Emerson Rosemount 1208A User manual
Quick Start Guide
00825-0100-7062, Rev AA
June 2022
Rosemount™ 1208A Level and Flow
Transmitter
Non-Contacting Radar
Contents
About this guide...........................................................................................................................3
Installing on a tank....................................................................................................................... 5
Prepare the electrical connections................................................................................................8
Power up transmitter................................................................................................................. 10
Connect the transmitter to the IO-Link.......................................................................................11
Get started with your preferred configuration tool..................................................................... 12
Perform the basic setup..............................................................................................................14
Quick Start Guide June 2022
2 Rosemount 1208A Level and Flow Transmitter
1 About this guide
This Quick Start Guide provides basic guidelines for the Rosemount 1208A
Level and Flow Transmitter. Refer to the 1208A 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.
WARNING
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.
June 2022 Quick Start Guide
Quick Start Guide 3
CAUTION
Hot surfaces
The transmitter and process seal may be hot at high process temperatures.
Allow to cool before servicing.
1.2 Bracket mounting
See the documentation supplied with the bracket kit.
Quick Start Guide June 2022
4 Rosemount 1208A Level and Flow Transmitter
2 Installing on a tank
2.1 Mount the flange
Procedure
1. Place a suitable gasket on the tank flange.
2. Place the flange over the gasket.
3. Tighten the bolts and nuts with sufficient torque for the flange and
gasket choice.
4. Apply appropriate thread sealant to the transmitter threads.
Note
Only for NPT threaded tank connection.
June 2022 Quick Start Guide
Quick Start Guide 5
5. Install and hand tighten the transmitter.
Note
The gasket is necessary for the G threaded version only.
2.2 Mount the NPT threaded adapter
Procedure
1. Apply appropriate thread sealant to the outer threads.
2. Mount the threaded adapter on the tank.
60 mm
Quick Start Guide June 2022
6 Rosemount 1208A Level and Flow Transmitter
3. Apply appropriate thread sealant to the transmitter threads.
4. Install and hand tighten the transmitter.
June 2022 Quick Start Guide
Quick Start Guide 7
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
4
1
3
2
BN
WH
BK
BU
1
4
2
3
OUT2
L+
L
OUT1/IO-Link
Table 3-1: Pin Assignment
Pin Wire color(1) Signal
1 BN Brown L+ 24 V
2 WH White OUT2 Digital output or active 4-20 mA
analog output
3 BU Blue L- 0 V
4 BK Black OUT1/IO-Link Digital output or IO-Link mode
(1) According to IEC 60947-5-2.
Quick Start Guide June 2022
8 Rosemount 1208A Level and Flow Transmitter
Figure 3-2: Example Circuits
2: OUT2
4: OUT1
4
1
3
2
BN
WH
BK
BU
L+
L
A
2: OUT2
4: OUT1
4
1
3
2
BN
WH
BK
BU
L+
L
C
2: OUT2
4: OUT1
4
1
3
2
BN
WH
BK
BU
L+
L
D
4
1
3
2
BN
WH
BK
BU
L+
L
2: OUT2
4: OUT1
B
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
June 2022 Quick Start Guide
Quick Start Guide 9
4 Power up transmitter
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.
Quick Start Guide June 2022
10 Rosemount 1208A Level and Flow Transmitter
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