Capacity figures
Wikipedia quotes 1.24 million barrels a day, while Reliance's current site quotes 1.4 million; the operator's figure is used here.
Jamnagar India · Ex-proof
Ex-Proof Smartphone in Jamnagar India
A second large refinery is at nearby Vadinar and is owned by Nayara Energy, described as India's second-largest single-site refinery. Process units, tank farms and marine facilities create extensive Zone 1 and Zone 2 areas. If you are specifying an Ex-proof smartphone for Jamnagar, Gujarat, 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
DeviceSmartphone
RouteSpecification
WhereJamnagar India
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Jamnagar, Gujarat: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for Jamnagar, Gujarat
| 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 | Jamnagar, Gujarat: Petcoke gasification, Refinery off-gas cracker and petrochemical units, Crude and product tank farms | Classified by the site operator |
Product · Jamnagar India
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 Jamnagar India. 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 · Jamnagar, Gujarat
Jamnagar, Gujarat: 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
- Reliance Industries
Classified areas to expect
- Petcoke gasification
- Refinery off-gas cracker and petrochemical units
- Crude and product tank farms
- Marine loading facilities
Local conditions · Jamnagar, Gujarat
What Jamnagar, Gujarat means for portable equipment
Scale of site
Wikipedia gives the refinery's commissioning as July 1999 and the site as over 7,500 acres, with utilities, port infrastructure and worker housing. Reliance's own site lists a refinery off-gas cracker and the world's largest petcoke gasifier.
Field notes · Jamnagar, Gujarat
More about Jamnagar, Gujarat that matters for portable equipment
Jamnagar, Gujarat: industry on the ground
The Jamnagar refinery, owned by Reliance Industries, was commissioned in July 1999 at 668,000 barrels a day and now has an installed capacity of 1.24 million barrels a day, the largest of any single refinery.
Jamnagar, Gujarat: climate and equipment wear
Jamnagar has a hot semi-arid climate, with March to May extremely hot and humid and an erratic monsoon averaging about 500 millimetres, from under 100 in dry years to over 1,500.
Jamnagar, Gujarat: logistics and access
Polymer exports from the Jamnagar complex were moved through Port Pipavav by container, with volumes quadrupled to over 10,000 forty-foot containers in one year.
Jamnagar, Gujarat: climate and equipment wear
Tropical cyclones sometimes affect the area during the wet season, so operators plan for storm events.
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 Jamnagar, Gujarat. A marking check at Jamnagar would compare the device against each unit, since gasification, cracker and tank farm areas may involve different gases. Hydrogen-rich streams point to the most demanding gas group, while fuel storage can sit lower. The IS-04Z1 target marking is II 2 G Ex ib IIC T4.
The route · specification
Specifying an Ex-proof smartphone for Jamnagar India
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 · Jamnagar India
Frequently asked questions
Can we buy an Ex-proof smartphone in Jamnagar India 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 Jamnagar India 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 Jamnagar, Gujarat would use it?
Likely candidates are refinery process units, petcoke gasification, refinery off-gas cracker and petrochemical units, crude and product tank farms. 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.
Is Vadinar part of Jamnagar?
Vadinar is a separate coastal town in Devbhumi Dwarka district with its own refinery and crude oil terminals, about 47 kilometres from Jamnagar airport. Many contractors serve both sites, but access arrangements are separate.
What is the Jamnagar climate like for equipment?
It is hot semi-arid, with a very hot and humid season from March to May and an irregular monsoon. Cyclones occasionally occur, so look for sealed devices with a suitable temperature range.
Does one approval cover the whole Jamnagar complex?
Not automatically. The complex has many unit types, and each area has its own classification and permit regime. A device may be acceptable in one and not in another. Confirm with Reliance's site safety team which areas an approved handheld may be used in.
Related guides
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Certification statusWhat is in progress
Enquiry · Jamnagar, Gujarat
Ask about the IS-04Z1 for Jamnagar, Gujarat, India
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 · Jamnagar, Gujarat
Launching Q4 2026
Planning for Jamnagar India?
Name the site and the operator and we will send what is available before launch.