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Benchtop Temperature and Humidity Test Chambers

Tenney Junior Compact Temperature Test Chamber

The Tenney Junior environmental test chamber is a popular choice for reliable temperature testing. The Tenney Junior can be used for testing materials from  -75°C to +200°C. 

Benefits

  • Space saving design - available as upright or bench versions
  • Compact exterior with ample interior workspace to maximize valuable floor space
  • Low total cost of ownership
  • Field proven reliablity with thousands in use worldwide
  • Vapor-tight, continuously welded interior
  • Easy to use controller

Features

  • Vapor tight interior made with 100% stainless steel
  • Control tolerance of +/-0.3°C
  • Hermetic system uses accurately calibrated capillary tubes rather than mechanical expansion valves
  • Low-mass nichrome, open wire heating system
  • Vertical-down recirculating system
  • Double silicon gaskets on doors
  • 3” diameter access port with plug
  • EIA-232 / RS485 Interface

Controlled-Rate Freezer Applications

The Tenney Junior can be used for controlled rate freezing with options that are specifically engineered for cryogenic applications. The onboard controller stores profiles for freezing jobs and the unit has optional recorders and ports for attaching printers for verification and data collection.

  • Accurate and controlled freezing rates
  • Freezing provided by specialized LN2 option and airflow controls
  • Efficient operation provided by insulation, door seals and accurate control of temperatures
  • Custom loading racks, freezing profile programming and data recording options are available

Controller - Watlow F4

Controller - Watlow F4
  • Single Channel
  • Profiling: Forty Profiles, 256 Steps
  • Automatic & Manual Control
  • 1 Input: Universal Type (RTD is Std.)
  • 4 Digital Inputs
  • 2 Auxiliary Analog Inputs - Optional
  • 2 Control Outputs: Time Proportioned, On/Off, or 4-20 ma
  • 2 Alarm Outputs
  • 8 Digital Event Outputs
  • 2 Retransmit Outputs - Optional
  • Communications: EIA-232 and EIA-485 with Modbus RTU protocol

Standard Data Communications

  • EIA-232 and EIA-485 data communications with Modbus RTU protocol is provided standard

Optional Data Communication

  • RS232C / RS423A
  • RS422A
  • EIA-485
  • IEEE-488

Photo Gallery

Tenney Junior

Options

GN2 Purge System

GN2 Purge System

  • provides and inert atmosphere inside the chamber
  • minimizes moisture buildup
  • prevents condensation
  • prevents corrosion by eliminating oxygen in the chamber
Dry Air Purge System

Dry Air Purge System

  • removes unwanted moisture and process vapors from chamber
  • a chamber valve prevents chamber from becoming pressurized
  • self regenerating twin tower heatless dessicant type dryer
  • activated by an event output from main controller
LinkTenn 32 Controller Software

LinkTenn 32 Controller Software

  • interactive remote control and monitoring
  • alarm reporting and notification via email or fax
  • user-friendly profile program editor
  • logging, printing and graphing of process data
  • exporting of logging history data via CSV file for easy import into Microsoft Excel or analysis packages
Tempguard IV Overtemperature Protection      protects ag

Tempguard IV Overtemperature Protection

  • protects against product over/under temperature
  • microprocessor based controller that incorporates programmable high and low temperature limits
  • 100 ohm Platinum RTD used for temperature measurement
  • easy to use
  • Viewing windows up to 6” x 8” and thermally insulated

  • Interior lighting

  • Shelving, adjustable and removable

  • Automatic CO2 or LN2 cooling boost system

  • Recording instruments

  • External dryer for obtaining humidity as low as 5%

  • Alternative power supply options for many global current schemes

  • Cart system to allow chamber to be moved within a facility

  • Stacking option for bench model

IST

Tenney Junior Environmental Test Chambers Specifications
Overall dimensions in inches/mm

Model
Instant Order
TJR
Instant Order
TUJR
Workspace W
16 / 406
D
11 / 279
H
11.75 / 298
Exterior W 37 / 940 25-5/8 / 650
D 22-1/2 / 572 21-7/8 / 560
H 31-3/4 / 807 60 / 1524
Temperature Range
Low C -75
High C +200
Utilities, etc
Refrigeration (2) 1/2 HP
Heater Capacity 500 W
Amps@120V / 1 Ph / 60Hz 18
Amps Fuse 20
Unit Weight lbs/kg 292 / 132 336 / 152

Change Rates in Minutes - Chamber Empty
Ambient to 200°C 60 minutes
Ambient to 185°C 50 minutes
Ambient to 160°C 40 minutes
Ambient to 140°C 30 minutes
Ambient to 105°C 20 minutes
Ambient to 70°C 10 minutes
Ambient to 25°C 0 minutes
Ambient to -15°C 10 minutes
Ambient to -40°C 20 minutes
Ambient to -54°C 30 minutes
Ambient to -65°C 40 minutes
Ambient to -73°C 55 minutes
Ambient to -75°C Ultimate

Live Load Capacity in Watts (humidity system off)
Temperature
-40°C
170
-54°C
145
-65°C
105
-73°C
60
-75°C
Ultimate







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