Chemcassette ® Tapes; Optional Chemcam; Sample Filters - Honeywell Vertex M Technical Handbook

Vertex M 24-Point Continuous Monitor
TM
Legacy Detection System
Chemcassette tape
Sample outlet
CLO Detection System
In the Closed Loop Optics (CLO) detection system,
a reference detector monitors and controls the
intensity of the LED.
The microprocessor in the Chemcassette analyzer
module interprets the stain. It then calculates and
stores a precise concentration level in the module's
memory. Gas concentrations are reported in
parts-per-million (ppm), parts-per-billion (ppb) or
milligrams-per-cubic-meter (mg/m
Section 1 - Introduction
Reference detector
Surface mount LED
Light pipe
Detector
Inlet
Flow
).
3
1.6.3 Chemcassette
Chemcassette tapes are tagged with a radio frequency
®
identification (RFID) tag to automatically identify the
following:
• Serial number
• Gas family/ tape type
• Revision level
• Expiration date of the tape
• Chemcassette
The module uses a leader on the Chemcassette
to allow calibration of the optics every time a new tape
is installed. This feature can be bypassed.

1.6.4 Optional ChemCam

The ChemCam is a small video camera located
between the take-up reel and the optic head on the
module. It provides a means to observe alarm level
stains.

1.6.5 Sample Filters

The Chemcassette
filters in the sample flow system. Particulate filters
protect the internal precision orifice from dust particles.
An acid filter is used on the common line to the pumps.
Both types of filters are located in a removable filter
block on the side of the Chemcassette
internal particulate filter protects each proportional
valve.
1-15
Tapes
®
leader parameters
®
module includes three types of
®
®
tape
®
module. An