Installation Manual 20002298, Rev CC December 2010 Micro Motion® F-Series Coriolis Flow and Density Sensors
Safety and approval information This Micro Motion product complies with all applicable European directives when properly installed in accordance with the instructions in this manual. 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 internet at www.micromotion.com/atex or through your local Micro Motion support center.
Contents Contents Chapter 1 Planning ...........................................................................................................................1 1.1 1.2 1.3 Chapter 2 Mounting .........................................................................................................................4 2.1 2.2 Chapter 3 Installation checklist ........................................................................................................................1 Best practices ............
Contents ii Micro Motion F-Series
Planning 1 Planning Topics covered in this chapter: • • • 1.1 Installation checklist Best practices Environmental limits Installation checklist □ Make sure that the hazardous area specified on the sensor approval tag is suitable for the environment in which the sensor is installed. □ Verify that the local ambient and process temperatures are within the limits of the sensor. See Section 1.3. □ If your sensor has an integral transmitter, no wiring is required between the sensor and transmitter.
Planning □ For best performance, follow Micro Motion recommendations for sensor orientation (see Table 1-3). The sensor will work in any orientation as long as the flow tubes remain full of process fluid. Table 1-3: Recommended sensor orientation Liquids Gases Slurries and self-draining applications □ 1.2 Install the sensor so that the flow direction arrow on the sensor matches the actual forward flow of the process.
Planning Figure 1-1: Environmental limits for F-Series sensors Gray area = Mount transmitter remotely (use junction box) Ambient temperature of core processor or transmitter in °F (°C) 176 (80) 140 (60) 140 (60) 104 (40) 81 (27) 68 (20) 32 (0) –4 (–20) –40 (–40) –76 (–60) –112 (–80) –148 (–100) –148 (–100) –76 (–60) –4 (–20) 68 (20) 140 (60) 212 (100) 284 (140) 356 (180) 400 (204) Maximum process temperature in °F (°C) Notes • • • • • • Installation Manual High-temperature sensors: • Am
Mounting 2 Mounting Topics covered in this chapter: • • 2.1 Mount the sensor Attach extended electronics Mount the sensor Use your common practices to minimize torque and bending load on process connections. Tip To reduce the risk of condensation or excessive moisture, the conduit opening should not point upward (if possible). The conduit opening of the junction box or core processor can be rotated freely to facilitate wiring. Procedure Mount the sensor in the pipeline (see Figure 2-1).
Mounting CAUTION! Do not lift the sensor by the electronics or purge connections. Lifting the sensor by the electronics or purge connections can damage the device. 2.2 Attach extended electronics If you ordered a sensor with extended electronics, you will need to install the extender onto the sensor case. Note Extended core processors are matched at the factory to specific sensors. Keep each core processor together with the sensor with which it was shipped.
Mounting Figure 2-2: Feedthrough and extender components A B C E G D F H A. B. C. D. E. F. G. H. 6 Transmitter or core processor Extender Plastic plug Plastic cap O-ring Clamping ring Clamping screw Feedthrough 2. Loosen the clamping screw and remove the clamping ring. Leave the O-ring in place on the feedthrough. 3. Remove and recycle the plastic plug from the extender. 4.
Wiring 3 Wiring Topics covered in this chapter: • • • 3.1 Options for wiring Connect 4-wire cable Connect 9-wire cable Options for wiring The wiring procedure you follow depends on which electronics option you have. See Table 3-1 for the wiring options for each sensor electronics option. Table 3-1: Wiring procedures by electronics option Electronics option Wiring procedure Integral transmitter No wiring required between sensor and transmitter.
Wiring Step 1: Cable preparation Remove the core processor cover Cable glands Cable layout Metal conduit Gland supplier Micro Motion cable gland User-supplied cable gland Run conduit to sensor Pass the wires through the gland nut and clamping insert. Gland nut Pass the wires through the gland Clamping insert Lay cable in conduit Go to Step 3 NPT M20 Gland type 1. Strip 4-1/2 inch (115 mm) of cable jacket. 2. Remove the clear wrap and filler material. 3.
Wiring Step 2: Shield termination From Step 1 Micro Motion cable gland Braided (armored cable) Cable shield type User-supplied cable gland Gland supplier Foil (shielded cable) NPT Gland type Apply the Heat Shrink 1. Slide the shielded heat shrink over the drain wires. Ensure that the wires are completely covered. 2. Apply heat (250 °F or 120 °C) to shrink the tubing. Do not burn the cable. 3. Position the clamping insert so the interior end is flush with the braid of the heat shrink.
Wiring Step 3: Terminal connections From Step 1 or 2 Standard core processor Core processor type Connect the wires to the core processor terminals: Red wire > Terminal 1 (Power supply +) Black wire > Terminal 2 (Power supply –) White wire > Terminal 3 (RS-485/A) Green wire > Terminal 4 (RS-485/B) Reinstall and tighten the core processor cover Enhanced core processor Connect the wires to the core processor terminals: Red wire > Terminal 1 (Power supply +) Black wire > Terminal 2 (Power supply –) White
Wiring Installation Manual 3. Match the wires color for color. For wiring at the transmitter or remote core processor, refer to the transmitter documentation. 4. Tighten the screws to hold the wires in place. 5. Ensure integrity of gaskets, then tightly close and seal the junction box cover and all housing covers on the transmitter or core processor. 6. Refer to the transmitter installation manual for signal and power wiring instructions.
Grounding 4 Grounding The sensor must be grounded according to the standards that are applicable at the site. The customer is responsible for knowing and complying with all applicable standards. Prerequisites Micro Motion suggests the following guides for grounding practices: • In Europe, IEC 79-14 is applicable to most installations, in particular Sections 12.2.2.3 and 12.2.2.4. • In the U.S.A. and Canada, ISA 12.06.01 Part 1 provides examples with associated applications and requirements.
Supplementary information 5 Supplementary information Topics covered in this chapter: • • 5.1 Purge the sensor case Pressure ratings for EN-1092 flanges Purge the sensor case If the sensor has purge fittings, they should remain sealed at all times. After a purge plug has been removed, the sensor case should be purged with argon or nitrogen and resealed. Purging the case protects internal components. The sensor is purged of all oxygen and sealed at the factory.
Supplementary information 4. Connect the supply of nitrogen or argon gas to the inlet purge connection or open inlet purge line. Leave the outlet connection open. • Exercise caution to avoid introducing dirt, moisture, rust, or other contaminants into the sensor case. • If the purge gas is heavier than air (such as argon), locate the inlet lower than the outlet, so that the purge gas will displace air from bottom to top.
Supplementary information Figure 5-1: Pressure ratings for EN-1092 flanges 160 120 100 bar 80 A B and C D 60 E 40 20 0 0 50 150 200 250 300 350 400 427 °C A. B. C. D. E.
*20002298* 20002298 Rev CC 2010 Micro Motion Inc. USA Worldwide Headquarters 7070 Winchester Circle Boulder, Colorado 80301 T +1 303-527-5200 T +1 800-522-6277 F +1 303-530-8459 www.micromotion.com Micro Motion Europe Emerson Process Management Neonstraat 1 6718 WX Ede The Netherlands T +31 (0) 318 495 555 F +31 (0) 318 495 556 www.micromotion.
