A verification device for verifying a plurality of types of field devices (110-A... 110-N) installed in a process plant, the verification device comprising: a. an adapter configured to operatively connect the verification device to a field device under verification; b. a repository comprising a plurality of verification definition data sets, each of the verification definition data sets is associated with a type of field device from the plurality of types of field devices; wherein each verification definition data set comprise one or more sets of threshold values of one or more corresponding operational parameters for a corresponding type of field device; and c. a verification module configured for: i. obtaining, from the repository, a corresponding verification definition data set associated with the field device under verification, based on a device type identifier of the field device; ii. measuring one or more values of one or more operational parameters of the field device under verification in accordance with the corresponding verification definition data set; iii. comparing the measured values of the one or more operational parameters with corresponding threshold values of the one or more operational parameters from a set of threshold values of the one or more operational parameters from the corresponding verification definition data set; and iv. determining a condition of the field device under verification based on the comparison. a. an adapter configured to operatively connect the verification device to a field device under verification; b. a repository comprising a plurality of verification definition data sets, each of the verification definition data sets is associated with a type of field device from the plurality of types of field devices; wherein each verification definition data set comprise one or more sets of threshold values of one or more corresponding operational parameters for a corresponding type of field device; and c. a verification module configured for: i. obtaining, from the repository, a corresponding verification definition data set associated with the field device under verification, based on a device type identifier of the field device; ii. measuring one or more values of one or more operational parameters of the field device under verification in accordance with the corresponding verification definition data set; iii. comparing the measured values of the one or more operational parameters with corresponding threshold values of the one or more operational parameters from a set of threshold values of the one or more operational parameters from the corresponding verification definition data set; and iv. determining a condition of the field device under verification based on the comparison. i. obtaining, from the repository, a corresponding verification definition data set associated with the field device under verification, based on a device type identifier of the field device; ii. measuring one or more values of one or more operational parameters of the field device under verification in accordance with the corresponding verification definition data set; iii. comparing the measured values of the one or more operational parameters with corresponding threshold values of the one or more operational parameters from a set of threshold values of the one or more operational parameters from the corresponding verification definition data set; and iv. determining a condition of the field device under verification based on the comparison.