INSTRUCTIONALS
Residual Gas Analyzer
Need to identify products in an effluent reactor stream ? Performing a temperature programmed desorption or surface reaction? Build yourself a residual gas analyzer, on wheels! *Caution* The design below uses 110 V electricity, familiarize yourself with all necessary aspects of electrical work first. Reach out to a licensed electrician if in doubt.
Click images to enlarge:
FRONT VIEW
Front view of ExTorr Residual Gas Analyzer mounted on Pfeiffer HiCube Turbostation, backed by Uninterruptable Power Supply.
SIDE VIEW
Side view showing inlet and outlet ports for ambient pressure gas stream sampling.
CARTED SYSTEM
RGA System housed on a mobile cart to allow for rapid sample analysis on any unit in the lab space.
WIRING DIAGRAM
Wiring Diagram for PID temperature controller with single heating only output.
Temperature Controller
When an experiment calls for precise temperatures, a proportional-integral-derivative (PID) temperature controller is a great tool to have. Below is a design for building your own PID temperature controller, using only off the shelf parts. The design allows for a single controllable output, with a heat only functionality, using a type K thermocouple for temperature measurement. *Caution* The design below uses 110 V electricity, familiarize yourself with all necessary aspects of electrical work first. Reach out to a licensed electrician if in doubt.
Click images to enlarge:
FRONT VIEW
Front view of CN 7800 omega temperature controller panel mounted in project box with two fuses and a switch.
BACK VIEW
Back view showing three prong female receptacle, panel mounted grommet for 110 V line in and type K thermocouple jack (yellow).
INSIDE VIEW
Inside wiring of PID temperature controller. Solid State Relay (SSR, white) shown in middle attached to finned heat exchanger.
PARTS DIAGRAM
Exploded Parts Diagram for Residual Gas Analyzer.
Miniature Batch Reactor
The mini-kickass 9000 provides a simple and cost effective design for a miniature batch reactor, made using only off-the-shelf parts. The reactor consists of a miniature glass vial (5 mL), sealed with a rubber septum and plastic cap, that can be magnetically stirred. The design avoids the use of silicone oil or sand, relying on a mechanically embedded thermocouple to provide accurate and rapid temperature control (coupled with PID temperature controller above). Heating is accomplished using an electrical band heater clamped around an aluminum block, all encased within an insulated environment, providing rapid and accurate heating rates. *Caution* Always be aware of any of the risks associated with chemical reagents and the reaction to be conducted in such a design, as well as chemical compatibility with any of the wetted parts.
Click images to enlarge:
CUTOUT
Profile view of mini-kickass 9000 design, illustrating the various components embedded within the insulated shell.
ASSEMBLED
Fully assembled design with type K thermocouple and glass reactor in place. Black and white wires for power to electrical band heater.
TOP VIEW
Top view of machined aluminum block.
SIDE VIEW
Side view of machined aluminum block.
