Supplementary Material to ProboStat™ Manual
2. Contents and assembly
2.1. Contents
One set of neck adapter and flange made of brass,
One alumina enclosing tube with outer diameter 80 mm, closed one end,
One enclosing quartz/metal ring with outer diameter 40 mm used to avoid gas leakage through the adapter,
One standard ProboStat™ sample support tube assembly with outer diameter 24 mm,
One alumina support plate / sample support tube adapter for sample stabilization and resting of the ring
electrode contact,
One spring load assembly consisting of one alumina support plate with central hole, three standard long
alumina bars with holes, one top triangle made of Pt10%Rh wire Ø 1 mm, and three soft springs,
One standard alumina inner multi-bore gas supply tube with 3.9 mm length silicone hose,
One standard outer alumina gas supply tube,
One thermocouple for disk sample, S-type, alumina,
One Pt/alumina guard-reference-ring electrode with 58 mm Ø ring.
One Pt/alumina inner “hand” electrode contact,
One Pt/alumina outer “hand” electrode contact with 20 mm Ø net,
One Pt net, Ø 20 mm,
Two Viton O-rings, 80×3 mm and standard 40×3 mm.
2.2. Assembly
The given example is related to Part 8.2.3 in the ProboStat™ manual: 2-point conductivity measurements on disk
sample with surface guard. For other methods please refer to the corresponding chapter in the ProboStat™ manual.
Step 1: Mount the multi-bore gas tube onto the inner PEEK gas socket.
Connections to the ProboStat™ base unit
