9907-147  ProTech 203 De-Energize-to-Trip Overspeed

Model 9907-147 uses magnetic pickups to monitor primer speed for overspeed conditions. Devices in this series are susceptible

to electromagnetic interference, vibration, moisture, and temperatures outside of the operating temp range of –25 to +60 °C (–13

to +140 °F).

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Description

9907-147  ProTech 203 De-Energize-to-Trip Overspeed Protection Systems

9907-147 Technical Specifications

Dimensions W482.6mm x H310.4mm x D142.7mm
Display Operating Temperature –15 to +60 °C
Features Key Lock
Input Voltage 24 Vdc
Keypad/Display 3 LCDS | 2 Lines of 16 Characters
Manufacturer Woodward ProTech
Model De-energize-to-Trip
Operating Temperature –25 to +60 °C
Weight Less than 17 lbs

Product Description

Model 9907-147 uses magnetic pickups to monitor primer speed for overspeed conditions. Devices in this series are susceptible

to electromagnetic interference, vibration, moisture, and temperatures outside of the operating temp range of –25 to +60 °C (–13

to +140 °F). ProTech overspeed protection models should be installed in locations that allow adequate ventilation for cooling, space

for servicing, and away from direct sunlight, and away from high-current or high-voltage devices.

9907-147

This de-energize-to-trip system has a 100 Hz to 32 kHz speed-sensing frequency range and a ±(0.05% x Trip Point in Hz +2 Hz)

accuracy rating. Overspeed detection functions are carried out by three individual speed-sensing units, which act independently

to monitor speed and perform speed calculations. The three units are in a two-out-of-three vote configuration, so a prime mover trip

relay will only occur if overspeed conditions are detected by at least two of the units.

The trip-point frequency range of ProTech overspeed protection model 9907-147 is 250 Hz to 25 kHz. Trip set points are programmed

for each of the units separately (they must be programmed identically for accurate outputs) using the operator interfaces. There is one interface per speed-sensing unit. Each one has:

  • Two-line by 16-character LCD display
  • Touchpad
  • Potentiometer
  • LED indicators
  • Alarm output

Programming and testing functions are locked to prevent unauthorized changes. One key switch to move between MONITOR mode and PROGRAM mode is connected to all three units.

Please contact Sunny sales@xiongbagk.cn for the best price.

➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
➱ QQ: 3095989363
➱ Website:www.sauldcs.com

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