Emerson Rosemount 148 Manuale utente
Quick Start Guide
00825-0200-4148, Rev AA
April 2019
Rosemount™ 148 Temperature
Transmitter
Safety Messages
NOTICE
This guide provides basic guidelines for installing the Rosemount™ 148 Temperature Transmmitter. It
does not provide instructions for detailed configuration, diagnostics, maintenance, service,
troubleshooting, or installations. Refer to the Rosemount 148 Temperature Transmitter Reference
Manual for more instruction. The manual and this guide are also available electronically at
Emerson.com/Rosemount.
WARNING
Explosions
Explosions could result in death or serious injury.
Installation of device in an explosive environment must be in accordance with appropriate
local, national, and international standards, codes, and practices.
Review the Hazardous Locations Certifications for any restricions associated with a safe
installation.
WARNING
Process leaks
Process leaks could result in death or serious injury.
Install and tighten thermowells or sensors before applying pressure.
Do not remove the thermowell while in operation.
WARNING
Electrical shock
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.
WARNING
Conduit/cable entries
Unless marked, the conduit/cable entries in the transmitter housing use a ½-14 NPT thread
form. Entries marked "M20" are M20 X 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 these
entries.
When installing in a hazardous location, use only appropriately listed or Ex certified plugs,
glands, or adapters in cable/conduit entries.
Quick Start Guide April 2019
2 Rosemount 148
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of
end users’ equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your
system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true
for all systems used within the facility.
Contents
Software installation.................................................................................................................... 5
Configuration...............................................................................................................................6
Mount the transmitter..................................................................................................................7
Connect the wiring.....................................................................................................................12
Product certifications................................................................................................................. 17
April 2019 Quick Start Guide
Quick Start Guide 3
Quick Start Guide April 2019
4 Rosemount 148
1 Software installation
Procedure
1. Place the Rosemount™ 148 PC Programmer CD_ROM into the drive.
2. Run setup.exe from Windows™ XP, 7, 8, or 10.
3. When first using the software, configure the appropriate COM ports
by selecting Port Settings from the Communicate menu.
4. Install MACTek® Modem drivers completely before beginning bench
configuration on the Rosemount 148 system.
Note
The software defaults to the first available COM port.
April 2019 Quick Start Guide
Quick Start Guide 5
2 Configuration
2.1 Configuring the Rosemount 148 Temperature
Transmitter
The Rosemount 148 must be configured for certain basic variables to
operate. Transmitters are pre-configured in the factory to order
specifications or factory defaults. 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
Automation Solutions, 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. To configure the transmitter:
Procedure
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.
2.2 Verify the 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
Temperature Transmitter Reference Manual for troubleshooting
suggestions.
Quick Start Guide April 2019
6 Rosemount 148
3 Mount the transmitter
3.1 Typical European and Asia Pacific installation
Head mount transmitter with DIN plate style sensor
Procedure
1. Attach the thermowell to the pipe or process container wall. Install
and tighten thermowells before applying process pressure.
2. Assemble the transmitter to the sensor.
a) Push the transmitter mounting screws through the sensor
mounting plate.
b) Push the transmitter mounting screws through the sensor
mounting plate.
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 though 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. Connect and tighten the cable gland.
8. Connect the shielded power cable leads to the transmitter power
terminals. Avoid contact with sensor leads and sensor connections.
9. Install and tighten the connection head cover. Enclosure covers must
be fully engaged to meet explosion-proof requirements.
April 2019 Quick Start Guide
Quick Start Guide 7
Figure 3-1: Typical European and Asia Pacific Installation
A. Transmitter mounting screws
B. Rosemount 148 Transmitter
C. Integral mount sensor with flying leads
D. Connection head
E. Extension
F. Thermowell
3.2 Typical North and South American install
Head mount transmitter with threaded sensor.
Procedure
1. Attach the thermowell to the pipe or process container wall. Install
and tighten the thermowell before applying process pressure.
2. Attach necessary extension nipples and adapters to the thermowell.
Seal the nipple and adapter threads with silicone tape.
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. Avoid contact
with other terminals.
Quick Start Guide April 2019
8 Rosemount 148
11. Install and tighten the universal head cover.
Note
Enclosure covers must be fully engaged to meet explosion-proof
requirements.
Example
Figure 3-2: Typical North and South American Installation
A. Threaded thermowell
B. Standard extension
C. Threaded style sensor
D. Universal head
E. Conduit entry
3.3 Mount the Rosemount 148H to a DIN rail
To attach the Rosemount 148H to a DIN rail, assemble the appropriate
railmounting kit (part number 00248-1601-0001) to the transmitter as
shown.
April 2019 Quick Start Guide
Quick Start Guide 9
Figure 3-3: Mounting to DIN Rail
C
B
A
A. Mounting hardware
B. Transmitter
C. Rail clip
3.4 Rail mount transmitter with remote mount sensor
The least complicated assembly uses:
•Remote mounted transmitter
•Integral mount sensor with terminal block
•Integral style connection head
•Standard extension
•Threaded thermowell
Refer to the Metric Sensor Product Data Sheet for complete sensor and
mounting accessory information.
3.5 Rail mount transmitter with threaded sensor
The least complicated assembly uses:
Quick Start Guide April 2019
10 Rosemount 148
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