USER MANUAL :
DOCUMENT NAME
of a wake up, the 'Max Start Time' timer will be started. Should the connection to the server take longer than this preset
time, the connection will be aborted and the logger will be put back to sleep. For powered loggers, the modem will be
powered down and the process to connect will be restarted from scratch until a connection is established.
There are two other timers that ensure the communications are functioning
logger communicates with the server, there is continuous communications between the two. Should this stall for a period
longer than this timeout value (in seconds), the logger will abort the connection and g
establish a connection (powered).
The second is the 'Heartbeat Time'.
This is for powered loggers only
interval set by this timer. The logger will respond to the ping and
not receive two heartbeat pings in a row, it will assume there has been a failure in the communications and abort the
connection and go back to sleep (battery) or re
This logger can operate in one of three power configurations.
Mode
Mains
Battery
Dual
In this mode the logger
allowing for the streaming of
In this mode, the logger will
its recorded data to a remote database
External 12V supply
automatically switch to battery mode should the power fail.
Each power mode can be selected from the
which the logger will switch from Mains to Battery mode is defined by the 'Power Threshold' voltage. This should only
under special circumstances be adjusted from 4.75V.
Fitted onto each logger is an onboard 24V 30mA power generator. The Cumulus Logger can generate a stable 24V output at
a maximum of 30mA, allowing for the powering of an external piece of equipment or current loop device eliminating the
need for a secondary power supply. This option will also function under battery operation.
Operation Modes are as follows and are selected in the 'Generator Modes' options
To expand on the Loop Power options - when using
each time that interface is activated to read. Depending on the device you are powering, there is a preset amount of time it
will need to be powered before it has 'settled' and the reading
device to device and can be adjusted using the 'Generator Delay' time.
Mode
Off
On
Loop Power
In this mode the
In this mode the generator is permanently on.
Under Loop Power control, the generator will be turned on for a
specific period of time (Generator Delay) before the 4
interface is read.
MANUAL : CDS546 NIMBUS LOOP LOGGER
NAME
CLASSIFICATION
DATE
PAGE
of a wake up, the 'Max Start Time' timer will be started. Should the connection to the server take longer than this preset
the logger will be put back to sleep. For powered loggers, the modem will be
powered down and the process to connect will be restarted from scratch until a connection is established.
There are two other timers that ensure the communications are functioning correctly. First is the 'Comms Timeout'. When a
logger communicates with the server, there is continuous communications between the two. Should this stall for a period
longer than this timeout value (in seconds), the logger will abort the connection and go back to sleep (battery) or re
This is for powered loggers only
. The server will continuously ping the logger at the
interval set by this timer. The logger will respond to the ping and the two will remain in communications. Should the logger
not receive two heartbeat pings in a row, it will assume there has been a failure in the communications and abort the
connection and go back to sleep (battery) or re-establish a connection (powered).
can operate in one of three power configurations.
Notes
In this mode the logger will be continuously connected to the server
allowing for the streaming of real time data.
In this mode, the logger will 'wakeup' (normally 6 hourly) and upload
its recorded data to a remote database and then go to sleep.
External 12V supply + Battery. In this mode the logger will
automatically switch to battery mode should the power fail.
can be selected from the items under 'Power Mode'. When a logger is in Dual Mode, the voltage point at
which the logger will switch from Mains to Battery mode is defined by the 'Power Threshold' voltage. This should only
sted from 4.75V.
Fitted onto each logger is an onboard 24V 30mA power generator. The Cumulus Logger can generate a stable 24V output at
allowing for the powering of an external piece of equipment or current loop device eliminating the
ed for a secondary power supply. This option will also function under battery operation.
Operation Modes are as follows and are selected in the 'Generator Modes' options.
when using the generator to power a 4-20mA loop device, the power is turned on
each time that interface is activated to read. Depending on the device you are powering, there is a preset amount of time it
will need to be powered before it has 'settled' and the reading has become stable enough to sample. This varies from
device to device and can be adjusted using the 'Generator Delay' time.
Notes
In this mode the generator is permanently off.
In this mode the generator is permanently on.
Under Loop Power control, the generator will be turned on for a
specific period of time (Generator Delay) before the 4
interface is read.
PAGE
of a wake up, the 'Max Start Time' timer will be started. Should the connection to the server take longer than this preset
the logger will be put back to sleep. For powered loggers, the modem will be
powered down and the process to connect will be restarted from scratch until a connection is established.
correctly. First is the 'Comms Timeout'. When a
logger communicates with the server, there is continuous communications between the two. Should this stall for a period
o back to sleep (battery) or re-
. The server will continuously ping the logger at the
the two will remain in communications. Should the logger
not receive two heartbeat pings in a row, it will assume there has been a failure in the communications and abort the
be continuously connected to the server
'wakeup' (normally 6 hourly) and upload
In this mode the logger will
items under 'Power Mode'. When a logger is in Dual Mode, the voltage point at
which the logger will switch from Mains to Battery mode is defined by the 'Power Threshold' voltage. This should only
Fitted onto each logger is an onboard 24V 30mA power generator. The Cumulus Logger can generate a stable 24V output at
allowing for the powering of an external piece of equipment or current loop device eliminating the
20mA loop device, the power is turned on
each time that interface is activated to read. Depending on the device you are powering, there is a preset amount of time it
has become stable enough to sample. This varies from
Under Loop Power control, the generator will be turned on for a
specific period of time (Generator Delay) before the 4-20mA
