Dimmer Habistat Dimming Thermostat

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Basic Guidelines for
Heating Vivaria

The heater should be placed
at one end of the vivarium in
a condition that does not heat
the whole of the enclosure. In
this way the temperature will
vary between the hot area near
the heater and the cooler areas
at ambient temperature. For
sophisticated temperature
management the thermostat
and heater can be fed via a
HabiStat Sun or Moon Switch.
This will give day/night and
seasonal synchronisation.

Reptiles are Ectotherms, that
is they heat themselves and
regulate their body temperature by means of the environment. They move in and out
of hot and cool areas to maintain their preferred temperature. It is therefore important
that the vivarium has a suitable temperature gradient for
the reptiles to behave naturally.

Size Matters
Heaters must be large enough
to heat the vivarium to the
required temperature. An
underrated heater will rarely
supply enough heat to reach
the temperature set on the
HabiStat. Too large a heater
will supply so much heat that
the HabiStat will only supply
a very small amount of power. This would lead to poor
temperature management and
may cause the heater to fail.

Hot air escaping through
the top of the cage

More than one heater may be
controlled by the HabiStat,
providing the total load of
600 watts is not exceeded.
The dimming thermostat will
not work properly with heaters of 40 watts ot less.
The ideal heaters to use with
this type of thermostat are
lamps. Other heaters may
also be controlled but light
emitting lamps can only
properly be controlled by
Dimming thermostats.

Heater
e.g. Basking Spotlamp

HabiStat
Heater will be controlled at
the set temperature but
only at the point of the
sensor

Put all the heaters, background and hot spot, at
one end of the cage.

Leave one end of the cage
unheated.

Areas warmer than the set
temperature.

Mains
Perches and hides that
allow thermoregulation.

Ventilation allowing
cool air in.
Areas cooler than the set
temperature.

Build up one end to allow
burrowing. The structure
must be a matrix of soft
and ridged materials
which allow tunnels to be
dug but not their subsequent collapse.

The sensor is best placed in a
direct line of sight with the heater.

Cool

Temperature gradient

Hot

Positioning the HabiStat sensor to obtain a thermal gradient.
…Using the HabiStat.

will be areas away from the
sensor that are cooler than the
set temperature.

The HabiStat will control the
heater at the level set on the dial
and detected at the sensor. The
function of the remote sensor is
to enable selection of the site at
which the temperature can be
sampled and controlled. The
range of the temperature gradient
will be proportional to the
distance between the sensor and
the heater and the ambient
temperature. If the HabiStat is
set at a temperature on the dial
but the sensor is placed away
from the heater there will be
areas near the heater that are
hotter than the set temperature.
Similarly, if the sensor is
placed near the heater, there

It should also be noted that as
hot air rises, setting the sensor
at the top of a vivarium will only
maintain the required temperature at that point. A vivarium
that houses ground dwelling
animals may be too cool if set up
in such a way. Place the sensor
where the animals are likely to
be, preferably in a direct line of
sight to the heater.
Some criteria for controlling the
temperature are:
•

Ensure that the placement of
the sensor is representative
of the temperature required,

use common sense in choosing the position.
•

•

Remember that the HabiStat
will be most accurate in the
middle of its range. Try to use
this, rather than the extremes,
to maintain accurate control
of temperature.
Although the dial is accurate
the temperature should
always be checked with a
thermometer.

This is proportional to the power
required. The 'Heat' neon will
reflect this by glowing brighter
and dimmer relative to the
amount of energy being used.
The heater is rarely switched
either fully on or completely off
and is therefore kept warm,
rather than alternately hot amd
cold. This extends the life of the
equipment as neither electrical
or thermal extreems are common.
…Finally

…Dimming Control
A dimming thermostat uses a very
accurate method of temperature
control. Like the name suggeste,
power is fed to the heater in a
continuously variable amount.

Text, Illustrations & Design © Euro Rep Ltd. December 1998

It is important to remember that
temperature control is critical to
the successful keeping of reptiles.
HabiStat thermostats use hi-tec
sophistication to give precise
control and peace of mind.

LIVINGEarth
E

L

E

C

T

R

O

N

I

C

S

( A division of Euro Rep Limited)
The Cottage in the Wall, Dawley Road, Hayes, Middlesex, UB3 1EF. U.K.
Tel: +44 (0)20 8573 4311 Fax: +44 (0)20 8561 1650
email: habistat@eurorep.co.uk

Guarantee
Thank you for buying this HabiStat electronic thermostat. Used in accordance with these instructions
this unit will give many years service. There are no user serviceable parts in this unit, so please do not
open it. Any tampering, including cutting any wire, may render the guarantee void. This thermostat is
guaranteed for five years from the date of purchase against faulty parts and workmanship. In the
unlikely event of failure, return it to Living Earth Electronics and ensure a receipt or proof of
purchase and details of the fault are included. We will aim to return the repaired or replaced unit in
the post within one working day. If returned within one year of purchase there will be no charge but
after that time a small administration and postage fee of five pounds (£5.00) will be levied. Please send
a Postal Order or Credit Card details in favour of Euro Rep Ltd. to cover this. No liability is accepted
other than for the repair or replacement of a faulty product. Statutory rights are not affected.

All three
leads are supplied
at a useful length.
This allows for the
maximum flexibility. As
the leads must not be cut,
they can be tidied with
cable ties and this will
accommodate any extra
wire. The long wires mean
virtually any cage can enjoy
the benefits of HabiStat
control. This brings
unparalleled choice,
convenience and
safety.

LIVINGEarth
E L E C T R O N I C S

76
72

24 26
22

68 20
64

80

18

28 84
30
88
32

ºC

HEAT

•
•
•

92

ºF

MAX 600W

HabiStat

•
•

DIMMING THERMOSTAT
MAINS HEATER SENSOR

•

3 AMP

•

Neon lights when heater is on.
Temperature dial calibrated
in Fahrenheit and Celsius.
A heater load of between 40
and 600 watts at 230 volts,
50 Hz AC.
A fully specified HabiStat
thermostat that meets all
current standards.
An electronic thermostat that
gradually increases and decreases power and is especially
suitable for use with light bulbs.
Suitable for use in vivaria,
aquaria, terraria, and horticulture. Or in photography and
home brewing where very
accurate control is required.
Waterproof, chemically
resistant probe

The three pin
socket is for connection
The fitted
to the heater. If wires have to
three pin plug is for
be threaded through small holes,
connection to the domestic
it is better to disconnect, thread
mains. It is supplied with a 3
and rewire the heater lead, if the
amp fuse which must be
plug is rewirable. Please make sure
replaced with one of the
the thermostat is disconnected from
same value if it blows.
the mains before any installation
work is carried out.
Text, Illustrations & Design © Euro Rep Ltd. December 1998



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