Series-AVG

Supported Applications

The Dwyer Series AVG Averaging Temperature Sensor is designed to measure the average temperature across cooling coils in air handlers. The sensor utilizes a coiled probe that unwinds to lengths of 12' or 24', enabling an averaged reading over a large space rather than at a single point.

Key application features include:

• Averaging temperature measurement for cooling coils in air handlers
• Integration with standard building control systems via configurable output options
• Installation support using Series CC1 mounting brackets to secure the capillary without kinking

Operating Conditions & Performance

The series operates within a process temperature range of -32 to 240°F (-35.5 to 115.5°C). Accuracy specifications vary by sensor element type:

• Platinum RTD: ±0.6% @ 32°F (0°C)
• Nickel RTD: ±0.5°F @ 32°F (0°C)
• Balco RTD: ±0.1% @ 32°F (0°C)
• Thermistors: ±0.36°F from 32 to 158°F (0 to 70°C)

The probe consists of a bendable copper capillary with an overall housing height of 4-1/16 [103.21] and width of 2-1/4 [57.15]. The unit includes flanged mounting ears for installation.

Configuration Options

The Series AVG is configurable across sensor types, capillary lengths, and output signals to meet specific control system requirements.

Sensor Elements

• RTD Options: PT 1000 Ω RTD, Ni 1000 Ω RTD, Balco 1000 Ω RTD
• Thermistor Options: 10K Ω Type 2 Thermistor, 3K Ω Thermistor, 5K Ω Thermistor, 20K Ω Thermistor, and 10K Ω Type 3 Thermistor

Capillary Lengths & Cable

• Length: Available in 12' or 24' capillary lengths depending on the model.
• Cable: Includes an 8' cable length.

Housing & Connections

• Electrical Connection: Features 1/2" NPT conduit knockouts and 3/8" NPT conduit knockouts to reduce installation time for conduit routing.
• Mounting: Equipped with flanged mounting ears; compatible with Series CC1 brackets.

Output Signals

The series can be ordered with a choice of 11 output options to communicate with standard building control systems. Specific signal types are not detailed in the source documentation but allow for system integration flexibility.

Key Product Differences

Variants within the Series AVG differ primarily by sensor element type and capillary length, identified through a specific model numbering convention: AVG--.

• Sensor Type Codes: Distinguish between Platinum (22), Nickel (23), Balco (24), and various Thermistor types (25, 26, 27, 29, 2B).
• Capillary Length Codes: Models ending in '1' denote a 12' length; models ending in '1' with the preceding digit indicating 24' (e.g., AVG-22241) denote a 24' length.

The series supports both short-range averaging applications requiring 12' coverage and larger air handler coils requiring up to 24' of sensor exposure.