VERDER CARBOLITE GERO E Series Installation, Operation And Maintenance Instructions page 15

4. Extended work tube guard
5. End adaptor
6. Fluted grip knob
Fitting the Optional Insulation Plugs and Radiation Shield
For optimum temperature uniformity, insulation plugs or radiation shields should be
placed in the work tube ends as shown below. With a standard work tube, the insulation
plug must be fitted as shown in figure A.
If a gas/vacuum end seal is fitted, either horizontally or vertically, the insulation plug
hooks onto the end seal hook; see figure B.
Alignment of radiation shields is similar to that of insulation plugs, see figure C.
If a metal work tube is being used in the furnace, ensure that it is earthed. See the
safety warning in section 5.4.
Figure A- Cross-section view showing standard
length work tube insulation plug fitted
Figure C- Cross-section view showing an extended length work tube with a radiation shield fitted
Figure B- Cross-section view showing extended
work tube insulation plug fitted
2.0 Installation
15