Specifications

Instruction 19-9326

Monoxor III

4.5 CO Sensor Error Screen

When the CO channel is set up for Auto Zero (refer to Section 3.4.3), a

CO sensor error will occur if the detected Carbon Monoxide level is above

50 ppm during the warm-up period.

Note, however, that if the CO channel is set up for manual calibration,

the analyzer does not auto-zero the CO sensor during warm-up, and thus

does not generate a CO sensor error when the analyzer is turned ON in an

atmosphere containing a high background level of CO.

Make the following checks before replacing a suspected spent or defective

sensor:

1. Turn OFF the analyzer and turn it back ON in an area of fresh air.

2. If Step 1 doesn’t eliminate the error condition, replace the sensor

per Section 5.5.

4.6 Using the Backlight

The LCD can be read in dimly-lit areas by pressing the LIGHT button.

The backlight automatically turns OFF after 10 minutes of keyboard

inactivity, but can be turned OFF at any time by again pressing the

LIGHT button.

4.7 Using the Probe

A rigid stainless steel probe with handle, connected to a exible hose with

integral water-trap / lter can be used to draw a gas sample into the ana-

lyzer from the room, grilles, diffusers, and furnace ues.

The hose and probe assembly can be detached from the analyzer when the

operator desires to sample without the probe.