Temperature Control

Instrumentation for Environmental Monitoring and Industrial Control

Measuring temperature, relative humidity, CO₂ and atmospheric pressure helps monitor conditions in industrial facilities, equipment rooms and production processes. Selecting the right instrumentation requires understanding the measured variables, required accuracy, operating environment and data acquisition system.

At Garma Electrónica, we offer transmitters, controllers, data loggers and monitoring equipment with different mounting and connectivity options depending on the model.

Measurement and Monitoring Equipment

Temperature and Humidity Transmitters

These instruments measure environmental variables and transmit data to PLCs, controllers or monitoring systems. Selected models provide analogue outputs such as 4-20 mA or 0-10 V, while others offer digital communication. Some models also calculate dew point and additional humidity-related values.

CO₂ and Atmospheric Pressure Sensors

CO₂ instruments monitor carbon dioxide concentration in compatible applications. Barometric transmitters measure atmospheric pressure. These measurements should not be confused with process differential pressure, which requires dedicated instrumentation.

Controllers and Alarm Outputs

Selected devices include relays or switching functions for alarms and external equipment control. Setpoints, available functions and electrical output ratings must be verified for the exact model.

Data Loggers and Monitoring Systems

Temperature and humidity data loggers store measurements for historical review. Important selection criteria include channel count, recording interval, communication interfaces, alarm requirements and data retrieval options.

Sensors for Potentially Explosive Atmospheres

Selected products are available in versions intended for classified hazardous areas. ATEX markings, permitted zones and installation requirements must be checked for each exact variant.

Moisture Measurement in Bulk Solids

Measuring moisture in solid materials requires different technologies and selection criteria from measuring relative humidity in air. Material properties, sensor installation, process conditions and calibration requirements must be considered.

How to Select the Right Instrument

Not all interfaces, functions or approvals are available on every product. Selection must be based on the technical documentation of the specific model.

Industrial Applications

• Data centres and server rooms: monitoring temperature and humidity in technical environments.
• HVAC and ventilation: measuring environmental variables and integrating them with control systems.
• Warehousing and logistics: recording storage conditions and monitoring variations.
• Industrial processes: monitoring temperature, humidity and other operating parameters.
• Quality control: recording and reviewing environmental conditions where required by the process.

Transmitter, Controller or Data Logger?

If you need to send measurements to a PLC, a transmitter may be the right solution. If you need switching actions when thresholds are reached, consider a controller with relay outputs. If you need historical measurement records, evaluate a data logger or monitoring system.

Selected instruments combine some of these functions, but capabilities must be verified for each product.