Tenney
TJR
Provisional entry — research in progress
This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.
The Tenney TJR is a Tenney Junior environmental test chamber model. The Tenney TJR is a benchtop unit. The Tenney TJR uses a cascade refrigeration system with recirculating chamber air through a refrigerated cooling coil.[1][2][3]
What it is
The TJR model is a benchtop unit with a compact external footprint intended to save valuable floor space while providing an ample interior workspace. An upright version designated TUJR is also available. The chamber features a vapor-tight interior constructed of 100% stainless steel.[1]
How it works
Control is performed by a digital temperature controller. Options include the Watlow F4T with a 4.3-inch color touch panel and INTUITION adaptive control algorithm or alternately a Watlow 942 controller. The controller offers ramp-and-soak profiles. Real-time clock and battery backup are included. Ethernet Modbus TCP connectivity is standard on the F4T model. Safety devices include an adjustable over-temperature protection circuit.[1][2]
Applications
The TJR is suited for electronic, military, and pharmaceutical quality assurance and reliability testing. Applicaton areas include temperature cycling, thermal shock simulation (with optional boost cooling), product durability validation, and research and development testing. The chamber can also be used in production processes that require precise thermal conditioning of small batches.[1]
What do the numbers mean?
Vintage & configurations
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
No research found yet — worked with this tool? Share what you know.
Frequently asked questions
What is the operating temperature range of the Tenney TJR?
The TJR can operate from -75°C to +200°C with an accuracy of ±0.3°C.[3]
What type of temperature controller does the TJR use?
The standard controller is a Watlow F4T with a 4.3-inch color touch panel, providing 1 to 4 control loops with TRU-TUNE+ adaptive control. An alternate Watlow 942 controller may also be supplied.[2]
Not publicly documented
The following facts about the TJR are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the TJR are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the TJR are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the TJR are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the TJR is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the TJR are on record.
Answerable by: an OEM parts catalog or a service engineer
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (4)Every fact above is drawn from these public sources
- [1]thermalproductsolutions.com — thermalproductsolutions.comthermalproductsolutions.com
- [2]trsrentelco.com — trsrentelco.comtrsrentelco.com
- [3]bpb-us-e1.wpmucdn.com — bpb-us-e1.wpmucdn.combpb-us-e1.wpmucdn.com
- [4]inventory listing
Last updated Oct 11, 2026.
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