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TE-4602
Tinytag Plus LAN Data Logger with Two Temperature & Relative Humidity Probes
(-25 to +85°C/0 to 100% RH) x 2
Power Information
This logger is a PoE (Power over Ethernet) device that is powered from its
Ethernet connection (a PoE injector is supplied).
In the event of a failure of the PoE supply, the logger has a battery back-up
that will keep it recording (communications will be suspended until power is
restored).
Back-up Battery Power
Battery Type
The logger will operate with other AA cell batteries but performance cannot be
guaranteed.
When the logger's back-up batteries start to run flat, the LED on the front of
the logger will flash red. If being used as part of a Tinytag Connect system, a
low battery warning will be displayed in the Tinytag Explorer Connect software.
The low battery warnings will start to show when the logger has approximately
two weeks of battery power remaining.
Before replacing batteries the logger must be disconnected from the LAN and
turned off.
Alkaline batteries should always be replaced in pairs.
Data stored in the logger will be retained after its batteries are replaced.
LED Flash Patterns
Ethernet Radio Receivers and LAN data loggers have two status LEDs; one to
show the status of the logger's Ethernet connection (yellow/blue) and the
second to show the status of the unit (green/red).
Action
LED
n/a
No Indicators
n/a
Red flash every 4
seconds
n/a
Green flash every 4
seconds
Press and briefly
Green indicator
hold the mute
shows for one
switch.
second. It then
briefly flashes green
then red.
Press and hold the
Red indicator shows
mute switch for 3
for one second.
seconds.
n/a
Yellow indicator on
constantly
n/a
Blue (flickering)
Note that the yellow and blue LEDs cannot be on at the same time. If the
blue LED is on (or flickering) then PoE power must be available.
2 x Duracell Industrial ID1500
AA (LR6) 1.5V (supplied)
Status/Operation
Device is powered off
The device is powered on and
has a problem.
Either:
a) Battery is low or
b) An alarm indicator is
signalled.
Check the nature of the
problem using Tinytag
Explorer.
The device is powered on, and
does not have any problems.
The device has been switched
on.
The device has been switched
off.
The device is being powered
from its Ethernet connection,
but no communications have
been established.
Ethernet communications are
established and on-going
www.tinytag.info
sales@tinytag.info
Alarms
LAN data loggers can be programmed with alarm limits to warn when a
property has gone out of specification.
Alarms
Alarm Delay
Alarm Indicators
Alarm Output
Tinytag Connect
When used as part of a Tinytag Connect system, an on-screen alarm
indication is also shown in the Tinytag Explorer Connect software.
E-mail warnings can be sent from the Tinytag Connect system when alarm
limits are breached, and these in turn can be used to send SMS messages
using third-party messaging services.
External Alarm Output
The alarm output has a signal line that changes state when alarms are active
and it can also supply power to an external device.
Connection Information
An output cable (part number CAB-0041, supplied separately) is used to
connect the logger to an external device.
The wiring connections are as follows:
Colour
Connection
Brown
Power
Green
Ground
White
Signal
Both the Power (brown) and Signal (white) outputs are protected by a 350mA
self-resetting fuse.
Signal Specification
This is an open-drain output that is pulled to Ground when an alarm is active
(otherwise it is open-circuit). This output will continue to change state, in the
event of an alarm, should the PoE supply to the logger fail.
Note that muting the internal alarm sounder, by pressing the mute
button on the front of the logger, will also turn off the output. If
required, the connection should be held on (latched) by external
equipment until it is explicitly acknowledged.
Power Specification
The power output is regulated at 11·5V ±0.5V from the PoE supply. The
output voltage will therefore turn off if the PoE supply fails.
Warnings
•
The alarm cable and connector must not be connected to any voltage
more than 50V away from earth potential, including mains voltages
•
Maximum current through any connection: 200mA
•
Maximum voltage on the Signal output (relative to Ground): 30V
2 fully programmable, latching alarms
(per channel)
1 second to 10 days
Visual (LED) & audible (sounder)
3-pin, powered output that changes state
when alarms are active (see below)
Issue 2 (27th October 2023) E&OE
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