Watlow 8LS Controller - Manual (Page 116)

108 8LS User’s Guide
Appendix B: 8LS-CP
Specifications
The standard specifications listed in the Introduction section of this
manual apply to the 8LS-CP with the following additions:
Analog Inputs
Each CP Input:
• 1 Loop Selectable Type N, K, R, or S T/C Reference Temperature for
CP
• 1 Loop Selectable % Carbon Potential (CP), Dew point (DP), or DC
MV
• Carbon probe input
Carbon Probe Input Range:
• mV Range: 960 to 1275 mVdc
• CP Range: .10 to 1.40% Carbon
• Adjustable CO+CO2 Range: 1-30%
• DP Range: -40 to 300 º F/C
• Adjustable Hydrogen Range: 1-100%
Control Capability
CP PID Control
T/C Loop has standard PID control.
Carbon Probe Loop PID control is reference to T/C Loop: output is
available for control when T/C Loop is between 1400 to 2400ºF.
CP Trim Gas
A separate output is available for each CP input.
Selectable Digital Output 1-30 will be On when T/C Loop PV is
between 1400 to 2400ºF and Off when PV is outside those limits.
Carbon Burn Off
Selectable Digital Output 1-30 with adjustable interval timer or contact
start and burn off period timer. A separate output is available for each
CP input.
• Interval timer range: 1 to 255 hours.
• Contact Start: Selectable Digital Input 1-12.
• Burn Off Period range: 1-45 minutes.
• Maximum Allowable Temperature: 1900 or 2100ºF