The Tele4
Battery life depends on regime. The Tele4 is designed to maximise battery life. More
frequent readings, weak signal and cold temperatures will shorten battery life. Battery
duration also dependent on the type of sensor used. Typical life is 4 years if powering a 2
wire, 4-20 mA sensor for 2 seconds and transmitting once per day. Only use Mel-Systems
approved batteries.
Intelligent solar regulator maximises battery life and solar charging potential
and includes pre charge conditioning if battery is in poor condition. There is
also temperature com pensation, meaning charge rate is adjusted according to
battery temperature, maximizing battery life.
Solar capability depends on orientation, sight of sun and location ( ie the
further from the equator the less power from the sun). In England, 10 minute
transmissions possible, in Scotland need a 2nd solar cell to achieve this.
Dimensions
185 × 337 mm base plate
The Tele4 is housed in a panel with the barriers. This panel needs to be in the safe area
and suitable sensors fitted in the field.
This augmented solution offers a sophisticated interface on site, with high
resolution, colour display of actual process (eg tank levels & graphics). It is used
where more complex calculations and commands are needed on site. Tele4AS
offers instant response to programmable inputs/events, triggering immediate
alarms and beacons Contact Mel-Systems to discover more about Tele4AS and
bespoke, application specific solutions.
Enclosure
400 × 300 mm wall mount panel with
hinged door.
ATEX Barrier(s)
Includes up to 4 ATEX barries,
such as MTL 554
Sensor Cabling
Consider inductance and capacitance of
cable as well as characteristics of sensor.
For SPS Ex (from Mel-Systems) with
LAPP12420 cable max. = 754m.
Tele4/S runs on 6-24Vdc. Allow 0.5 A. Ensure supply is well regulated.
For mains power 110/230 Vac, options are:
Tele4/SSM runs from an internal battery.
Tele4/S/SOL SYS runs from a 10 Watt solar power and lead acid
battery via an intelligent charge regulator.
Tele4/S/...ATEX for use in explosive atmospheres. For 110/230 Vac power supply.
Tele4AS (Augmented Solution)
/MPSU Mains (110 / 230 Vac)
power supply with backup
battery and regulator, housed
in a weatherproof enclosure
and a Tele4 fixed on base
plate (185 x 371 mm).
Provides 6 Vdc to Tele4
UPS 12 V Uninterruptable
power supply is a separate box
(262 × 188 mm). Mains 110 /
230 Vac in 12 Vdc maintained
output via battery backup.
Battery can typically support
50 transmissions. IP54
protection rating. Run cable
from UPS 12 V to Tele4.
