VPT10-H
HART
®
PRESSURE TRANSMITTER
INSTALLATION, OPERATION, CONFIGURATION AND MAINTENANCE MANUAL
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VPT10-H allows user to identify the following statuses via Diagnosis menu:
•
Overpressure: the pressure applied to the transmitter exceeds allowed safe value.
• Sensor Communication Failure: CL and CH reading is not running successfully.
• Faulty Sensor: the number of overpressures has exceeded limit recommended by manufacturer.
• Cap.Low Read Failure: CL reading is bringing BAD status.
• Cap.High Read Failure: CH reading is bringing BAD status.
• Totalizing Alarm: the totalization value has exceeded limit configured by user.
When in communication failure with the sensor, capacitances, pressure and flow values are indicated as Nan (Not-a-
Number) in the communication and "-E-" on display numeric field (Figura 3.13).
In the case of a saturated measurement* (above 103.125% of URV or below -1.25% of LRV), display will indicate
“SAT” message on alphanumeric field (Figure 3.14), alert icon will be displayed and “Loop Current Saturated” and “PV
Out of Limits” status will become active on HART communication.
Figure 3.14 – Indication of measurement saturation on VPT10-H.
*Saturation values are defined on NAMUR NE 43 standard.