Overview
Manuals
Timer Battery Role
Model & Safety
Replacement Checks
Features:
- Expo lists ETM-IS31-001 as the intrinsically safe battery pack for an electronic timer module.
- In the D758-ET manual, a discharged IS pack is a documented cause of an ET purge cycle failing.
- The OEM manual does not state battery voltage, capacity, packed weight or current lifecycle for this part.
Expo Technologies manual ML434 for the D758-ET MiniPurge identifies ETM-IS31-001 in its recommended-spares list as the IS battery pack for the electronic timer module. Its troubleshooting section notes that a discharged intrinsically safe battery pack can prevent an ET-model purge cycle from completing. The document distinguishes this pack from the separate electronic timer assembly.
It does not give electrical ratings or shipment measurements for the battery pack. Verify the exact part marking, ET-model system, timer assembly, control-unit configuration and current Expo documentation before replacement.
The ETM-IS31-001 may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ETM-IS31-001 documentation and reference links.
Important Notice: Confirm the complete catalog identity, hardware revision, receiving-system configuration and required document revision before replacement.
ML434 places ETM-IS31-001 in the recommended-spares list with the description ‘IS battery pack for electronic timer module.’ The same list separately identifies AGE-GE00-168 as the electronic timer assembly. Treat the battery pack and timer assembly as distinct items; confirm the requested scope and the marking on the installed component.
In its fault-finding table, the D758-ET manual lists a discharged intrinsically safe battery pack as a cause when a system begins purging but its cycles fail to complete. Follow the manual's full diagnostic sequence and approved site procedure rather than treating every timer or purge fault as a battery failure.
The model is documented in the D758-ET MiniPurge manual. Confirm that the installed Expo controller uses the ET electronic-timer configuration, then match ETM-IS31-001 to the parts list and the physical pack label. The manual does not establish interchangeability with an ES-model power supply, another battery revision, or a timer assembly.
The manual identifies the part as an IS battery pack but does not publish its cell chemistry, voltage, capacity, charging method or replacement procedure. Do not recharge, modify or substitute a generic battery based on the part name; use the current Expo instructions and the hazardous-area approval for the installed system.
Before maintenance, record the complete pack code, the D758-ET system identification, timer module marking and the observed fault indication. Expo's manual associates a discharged IS pack with incomplete ET purge cycles; it does not define a stand-alone voltage test or remaining-life threshold for the pack.
Use qualified personnel and the system's approved isolation, purge/pressurization and hazardous-area procedures. After an authorized replacement, follow the Expo manual's commissioning and test steps for the installed system and verify the timer cycle and system indications before returning the equipment to service.
