SP Scientific XE75 Temperature Cycling System FTS Air-Jet - Poor Heating Control

Manufacturer: FTS Systems

Model: XE753

Condition: For Parts or Not Working. This system is in Fair cosmetic condition.  There are lots of small scuffs/scratches/dings especially in the bigger cabinet that make it look a little rough from close up.  Note that the air and mains power input connections may vary from those shown in photos. Cosmetic appearance may vary slightly from pictured unit(s).

Notes: This unit is in mostly-working condition.  It gets cold and hot, but the temperature transitions are longer than specified by the manufacturer.  Heating times are about the right duration at low temperature, but cooling times are slow, up to double the rated 20 seconds from +125 to -55 Also note: this unit overshot so far it set off the Overtemperature safety limit and the maximum temperature we were able to get was about 180 degrees.  Stability at setpoint is not to specification, bouncing around + and - several degrees.  This may be as simple to fix as re-tuning the PID values in the controller, but we are not sure.  The refrigeration status light may not illuminate on the unit you receive but refrigeration still works. No other testing was done. No manuals, cords/cables, or additional items are included if not listed or shown.

Included:

• (1) Refrigeration Unit with Output Hose attached
• (1) Controller
• (1) Connection Cable

Specifications:

• Manufacturer: FTS Systems
• Model: XE753_01
• Air-Jet XE Precision Temperature Cycling System
• Temperature range: -75ºC to +225ºC
• Thermal forcing unit fits on the benchtop
• Self-contained only requires dry air, NO nitrogen required!
• Monitor and control from an internal or external (sample-mounted) thermocouple
• Save multi-step profiles in the Watlow F4 digital controller
• RS-232 or GPIB (IEEE_488) programmability to interface with automated test equipment
• Flow rates ajustable from 1.0 to 4.0 SCFM (2.0 SCFM gives best temperature control range)
• Small enough to be rack-mounted
• Refrigeration unit dimensions: 24" x 15" x 16"H (approximately)
• Built-in overtemperature safety
• Built-in low-flow safety
• PID digital controller
• Rated for +/-0.5º stability and repeatability (please read testing notes!)
• Control unit dimensions: 10" x 8" x 7" (approximately)
• Transition specifications @ 2SCFM (please read testing notes!)
  • -55ºC to +125ºC <10 seconds
  • +125ºC to -55ºC <20 seconds
• Power: 220V 50Hz (compatible with 230V 60Hz)
• Requires clean dry air, 7SCFM with -80ºC dewpoint
• NO thermal caps (sample enclosures) are included

AS-IS

• No returns - No refunds - No exchanges
• By purchasing this item, you are agreeing to not seek reimbursement should the item not function to the manufacturer's specifications.
• Read the notes carefully to ensure you are buying something you can use
• See complete terms

CDN Systems LLC, DBA Doug Deals, is not an authorized distributor or affiliated with the manufacturer of this product. Original manufacturer's warranty does not apply.