protection £284.00 +VAT
protection £345.00 +VAT
H175 heater controller is a digitally operated
controller capable of switching up to 30 Amps (a single
phase 6 Kilowatt heater). It is supplied as standard
with a 400 mm long temperature probe that is totally encased
in solid PTFE, with 2 metres of PTFE sheathed cable.
The controller's digital display shows
the solution's temperature, and also allows the required
temperature to be set. Maximum and minimum temperatures may
be programmed, and password protected if necessary. The
controller may also be used in "cooling" rather than
"heating" mode, for refrigeration and cooling applications.
We supply a lot of these controllers as
"back up" units to existing controllers, as many insurance
companies now insist on having a second level of safety on
heated tanks. In this case, the controller's relay is wired
in series with either the existing control circuit or the
heater's power supply. This gives backup over-temperature
and low-level safety.
For larger heaters, multiple heaters,
or any other type of control system, we can give you a quote
for a custom built unit. Just call or email us - or simply
use the form on the "Enquiries" page.
NOTE these controllers must be
connected to a mains supply that incorporates a fuse or
circuit breaker rated to suit the heater, as well as an
earth leakage protection device. We can fit the
controller with an RCD or RCBO (residual current circuit breaker)
to suit your heater as an option.
A low solution level protection option is
available which will switch off the heater
in the event of the tank level dropping. This consists of a
pressure switch (fitted inside the controller's enclosure)
connected, via a PVC hose, to a polypropylene tube mounted
in the tank (as shown on the left). When the liquid drops
below the tube, the pressure switch opens, and the heater is
disabled. The tube supplies as standard is 400 mm long, but
can be adjusted up or down within the supplied bracket, or
cut to length.
where a polypropylene dip tube is not suitable, we can
supply other materials, such as PVC, stainless steel,