The WIKA TT.52 Twin-Temp Thermometer is an industrial temperature measuring instrument designed for applications requiring both local visual indication and electrical measurement. It integrates a mechanical temperature indicator with an electrical sensing element in one assembly, allowing operators to read temperatures directly at the installation point while transmitting measurement signals to compatible monitoring or control systems.
With a 5-inch adjustable-angle dial, 304 stainless steel construction and configurable electrical sensing options, the TT.52 supports a variety of industrial temperature monitoring requirements. Depending on the selected configuration, electrical sensing options include thermocouples, a platinum RTD and an optional 4–20 mA transmitter.
Key Features
- Dual temperature measurement functionality: Combines mechanical dial indication with an electrical sensing element in one instrument.
- Large, adjustable dial: The 5-inch (127 mm) dial can be positioned for convenient local reading.
- Configurable temperature ranges: Standard ranges extend from -40°F to 550°F (-40°C to approximately 288°C), with higher ranges available for selected configurations.
- Multiple sensor options: Supports Type J, K, E and T thermocouples, as well as a platinum 100-ohm RTD.
- Stainless steel construction: The standard case, stem and connection are made of 304 stainless steel.
- Flexible installation: Features an adjustable-angle dial and a standard 1/2-inch NPT process connection.
- Optional signal transmission: A 4–20 mA transmitter can be specified for compatible configurations.
- Flexible dial scales: Fahrenheit, Celsius and dual-scale options are available.
Specifications and available options depend on the selected model configuration. Confirm the applicable manufacturer datasheet before ordering.
Suitable Applications
1. Industrial Process Monitoring
The TT.52 provides local temperature readings while allowing electrical measurement signals to be integrated into compatible monitoring systems. It is suitable for processes where operators need both a visible temperature display and remote measurement capability.
2. Industrial Machinery and Equipment
The thermometer can be used on compatible industrial machinery and equipment to monitor operating temperatures. Its combination of local indication and electrical sensing supports routine inspection and integration with equipment monitoring systems.
3. Chemical Processing
For compatible process media, the TT.52 can support temperature monitoring in chemical processing equipment. Before installation, verify the compatibility of the 304 stainless steel wetted components with the process medium, operating temperature and pressure.
4. Industrial Automation and Control
When configured with a suitable sensor or optional 4–20 mA transmitter, the TT.52 can supply temperature information to compatible instrumentation, PLCs and industrial control systems.
5. Test Benches and Research Equipment
The instrument can be used in selected testing and research applications where simultaneous local temperature indication and electrical measurement are useful for monitoring operating conditions and collecting measurement data.
Technical Highlights & Selection Considerations
Before ordering the WIKA TT.52, review the following parameters to ensure the instrument meets your application requirements.
1. Temperature Range
Choose a measuring range that covers the normal operating temperature and any expected temperature excursions. The standard range extends to 550°F, while selected Type K thermocouple configurations support higher temperatures. Confirm the permissible range of the complete instrument assembly.
2. Electrical Sensor Type
Select the sensing element according to the required measurement range and control system:
- Thermocouple: Type J, K, E or T, depending on the application and required temperature range.
- RTD: Platinum 100-ohm RTD with a 3-wire standard configuration.
- Optional 4–20 mA transmitter: Consider this option when a standardized current signal is required by the receiving control system.
Confirm the available combinations and electrical specifications for the selected model.
3. Stem Length and Process Connection
Check the required insertion length, installation space and connection thread before ordering. The standard process connection is 1/2-inch NPT. Ensure that the selected stem length provides suitable immersion in the process without interfering with surrounding equipment.
4. Process Medium Compatibility
The standard instrument uses 304 stainless steel for the case, stem and connection. Verify material compatibility with the process medium, operating pressure, temperature and other environmental conditions. Additional protection or a different instrument design may be necessary for corrosive or otherwise demanding applications.
5. Electrical Output and System Compatibility
If the instrument will connect to a PLC, data acquisition system or remote monitoring device, confirm the sensor input requirements, wiring arrangement and signal type. If a 4–20 mA output is required, verify the availability of the optional transmitter and its electrical specifications.
6. Dial Scale and Installation Orientation
Select Fahrenheit, Celsius or dual-scale indication according to the site's operating requirements. Consider the adjustable-angle dial when planning installation so operators can read the temperature clearly and safely.
7. Replacement and Calibration Requirements
For replacement orders, provide the existing model or part number and the instrument's full configuration whenever possible. If calibration certificates or traceability documentation are required, confirm their availability when requesting a quotation.
Frequently Asked Questions (FAQ)
Q1: What is the WIKA TT.52 Twin-Temp Thermometer?
The WIKA TT.52 is an industrial temperature measuring instrument that combines mechanical dial indication with an electrical sensing element, allowing local temperature reading and remote measurement through a compatible system.
Q2: What temperature range is available for the TT.52?
The standard range extends from -40°F to 550°F (-40°C to approximately 288°C). Higher ranges, up to 750°F (approximately 399°C), are available for selected Type K thermocouple configurations. Confirm the exact range for the selected part number.
Q3: Does the WIKA TT.52 support a 4–20 mA output?
A 4–20 mA transmitter is available as an option for compatible configurations. Confirm the transmitter specification, electrical connection and enclosure requirements before ordering.
Q4: What is the difference between the thermocouple and RTD options?
Thermocouples generate a voltage related to temperature and are available in different sensor types. RTDs measure temperature through changes in electrical resistance. The appropriate choice depends on the required temperature range, measurement system and application.
Q5: What materials are used in the TT.52?
The standard case, stem and connection are made of 304 stainless steel. Material suitability should be checked against the process medium and operating conditions.
Q6: What information is needed to request a quotation?
Provide the model or part number, temperature range, sensor type, stem length, process connection, dial scale, required output signal and any enclosure or calibration requirements. A photograph of the nameplate or the existing instrument can also help identify the correct configuration.
