Danfoss Industries Interview Questions and Answers

A pressure switch is used to monitor and control pressure levels in a system.

• Connect the pressure switch to the system using appropriate fittings

• Set the switch to the desired pressure range

• Calibrate the switch if necessary

• Monitor the switch for any changes in pressure and adjust as needed

An instrument is a device used to measure, control, or manipulate variables in a system.

• Instruments are commonly used in various industries such as manufacturing, research, and healthcare.

• They can measure physical quantities like temperature, pressure, flow rate, and electrical signals.

• Instruments can also control processes by adjusting variables based on feedback.

• Examples of instruments include thermometers, pressure gauges, oscilloscopes, and control valves.

Calibration is the process of adjusting and verifying the accuracy of measuring instruments or equipment.

• Calibration ensures that instruments provide accurate and reliable measurements.

• It involves comparing the readings of an instrument to a known standard.

• Adjustments are made to bring the instrument's readings within an acceptable range.

• Calibration is necessary to maintain the quality and reliability of measurements.

• Examples of instruments that require calibration include th...read more

Alarms and trips are used in instrumentation to alert operators of abnormal conditions and to shut down equipment to prevent damage or danger.

• Alarms are used to alert operators of abnormal conditions, such as high or low pressure, temperature, or flow rates.

• Trips are used to shut down equipment to prevent damage or danger, such as in the case of overpressure or overtemperature.

• Alarms and trips can be set to different levels depending on the severity of the condition.

• Examples ...read more

Cable glanding is the process of securing the end of a cable to a piece of equipment or a junction box to prevent strain on the cable and ensure safety.

• Select the appropriate size and type of cable gland based on the cable diameter and material

• Prepare the cable by stripping the outer sheath and any insulation to expose the conductors

• Insert the cable through the gland and tighten the gland nut to secure it in place

• Ensure that the cable is properly sealed to prevent ingress of ...read more

Cable testing involves checking the integrity and functionality of cables used in instrumentation systems.

• Use a multimeter to check for continuity in the cable

• Inspect the cable for any physical damage or wear

• Perform insulation resistance testing to ensure there are no shorts or faults

• Check for proper grounding and shielding of the cable

• Verify correct wiring connections at both ends of the cable