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Installation Manual

19

Wiring

To wire the remote core processor to the transmitter:
1. Use one of the following methods to shield the wiring:

2. Do one of the following:

If you are using shielded cable, prepare the cable and apply shielded heat shrink 
as described in Step 6. The shielded heat shrink provides a shield termination 
suitable for use in the gland when using cable whose shield consists of foil and not 
a braid.

If you are using armored cable, prepare the cable as described in Step 6, but do 
not apply heat shrink – omit Steps 6d, e, f, and g. 

3. Identify the components shown in 

Figure 2-3

.

4. Remove the core processor lid.
5. Slide the gland nut and the clamping insert over the cable. See 

Figure 3-5

.

Installation method

Procedure

Unshielded wiring in continuous metallic conduit that provides 360° 

termination shielding for the enclosed wiring

Go to Step 8

A user-supplied cable gland with shielded cable or armored cable, 

terminate the shields in the cable gland. Terminate both the armored 

braid and the shield drain wires in the cable gland

Go to Step 8

A Micro Motion-supplied cable gland at the core processor housing

Go to Step 2

Summary of Contents for Micro Motion 3350

Page 1: ...Installation Manual 20001008 Rev BA February 2015 Micro Motion Model 3700 Transmitter MVD or Model 3350 Peripheral Installation manual for field mount ...

Page 2: ...en returning equipment These procedures ensure legal compliance with government transportation agencies and help provide a safe working environment for Micro Motion employees Failure to follow Micro Motion procedures will result in your equipment being refused delivery Information on return procedures and forms are available on our web support system at www micromotion com or by phoning the Micro ...

Page 3: ...s for ATEX Zone 1 9 1 5 Optional Orient the Model 3350 or Model 3700 9 Chapter 2 Mounting 11 2 1 Mount the applications platform 11 2 2 Mount the core processor 13 Chapter 3 Wiring 15 3 1 Connect input and output wiring 15 3 2 Connect the Model 3700 to the sensor 17 3 3 Wire the sensor to the remote core processor 22 3 4 Connect the power supply wiring 24 ...

Page 4: ...4 Model 3700 Transmitters or Model 3350 Peripherals Field Mount ...

Page 5: ... the parts shown in Figure 1 1 Figure 1 1 Field mount installation kit WARNING Improper installation in a hazardous area can cause an explosion For information about hazardous applications refer to the appropriate Micro Motion approval documentation shipped with the meter or available from the Micro Motion web site WARNING Hazardous voltage can cause severe injury or death Install transmitter and ...

Page 6: ...ere the ambient temperature is between 4 to 140 F 20 to 60 C 1 2 2 Dimensions Figure 1 2 Face view dimensions WARNING Improper installation in a hazardous area can cause an explosion Install the transmitter in an area that is compatible with the rating on the approvals tag See Figure 1 3 inches mm Rotate display cover as needed Rotate mounting bracket as needed 2 13 16 71 4 x 5 16 inch 9 mm diamet...

Page 7: ...gs view dimensions Approvals tag 5 1 16 inch 129 mm clearance for removal of circuit boards inches mm 11 5 16 288 6 1 8 158 15 1 2 394 8 11 16 221 5 x 3 4 14 NPT or 5 x M20 x 1 5 6H Case ground Mounting surface inches mm 2 x 15 16 24 1 7 8 48 2 x 2 13 17 71 10 3 8 265 7 1 2 191 5 3 4 147 ...

Page 8: ...Model 3350 frequency input is 500 feet 150 meters Figure 1 5 4 wire remote transmitter Figure 1 6 Remote core processor with remote transmitter Installation type Maximum cable length 4 wire remote transmitter See Figure 1 5 and Table 1 1 for maximum length of the 4 wire cable Remote core processor with remote transmitter See Figure 1 6 and Table 1 1 for maximum length of the 4 wire cable and the 9...

Page 9: ...e rotated on the applications platform Figure 1 7 provides orientation examples 1 Use the four supplied mounting bolt assemblies 2 Using a 13 mm hex wrench install the bolt assemblies to 12 ft lb 16 Nm of torque 3 Rotate the display cover if needed See the transmitter installation manual Table 1 1 Maximum cable lengths between sensor and transmitter Cable type Wire gauge Maximum length Micro Motio...

Page 10: ...s Field Mount Planning Figure 1 7 Orientation examples Conduit openings for non intrinsically safe input output wiring Conduit openings for intrinsically safe sensor wiring Display cover Conduit openings right Conduit openings down Conduit openings left ...

Page 11: ...nting see Section 2 1 2 2 1 1 Mount to a flat surface 1 Mount all four bolts to the same surface 2 If mounting surface is not flat use washers to shim the bracket 3 Do not secure bolts to any separate beams girders wall studs etc that can move independently Figure 2 1 Flat surface mounting example 4 x 5 16 inch or M8 bolt user supplied ...

Page 12: ...del 3700 Transmitters or Model 3350 Peripherals Field Mount Mounting 2 1 2 Mount to a pole Figure 2 2 Pole mounting example 4 x 5 16 inch nut user supplied 2 x 5 16 inch U bolt for 2 inch pipe user supplied ...

Page 13: ...o to Section 3 1 Figure 2 3 shows both types of core processors and mounting bracket Using the mounting bracket mount the core processor in a location compatible with the cable length requirements discussed in Section 1 2 Figure 2 3 Remote core processor and remote enhanced core processor components Core processor lid Upper conduit ring Core processor Lower conduit ring End cap Mounting bracket Re...

Page 14: ...14 Model 3700 Transmitters or Model 3350 Peripherals Field Mount Mounting ...

Page 15: ...igure 3 1 Use 22 to 16 AWG 0 35 to 1 5 mm2 twisted pair shielded wire Ground the cable shields at a single point only If more than two wires must be connected to a single terminal use a butt splice or spade lug to connect the wires Figure 3 1 Wiring terminals Intrinsically safe sensor wiring terminals blue terminal block Circuit board compartment Wiring compartment Should remain closed while power...

Page 16: ...r Designation 1 2 Primary 4 20 mA output HART 3 4 Secondary 4 20 mA output 5 6 Frequency input 5 7 Discrete input 1 5 8 Discrete input 2 11 B line 12 A line RS 485 output 20 16 Discrete output 3 20 17 Discrete output 2 20 18 Discrete output 1 20 19 Frequency output AC power supply Terminal 9 positive Terminal 10 negative Terminal 9 line L or L2 Terminal 10 neutral N or L1 DC power supply ...

Page 17: ...or documentation 2 Connect the cable to the core processor as described in the sensor documentation 3 To connect the cable to the transmitter a Identify the wires in the 4 wire cable Use the 4 wire cable supplied by Micro Motion This cable consists of one pair of 18 AWG 0 75 mm2 wires red and black for the VDC connection and one pair of 22 AWG 0 35 mm2 wire green and white for the RS 485 connectio...

Page 18: ...er Wiring the sensor to the remote core processor Core processor terminals 4 wire cable Model 3700 terminals Blue terminal block See Figure 3 1 Maximum cable length See Table 1 1 User supplied or factory supplied cable 16 RS 485B Green 15 RS 485A White 14 VDC Black 13 VDC Red RS 485B Green RS 485A White VDC Red VDC Black Core processor terminals 4 wire cable Model 3700 terminals Blue terminal bloc...

Page 19: ...le as described in Step 6 but do not apply heat shrink omit Steps 6d e f and g 3 Identify the components shown in Figure 2 3 4 Remove the core processor lid 5 Slide the gland nut and the clamping insert over the cable See Figure 3 5 Installation method Procedure Unshielded wiring in continuous metallic conduit that provides 360 termination shielding for the enclosed wiring Go to Step 8 A user supp...

Page 20: ... around the insulated wires leaving 3 4 inch 19 mm of foil or braid and drain wires exposed and separate the wires d Wrap the shield drain wires around the exposed foil twice See Figure 3 6 Cut off the excess wire Figure 3 6 Shield drain wires wrapped twice around exposed shield foil e Place the shielded heat shrink over the exposed shield drain wires The tubing should completely cover the drain w...

Page 21: ... gland body into the core processor housing conduit opening See Figure 3 9 Figure 3 9 Installing the gland body 7 Insert the wires through the gland body and assemble the gland by tightening the gland nut 8 Identify the wires in the 4 wire cable Use the 4 wire cable supplied by Micro Motion This cable consists of one pair of 18 AWG 0 75 mm2 wires red and black for the VDC connection and one pair o...

Page 22: ...core processor lid 12 To connect the cable to the transmitter connect the four wires from the core processor to the appropriate terminals on the transmitter See Table 3 2 and Figure 3 3 Do not leave bare wires exposed Do not ground the shield or drain wires at the transmitter 3 3 Wire the sensor to the remote core processor WARNING Do not twist the core processor as this will damage the sensor CAU...

Page 23: ... MVD transmitter Additional information for connecting the wires at the core processor is provided below a Identify the components shown in Figure 2 3 b Remove the core processor s end cap c Insert the 9 wire cable through the conduit opening d Connect the wires to the plugs supplied with the core processor e Insert the plugs into the sockets inside the lower conduit ring See Figure 3 11 Figure 3 ...

Page 24: ...0 in order to comply with low voltage directive 2006 95 EC For details see standard EN 61010 1 2010 clause 5 4 3 d Cable type Procedure Jacketed cable Ground the shield drain wires the black wire only on the core processor end by connecting it to the ground screw inside the lower conduit ring Do not ground to the core processor s mounting screw Do not ground the cable at the sensor junction box Sh...

Page 25: ... Japan T 81 3 5769 6803 F 81 3 5769 6844 Micro Motion Asia Emerson Process Management 1 Pandan Crescent Singapore 128461 Republic of Singapore T 65 6777 8211 F 65 6770 8003 Micro Motion United Kingdom Emerson Process Management Limited Horsfield Way Bredbury Industrial Estate Stockport SK6 2SU U K T 44 0870 240 1978 F 44 0800 966 181 2015 Micro Motion Inc All rights reserved The Emerson logo is a ...

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