Emerson 3051S Specifikace stáhnout pdf (Strana 101)

Reference Manual

00809-0100-4801, Rev FA

October 2010

6-3

Rosemount 3051S Series

COMMISSIONING To commission the 3051S Safety Certified Transmitter, use the HART “Menu

Tree” on page 3-5 and “Fast Key Sequence” on page 3-6.

NOTE

Transmitter output is not safety-rated during the following: configuration

changes, multidrop, and loop test. Alternative means should be used to

ensure process safety during transmitter configuration and maintenance

activities.

For more information on the 375 Field Communicator see document

00809-0100-4276. AMS help can be found in the AMS on-line guides within

the AMS system.

Damping User-selected damping will affect the transmitters ability to respond to

changes in the applied process. The damping value + response time should

not exceed the loop requirements.

Fast Key Sequence - 1, 3, 6

Alarm and Saturation

Levels

DCS or safety logic solver should be configured to match transmitter

configuration. Figure 6-1 identifies the three alarm levels available and their

operation values.

Figure 6-1. Alarm Levels

Setting the alarm values and direction varies whether the hardware switch

option is installed. You can use a HART master or communicator to set the

Alarm and Saturation values.

Rosemount Alarm Level

Namur Alarm Level

Custom Alarm Level

(3)(4)

(1) Transmitter Failure, hardware or software alarm in LO position.

(2) Transmitter Failure, hardware or software alarm in HI position.

(3) High alarm must be at least 0.1 mA higher than the high saturation value.

(4) Low alarm must be at least 0.1 mA lower than the low saturation value.

21.75

(2)

Normal Operation

4 mA

20 mA

20.8 mA

high saturation

3.9 mA

low saturation

3.75 mA

(1)

Normal Operation

4 mA

20 mA

20.5 mA

high saturation

22.5

(2)

3.8 mA

low saturation

3.6 mA

(1)

3.7 - 3.9 mA

low saturation

Normal Operation

4 mA

20 mA

20.1 - 21.5 mA

high saturation

20.2 - 23.0

(2)

3.6 - 3.8 mA

(1)

1 2 ... 96 97 98 99 100 101 102 103 104 105 106 ... 239 240

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