The 7000-854-TE is now obsolete.
Your instrument may require a one-time conversion kit.
Used with a standard IQ:
If you have a WDG-IVC with RTD combustibles detector, no conversion kit is required.
If you have a WDG-IVCM/HPIICM with RTD combustibles detector, the conversion kit will be 7002-441-TE.
If you have a WDG-IVC/HPIIC with Hot-wire (catalytic bead) detector, the conversion kit will be 7002-439-TE.
If you have a WDG-IVCM/HPIICM with Hot-wire (catalytic bead) detector, the conversion kit will be 7002-440-TE.
After the upgrade is made, the 7000-854-TE will be replaced with 7002-445-TE.
If you need further clarification, please click on this link which will take you step-by-step to the replacement part you need: Replacement Part
Please feel free to contact our AMETEK PI service team with any questions here: Aftermarket (ametekpi.com)