Number of connections
The AK-SM 350 is a central monitoring unit that can monitor up to
65 readings. They can originate from:
- up to 16 direct connections from sensors or switch functions
- signals from separate refrigeration controllers, EKC and AK types,
via data communication
- signals from connections on the expansion module m2+ and
from gas detectors. These readings are also transferred via data
communication.
• signals from wireless temperature readings
Alarms
The unit advises you of an alarm in several ways:
• With an audio signal
• By ashing the LED on the front
• By showing an alarm symbol on the display
• In addition to this, the unit can route alarms to external alarm
destinations. This alarm routing can be categorised into priorities
and times for different alarm destinations at different times of
the day.
Alarms from freestanding refrigeration controllers received via
data communication are forwarded to the monitoring unit. The
warnings are then generated as described above.
Data collection
All defined points can be recorded and saved with the set time
intervals.
The values can be viewed on the display and retrieved by con-
necting a printer or connecting a PC or modem.
Signals
The following types of signals can be received:
• Temperature readings
• Switch functions
• Pulse signal for output reading
• Voltage signal
• Current signal
• Signals from refrigeration controllers types EKC and AK.
• Signals for P0 optimization
• Day/night override.
Gas detector
One or more of the measuring points can be a gas detector. The
gas detector is connected to the data communication, after which
it will send the measured value to the monitoring unit. If the
threshold value set in the monitoring unit is exceeded an alarm is
generated.
For further information on the gas detector, please see document
RD7HA.
Printer
The connection of a printer means that the data collected can be
printed out. The printer must be an HP PCL-3 compatible printer.
The print-out may contain:
• The measuring points’ actual values
• Graphic readout of temperature sequences
• Alarm history
External connections
• Modem
A modem can be connected so that the unit can be in contact
with external alarm destinations or service companies.
The modem can be a standard telephone modem or a GSM
modem for mobile telephony.
• Ethernet
The link to external alarm destinations and service companies
can take place via a TCP/IP network.
• PC
A PC can be connected to the unit. The PC may be stationary,
portable or handheld. Setups and/or alarm receipt can be per-
formed via an operating program.
• Service companies
Users of the following programs can receive alarm calls from the
unit.
AK series software (operating and setting)
AKM type software (only receiving alarms and logging data)
Security
Important settings are password-protected.
When logging on or out from external links, an additional security
check is required to verify the connection. This will be carried out
during the setup.
Battery Backup
The unit contains a battery, so that the clock function is still main-
tained if there is a power failure.
The recording of temperatures will resume when the power
comes back on.
All setups will be retained during a power failure.
Overview
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