Emerson ROSEMOUNT 5300 Spécifications télécharger pdf (Page 47)

Reference Manual

00809-0600-4026, Rev BA

December 2011

4-3

Rosemount Process Radar

COMMISSIONING Follow this commissioning procedure for the first time the process is started at

actual operating conditions and actual process media.

Verification Review and verify that the following matches application and installation

requirements, as described in Section 2: 5300 Quick Installation Guide and

Section 3: 5300 Installation & Configuration.

• Mounting Considerations

• Mechanical Installation

• Electrical Installation

• Basic Configuration

• Advanced Configuration

Configuration Threshold settings

Recommended Threshold settings for the Rosemount 5300 Series:

1. Review threshold settings

2. If needed, use the following best practices to apply custom threshold

adjustments:

• Generally, the threshold should be at 40-50% of the surface peak.

Example: If the surface is 2000 mV, the threshold should be set at

800-1000 mV.

• It should never be closer than 300 mV to any disturbing objects.

Example: If there is a 1100 mV peak from an inlet-pipe, the threshold

around it should be 1400 mV.

• The threshold should never be below 800 mV in the range 0-1 ft (0.3 m)

and never below 500 mV from 1 ft (0.3 m) upwards.

Figure 4-1. Echo Curve after

surface threshold was adjusted

3.0 5.0

After Surface Threshold is

adjusted, the product surface is

correctly detected

Amplitude, mV

Distance, m

Reference Threshold

Surface Threshold=

Amplitude Threshold

Curve (ATC)

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 105 106

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Emerson ROSEMOUNT 5300 Spécifications Page 47