Specac ATMOS A2.5 User manual

ATMOS™ HEATING JACKET
QS-24650-1 1
Quick Start Guide
For use with the Atmos A2.5, A5, A10 & A20 Gas Cells
More detailed information can be found in the Instruction Manual on the USB stick.
Step 1 –Install the heating jacket
The metal portion of the Atmos heating jacket opens
to fit around the gas cell and is secured with a latch
at the front. The latch should be at the front with the
cable exiting the back of the gas cell. Velcro is then
used to secure the insulation around the gas cell.
Ensure the gas cell is secured to the spectrometer
using the lever-lock baseplate.
Step 2 –Connect Controller
Connect the heating jacket to the 4000-series
controller. The connector is secured by rotating the
outer portion of the connector clockwise. Connect the
controller to a mains outlet using the cable provided.
Latch
Velcro
Insulation
Fig 1. Atmos Heating Jacket
Heated Jacket
Connection
Mains lead
connection
Fig 2. Controller Connection

ATMOS™ HEATING JACKET
QS-24650-1 2
Step 3 –Set Temperature
Power on the controller using the switch on the front.
This displays two temperatures: current temperature
(top) in red and target temperature (bottom) in
green. Use the up and down buttons to adjust the
target temperature. The maximum is 210 °C.
Step 4 –Cooling Down
Warning: When heated above ambient temperatures, the cell must be cooled with a
continuous flow of purge gas to prevent contaminants depositing and damaging the
mirrors.
First Use Cleaning
It is recommended that the cell is heated to 200 °C for 2 hours with a flow of purge
gas. This will remove most of the adsorbed contaminants on the metal body of the
Atmos Gas Cell (refer to section 5 of the manual).
General Safety Warnings
Warning: During use some surfaces of the gas cell and heating jacket will get hot and
must not be touched.
Warning: The pressure of gas inside an enclosed cell may increase when heated. The
Atmos gas cells must not exceed its rated maximum pressure of 8.6 bar (125 psi).
A pressure relief valve or device (vented in a safe manner) is strongly recommended
and must be fitted when heating a sealed cell.
Actual Temperature
Target Temperature
Up/Down Buttons
Fig 3. Controller Display