Rosemount 2120 Quick Start Manual
  1. Manuals
  2. Brands
  3. Rosemount Manuals
  4. Switch
  5. 2120
  6. Quick start manual

Rosemount 2120 Quick Start Manual

Full-featured vibrating fork liquid level switch
Hide thumbs Also See for 2120:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Reference Manual
Quick Start Guide
00825-0100-4030, Rev BA
August 2012
Rosemount 2120 Full-featured
Vibrating Fork Liquid Level Switch

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 2120 and is the answer not in the manual?

Questions and answers

Related Manuals for Rosemount 2120

Summary of Contents for Rosemount 2120

  • Page 1 Quick Start Guide 00825-0100-4030, Rev BA August 2012 Rosemount 2120 Full-featured Vibrating Fork Liquid Level Switch...
  • Page 2 Process leaks could result in death or serious injury Install and tighten process connectors before applying pressure  Do not attempt to loosen or remove process connectors while the 2120 is in service  Electrical shock could cause death or serious injury If the liquid level switch is installed in a high voltage environment and a fault condition or ...
  • Page 3 Dry condition. When the 2120 switch is used as a high level alarm, the liquid rises in the tank or pipe, making contact with the fork which then causes the output state to switch to a Wet condition.

  • Page 4: General Considerations

    (Figure The 2120 operates in process temperatures of –40 to 302 °F (–40 to 150 °C)  Figure 3. Environmental considerations Ensure there is adequate space outside the tank or pipe. A clearance of 1.2 in.

  • Page 5: Installation Recommendations

     Figure 4. Avoid product build-up around the forks Step 1: Physical installation 1. Install the 2120 according to standard installation practices, making sure to correctly align the fork using the alignment notch or groove (Figure 2. Use supports for extended fork lengths greater than 3.2 ft. (1 m) (Figure For the GL approval requirements, see reference manual 00809-0100-4030.
  • Page 6 August 2012 Quick Start Guide Figure 6. Example installations Threaded 2120 installation Flanged 2120 installation A. PTFE for NPT and BSPT (R) Thread B. Gasket for BSPP (G) Thread C. Fork Alignment Groove D. Fork Alignment Notch E. Fork Alignment Notch...
  • Page 7 Quick Start Guide August 2012 Figure 7. Insulation A. 3.9 in. (100 mm) Clearance All Around B. 5.9 in. (150 mm) C. Rockwool...

  • Page 8: Step 2: Electrical Installation

    Note: The values 20 - 500 shown are nominal; = 5 A, 40 ms (inrush) Neutral Live = Load Off see the 2120 U = 20 - 60 V Reference Manual < 4 mA 00809-0100-4030 = 20 - 500 mA...

  • Page 9: Quick Start Guide

    (dc) I < 4 mA + I (Ground) Note: The values shown are nominal; ) = 0 - 500 mA see the 2120 Reference Manual = 5 A, 40 ms (inrush) 00809-0100-4030 = U - 2.5 V OUT(ON) for complete data <...
  • Page 10 August 2012 Quick Start Guide Relay output electronics cassette (DPCO, green label) OPERATION MODE Warning Isolate Supply Before Removing Seconds Delay Dry On Dry On Wet On Wet On Fuse 0.5 (T) (Ground) Resistive Load Inductive Load cos φ = 1 ; cos φ...
  • Page 11 Quick Start Guide August 2012 NAMUR electronics cassette (light blue label) OPERATION MODE EN 50227 / NAMUR Dry On Mode Dry On Wet On Wet On Mode Seconds Delay = 2.2 ... 2.5 mA = 0.8 ... 1.0 mA A certified intrinsically safe isolating amplifier to IEC 60947-5-6 High level Dry = ON Low level Wet = ON...
  • Page 12 August 2012 Quick Start Guide 8/16 mA electronics cassette (dark blue label) OPERATION MODE Dry On Mode 8/16 mA Dry On Wet On Wet On Mode Seconds Delay 15 . .. 17 mA 24 Vdc Nominal Earth (Ground) 7.5 … 8.5 mA A certified intrinsically safe barrier must be used to meet IS requirements High level Dry = ON...

  • Page 13: Led Indication

    2 times every second Indication of successful calibration 3 times every second Internal PCB fault (microprocessor, ROM, or RAM) Problem (e.g. supply) 1. Refer to the “Replacement and Calibration of Electronic Cassettes” section in the 2120 Reference Manual (00809-0100-4030) or Manual Supplement (00809-0200-4030).

  • Page 14: Step 4: Verify Operation

    Magnetic test point The magnetic test-point is on the side of the housing, allowing a functional test of the 2120. By touching a magnet on the target, the output will change state for as long as the magnet is held there.

  • Page 15: Maintenance

    Suppress the cause of the interference switching Cassette has been fitted from another Fit the factory supplied cassette Rosemount 2120 and then calibrate 1. Refer to the “Replacement and Calibration of Electronic Cassettes” section in the 2120 Reference Manual (00809-0100-4030) or Manual Supplement (00809-0200-4030).

  • Page 16: Product Certifications

    Canadian Registration Number CRN 0F04227.2C Certificate Number The requirements of CRN are met when a 2120 vibrating fork level switch is configured with 316/316L stainless steel (1.4401/1.4404) wetted parts and either NPT threaded or 2-in. to 8-in. ASME B16.5 flanged process connections.

  • Page 17: Hazardous Locations Certifications

    Quick Start Guide August 2012 Hazardous locations certifications Note certified isolating amplifier to IEC 60947-5-6 is required for intrinsic safety if the  NAMUR electronics is used in a hazardous area installation A certified intrinsically safe barrier is required for intrinsic safety if the 8/16 mA ...
  • Page 18 August 2012 Quick Start Guide European approvals ATEX approvals E1 Certificate: Sira 05ATEX1129X Flameproof and Dust: ATEX Marking II 1/2 G D Ex d IIC T6...T2 Ga/Gb Ex tb IIIC T85 °C...T265 °C Db (See “Instructions specific to hazardous area installations (E1 and E7)” on page I1 Certificate: Sira 05ATEX2130X Intrinsic Safety and Dust: ATEX Marking...
  • Page 19 Class 1, Div 1, Groups A, B, C and D. 2. CSA and FM Explosion Proof approved versions of the 2120 are certified for use in ambient temperatures of –40 °F to 176 °F (–40 °C to 80 °C), and with a maximum process temperature of 302 °F (150 °C).
  • Page 20 Minimum ambient air temperature (Ta) = –40 °C Minimum process temperature (Tp) = –40 °C c. Pressure: Must not exceed the rating of the coupling/flange fitted. d. For electrical details and pressure ratings, see the 2120 Product Data Sheet 00813-0100-4030 or Reference Manual 00809-0100-4030. 10. Cable selection: a.
  • Page 21 2120 Reference Manual 00809-0100-4030. 2. The Non-incendive approved Rosemount 2120 may be used in hazardous locations with flammable gases and vapors Class 1 Division 2 Groups A, B, C, and D when installed in accordance with control drawing 71097/1179 or 71097/1315 in the 2120 Reference Manual 00809-0100-4030.
  • Page 22 Under certain extreme circumstances, the non-metallic parts incorporated in the enclosure of the Rosemount 2120 may generate an ignition-capable level of electrostatic charge. Therefore, when they are used for applications that specifically require group II equipment, the Rosemount 2120 shall not be installed in a location where the external conditions are conducive to the build-up of electrostatic charge on such surfaces.
  • Page 23 August 2012 Instructions specific to hazardous area installations (E1 and E7) Model numbers covered: 2120*****E1X**, 2120*****E1S**, 2120*****E7X**, 2120*****E7S** (“*” indicates options in construction, function and materials.) The following instructions apply to the equipment covered by certificate number Sira 05ATEX1129X and IECEx SIR 06.0051X 1.
  • Page 24 Minimum process temperature (Tp) = –40°C c. Pressure: Must not exceed the rating of the coupling/flange fitted. d. For electrical details and pressure ratings, see the 2120 Product Data Sheet 00813-0100-4030 or Reference Manual 00809-0100-4030. e. Year of manufacture: marked on the product label 11.
  • Page 25 The following instructions apply to the equipment covered by certificate number Sira 05ATEX2130X and IECEx Sir 06.0070X 1. The Intrinsically Safe approved versions of the 2120 may be used in a hazardous area with explosive gases and vapors with apparatus groups IIC, IIB, and IIA, and with temperature classes T1, T2, T3, T4, and T5 [ in Zones 0, 1, and 2].
  • Page 26 (i) The metallic alloy used for the enclosure material may be at the accessible surface of this equipment; in the event of rare accidents, ignition sources due to impact and friction sparks could occur. This shall be considered when the 2120 is being installed in locations that specifically require Equipment Protection...
  • Page 27 Quick Start Guide August 2012 b. Ensure the ambient air temperature (Ta) and the process temperature (Tp) are within the range detailed above for the T class of the specific explosive gases or vapors present. c. Ensure the ambient air temperature (Ta) and the process temperature (Tp) are within the range detailed above for the maximum surface temperature of the specific explosive dusts present.
  • Page 28 August 2012 Quick Start Guide Figure 11. EC Declaration of Conformity for Rosemount 2120...
  • Page 29 Quick Start Guide August 2012...
  • Page 30 August 2012 Quick Start Guide...
  • Page 31 Quick Start Guide August 2012...
  • Page 32 T 49 (8153) 9390, F49 (8153) 939172 Beijing Rosemount Far East © 2012 Rosemount Inc. All rights reserved. All marks property of owner. Instrument Co., Limited The Emerson logo is a trade mark and service mark of Emerson Electric Co No.

Table of Contents