Ecom CN Manual page 6

Calibration Procedure (continued)
2. Swipe calibration magnet over the silver Cal Magnet sticker,
located left of the display screen (look under protective cover).
The calibration screen should appear with title Adjustment.
3. The analyzer is now in calibration mode.
Calibrate your analyzer:
1. Connect calibration gas to analyzer using one of the following 4
set-ups:
st
(1 option) Measure flow of pump at point of cal gas input with
flow meter. Connect calibration gas to analyzer through flow
meter and adjust flow to match pump draw.
nd
(2 option) Vented flow meter configuration. Ensure sensors are
not over or under pressurized by allowing small amount of gas
out of flow meter. This prevents air from entering system and
allows pump to control internal pressure within analyzer.
rd
(3 option) Use a 15-liter gas bag or higher to ensure enough gas
is present for analyzer to stabilize. A gas bag allows analyzer to
draw gas at the correct flow rate.
th
(4 option) Use on-demand regulator which uses pump draw to
establish flow. No need to measure and match flow from the
regulator, as pump is controlling the flow.
2. Flow calibration gas for 5 minutes.
3. After reading has stabilized for target sensor, press OK to display
input mode. Input concentration of calibration gas using
numbers on keypad. Press OK.
4. Disconnect calibration gas.
5. After calibrating target sensor, allow analyzer to flush with fresh
air for 5 minutes or until readings are below 10 ppm.
6. Press Escape/8 to return to main menu.
7. Press On/Off to turn off analyzer.