Controller Operation
9.7 Proportional Band 9
9-9
Table 4. Proportional Band — Fluid Table
Fluid Temperature Heater Setting
Proportional
Band
Stability
Water 30.0 °C Low 0.04 °C ±0.0004 °C
Water 60.0 °C Low 0.04 °C ±0.001 °C
Eth-Gly 50% 35.0 °C Low 0.05 °C ±0.0005 °C
Eth-Gly 50% 60.0 °C Low 0.05 °C ±0.001 °C
Eth-Gly 50% 100.0 °C High 0.4 °C ±0.007 °C
Oil 35.0 °C Low 0.1 °C ±0.003 °C
Oil 60.0 °C Low 0.2 °C ±0.002 °C
Oil 100 °C Low 0.2 °C ±0.003 °C
The proportional band adjustment may be accessed within the secondary menu.
Press “SET” and “EXIT” to enter the secondary menu and show the heater
power. Then press “SET” to access the proportional band.
+ Access heater power in secondary menu
12 Pct Heater power in percent
Access proportional band
Pb=0.101C Proportional band setting
To change the proportional band press “UP” or “DOWN”.
Pb=0.060C New proportional band setting
To accept the new setting and access the cut-out set-point press “SET”. Pressing
“EXIT” will exit the secondary menu ignoring any changes just made to the
proportional band value.
Accept the new proportional band setting
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