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Advanced Programmable 28 Liter Refrigerated Circulator

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  • Time/temperature programming (ten 100-step programs)
  • Intuitive 4.3” (10.9 cm) SmartTouch display
  • 6 languages: French, German, Spanish, Chinese, Arabic, English
  • Variable speed pump with open- and closed-loop external circulation capability
  • Swivel 180™ Rotating Controller
  • On-board connectivity: USB-A & B, Ethernet, RS-232/RS-485, and external temperature probe
  • Event scheduling (time & date) with real-time clock
  • Review temperature trends for up to 10 days
  • Multiple selectable “home” screens
  • On-screen help
  • Automatic and/or user-adjustable performance optimization
  • 5-point calibration capability
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Working Temperature Range °F-22° to 392°
Working Temperature Range °C-30° to 200°
Nominal Cooling Capacity @ +20C (W)915
Reservoir Capacity (gallons)7.4
Reservoir Capacity (liters)28
Reservoir/Tank MaterialStainless Steel
Reservoir CoverIncluded
Cleanable Air FilterYes
Working Access (L x W x D) (inches)12.35 x 14.13 x 5.5 in
Working Access (L x W x D) (cm)31.4 x 35.9 x 14 cm
Temperature Stability °F±0.02°
Temperature Stability °C±0.01°
Display4.3" SmartTouch Touchscreen
Display Resolution (Set)0.01
Display Resolution (Read)0.001
Pump TypePressure/Suction
Pump SpeedVariable
Process Connections1/4" (F) NPT
External Temperature Control CapabilityYes
Flammability Class (DIN 12876-1)III (FL)
Over-Temperature Protection / Failsafe Heater ControlYes
Low Liquid Level ProtectionYes
WhisperCool Environmental Control TechnologyYes
Cool Command Refrigeration TechnologyYes
Reservoir DrainYes
Included SoftwarePolyTemp Viewer, TDMS file viewer, USB driver, Time/Temperature Program Generator, PolyTemp Remote iPhone application
Maximum Ambient Temperature °F95°
Maximum Ambient Temperature °C35°
Overall Dimensions (L x W x H) (inches)26.5 x 18 x 26.9 in
Overall Dimensions (L x W x H) (cm)67.2 x 45.7 x 68.3 cm
Environmental ComplianceRoHS, WEEE
Shipping Weight (pounds)146
Shipping Weight (kilograms)66.1
Catalog Page Number 
Maximum Pressure (psi)4.3
Maximum Pressure (bar)0.3
Maximum Pressure Flow Rate (gpm)5.3
Maximum Pressure Flow Rate (l/min)20.1
Maximum Suction Flow Rate (gpm)3.9
Maximum Suction Flow Rate (l/min)14.7
Cooling Capacity @ -20°C (W)165
Cooling Capacity @ 0°C (W)505
Cooling Capacity @ +20°C (W)915
Cooling Capacity @ +100°C (W)915
Included HardwareNylon hose adapters for 3/8", 1/4", and 3/16"
Heater Wattage1100
Electrical Requirements (VAC/Hz/Ph/A)120/60/1/13
Regulatory ApprovalsETL

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Thomas No.
Mfr. No.
28 Liter Refrigerated Circulator, -30°C, Advanced Programmable
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