01-5800-7N0012/-
05/2019-EHT-432712
Notice
Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
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Overview of control equipment:
Mechanical thermostats
DTW
▪
Fixed set point mechanical thermostat with a 5 °C set point
▪
IP65 in coated cast aluminium enclosure
▪
SPDT switch rated 480 Vac, 22 A
BSTW II
▪
Adjustable set point mechanical thermostat with
-20 °C to 50 °C or 0 °C to 190 °C range
▪
IP65 rating in a GRP enclosure suitable for mounting off of
the pipe
▪
SPDT switch, load path rated 400 Vac,16 A / 230 Vac, 25 A
PBTW-200-E
▪
Adjustable set point mechanical thermostat with
-20 °C to 50 °C or 0 °C to 190 °C range
▪
IP 65 rating in a GRP enclosure suitable for mounting on pipe
▪
SPDT switch, load path rated 230 Vac, 25 A
Electronic controllers
DETU-300-CN
▪
Adjustable set point electronic thermostat with a
-4 °C to 600 °C range
▪
IP 65 rating in a GRP enclosure suitable for mounting off of
the pipe or on adjacent structure
▪
RS485 communications interface, Modbus RTU
▪
SPDT switch rating 230 Vac, 22 A/25 A/30 A @ 55 °C/50 °C/40 °C
ESTM-30
▪
Continuous monitoring technology for heat-tracing faults
▪
Internal diagnostics and monitoring of the heat tracing current
▪
Integral ground fault monitoring
▪
DPDT switch rated 30 A
▪
RS485 communications interface, Modbus RTU
▪
Bluetooth communication
Recommendations for selecting the appropriate control equipment:
Base your selection on the number and type of trace heating circuits to be installed, the type of control you need, and the area classification.
TABLE K: Control Equipment Selection Recommendations
Heating circuit type
Application
Control options
Suitable BARTEC control product
Quantity required
Self-regulating heating circuits on pipes
Freeze protection
Ambient-sensing
DTW (on panel)
1 per control panel
Self-regulating heating circuits on pipes
Temperature maintenance or
tight temperature control
Line-sensing
BSTW (off pipe , local only)
PBTW-200-E (on pipe, local only)
DETU-300-CN (off pipe, local and remote)
1 per circuit
Multiple self-regulating heating circuit(s)
for frost protection on tanks
Freeze protection or wide band
temperature control
Ambient-sensing
DTW (on panel)
1 per control panel
Single self-regulating heating circuit(s)
on temperature sensitive tanks
Temperature maintenance or
tight temperature control
Point-sensing
BSTW (off tank, local only)
DETU-300-CN (off tank, local and remote)
ESTM-20-E (local and remote indication)
1 per circuit
→ Example
▪
The application is temperature maintain for the pipe in a hazardous area. The ambient temperature is below the maintain temperature for
only a few months every year and the customer wants to conserve energy. No remote indication or communication is required.
appropriate control equipment = PBTW
-
200
-
E
Note: Since the PBTW
-
200
-
E includes the power connection enclosure the PBS
-
200
-
E kit (from Step 11) is not required.
