ABB FieldKey NHU200 Manuale utente

Quick-start Guide SOI/NHU200-EN

FieldKey NHU200

Wireless adapter

1Health and safety

To ensure that our products are safe and without risk to health,

the following points must be noted:

1. The relevant sections of these instructions must be read

carefully before proceeding.

2. Warning labels on containers and packages must be

observed.

3. Installation, operation, maintenance and servicing must only

be carried out by suitably trained personnel and in

accordance with the information given and site procedures.

Product disposal

Refer to the User Guide (OI/NHU200–EN) for disposal

information.

2Installation overview

Ensure the intended field instrument has a tag and message

configured – see section 6:

1. Remove the FieldKey from the box.

2. Attach the antenna.

3. Attach the FieldKey to the field instrument (remove the

antenna to help rotate the housing).

4. Rotate housing for best antenna direction (normally vertical).

5. Lock the FieldKey via the locking nut and set or grub screw.

6. Make electrical connection to the FieldKey (see Section 5)

and then wait at least 3 minutes.

7. Connect HART configuration tool and set Network ID, Join

Key and FieldKey Tag.

8. Set the join mode to Join Now.

9. Monitor the join status.

3Mechanical installation

The WirelessHART adapter can be fitted in the following ways:

Via a spare instrument cable gland.

If no cable gland is available use the T-Piece (option).

Connect the adapter at a junction box located in the 4 to

20 mA signal loop.

4Antenna direction and locking

The antenna can be rotated through almost 360° and fixed in

place by rotating the locking nut and tightening the set or grub

screw with the Allen key.

The best position for the antenna is often in a vertical direction.

European countries only.

Locking Nut

SOI/NHU200-EN 03.2011

5Electrical connection

Connect the FieldKey in series with the 4 to 20 mA loop.

1. Use the connector on the negative (–ve) wire as shown.

2. Install the AO coupler for use with positioners.

6Adapter commissioning

Information required:

the Join Key (as set in the Gateway)

the Network ID (as set in the Gateway)

Red (+ve)

Black (–ve) Connector

4 to 20 mA

Insert loop wire

FieldKey

Connector (–ve Wire)

Push to insert FieldKey wire

4 to 20 mA loop Positioner housing

–ve

+ve

–ve

T1 = FieldKey negative (Black)

T2 = Loop negative

T3 = Loop positive

T4 = Instrument positive

AO Coupler

HART tree for FieldKey NHU200 Wireless Adapter

Poll Address

Tag

Device

Long tag

Message

Descriptor

Date

Network ID

Key 1

Key 2

Key 3

Key

Join mode

Network Search time

Identify

Network

ABB Limited

Process Automation

Howard Road

St. Neots

Cambridgeshire

PE19 8EU

Tel:+44 (0)1480 475321

Fax:+44 (0)1480 217948

We reserve the right to make technical changes or

modify the contents of this document without prior

notice. With regard to purchase orders, the agreed

particulars shall prevail. ABB does not accept any

responsibility whatsoever for potential errors or

possible lack of information in this document.

We reserve all rights in this document and in the

subject matter and illustrations contained therein. Any

reproduction, disclosure to third parties or utilization of

its contents – in whole or in parts – is forbidden without

prior written consent of ABB.

3KXN674200R4101

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