Mexican refining and fuel distribution run from the national refining system and the Pemex storage terminals to a growing group of private import terminals on both coasts. This page is for the HSE, maintenance and telecoms teams who need an explosion proof mobile phone for refining and fuels sites in Mexico, from a crude unit in Hidalgo to a gasoline terminal on the Gulf. The IS-04Z1 is designed for Zone 1 and Zone 21 duty and is in certification ahead of the Q4 2026 launch. The IS-04Z1 is designed around intrinsic safety rather than a flameproof enclosure.
Launching Q4 2026 · certification programme in progress
A refinery is a very large classified area that happens to include offices. Crude units, hydrotreaters, catalytic crackers, cokers, tank farms and loading racks all produce flammable vapour, and the permit system keeps the number of people in each zone under control. In Mexico that system has seven refineries under Pemex, including the newest at Dos Bocas, plus the terminals that move product to the regions: Pemex storage and dispatch terminals, port import terminals at Veracruz and Altamira, and inland storage supplied by pipeline, rail and truck. The fuel itself sets the gas group: gasoline and diesel vapour are typically Group IIA, refinery hydrogen is Group IIC, and sour streams add hydrogen sulphide.
Refinery work comes in two modes: steady-state rounds, and the loud, crowded weeks of a planned shutdown. A handset must suit both.
In a scheduled turnaround, contractor crews can outnumber permanent operators several times over. Enrolment, app restriction and wipe-on-return are what stop a borrowed fleet from drifting, and a unit tied to a named contractor makes the end-of-job count simple.
Petroleum coke and sulphur handling create combustible dust conditions that a gas-only handset does not cover. The Zone 21 design target is meant to keep one device valid from the crude unit to the coke pad.
A refinery tank farm or terminal tank dyke is a long walk in Gulf heat or Bajio sun, with little shade. IP68 sealing and a 4,000 mAh battery are designed to cover a full round without a trip back to a charger.
Tanker trucks arrive all day at product terminals. Drivers, loaders and inspectors need to scan, photograph and call without stepping outside the classified area, and a camera that can be switched off by policy keeps site photography under control.
Pemex sites follow Pemex requirements, private terminals follow their own, and ASEA and NOM-001-SEDE sit above both. Ask each operator's procurement and HSE teams which documents they want before a handset is allowed in.
A process operator walks pumps, exchangers and heater areas, spots a weeping gland and logs it. A photograph and a position go to the maintenance planner at once, rather than at the end of the shift when the paper round sheet is typed up.
Supervisors issue permits and check isolations across hundreds of workers. An enrolled handset carries the site directory, permits and daily progress forms, and unlocks only the apps the turnaround team has approved.
At a product terminal, a lone operator moves between the tank dyke, the pump house and the loading gantry. A single handset covers calls, photographs and a lone-worker check without leaving the classified area.
Yes. Gasoline and diesel vapour are normally Group IIA, while hydrogen is Group IIC. The ATEX marking target for the IS-04Z1 is II 2 G Ex ib IIC T4, designed to cover the more demanding group, subject to certification.
Wi-Fi on the terminal network and offline caching of forms and permits are the usual answer. Coverage depends on the site and the carrier, and the IS-04Z1 supports the standard Android connectivity options your IT team already manages.
Yes. Android Enterprise policy from your MDM console limits each profile to approved apps, so a turnaround contractor sees only what the site allows.
No. The device is pre-launch, with no certificate issued and no site approvals. The page describes where it is designed to fit.
Tell us the site, the zone and gas group, and roughly how many handsets. The SAMS team replies by email with the datasheet and the certification schedule for Mexico. The IS-04Z1 is pre-launch and certification is in progress, so there is no list price yet; indicative pricing is issued in writing against a stated quantity and site.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule for your market.
