phx42User MaterialsTech TipsOn this pageTech Tips Published: 2023-05-09 Revised: 2026-05-28 5/22/2026 – phx42 Charger Care 11/20/2024 – phx42 Best Practice: Storage and Delayed Use 3/5/2024 – Ignoring Prompts Can Lead to Contamination 9/12/2023 – Charger Care 1/25/2023 – Probe Integrity Testing 12/5/2022 – Probe Testing Adapter 12/2/2022 – phx42 Fill Port Types 6/28/2022 – Self-check 10/14/2021 – Pump Clamp 9/19/2020 – phx42 .22-micron Filters 7/28/2019 – Fill Adapter Maintenance 9/24/2018 – phx42 Backpack Modification 1/15/2018 – Technical Update Part 3 4/27/2017 – Technical Update Part 2 4/27/2017 – Technical Update Part 1 Related articles Manual Documentation Probe Repair Procedures Exporting Reports EPA Method 21/phx42 Feature Comparison phx42 Bluetooth SPP to BLE Upgrade