Design Guide for Hazardous / Industrial
Self-regulating trace heating systems
21-5400-7D0001/-
05/2023-EHT-466854
Notice Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
Overview of control equipment:
PBTW-200-E
Adjustable set point mechanical thermostat with
-20 °C to 50 °C or 0 °C to 190 °C range
IP 66 rating in a GRP enclosure suitable for mounting on pipe
SPDT switch
PBTC-200-E
Adjustable set point electronic thermostat with a
0 °C to 500 °C range
IP 66 rating in a GRP enclosure suitable for mounting on
pipe
RS485 communications interface. Modbus RTU
SPDT switch
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
Suitable BARTEC control product
Self-regulating heating circuits on pipes
Self-regulating heating circuits on pipes
Temperature maintenance or
tight temperature control
PBTW-200-E (on pipe, local only)
Multiple self-regulating heating circuit(s)
for frost protection on tanks
Freeze protection or wide band
temperature control
Line-sensing
on a reference pipe
PBTC-200-E (on pipe, local only)
Single self-regulating heating circuit(s)
on temperature sensitive tanks
Temperature maintenance or
tight temperature control
PBTW (on panel or off tank, local only)
PBTC-200-E (on pipe, local only)
→ 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.
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