Emerson Rosemount 248 User manual

Quick Start Guide

00825-0200-4248, Rev CA

March 2015

Rosemount 248 Wireless Temperature

Transmitter

00825-0200-4248_RevCA.fm Page 1 Monday, March 30, 2015 9:22 AM

March 2015

Quick Start Guide

Rosemount 248 Wireless Temperature

Transmitter

(Polymer housing)

Rosemount 248 Hardware Revision

HART®Device Revision

Device Install Kit/DD Revision

Device Type

Device Revision 01, DD Revision 01 or greater

2676

(Aluminum housing)

Rosemount 248 Hardware Revision

HART Device Revision

Device Install Kit/DD Revision

Device Type

Device Revision 02, DD Revision 02 or greater

0076

NOTICE

This guide provides basic guidelines for the Rosemount 248 Wireless. It does not provide

instructions for detailed configuration, diagnostics, maintenance, service, troubleshooting, or

installations. Refer to the Rosemount 248 Wireless Reference Manual (document number

00809-0100-4248) for more instruction. The manual and this guide are also available

electronically on www.rosemount.com.

Failure to follow these installation guidelines could result in death or serious injury.

Make sure only qualified personnel perform the installation.

Explosions could result in death or serious injury.

Before connecting a Field Communicator in an explosive atmosphere, make sure the

instruments are installed in accordance with intrinsically safe or non-incendive field wiring

practices.

Verify the operating atmosphere of the transmitter is consistent with the appropriate

hazardous locations certifications.

Process leaks could result in death or serious injury.

Do not remove the thermowell while in operation.

Install and tighten thermowells and sensors before applying pressure.

Electrical shock could cause death or serious injury.

Avoid contact with the leads and terminals. High voltage that may be present on leads can

cause electrical shock.

Contents

Wireless considerations . . . . . . . . . . . . . . . . . 5

Physical installation . . . . . . . . . . . . . . . . . . . . . 8

Verify operation . . . . . . . . . . . . . . . . . . . . . . .14

Reference Information . . . . . . . . . . . . . . . . .17

Power Module Replacement. . . . . . . . . . . .21

Product Certifications. . . . . . . . . . . . . . . . . .23

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Quick Start Guide

March 2015

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause

undesired operations.

This device must be installed to ensure a minimum antenna separation distance of 20 cm

from all person.

The Power Module may be replaced in a hazardous area. The Power Module has surface

resistivity greater than one giga-ohm and must be properly installed in the wireless device

enclosure. Care must be taken during transportation to and from the point of installation to

prevent electrostatic charge build-up.

NOTICE

Shipping considerations for wireless products (Lithium Batteries: Green Power Module,

model number 701PGNKF):

The unit was shipped to you without the Power Module installed. Please remove the Power

Module prior to shipping the unit.

Each Green Power Module contains one “D” size primary lithium-thionyl chloride battery.

Primary lithium batteries are regulated in transportation by the U. S. Department of

Transportation, and are also covered by IATA (International Air Transport Association), ICAO

(International Civil Aviation Organization), and ARD (European Ground Transportation of

Dangerous Goods). It is the responsibility of the shipper to ensure compliance with these or any

other local requirements. Please consult current regulations and requirements before shipping.

Shipping considerations for wireless products (Lithium Batteries: Black Power Module,

model number 701PBKKF):

The unit was shipped to you without the Power Module installed. Please remove the Power

Module prior to shipping the unit.

Each Black Power Module contains two “C” size primary lithium-thionyl chloride battery.

Primary lithium batteries are regulated in transportation by the U. S. Department of

Transportation, and are also covered by IATA (International Air Transport Association), ICAO

(International Civil Aviation Organization), and ARD (European Ground Transportation of

Dangerous Goods). It is the responsibility of the shipper to ensure compliance with these or any

other local requirements. Please consult current regulations and requirements before shipping

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March 2015

Quick Start Guide

NOTICE

Power Module Considerations (Green Power Module, model number 701PGNKF):

The Green Power Module with the wireless unit contains one “D” size primary lithium-thionyl

chloride battery (model number 701PGNKF). Each battery contains approximately 5.0 grams

of lithium. Under normal conditions, the battery materials are self-contained and are not

reactive as long as the batteries and the pack integrity are maintained. Care should be taken to

prevent thermal, electrical or mechanical damage. Contacts should be protected to prevent

premature discharge.

Battery hazards remain when cells are discharged.

Power Modules should be stored in a clean and dry area. For maximum Power Module life,

storage temperature should not exceed 30 °C.

Power Module Considerations (Black Power Module, model number 701PBKKF):

The Green Power Module with the wireless unit contains two “C” size primary lithium-thionyl

chloride battery (model number 701PGNKF). Each battery contains approximately 2.5 grams

of lithium, for a total of 5 grams in each pack. Under normal conditions, the battery materials

are self-contained and are not reactive as long as the batteries and the pack integrity are

maintained. Care should be taken to prevent thermal, electrical or mechanical damage.

Contacts should be protected to prevent premature discharge.

Battery hazards remain when cells are discharged.

Power Modules should be stored in a clean and dry area. For maximum Power Module life,

storage temperature should not exceed 30 °C.

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Quick Start Guide

March 2015

Wireless considerations

Power up sequence

The Power Module should not be installed on any wireless device until the Smart

Wireless Gateway is installed and functioning properly. Wireless devices should

also be powered up in order of proximity from the Smart Wireless Gateway,

beginning with the closest. This will result in a simpler and faster network

installation. Enable Active Advertising on the Gateway to ensure new devices join

the network faster. For more information, see the Smart Wireless Gateway

Manual (document number 00809-0200-4420).

Antenna position

Polymer housing (enclosure option code P)

The internal antenna is designed for multiple mounting orientations. The

transmitter should be mounted according to best practices for your temperature

measurement application. The transmitter should be approximately 3 ft (1 m)

from any large structure or building to allow clear communication to other

devices.

Aluminum housing (enclosure option code D)

The external antenna should be positioned vertically, either straight up or straight

down. The transmitter should be mounted according to best practices for your

temperature measurement application. The transmitter should be approximately

3 ft (1 m) from any large structure or building to allow clear communication to

other devices.

Figure 1. External Wireless Antenna Position (Aluminum Housing)

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Quick Start Guide

Conduit entry

Aluminum housing only

Upon installation, ensure that each conduit entry is either sealed with a conduit

plug using an approved thread sealant, or has an installed conduit fitting or cable

gland with approved threaded sealant.

Figure 2. Rosemount 248 Wireless Conduit Entries (Aluminum Housing)

A. Conduit entry

Field Communicator connections

Polymer housing

The Power Module must be installed in the device for the Field Communicator to

interface with the Rosemount 248 Wireless Temperature Transmitter. The Field

Communicator connections are located on the Green Power Module. To

communicate to the transmitter, begin by removing the power module cover.

This will expose the HART communication terminals located on the Green Power

Module. Next, connect the Field Communicator leads to the COMM port

connections on the Green Power Module.

This transmitter uses the Green Power Module; please order model number

701PGNKF. The Power Module is keyed and can only be inserted in one

orientation. Field communication with this device requires a HART-based Field

Communicator. Refer to Figure 3 for instructions on connecting the Field

Communicator to the Rosemount 248 Wireless.

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Quick Start Guide

March 2015

Figure 3. Field Communicator Connection (Polymer Housing)

Aluminum housing

The Power Module must be installed in the device for the Field Communicator to

interface with the Rosemount 248 Wireless Temperature Transmitter. The Field

Communicator connections are located on the terminal block. To communicate

to the transmitter, begin by removing the power module-side housing cover,

indicated as “Field terminals” by text located on the side of the device. This will

expose the terminal block and HART communication terminals. Next, connect

the Field Communicator leads to the COMM port connections on the terminal

block and connect the Black Power Module to supply power for configuration.

This transmitter uses the Black Power Module; please order model number

701PBKKF. The Power Module is keyed and can only be inserted in one

orientation. Field communication with this device requires a HART-based Field

Communicator. Refer to Figure 4 for instructions on connecting the Field

Communicator to the Rosemount 248 Wireless.

Figure 4. Field Communicator Connection (Aluminum Housing)

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March 2015

Quick Start Guide

Step 1: Physical installation

The Rosemount 248 Wireless can be installed in one of two configurations: Direct

Mount, where the sensor is connected directly to the 248 Wireless conduit entry,

or Remote Mount, where the sensor is mounted separately from the 248 Wireless

housing, then connected to the 248 Wireless via wiring or conduit. Choose the

installation sequence that corresponds to the mounting configuration.

Direct mount

Polymer housing

The direct mount installation should not be used when installing with a

Swagelok®fitting.

1. Remove the transmitter enclosure cover.

2. Remove the LCD display (if applicable).

3. Loosen the captive screws and Remove LCD adapter plate (if applicable).

Figure 5. Exploded View of LCD and Power Module Assembly (Polymer Housing)

4. Attach the sensor to the 248 Wireless housing using the threaded conduit

entry. Be sure to use an approved thread sealant on all connections.

5. Attach the sensor wiring to the terminals as indicated on Figure 15.

6. Reattach and secure LCD adapter plate to 5 in-lbs of torque (if applicable).

7. Reattach the LCD display (if applicable).

8. Reattach and tighten the transmitter enclosure cover.

9. Remove the power module cover.

10. Connect the Green Power Module.

Note

Wireless devices should be powered up in order of proximity from the Smart Wireless Gateway,

beginning with the closest device to the Gateway. This will result in a simpler and faster network

installation.

11. Reattach and tighten the power module cover.

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Quick Start Guide

March 2015

12. Always ensure a proper seal by installing the electronics housing cover(s) so

that polymer contacts polymer (i.e. no o-ring visible). Use Rosemount O-rings.

13. Provide 1.75-in. (45 mm) of clearance for units without an LCD display. Provide

3-in. (76 mm) of clearance for units with an LCD display for cover removal.

Figure 6. Direct Mount (Polymer Housing)

Note

Wireless devices should be powered up in order of proximity from the Smart Wireless Gateway,

beginning with the closest device to the Gateway. This will result in a simpler and faster network

installation.

Aluminum housing

The direct mount installation should not be used when installing with a Swagelok

fitting.

1. Install the sensor according to standard installation practices. Be sure to use an

approved thread sealant on all connections.

2. Attach the 248 Wireless housing to the sensor using the threaded conduit

entry.

3. Attach the sensor wiring to the terminals as indicated on the wiring diagram.

4. Connect the Black Power Module.

Note

Wireless devices should be powered up in order of proximity from the Smart Wireless Gateway,

beginning with the closest device to the Gateway. This will result in a simpler and faster network

installation.

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March 2015

Quick Start Guide

Figure 7. Exploded View of Power Module View (Aluminum Housing)

5. Close the housing cover and tighten to safety specification. Always ensure a

proper seal by installing the electronics housing covers so that metal touches

metal, but do not over tighten.

6. Position the antenna such that it is vertical, either straight up or straight

down. The antenna should be approximately 3 ft. (1 m) from any large

structures or buildings, to allow clear communication to other devices.

Figure 8. Direct Mount External Antenna Position (Aluminum Housing)

Note

Possible antenna rotation shown. Antenna rotation allows best practices for any configuration.

00825-0200-4248_RevCA.fm Page 10 Monday, March 30, 2015 9:22 AM

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