TENNEY ENVIRONMENTAL
Tenney Junior Test Chambers: Models TJR and TUJR, W942, or WF4
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time-based events. Optional retransmit output allows the retransmit of set point or process variable.
Data communications is optional using RS232/RS423, RS422, EIA-485, or IEEE interface.
♦ Watlow F4 (Optional): The Watlow F4 Controller is a ¼ DIN profiling type controller, which is
designed for demanding ramp and soak applications. Up to 256 steps can be programmed into as
many as 40 variable-length, nameable profiles. A four line high definition LCD interface display
enhances guided software to make profile programming and controller configuration faster and easier.
A 16-bit microprocessor provides this operational versatility, along with precise process control. The F4
can also function as a static set point controller. EIA-232 and EIA-485 serial communications with
Modbus RTU protocol is standard.
Chamber & Product Over/Under Temperature Protection:
Chamber overtemperature protection is provided with a thermal cutoff device. Product over/under
temperature protection may be provided with an optional alarm output from the main controller. The optional
TempGard IV feature with the Watlow 93 Controller may be used for redundant product over/under
temperature protection. These devices are configured in a comprehensive alarm and shutdown circuit.
Additional Options:
Your Tenney chamber may include many other options such as boost heating, boost cooling using LN2 or
CO2, a purge air system using compressed air or GN2, a chart recorder, and LinkTenn32 software.
LinkTenn32 is an enhanced software program that provides centralized remote monitoring, and the control of
multiple process controllers / chambers simultaneously.
As you can see, Tenney Environmental Test Chambers are diversified tools designed to encompass a wide
range of operating conditions and functions. If you come upon any questions as you continue on through the
manual, please contact our Service Department.
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