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Parameter description – Honeywell STR12D User Manual

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34-ST-03-64

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Parameter

Description

Pressure Equipment Directive

(97/23/EC)

The ST 3000 pressure transmitters listed in this Specification have no pressurized

internal volume or have a pressurized internal volume rated less than 1,000 bar (14,500

psig) and/or have a maximum volume of less than 0.1 liter. Therefore, these
transmitters are either; not subject to the essential requirements of the directive

97/23/EC (PED, Annex 1) and shall not have the CE mark, or the manufacturer has the

free choice of a module when the CE mark is required for pressures > 200 bar (2,900
psig).

NOTE:

Pressure transmitters that are part of safety equipment for the protection of piping (systems) or vessel(s) from

exceeding allowable pressure limits, (equipment with safety functions in accordance with Pressure Equipment Directive

97/23/EC article 1, 2.1.3), require separate examination.

200
180
160
140
120
100

80
60
40
20

0

185

165

Maximum Ambient
Temperature (°F)

140

350

200

450

Process Interface Temperature (°F)

200
180
160
140
120
100

80
60
40
20

0

185

165

Maximum Ambient
Temperature (°F)

140

350

200

450

Process Interface Temperature (°F)


Figure 13—Ambient temperature and process interface chart.



Transmitter Minimum Span and Maximum Capillary Length

Minimum recommended span for STR12D and STR13D DP Transmitter with two Remote Seals

Diaphragm

Capillary

Capillary Length

Size

5'

10'

15'

20'

30'

35'

maximum

2.4

200 iwc

-

-

-

-

-

5'

2.9

100 iwc

125 iwc

150 iwc

175 iwc

-

-

20'

3.5

16 iwc

20 iwc

24 iwc

28 iwc

36 iwc

40 iwc

35'

4.1

12 iwc

15 iwc

18 iwc

21 iwc

27 iwc

30 iwc

35'

Minimum recommended span for STR12D and STR13D DP Transmitter with one Remote Seal

Diaphragm

Direct

Capillary

Capillary Length

Size

Mount

5'

10'

15'

20'

30'

35'

maximum

2.4

20 psig

30 psig

-

-

-

-

-

5'

2.9

10 psig

15 psig

20 psig

25 psig

30 psig

-

-

20'

3.5

50 iwc

80 iwc

100 iwc

120 iwc

140 iwc

180 iwc

200 iwc

35'

4.1

40 iwc

60 iwc

80 iwc

100 iwc

120 iwc

160 iwc

180 iwc

35'

Minimum recommended span for STR14G, STR14A, STR17G Transmitter with Remote Seal

Diaphragm

Direct

Capillary

Capillary Length

Size

Mount

5'

10'

15'

20'

30'

35'

maximum

2.0

25 psi

30 psi

40 psi

50 psi

-

-

-

15'

2.4

10 psi

15 psi

20 psi

25 psi

30 psi

40 psi

50 psi

35'

2.9

8 psi

9 psi

10 psi

11 psi

12 psi

14 psi

15 psi

35'

3.5

5 psi

5 psi

5 psi

5 psi

5 psi

7 psi

8 psi

35'

4.1

5 psi

5 psi

5 psi

5 psi

5 psi

7 psi

8 psi

35'

Minimum span is the higher of the value from the table above or the value defined under Performance Conditions for the range transmitter

Figure 14—Maximum capillary length and diaphragm size chart.