask about the IS-04Z1 for Bontang LNG (Badak LNG), 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 · Bontang LNG (Badak LNG), East Kalimantan
Launching Q4 2026
Planning for Bontang LNG?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.