Emerson Rosemount 1408H Manuale utente

Quick Start Guide

00825-0100-4480, Rev AA

October 2020

Rosemount™ 1408H

Level Transmitter

Non-Contacting Radar

1 About this guide

This Quick Start Guide provides basic guidelines for the Rosemount

1408H Level Transmitter. Refer to the 1408H Reference Manual for

more instructions.

1.1 Safety messages

WARNING

Failure to follow safe installation and servicing guidelines could result

in death or serious injury.

•Ensure the transmitter is installed by qualified personnel and in

accordance with applicable code of practice.

•Use the equipment only as specified in this Quick Start Guide and

the Reference Manual. Failure to do so may impair the protection

provided by the equipment.

•Repair, e.g. substitution of components, etc. may jeopardize

safety and is under no circumstances allowed.

Process leaks could result in death or serious injury.

•Handle the transmitter carefully.

•Install and tighten process connectors before applying pressure.

•Do not attempt to loosen or remove process connectors while the

transmitter is in service.

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.

CAUTION

Hot surfaces

The transmitter and process seal may be hot at high process

temperatures. Allow to cool before servicing.

Note

Be careful not to scratch or otherwise damage the PTFE sealing.

2 Mount transmitter on tank

2.1 Mount the Tri Clamp version

Procedure

1. Place a suitable gasket on top of the tank flange.

2. Lower the transmitter into the nozzle.

3. Tighten the clamp to the recommended torque (see the

manufacturer’s instruction manual).

2.2 Mount the dairy coupling (DIN 11851)

Procedure

1. Place a suitable gasket on top of the tank flange.

2. Lower the transmitter into the nozzle.

3. Tighten the lock nut to the recommended torque (see the

manufacturer’s instruction manual).

2.3 Mount the VARIVENT® version

Procedure

1. Mount a suitable O-ring on the adapter.

2. Lower the transmitter into the nozzle.

3. Tighten the clamp to the recommended torque (see the

manufacturer’s instruction manual).

2.4 Mount on a threaded connection

Procedure

1. Grease the transmitter thread with lubricating paste.

Note

The paste must be approved for the application and

compatible with the elastomers used.

2. Mount the transmitter on the tank.

39 mm

Torque 310 in-lb (35 N-m)

3 Prepare the electrical connections

3.1 Connector type

M12 (A-coded)

3.2 Power supply

The transmitter operates on 18-30 Vdc at the transmitter terminals.

3.3 Outputs

The transmitter provides two configurable outputs:

Output 1 Digital output / IO-Link mode

Output 2 Digital output or active 4-20 mA analog output

3.4 Internal power consumption

< 2 W (normal operation at 24 Vdc, no outputs)

< 3.6 W (normal operation at 24 Vdc, digital and analog outputs

active)

3.5 Wiring diagram

Figure 3-1: Connection

OUT2

L+

OUT1/IO-Link

Table 3-1: Pin Assignment

Pin Wire color(1) Signal

1 BN Brown L+ 24 V power supply

2 WH White OUT2 Digital output or active 4-20 mA

analog output

3 BU Blue L- Ground line

4 BK Black OUT1/IO-Link Digital output or IO-Link mode

(1) According to IEC 60947-5-2.

Figure 3-2: Example Circuits

2: OUT2

4: OUT1

L+

2: OUT2

4: OUT1

L+

2: OUT2

4: OUT1

L+

2: OUT2

4: OUT1

A. 2 x Digital output PnP

B. 2 x Digital output NpN

C. 1 x Digital output PnP / 1 x Analog output

D. 1 x Digital output NpN / 1 x Analog output

4 Power up transmitter

Prerequisites

Procedure

1. Verify the power supply is disconnected.

2. Insert the M12 connector and screw tight.

See the manufacturer’s instruction manual for recommended

torque.

3. Connect the power supply.

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