Model 123C Temperature Chamber Specifications
Cool Down Transition Time
|Start Temp||End Temp|
|+23°C||-----||6 min||27 min||41 min||55 min||Ultimate|
|+85°C||18 min||28 min||54 min||70 min||85 min||Ultimate|
|Heat Up Transition Time|
|Start Temp||End Temp|
|+23°C||-----||2 min||12 min||24 min||33 min||Ultimate|
|0°C||3 min||9 min||18 min||32 min||41 min||Ultimate|
|-40°C||9 min||16 min||25 min||39 min||48 min||Ultimate|
|-55°C||14 min||18 min||31 min||44 min||53 min||Ultimate|
|-65°C||15 min||21 min||32 min||45 min||54 min||Ultimate|
Rate Of Change
To calculate rate of change for a particular condition, take the difference between the Start Temp and End Temp and divide by the Transition Time.
Cool Down Example: From +85°C to -40°C = 125°C / 54 min = 2.3°C/min.
Heat Up Example: From -40°C to +85°C = 125°C / 25 min = 5.0°C/min.
*Note: Transition times are measured after a 2 hour soak at the respective start temperature with an empty chamber, as indicated on the temperature controller, 23°C ambient. Measured with setpoint beyond the start and end temperatures. Does not include the effect of proportional band when approaching setpoint. Performance is reduced on 123C-EX 50 Hz export versions by 17%.
Refrigeration and Heating System
|High Stage Refrigerant||R-404A (Dupont HP-62)|
|Low Stage Refrigerant||R-508B (Dupont SUVA-95)|
|Compressors||1/2 HP x 1/3 HP Tecumseh hermetic compressors in a cascade configuration.|
|Heat of Rejection||5,000 BTUH (maximum rated chamber load at maximum cooling rate from high temperature soak)|
|Air Heater Power||1,000 Watts (500 Watts when compressors are running)|
|Temperature Controller||Watlow F4T Touch Screen Controller with RS-232, Ethernet interface, 4.3" color graphic touch screen. OR...
Watlow F4 Controller with RS-232 interface, LED readout of temperature, LCD display of other parameters.
|Limit Controller||Independent high and low temperature limits. Triggers an audible alarm and shuts down the chamber. Relay contacts provide a safety power interlock for test sample.|
|Chart Recorder||(Optional) Honeywell DR4300 Series. One pen, 10" circular chart. Mounts in lower front door. 24-hour rotation.|
Input Power Requirements
123C North America Version:
123C-EX Export Version:
6' Power cord supplied with a molded NEMA 5-20P plug.
Plugs into a standard NEMA 5-20R receptacle.
Model 123C-EX export version is supplied with power cord for the destination country.
|Inside Dimensions||18" W x 16.5" H x 13.5" D (2.3 cubic feet)|
|Outside Dimensions||26" W x 63" H x 36.5 " D (nominal)|
|Minimum Installed Clearance||6 " from the left and right side
12" from the rear
|Window Viewing Area||7" W x 12 " H|
|Access Ports||4" Port on left and right side (two total)
Supplied with foam plugs
|Weight||Chamber Weight: 520 pounds
Shipping Weight: 600 pounds (North America only, contact us for export shipment)
|Sound Level||62 dBA (A-weighted, measured 36" from the front)|
NOTE: Performance is typical and based on operation at 23°C (73°F) ambient and nominal input voltage. Designed for use in a normal conditioned laboratory. Operation at higher ambient temperatures may result in decreased cooling performance. Additional ports and shelves will also affect performance. Operation above 30°C (85°F) or below 16°C (60°F) ambient is not recommended.