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Text version of the page
| A T L O | ||||||||||||||||||||||||||||||||||
| Auto-Tuning PID Controllers | ||||||||||||||||||||||||||||||||||
| SERIES 988/989 Watlow's SERIES 988 (vertical) and SERIES 989 (horizontal) temperature/process controllers are designed and manufactured for the demanding requirements of the industrial controller market. No other controller offers the flexibility, compact size and durability of the SERIES 988/989. The controller's industry leading feature set is its compact )8 DIN size and NEMA 4X1 (IP65) water and corrosion resistant front panel. The SERIES 988/989 has the autotuning and alarm features you would expect. Additionally, several unique control algorithms, not common to this price range, extend the SERIES 988/989's application potential. From the long list of product features, the SERIES 988/989's ability to provide single unit cascade control of a process is perhaps the most unique. Other features include heater current monitoring, remote set point input, differential or ratio control. Performance Capabilities • Accuracy to 0.1 percent of span • Operating environment 0 to 65°C (32 to 149°F) Features and Benefits Three inputs and four outputs • Provide application versatility Universal high or low voltage power supply, horizontal or vertical mounting and display color options • Add to application versatility A 10Hz sampling rate, along with the burst fire • Provides precise process control Enhanced software option • Provides advanced cascade, ratio or dual PID control Signal conditioner power supply options • Eliminate the need for external devices | ||||||||||||||||||||||||||||||||||
| a CO 0 n 1 ? | ||||||||||||||||||||||||||||||||||
| Auto-tune Heat/Cool | ||||||||||||||||||||||||||||||||||
| Output 1 Closed Loop PID, on-off Control Open Loop Percent Power Output 2 Closed Loop PID, on-off Control Open Loop Percent Power Control Alarm Transmitter Power Supply Output 3 Alarm Transmitter Power Supply Analog Retransmit Output 4 Alarm Transmitter Power Supply Serial Communications | ||||||||||||||||||||||||||||||||||
| Input 1 Type B, C, D, E, J, K, N, R, S, T or Pt 2 ^ Thermocouple, DIN/JIS RTD or Process Input 2 Type B, C, D, E, J, K, N, R, S, T or Pt 2 Thermocouple, DIN/JIS RTD or Process, Slidewire, Current Transformer or Digital Event Input 3 Digital Event | ||||||||||||||||||||||||||||||||||
| 9BB | ||||||||||||||||||||||||||||||||||
| l1 l2 l3 l4 dev • r 1 % out* rISPLAYJ Í man j | ||||||||||||||||||||||||||||||||||
| V | ||||||||||||||||||||||||||||||||||
| SERIES 988 | ||||||||||||||||||||||||||||||||||
| Process Deviation from Set Point | ||||||||||||||||||||||||||||||||||
| Percent Power | ||||||||||||||||||||||||||||||||||
| Serial communications • Support for one-on-one as well as remote networking of controllers UL®, CE and NEMA 4X (IP65) approvals • Help ensure product and operator safety Dual digital displays • Provide simultaneous viewing of the set point and the actual process Three-year warranty2 • Provides Control Confidence® | ||||||||||||||||||||||||||||||||||
| Applications • Any process requiring cascade, ratio, burst fire or slidewire feedback control • Food processing • Packaging • Plastics processing • Semiconductor manufacturing 1 To effect NEMA 4X (IP65) rating requires a minimum mounting panel thickness of 1.5 mm (0.06 in.) and surface finish not rougher than 0.000812 mm (0.000032 in.). 2 Electromechanical relays warranted for 100,000 closures only. Solid state switching devices recommended for applications requiring fast cycle times or extended service life. | ||||||||||||||||||||||||||||||||||
| 39 | ||||||||||||||||||||||||||||||||||