17
PPM UP
MONITOR
Operating Procedures for Atlas CO
2
Controller
with Low Oxygen Shutoff-Hardwire
1. Atlas CO
2
Controller with Low Oxygen Shutoff-Hardwire Controller Overview
If you have an optimal CO
2
level for your greenhouse garden the Atlas CO
2
Controller with Low
Oxygen Shutoff controller is designed to allow you to accurately reach your desired CO
2
levels.
It features a remote sensor with a 15ft cord that contains a CO
2
sensor, O
2
and a photocell. If the
oxygen level in your growing environment drops below 18% concentration, it will deactivate the
heater until is rises back to 19%.
2. Factory Settings
CO
2
PPM maximum allowed value: 1000 PPM
CO
2
PPM dead-band value: 100 PPM
CO
2
Sensor calibration value: 400 PPM
CO
2
Mode: PPM UP