Thermon TraceNet TCM 18 - Manual (Page 87)

TYPICAL SOIL
CONTROLLED
TEMPERATURE
POWER
100%
20%
0%
10 27
DEGREES CELSIUS
Example D3 - Process Temperature Maintenance - Proportional Control With Solid
State Relay Output
The TCM18 features the option of proportional control for those applications where
close temperature control is required on process piping which may have varying
process temperature conditions. A typical heat traced piping application might be a
corn syrup viscosity control application. Due to the sensitivity of the syrup to color
degradation the syrup must be maintained below 90
◦ F (32 ◦ C). Typical heat tracing
design requirements are listed as follows:
Syrup Maintain Temperature: 80 ◦ F (27 ◦ C)
Heater Cable Type: Constant Wattage
Maximum Syrup Temperature: 90 ◦ F (32 ◦ C)
83 PN 50316_0514