Delta OHM D35ED-ALM, Manual

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2 SYSTEM COMPONENTS
The system consists of the following components:
• HD35AP… base unit
• HD35RE repeater
• HD35ED… series of data loggers
• HD35ED-ALM remote alarm device
HD35AP… B
ASE
U
NIT
This device acts as an interface between the network data loggers that are positioned in the
measurement sites, and the PC. It communicates wireless with the remote data loggers.
Fig. 2.1: base unit placed between data loggers and PC
HD35RE R
EPEATER
This device is able to act as a bridge between the base unit HD35AP… and the remote data
loggers HD35ED…, allowing the communication distance between data loggers and base unit to
be increased. Several repeaters in cascade can be used.
Fig. 2.2: repeater placed between data loggers and base unit
The typical transmitting range between two devices in direct communication is 300 m in open
field.
The range can be reduced in the presence of obstacles or adverse atmospheric conditions
.
HD35ED… D
ATA LOGGERS
Remote devices with measurement probes. They are installed in the locations to be monitored.
They acquire measurements, store them in the internal memory and send them automatically
to the base unit at regular intervals or on request of the user. Versions with or without LCD
display are available.
HD35ED-ALM R
EMOTE ALARM DEVICE
Device equipped with relay outputs that allows to activate, in case of an alarm, signaling de-
vices (sirens, flashing lights…) or actuators.
Base unit
Datalogger
PC
Base unit
Datalogger
PC
Repeater