The DTS-HAZ digital thermostat is a microprocessor
based temperature control and power
connection kit. It is used for freeze protection
or process temperature maintenance of pipes
or tanks protected by heat tracing products.
This thermostat can be used with Constant
Wattage, Mineral Insulated or Self-Regulating
heating cables in Ordinary area or Class 1,
Division 2 and IECEx/ATEX Zone II hazardous
This unit is designed to provide local temperature
control and monitoring for heat traced
pipes or tanks across a variety of industries
and applications and will switch 30 amperes
The DTS-HAZ provides easy programming
of the temperature set point, high and low
temperature alarms, the deadband, the
temperature units, the soft start function and
the alarm state through the front panel push
buttons. LED lights are provided for indication
of power to the unit, heater power on
(load) and alarm status. A Fail Safe solid state
alarm is included for wiring to your building
management system to indicate alarm status.
This alarm may be set to open or close on all
alarm conditions including loss of power, high
or low temperature alarm and RTD failure. The
loss of power indication qualifies this unit to
be used to sense temperature and control heat
trace when used in fire protection systems.
Choose either the DC or the AC customer supplied
voltage alarm variation. The minimum
operating ambient temperature is -40°F
(-40°C). This unit has programmable high and
low temperature alarm set points from -80°F
(-62°C) to 1150°F (621°C).
The DTS-HAZ employs a Soft Start feature that
uses a proprietary software algorithm which
eliminates the inherent self-regulating in-rush
current, resulting in less nuisance tripping at
cold temperatures. For added flexibility, the
user may disable the soft start feature for nonheat
trace applications. The alarm contact may
be either normally open or normally closed.
A 100 Ohm platinum RTD is provided with a 3
foot (1 M) lead resulting in flexible mounting
options for the user.
Product Specifications and Features many be found in the catalog page, under the Resources Tab.
- Freeze Protection of Piping
- Process Temperature Maintenance of Piping
- Tank Freeze Protection
- Tank Process Temperature Maintenance
- Hazardous Areas