Yamatake 900 Series Bedienungsanleitung

ST3000 Smart Transmitter Series 900

Electronic Differential Pressure/

Pressure Transmitter

Model : STD, STG, STA, STC,

STE, STR, STH and STU

User’s Manual

CM2-STJ100-2001

First issue: Apr. 1999 Rev.3: Oct. 2003

While this information is presented in good faith and believed to

be accurate, Yamatake Corporation disclaims the implied war-

ranties of merchantability and fitness for a particular purpose and

makes no express warranties except as may be stated in its writ-

ten agreement with and for its customer.

In no event is Yamatake Corporation liable to anyone for any

indirect, special or consequential damages. This information and

specifications in this document are subject to change without

notice.

ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter 1

Safety

Instructions

Preface

Correct installation and periodic maintenance are essential to the safe use of your dif-

ferential pressure transmitters.

Read the safety instructions provided in this manual carefully and understand them

fully before starting installation, operation, and maintenance work.

Inspection

On delivery, make sure that the specifications are correct and check for any damage

that may have occurred during transportation. This equipment was tested under a strict

quality control program before shipment. If you find any problem in the quality speci-

fications, please contact your Yamatake Corporation representative immediately, pro-

viding the model name and serial number.

The name plate is mounted on the top of the enclosure.

Precautions

The following symbols are used in this manual to ensure user safety.

 WARNING

This symbol is used to warn of hazards where failure to observe a safety instruction

may result in death or serious injury.

 CAUTION

This symbol is used to warn of hazards where failure to observe a safety instruction

may result in injury or physical damage.

To ensure safe operation, be sure to observe the safety instructions provided on the

next page.

Yamatake Corporation will assume no responsibility, or offer any guarantee for any

failure resulting from violation of these safety instructions.

Safety Yamatake Corporation

2 ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter

Explosion protected Models

FM Explosionproof/Dust -ignitionproof Apparatus (in accordance

with NEC)

 CAUTION

• Install the apparatus only in areas for which the apparatus has been approved.

• Seal each conduit entering the apparatus enclosure within 18 inches (457 mm)

from the enclosure.

• Do not open the apparatus enclosure when an explosive atmosphere is present.

1. Class I, Division 1 locations

1.1 Wiring methods

•Threaded rigid metal conduit, threaded steel intermediate metal conduit, or

Type MI cable with termination fittings approved for the location, can be

employed

•Threaded joints must be made up with at least five threads fully engaged.

1.2 Sealing

• Each conduit entering the apparatus enclosure is required to be sealed within 18

inches (457 mm) from the enclosure.

• The sealing of each conduit can be provided with a sealing fitting approved for

class I locations.

•Sealing compound must be approved and must not have a melting point of less

than 93 ° (200 °F).

• The minimum thickness of the sealing compound should not be less than the

trade size of the conduit and, in no case, less than 5/8 inch (16 mm).

• Splices and taps cannot be made in the fittings.

18 inches max.

Sealing Compound

Yamatake Corporation Safety

ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter 3

2. Class I, Division 2 locations

2.1 Wiring methods

•Threaded rigid metal conduit, threaded steel intermediate metal conduit,

enclosed gasketed busways, or Type PLTC cable in accordance with the pro-

visions of remote-control, signaling, and power-limited circuits (see NEC, Arti-

cle 725), or Type ITC cable in cable trays, in raceways, supported by messenger

wire, or directly buried where the cable is listed for this use; Type MI, MC, MV,

or TC cable with approved termination fittings can be employed.

2.2 Sealing

• Each conduit entering the apparatus enclosure is required to be sealed as shown

in 1.1.2.

3. Class II, Division 1 locations

3.1 Wiring methods

•Threaded rigid metal conduit, threaded steel intermediate metal conduit, or

Type MI cable with termination fittings approved for the location, can be

employed.

3.2 Sealing

• Where a raceway provides communication between the apparatus enclosure and

an enclosure that is not required to be dust-ignitionproof, suitable means must be

provided to prevent the entrance of dust into the former enclosure through this

raceway. One of the following means can be used: (1) a permanent and effective

seal; (2) a horizontal raceway not less than 10 ft (3.05 m) long; or (3) a vertical

raceway not less than 5 ft (1.52 m) long and extending downward from the dust-

ignitionproof enclosure.

• Seals are not required to be explosionproof.

4. Class II, Division 2 locations

4.1 Wiring methods

• Rigid metal conduit, intermediate metal conduit, electrical metallic tubing,

dust-tight wireways, or Type MC or MI cable with approved termination

fittings, or Type PLTC in cable trays, or Type ITC in cable trays, or Type

MC or TC cable installed in ladder, ventilated trough, or ventilated channel

cable trays in a single layer, with a space not less than the larger cable diam-

eter between the two adjacent cables, can be employed.

4.2 Sealing

• Sealing means must be provided as shown in 1.3.2.

Safety Yamatake Corporation

4 ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter

5. Class III, Division 1 locations

5.1 Wiring methods

•Rigid metal conduit, rigid non-metallic conduit, intermediate metal conduit,

electrical metallic tubing, dust-tight wireways, or Type MC or MI cable with

approved termination fittings, can be employed.

5.2 Sealing

• Sealing means are not required.

6. Class III, Division 2 locations

6.1 Wiring methods

• Wiring methods must comply with 5.1.

6.2 Sealing

• Sealing means are not required.

Yamatake Corporation Safety

ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter 5

CSA Explosionproof / Dust-ignitionproof Apparatus (in accordance

with CEC)

 CAUTION

• Install the apparatus only in any hazardous (classified) locations for which the

apparatus has been approved.

• Seal each conduit entering the apparatus enclosure within 500 mm of the enclo-

sure according to the test report.

• Do not open the apparatus enclosure when an explosive atmosphere is present.

1. Class I, Division 1 locations

1.1 (a) Threaded rigid metal conduit or (b) cables approved for hazardous loca-

tions with associated cable glands approved for the particular hazardous

locations, can be used.

1.2 Threaded joints must have at least five full threads fully engaged.

1.3 Seals must be provided in conduit or cable systems to prevent passage of

gases, vapours or flames.

1.3.1 The seal is located in each run of conduit entering the apparatus enclosure

as close as practicable to and in no case more than 500 mm from the enclo-

sure.

1.3.2 The seal can be made in a sealing fitting approved for the location.

•Sealing compound must be approved for the purpose.

• The melting point of the sealing compound should not be less than 93°C (200°F).

• The minimum thickness of the sealing compound should not be less than the

trade size of the conduit and in no case, less than 5/8 inch (16 mm).

• Splices and taps are not made in the fittings.

0.5 m max.

Sealing Compound

Safety Yamatake Corporation

6 ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter

2. Class I, Division 2 locations

2.1 (a) Threaded metal conduit, or (b) cables approved for hazardous locations

with associated cable glands approved for the particular location, or (c)

Type TC cable installed in cable tray, or (d) Type ACWU cable with associ-

ated cable glands approved for the particular location, can be used.

2.2 Seals must be provided in conduit or cable systems to prevent passage of

gases, vapours or flames.

2.2.1 The seal is located in each run of conduit entering the apparatus enclosure as

close as practicable to and in no case more than 450 mm from the enclosure;

2.2.2 The sealing in Class I, Division 2 locations conforms to 1.3.2.

3. Class II, Division 1 locations

3.1 (a) Threaded rigid metal conduit, or (b) cables approved for hazardous loca-

tions with associated cable glands approved for the particular hazardous

location, can be used.

3.2 Where a raceway provides communication between the apparatus enclosure and

an enclosure that is not required to be dust-tight, the entrance of dust into the

former enclosure through this raceway must be prevented by (a) a permanent and

effective seal, or (b) a horizontal section not less than 3 m long in the raceway, or

ward from the dust-tight enclosure.

4. Class II, Division 2 locations

4.1 (a) Threaded metal conduit, or (b) cables approved for hazardous locations

with associated cable glands approved for the particular location, or (c)

Type TC cable installed in cable tray, or (d) Type ACWU cable with associ-

ated cable glands approved for the particular location, can be used.

4.2 Sealing of raceways conforms to 3.2.

5. Class III, Division 1 locations

5.1 Wiring methods

(a) Threaded rigid metal conduit or (b) cables approved for hazardous loca-

tions with associated cable glands approved for the particular hazardous

locations, can be used.

5.2 Sealing

Sealing means are not required.

Yamatake Corporation Safety

ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter 7

6. Class III, Division 2 locations

6.1 Wiring methods

The wiring methods in Class III, Division 2 locations conform to 5.1 except that

in sections, compartments, or areas used solely for storage and containing no

machinery. (In such sections, compartments, or areas, open wiring methods con-

forming to the rules for non-hazardous locations may be used.)

6.2 Sealing

Sealing means are not required.

Safety Yamatake Corporation

8 ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter

FM /CSA Nonincendive Apparatus

 CAUTION

•The nonincendive apparatus can be installed only in Division 2 hazardous

(classified) locations for which the apparatus has been approved.

•Tampering and replacement of any components within the nonincendive

apparatus may impair safe use of the apparatus.

Installation requirements

1. Wiring of the nonincendive circuit is permitted using any of the methods suitable

for wiring in ordinary (unclassified) locations.

~Note Nonincendive apparatus is composed of all nonincendive circuits in

which any arc or thermal effect produced under normal operating condi-

tions of the apparatus is not capable of igniting the explosive atmo-

spheres. This protection technique is permitted for apparatus in those

Class I, Division 2, Class II, Division 2, and Class III locations. Nonin-

cendive apparatus looks like intrinsically safe apparatus but are not,

require associated apparatus (ex. shunt diode barriers).

2. In any raceway, junction box, or similar fitting, the conductors of the nonincen-

dive circuit cannot be placed with the conductors of any other system, unless (1)

the conductors of the two systems are separated by a suitable mechanical partition,

or (2) all of the conductors of either system are segregated by a grounded metal

shield.

3. It is recommended that separate nonincendive circuit conductors to be in sepa-

rate cables, unless (1) the conductors of each circuit are within a grounded metal

shield, or (2) the conductors of each circuit have insulation with a minimum thick-

ness of 0.01 inch (0.254 mm)

4. If a raceway (including conduit) and cable for a nonincendive circuit in Class

I, Division 2 or Class II, Division 2 locations is capable of transmitting flam-

mable atmosphere through the raceway and cable from the Division 2 location

to a non-hazardous location, it must be properly sealed at the boundary by using

of non-approved sealing fittings.

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