Traditionally, papermakers have positioned the “dry-line” to
obtain the proper drainage on the wire. However, larger paper
machines, elevated wires, steamy forming sections, and remote
control room locations make dry-line monitoring difficult for
operators. As top wires and additional fourdriniers are added, the
dry-lines can disappear altogether.
The 8110-F Fixed Point Gamma System offers a simple and
realistic means of monitoring and controlling the basis weight or
consistency of the sheet at many locations in the forming section.
One or more 104
Sensors can be mounted before and/or after top wires, dandy
rolls, multi-ply sheets and gap formers, depending on various paper
machine configurations.
System features:
- Easy integration with DCS systems
- Exceptional long term stability
- Typical accuracy better than ±1%
- Easy installation & removal without interfering with paper
machine operation
- Grade parameters stored in battery backed random access memory
(RAM)
- Programmable security lock-out
- Wide variety of I/O options
- Hardened industrial design for 24-hour operation
- Touchscreen interface for ease of use
- Continuous indication of consistency at strategic locations on
the wire
- Automatic closed loop control of consistency
System benefits:
- Improved formation
- Increased plybond & internal bond
- Monitoring and control of vacuum and drainage
- Improved runability & wet-end stability
- Reduced losses at grade changes
- Improved press & dryer settings with auto/manual
control
- Optimized top former/dandy roll performance
- Reduced two-sidedness
- Quantification of the effect of table changes
- Forming fabric evaluation