Parr 4842 Digital Temperature Power Controller Watlow Series 945 Laboratory

For sale is a Parr Instrument Company Model 4842 Digital Temperature Control Power Unit, featuring a genuine Watlow Series 945 Process Temperature Controller. This industrial laboratory control system is designed for accurate temperature monitoring, heating regulation, and process control in compatible Parr laboratory reactor systems. The unit features a digital LED temperature display, adjustable temperature control, high-limit protection, heater control switches, motor speed adjustment, and multiple input/output connections for integration with laboratory equipment. The rear panel includes RPM input, pressure input, high-temperature input, reactor input, cascade input, and analog outputs for RPM, pressure, and temperature. Additional features include high-limit reset, motor reset, instrument fuse protection, and dedicated power input connections. According to the manufacturer’s identification plate, the unit operates on 115V AC, 50/60Hz, with a 12.0A current rating. This equipment is used and in working condition, with normal cosmetic wear, scratches, and signs of previous industrial use. It is a suitable choice for laboratories, research facilities, industrial process control applications, or as a replacement unit for compatible Parr reactor systems. Please carefully review all photographs for physical condition, model identification, and connector details before purchasing.

Specifications

• Brand: Parr Instrument Company

• Manufacturer: Parr Instrument Company

• Model Number: 4842

• Controller Brand: Watlow

• Controller Model: Series 945

• Equipment Type: Digital Temperature Control / Power Controller

• Serial Number: 577 

• Input Voltage: 115V AC

• Frequency: 50/60Hz

• Current Rating: 12.0A

• Display: Digital LED Process Temperature Display

• Controls: High Limit, Low Heater, Motor Speed, High Limit Reset, Motor Reset

• Inputs: RPM, Pressure, High Temperature, Reactor, Cascade

• Outputs: Analog RPM, Pressure, Temperature

• Power Connection: Rear Power Input

Applications

• Laboratory reactor temperature control systems

• Parr reactor heating and temperature regulation

• Industrial process temperature monitoring

• Laboratory heating and power control

• Chemical and material research laboratories

• Pilot plant and research equipment

• Industrial automation and process control

• Replacement or refurbishment of compatible Parr 4842 systems