To Next PageTo Next Page
Need help?Do you have a question about the Tenney TJR and is the answer not in the manual?
General| Controller | Watlow F4T |
|---|---|
| Stability | ±0.3°C |
| Uniformity | ±1.0°C |
| Humidity Range | 95% RH |
| Power Supply | 60Hz |
Procedure for inspecting and safely uncrating the chamber upon receipt.
Guidelines for selecting a suitable location and performing the initial installation of the chamber.
Details the connection requirements for the Dry Air Purge System's compressed air supply.
Specifies the connection requirements for the GN2 Purge System's gaseous nitrogen supply.
Outlines the connection requirements for the LN2 Boost Cooling System's liquid nitrogen supply.
Details the connection requirements for the CO2 Boost Cooling System's liquid carbon dioxide supply.
Provides the electrical power requirements and specifications for the chamber.
Explains the procedure for safely connecting the chamber to the power supply.
Details the steps for safely energizing the equipment and performing initial checks.
Describes how to operate the chamber when an internal heat load is present (TempGard IV option).
Describes the features of the Watlow 942 and Watlow F4S temperature controllers.
Details the specific operational functions and logic of the Watlow 942 controller.
Explains the control functions for the alternate Watlow F4 controller.
Introduces the thermal cutoff device for overtemperature protection.
Step-by-step guide for safely replacing the thermal cutoff device.
Provides an overview of the TempGard IV alarm and shutdown circuit.
Details the specific wiring hookup for the TempGard IV on Model TJR.
Explains the operational logic and sequence of the TempGard IV circuit.
Guides on setting low and high temperature alarm setpoints for the TempGard IV.
Covers general maintenance checks for air-cooled and water-cooled systems, door gasket, and fans.
Briefly describes the historical development of cascade refrigeration systems.
Explains the fundamental principles of operation for capillary tube cascade systems.
Describes the components and function of the high stage refrigeration system.
Details the components and operation of the low stage refrigeration system.
Explains the role and design of the cascade condenser.
Describes the function of the de-superheater in the high stage system.
Explains the function of the evaporator coil in the low stage system.
Defines the capillary tube's role in metering refrigerant flow.
Describes the thermostat's function in the low stage system.
Explains the function of the load limit switch in protecting the compressor.
Details how artificial loading protects the compressor from overheating.
Explains the purpose and function of the expansion tank.
Describes the typical appearance of frosted lines in a cascade system.
Provides methods for leak testing the refrigeration system.
Explains how to check system tightness using static pressure.
Details the process of evacuating the refrigeration system.
Provides specific instructions for charging the low stage of the refrigeration system.
Addresses issues related to the conditioner fan not operating.
Covers causes and solutions for inadequate heat output from the chamber.
Identifies reasons for a complete lack of heating functionality.
Discusses scenarios where the chamber experiences overheating.
Addresses a complete failure of the refrigeration system.
Troubleshoots compressors that hum but fail to start.
Addresses issues with start capacitors related to voltage or timing.
Troubleshoots compressors that run slowly or stay on the start winding.
Addresses failure of the low stage compressor to start or run.
Covers issues with the low stage producing minimal or no cooling.
Addresses cases where the compressor runs but cooling performance is poor.
Discusses situations where the refrigeration system runs excessively.
Troubleshoots compressors that frequently trip their overload protectors.
Addresses noise issues with compressors.
Addresses persistent noise issues with compressors even when secured.
