Testing - Emerson MAS 2600 Reference Manual

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MAS2600: Testing and Recalibration

August 2023

Testing

Caution!

Before dispatch, the MAS2600 transmitter is calibrated in accordance with the require-

ments specified in the order.

The transducer and the amplifier are calibrated together and must, therefore, always be

used together.

A programmable measuring range transmitter will in conditions of no pressure (empty

tank) give an output signal of 4 mA, and in conditions of maximum pressure an output sig-

nal of 20 mA.

The transmitter should be tested by applying to the transducer a known pressure from a

calibrator and reading the equivalent milliamp signal on a milliamp meter.

The above-mentioned applies to the gauge transmitter only. For absolute transmitters the

output signal will be higher than 4 mA, because it is calibrated for 4 mA at 0.8 bar abs. The

output signal will typically be 5-7.5 mA in atmospheric pressure, depending on the trans-

ducer range and the actual atmospheric pressure. Maximum output signal 20 mA, will be

at the transducers absolute range.

Please observe that testing and recalibration of transmitters mounted in haz-

ardous areas shall be carried out by Ex qualified personnel.

Reference Manual

RM 6000-01-001-24

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