Rosemount Flow Meter Manual | What does Rosemount Flow Meter Calibration Factor 0.5 mean

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1. Rosemount electromagnetic flowmeter 8732EM transmitter type digital adjustment!

The digital adjustment steps for the Rosemount electromagnetic flowmeter 8732EM transmitter are a function used in factory calibration of the transmitter, and users usually rarely use this step.. Digital adjustment is only necessary when there is suspicion that the Rosemount 8732EM transmitter is inaccurate. The following is the detailed process for digital adjustment:

Firstly, the prerequisite for digital adjustment is that it can only be performed when the coil drive mode is set to 5 Hz and the nominal sensor calibration number is stored in memory. Performing digital adjustments without using the Rosemount 8714D calibration standard may result in inaccurate transmitter readings or error messages. If the message Digital adjustment failed appears, it indicates that no value in the transmitter has changed. At this point, simply disconnect and reconnect the power supply to the Rosemount 8732EM to clear this message.

II. Before changing any configuration parameters, make sure to record the original values of the nominal sensors with Rosemount 8714D calibration standard, so that the transmitter can return to the original configuration before resuming operation. If the settings cannot be restored to the original configuration, it will result in incorrect flow and accumulator readings. The following five parameters need to be changed/verified: Calibration number: 10000 Unit: ft/s (feet/second) PV URV (upper limit of primary variable range): 20 mA=30.00 ft/s PV LRV (lower limit of first variable range): 4 mA=0 ft/s Coil drive frequency: 5 Hz

III. Digital adjustment steps (if necessary) Set the circuit to manual

mode, and then perform digital adjustment according to the following steps: cut off the power supply of the transmitter Yu Kai. Connect the transmitter to the Rosemount 8714D calibration standard. Ensure that the connection is correct and secure. Power on the transmitter connected to the Rosemount 8714D and read the flow rate. Electronic components require approximately 5 minutes of preheating to reach a stable state. Set the calibration standard for the 8714D model to a value of 9.1 m/s (30 ft/s). This is to simulate standard flow conditions. Check the flow reading after preheating. The flow reading after preheating should be between 9.1 m/s (29.97 ft/s) and 9.2 m/s (30.03 ft/s). If the reading is within this range, it indicates that the transmitter performance is normal and there is no need for digital adjustment. Simply return the transmitter to its original configuration parameters. If the reading is not within the above range, numerical adjustment is required. Activate digital adjustment through LOI (local operating interface) or handheld communicator. It takes approximately 90 seconds to complete the numerical adjustment. During the adjustment process, please ensure to follow the operating instructions and prompts of the equipment. After the adjustment is completed, recheck the flow reading to ensure that the adjustment is effective. If the problem persists, further inspection of other parts of the transmitter or consultation with professional technicians may be necessary.

4. Precautions Before making numerical adjustments, please ensure that you have fully understood the operating instructions and safety precautions of the equipment.

. During the adjustment process, please follow the operating instructi

Rosemount Flow Meter Manual | What does Rosemount Flow Meter Calibration Factor 0.5 mean

1. Rosemount electromagnetic flowmeter 8732EM transmitter type digital adjustment!

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