Description
Core Product Summary (Brand / Model / Key Attributes)
The EXPO ETM-IS31-001 is a Revision 2 intrinsically safe battery pack for an EXPO Electronic Timer Module. It is a hazardous-area battery module used within EXPO purge and pressurization equipment, including the D779/ET MiniPurge ML433 system.
The ETM-IS31-001 is marked for Ex ia IIC T6 Ga gas-atmosphere protection and Ex iaD 20 T85°C dust-atmosphere protection. It is certified as part of ATEX certificate FM10ATEX0003X and IECEx certificate IECEx FME10.0001X. The module uses an aluminium housing and is specified for an ambient temperature range of −20 °C to +60 °C.
Key Technical Specifications
| Attribute | Value |
|---|---|
| Brand | EXPO Technologies |
| Model | ETM-IS31-001 |
| Product type | Intrinsically safe battery pack |
| Revision | Revision 2 |
| Application | Power supply for EXPO Electronic Timer Module |
| Associated system | D779/ET MiniPurge ML433 |
| Gas-atmosphere marking | Ex ia IIC T6 Ga |
| Dust-atmosphere marking | Ex iaD 20 T85°C |
| Ambient temperature range | −20 °C to +60 °C |
| Housing material | Aluminium |
| ATEX certificate | FM10ATEX0003X |
| IECEx certificate | IECEx FME10.0001X |
| Equipment family covered by certificate | Electronic Timer Module, type reference ETM-IS**-*** |
| Hazardous-location classification | Intrinsically safe for Class I, II, and III, Division 1, Groups A–G |
| Temperature classification | T6 at 44 °C ambient; T5 at 59 °C ambient; T4 at 60 °C ambient |
| Minimum enclosure protection | IP20, metallic enclosure |
Detailed Product Overview
The EXPO ETM-IS31-001 is the Revision 2 battery pack used with an EXPO Electronic Timer Module in hazardous-area purge and pressurization applications. Its role is to provide the battery supply required by the timer function within the associated EXPO MiniPurge equipment, including the D779/ET MiniPurge ML433 configuration.
The module is an intrinsically safe component rather than a general-purpose industrial battery. Its certification marking, Ex ia IIC T6 Ga / Ex iaD 20 T85°C, defines the explosion-protection concept, gas group, temperature class, and dust-protection level for which the equipment is approved. The associated certificates cover the Electronic Timer Module family identified as ETM-IS**-***, including the ETM-IS31-001 battery pack.
The ETM-IS31-001 is housed in an aluminium enclosure and is rated for operation from −20 °C to +60 °C. The certificate documentation specifies that the equipment is intrinsically safe for Class I, II, and III, Division 1 hazardous locations and identifies temperature classifications of T6, T5, and T4 at 44 °C, 59 °C, and 60 °C respectively.
Because this is certified hazardous-area equipment, replacement must preserve the certified system configuration. The battery pack should only be installed in the EXPO Electronic Timer Module or MiniPurge assembly for which it is approved, using the applicable system manual, certificate schedule, and site hazardous-area installation procedures. Battery chemistry, replacement procedure, charging restrictions, and permitted locations should be governed by the EXPO system documentation rather than inferred from the module marking alone.
ETM-IS31-001
ETM-IS31-001
Engineering Selection Highlights
- ETM-IS31-001 is a Revision 2 intrinsically safe battery pack, so it should be treated as certified hazardous-area equipment rather than as a standard control-panel battery.
- It powers an EXPO Electronic Timer Module, making compatibility with the associated EXPO timer and MiniPurge assembly the primary selection requirement.
- The module is associated with the D779/ET MiniPurge ML433 system, so system documentation should be used to confirm the correct battery-pack position and wiring.
- Its Ex ia IIC T6 Ga and Ex iaD 20 T85°C markings define the hazardous-area suitability, and the installed location must remain within the certified temperature and classification limits.
- The certified ambient range is −20 °C to +60 °C, which must be checked against the enclosure and process environment.
- The aluminium housing and IP20 minimum enclosure rating mean the battery pack is not itself a general-purpose outdoor enclosure; the host equipment or enclosure determines the installed ingress protection.
- ATEX certificate FM10ATEX0003X and IECEx certificate IECEx FME10.0001X apply to the certified Electronic Timer Module family, so certificate conditions and system manuals govern installation and replacement.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Battery-pack function | EXPO Electronic Timer Module | The ETM-IS31-001 supplies the timer battery function. |
| Associated purge system | D779/ET MiniPurge ML433 | Confirm the installed MiniPurge configuration before replacement. |
| Certification family | Electronic Timer Module, type reference ETM-IS**-*** | The certificate covers the ETM-IS family, including this battery pack. |
| Gas atmosphere | Ex ia IIC T6 Ga | Use only where the installed hazardous-area classification and temperature conditions are compatible. |
| Dust atmosphere | Ex iaD 20 T85°C | Verify dust-zone suitability and ambient temperature against the installation. |
| Ambient temperature | −20 °C to +60 °C | Do not install outside the certified temperature range. |
| Enclosure | Aluminium housing; minimum IP20 | The host enclosure or system determines the final ingress-protection level. |
| Certification conditions | ATEX FM10ATEX0003X and IECEx FME10.0001X | Follow the certificate schedule and applicable system manual. |
Dimensions, Mounting & Connection Notes
- The ETM-IS31-001 uses an aluminium housing.
- The certified Electronic Timer Module equipment requires a metallic enclosure providing a minimum IP20 protection level.
- The module is specified for an ambient temperature range of −20 °C to +60 °C.
- Installation, electrical connection, battery replacement, and disposal must follow the applicable EXPO MiniPurge system manual and hazardous-area certificate conditions.
- Do not substitute an uncertified battery pack or alter the certified timer-module assembly.
FAQ
What is the EXPO ETM-IS31-001?
It is a Revision 2 intrinsically safe battery pack for an EXPO Electronic Timer Module used in hazardous-area purge and pressurization equipment.
Which EXPO system uses the ETM-IS31-001?
It is identified as part of the D779/ET MiniPurge ML433 system.
What hazardous-area protection does it provide?
The module is marked Ex ia IIC T6 Ga for gas atmospheres and Ex iaD 20 T85°C for dust atmospheres.
What certifications apply?
The ETM-IS31-001 is certified as part of ATEX certificate FM10ATEX0003X and IECEx certificate IECEx FME10.0001X.
What is its permitted ambient temperature range?
The battery pack is specified for −20 °C to +60 °C.
What housing does it use?
It uses an aluminium housing.
Can it be replaced with a standard battery pack?
No. It is certified intrinsically safe equipment and must be replaced in accordance with the applicable EXPO system manual and hazardous-area certificate conditions.
Verification & Troubleshooting Notes
- Confirm the complete module marking, including , revision, hazardous-area marking, serial number, and certificate references.
- Verify that the installed EXPO timer module and MiniPurge system documentation permit the installed battery-pack revision.
- Do not install the battery pack outside its certified ambient range or in an enclosure that does not satisfy the applicable hazardous-area requirements.
- If the electronic timer does not retain operation or fails to start, distinguish between battery condition, timer-module condition, wiring, and purge-system control causes.
- Do not open, recharge, short-circuit, or modify the battery pack unless the EXPO system manual explicitly permits the action.
- Follow the site’s hazardous-area maintenance, permit-to-work, and battery disposal procedures when removing or replacing the module.
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