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Installation Manual
Quick Reference Guide
P/N 20001008, Rev. B
August 2005
Model 3700 Transmitter
(MVD) or
Model 3350 Peripheral
Installation Instructions for
Field-Mount
For technical support, phone the support center nearest you:
•
In the U.S.A., phone 1-800-522-MASS
(1-800-522-6277)
•
In Canada and Latin America, phone
(303) 527-5200
•
In Asia, phone (65) 6770-8155
•
In the U.K., phone 0800 - 966 180 (toll-free)
•
Outside the U.K., phone +31 (0) 318 495 670
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Summary of Contents for Emerson 3700
- Page 1 Quick Reference Guide P/N 20001008, Rev. B August 2005 Model 3700 Transmitter (MVD) or Model 3350 Peripheral Installation Instructions for Field-Mount For technical support, phone the support center nearest you: • In the U.S.A., phone 1-800-522-MASS (1-800-522-6277) • In Canada and Latin America, phone (303) 527-5200 •...
- Page 2 Follow all instructions to ensure transmitter will operate correctly. ©2005, Micro Motion, Inc. All rights reserved. Micro Motion is a registered trademark of Micro Motion, Inc. The Micro Motion and Emerson logos are trademarks of Emerson Electric Co. All other trademarks are property of their respective owners.
- Page 3 European installations This Micro Motion product complies with all applicable European directives when properly installed in accordance with the instructions in this quick reference guide. Refer to the EC declaration of conformity for directives that apply to this product. The EC declaration of conformity, with all applicable European directives, and the complete ATEX Installation Drawings and Instructions are available on the web at www.micromotion.com/atex or through your local Micro Motion support center.
- Page 4 STEP 1. Choosing a location Choose a location for the transmitter based on the requirements described below. WARNING Improper installation in a hazardous area could cause an explosion. Install the transmitter in an area that is compatible with the rating on the approvals tag. See Figure 3. Environmental requirements Install the Model 3350/3700 according to specified limits: •...
- Page 5 Figure 2. Dimensions – face view (305) inches (mm) (279) 4 x 5/16-inch (9 mm) diameter 9 3/16 (234) 2 13/16 (71) (102) Mounting bracket can be rotated as needed 3 5/8 Display cover can be (92) rotated as needed (152) Figure 3.
- Page 6 Figure 4. Dimensions – conduit openings view 2 x 2 13/17 inches (71) 1 7/8 (mm) (48) 2 x 15/16 (24) Case ground 5 x 3/4–14 NPT 5 x M20 x 1.5 – 6H 10 3/8 (265) 7 1/2 (191) 5 3/4 (147) Mounting surface...
- Page 7 Figure 5. 4-wire remote transmitter Sensor Model 3700 4-wire cable Core processor (standard or enhanced) Figure 6. Remote core processor with remote transmitter Model 3700 Sensor 4-wire cable Core processor 9-wire cable (standard only) Junction box Table 1. Maximum cable lengths Cable type Wire gauge Maximum length...
- Page 8 STEP 2. Preparing conduit openings for ATEX Zone 1 If the Model 3350/3700 carries an ATEX Zone 1 approval: 1. Remove thread protectors from conduit openings (see Figure 7). 2. Install factory-supplied cable glands or user-supplied EExe cable entry devices in conduit openings that are in use. 3.
- Page 9 STEP 4. Mounting the applications platform For flat-surface mounting, see Figure 8. For pole mounting, see Figure 9. Figure 8. Mounting to a flat surface • Mount all four bolts to the same surface. • If mounting surface is not flat, use washers to shim the bracket.
- Page 10 STEP 5. Mounting the core processor This step is required only for remote core processor with remote transmitter installations (see Figure 6). If you have a 4-wire remote installation, go to Step 6. Figure 10 shows the remote core processor and mounting bracket. Using the mounting bracket, mount the core processor in a location compatible with the cable length requirements discussed in Step 1.
- Page 11 Figure 11. Wiring terminals Circuit board Lockout device compartment (not supplied with all units) Non-intrinsically safe input/output wiring Intrinsically safe terminals sensor wiring terminals (gray terminal block) (blue terminal block) Wiring compartment Should remain closed Power supply while power is on ground Label for sensor wiring terminals...
- Page 12 Figure 12. Wiring terminal labels Model 3350/3700 with AC Model 3350/3700 with DC power supply power supply Terminal 9: Terminal 9: line positive (L or L2) Terminal 10: Terminal 10: neutral negative (N or L1) STEP 7. Connecting the Model 3700 to the sensor If you are installing the Model 3350 applications peripheral, this step is not required.
- Page 13 Installation options The Model 3700 can be wired to the sensor in either of the following configurations: • 4-wire remote transmitter (requires a 4-wire cable; see Figure 5 and Wiring instructions for 4-wire remote installations) • Remote core processor with remote transmitter (requires both a 4-wire and a 9-wire cable;...
- Page 14 Figure 13. 4-wire cable to Model 3700 – standard core processor Core processor 4-wire cable Model 3700 terminals terminals blue terminal block Maximum cable length: (see Figure 11) see Table 1 RS-485B VDC+ (Green) (Red) User-supplied or factory-supplied cable VDC– RS-485A (Black) (White)
- Page 15 Wiring instructions for remote core processor with remote transmitter There are two phases to this procedure: • Wiring the remote core processor to the transmitter • Wiring the sensor to the remote core processor To wire the remote core processor to the transmitter: 1.
- Page 16 4 1/2 in (114 mm) 3/4 in (19 mm) Gland nut Gland clamping insert 7/8 in (22 mm) 7/8 in Gland body (22 mm) Shielded heat shrink 4. For connection at the core processor housing, prepare shielded cable as follows (for armored cable, omit steps d, e, f, g): a.
- Page 17 Shielded heat shrink completely covers exposed drain wires g. Position gland clamping insert so the interior end is flush with the heat shrink. h. Fold the cloth shield or braid and drain wires over the clamping insert and approximately 1/8 inch (3 mm) past the O-ring. Install the gland body into the core processor housing conduit opening.
- Page 18 Power supply + RS-485B (Red wire) (Green wire) RS-485A (White wire) Power supply – (Black wire) Core processor housing internal ground screw • For connections to earth ground (if core processor cannot be grounded via sensor piping and local codes require ground connections to be made internally) •...
- Page 19 1. Refer to Micro Motion’s 9-Wire Flowmeter Cable Preparation and Installation Guide for instructions on cable shielding and preparation: • At the sensor end, follow the instructions for your cable type. • At the core processor end, follow the instructions for your cable type with an MVD transmitter.
- Page 20 If using shielded or armored cable: a. 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.
- Page 21 Connect the Model 3350/3700 to a power supply as follows: 1. Use 18 to 12 AWG (0,75 to 4,0 mm ) wire. 2. Using a flat-head screwdriver, loosen the captive screws that secure the display cover to the housing. 3. Ground the transmitter as follows: •...
- Page 24 Republic of Singapore +31 (0) 318 495 689 (65) 6777-8211 (65) 6770-8003 Micro Motion United Kingdom Micro Motion Japan Emerson Process Management Limited Emerson Process Management Horsfield Way Shinagawa NF Bldg. 5F Bredbury Industrial Estate 1-2-5, Higashi Shinagawa Stockport SK6 2SU U.K.