Rosemount 148 Quick Start Guide

Quick Start Guide

00825-0100-4148, Rev GA

September 2016

Rosemount™ 148 Temperature

Transmitter

Quick Start Guide	September 2016

NOTICE

This guide provides basic guidelines for the Rosemount 148. It does not provide instructions for detailed configuration, diagnostics, maintenance, service, troubleshooting, or installations. Refer to the Rosemount 148 Reference Manual for more instruction. The manual and this guide are also available electronically on EmersonProcess.com/Rosemount.

Explosions could result in death or serious injury.

Installation of this transmitter in an explosive environment must be in accordance with the appropriate local, national, and international standards, codes, and practices. Review the Hazardous Locations Certifications for any restrictions associated with a safe installation.

Process leaks may cause harm or result in death.

Install and tighten thermowells or sensors before applying pressure.

Do not remove the thermowell while in operation.

Electrical shock can result in death or serious injury.

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

Conduit/cable entries

Unless marked, the conduit/cable entries in the transmitter housing use a 1/2–14 NPT thread form. Entries marked “M20” are M20 1.5 thread form. On devices with multiple conduit entries, all entries have the same thread form. Only use plugs, adapters, glands, or conduit with a compatible thread form when closing entries.

When installing in a Hazardous Location, use only appropriately listed or Ex certified plugs, adapters or glands in cable/conduit entries.

Contents
Software installation . . . . . . . . . . . . . . . . .	3	Connect the wiring . . . . . . . . . . . . . . . . . . .	6
Configure . . . . . . . . . . . . . . . . . . . . . . . . . .	3	Product Certifications . . . . . . . . . . . . . . . . .	9
Mount the transmitter . . . . . . . . . . . . . . .	4

September 2016

Quick Start Guide

1.0Software installation

1.Install the Rosemount 148 PC Programmer software.

a.Place the Rosemount 148 PC Programmer CD_ROM into the drive.

b.Run setup.exe from Windows NT, 2000, or XP.

2.When first using the Rosemount 148 PC software, configure the appropriate COM ports by selecting Port Settings from the Communicate menu.

3.Install MACTek Modem drivers completely before beginning bench configuration on the Rosemount 148 system.

Note

The software defaults to the first available COM port.

2.0 Configure

The Rosemount 148 must be configured for certain basic variables to operate. In many cases, all of these variables are pre-configured at the factory. Configuration may be required if the transmitter is not configured or if the configuration variables need revision. This can be done in two ways: by ordering factory-configuration by Emerson™ Process Management, or by using the Rosemount 148 PC Programming interface in a bench configuration setting.

The Rosemount 148 PC Programming Kit includes configuration software and a communication modem. The Rosemount 148 device will need an external power supply of 12–42.4 Vdc for configuration.

1.Hook up the transmitter and a load resistor (250–1100 ohms) wired in series with the power supply.

2.Attach the Modem in parallel with the load resistor and connect it to the PC.

See "Table 1: Rosemount 148 Programming Kit spare part numbers" for spares kit and re-order numbers. For more information, refer to the Rosemount 148 Reference Manual.

Table 1. Rosemount 148 Programming Kit spare part numbers

Product description	Part number

Programming Software (CD)	00148-1601-0002
Rosemount 148 Programmer Kit - USB	00148-1601-0003
Rosemount 148 Programmer Kit - Serial	00148-1601-0004

2.1 Verify transmitter configuration

If the transmitter has a sensor connected (either a test sensor or actual installation hardware), the configuration can be checked using the Information tab on the Rosemount 148 PC Programmer interface. Select Refresh to update the status and confirm that the transmitter has been configured correctly. If there are any problems, refer to the Rosemount 148 Reference Manual for troubleshooting suggestions.

Quick Start Guide	September 2016

3.0 Mount the transmitter

To prevent moisture from draining into the transmitter housing, mount the transmitter at a high point in the conduit run.

3.1 Typical European and Asia Pacific installation

Head mount transmitter with DIN plate style sensor

1.Attach the thermowell to the pipe or process container wall. Install and tighten the thermowell before applying process pressure.

2.Assemble the transmitter to the sensor.

a.Push the transmitter mounting screws through the sensor mounting plate.

b.Insert the snap rings (optional) into the transmitter mounting screw groove.

3.Wire the sensor to the transmitter.

4.Insert the transmitter-sensor assembly into the connection head.

a.Thread the transmitter mounting screw into the connection head mounting holes.

b.Assemble the extension to the connection head.

c.Insert the assembly into the thermowell.

5.Slip the shielded cable through the cable gland.

6.Attach a cable gland into the shielded cable.

7.Insert the shielded cable leads into the connection head through the cable entry.

8.Connect and tighten the cable gland.

9.Connect the shielded power cable leads to the transmitter power terminals. Avoid contact with sensor leads and sensor connections. (See Connect the wiring for instructions on grounding the shield wire.)

10.Install and tighten the connection head cover. Enclosure covers must be fully engaged to meet explosion-proof requirements.

A B C

A.Rosemount 148 Transmitter

B.Connection head

C.Thermowell

D.Transmitter mounting screws

E.Integral mount sensor with flying leads

F.Extension

September 2016	Quick Start Guide

3.2 Typical north and south american installation

Head mount transmitter with threaded sensor

1.Attach the thermowell to the pipe or process container wall. Install and tighten thermowells before applying process pressure.

2.Attach necessary extension nipples and adapters to the thermowell.

3.Seal the nipple and adapter threads with silicone tape.

4.Screw the sensor into the thermowell. Install drain seals if required for severe environments or to satisfy code requirements.

5.Pull the sensor wiring leads through the universal head and transmitter.

6.Mount the transmitter in the universal head by threading the transmitter mounting screws into the universal head mounting holes.

7.Mount the transmitter-sensor assembly into the thermowell. Seal adapter threads with silicone tape.

8.Install conduit for field wiring to the conduit entry of the universal head. Seal conduit threads with silicone tape.

9.Pull the field wiring leads through the conduit into the universal head.

10.Attach the sensor and power leads to the transmitter while avoiding contact with other terminals.

11.Install and tighten the universal head cover.

Note

Enclosure covers must be fully engaged to meet explosion-proof requirements.

A B D

C	E
A. Threaded thermowell	D. Universal head
B. Threaded style sensor	E. Conduit entry
C. Standard extension

Quick Start Guide	September 2016

3.3 Mounting to a DIN rail

To attach the Rosemount 148H to a DIN rail, assemble the appropriate rail mounting kit (part number 00248-1601-0001) to the transmitter as shown.

A. Mounting hardware

B. Transmitter

C. Rail clip

4.0Connect the wiring

Wiring diagrams are located on the top label of the transmitter.

An external power supply is required to operate the transmitter.

The power required across the transmitter power terminals is 12 to 42.4 Vdc (the power terminals are rated to 42.4 Vdc). To prevent damaging the transmitter, do not allow terminal voltage to drop below 12.0 Vdc when changing the configuration parameters.