Honeywell ACM 150 Manual To Installation, Operation, And Maintenance page 45

ACM 150
Vacuum sampling system
The ACM 150 monitor samples up to 40 areas, which are scanned and analyzed in
sequence, as described in Air sampling system. The main assemblies are:
Bypass Venturi Pump
Gas Cell Venturi Pump
Boost Pump (mechanical)
Sample Valve Assembly
Cycle Valve Assembly
Backup Exhaust Pump
Available outputs
The following output relays are dry contact, double-pole/double-throw (DPDT), rated
for 3 amps @ 30 VDC
Programmable Output
Relays (80)
Additional Output Relays (6)
Data interface and protocol
Network
Protocols
Optional Driver
Other communication networks are available. Contact Honeywell Analytics for more
information.
Draws flow through sample tubes and bypasses the
flow to exhaust to provide a constant flow of fresh
sample to the monitor
Evacuates the sampled air from the gas cell after it is
analyzed
Fills the evacuated gas cell with fresh sampled air for
each analysis cycle
Valves installed in the 10-port sample manifolds
(up to 40) that switch in sequence as the ACM 150
monitor scans the sample areas
Group of 6 valves that control the flow through the
gas cell
Normally idle, this mechanical pump backs up the
venturi pumps to provide operation in the absence of
CDA
Default programmable relay settings
• Relays 1-40 activate for any gas at the Alarm 1
level set point for areas 1-40
• Relays 41-80 activate for any gas at the Alarm 2
level set point for areas 41-80
The default settings for each relay may be changed by
the user to activate
• At the Alarm 1 or Alarm 2 level
• For any gas, for all gases or any selected group of
gases
• At any area, all areas or any selected group of
areas
• Power fail
• Watchdog timer
• Manual Mode
• General malfunction
• General warning
• General alarm
Ethernet
TCP/IP webserver
OPC (OLE for Process Control)
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