RS85 Vibrating fork level switch

Transcription

1 Data sheet DS/-EN Rev. P Multi-option liquid level switch K-TEK Level products Measurement made easy Features Direct replacement for ultrasonic Gap switches, RF capacitance switches, float switches and other technologies Immune to most coating or build-up on sensor Robust sensing element 3/4 and 1 (NPT, BSPT) threaded process connections Choice of international flanges and range of tri-clamp fittings and probe finishes Single or dual compartment housing with viewing cover Field selectable parameters with external magnet or internal pushbuttons (fail safe, density, time delay) Temperatures between -40 o F to 350 o F Pressures to 2000 psig (137.8 bar) Viscosity up to cp Density from 0.52 to 2.0 Modular electronics with alarm status LED Self-test diagnostics CRN pressure directive Remote mount electronics option

2 Specifications Mechanical Housing Type Electronics Temperature Specific Gravity Viscosity Remote Mounting Process Temperature Process Pressure Process Connection Probe Length Approvals Single Compartment Powder Coated Aluminum (standard) Optional: Dual Compartment (Powder Coated Aluminum) -40 o F to 158 o F (-40 o C to 70 o C) Variable Setpoint Sensitivity (0.52 to 2.0 SG) Up to 20,000 cp Maximum length of 20 ft. from sensing probe to the remote electronics -40 o F to 250 o F (-40 o C to o C) 0 to 2000psig (137.8 bar) 3/4 NPT (standard) 3-3/8 (85.8 mm) (standard) Optional: 4-3/8 ( mm) Electrical Input Power Relay Contact Rating Repeatability Static Protection Selectable Fail-safe Adjustable Time Delay Cable Entry Power Consumption VAC, 50-60Hz VDC 1 x DPDT Resistive: VAC; 8 30 VDC Inductive: 1/2 240 VAC, 1/4 120 VAC 0.1 (2.6mm) Peak Surge Current: 800 Amps; Clamp Voltage: 75 Volts High or Low 0.5 to 35 seconds 2 x 3/4 NPT (Single Compartment) 1 x 1/2 NPT (Dual Compartment) 1 x 3/4 NPT (Dual Compartment with Relay) 1.5 Watts Factory Mutual System P CL1, Div1 ABCD, CLIII EFG Canadian s Association ATE/IEC P CL1, Div1&2 ABCD, CLII, III EFG, CRN Compliant II 1/2G Ex d IIC T5 Ga/Gb (-40 C Tamb 66 C) II 1/2G Ex d IIC T6 Ga/Gb (-40 C Tamb 50 C) II 1D Ex ta IIIC T150 C Da (-40 C Tamb 66 C) MODULAR ELECTRONICS CONNECTION DIAGRAM LED 1 LED 2 S1 S2 L N VDC 120VAC 240VAC C1 NC1 NO1 C2 NC2 NO2 2 Vibrating Fork Level Switch Data sheet

3 Principle of Operation: The utilizes a piezoelectric driven tuning fork that exhibits a large change in resonant frequency when immersed in any liquid. A smart microprocessor-based electronic unit keeps the sensor in a resonant state as it changes from dry to wet or wet to dry. The resonant frequency is continuously monitored for changes created by a wet or dry sensor and an alarm is provided via a dry contact relay. An important feature of the is that its resonant frequency is not significantly affected by coating on the fork until the space between the forks is bridged. The s ability to identify true liquid level in viscous, coating or aerated liquids is unparalleled. The continuous self-test electronics checks for fault conditions such as piezo crystal damage or excessive product build up on the sensor. Applications include high/low liquid level detection without concern for parameters such as specific gravity, dielectric constant or mounting position of the sensor. Ordering Information.a.b.c.d.e.f.g.h.i.j.k.l.m.n a b Housing A1 A1W A2 A2W Single Compartment Aluminum Housing () Single Compartment Aluminum Housing with Glass Viewing Window Dual Compartment Aluminum Housing Dual Compartment Aluminum Housing with Glass Viewing Window Process Connection P7 T 3/4 MNPT () Tri-Clamp WP Welded Flange 1.2 FL Loose Flange 1.2,3 1. Minimum Flange size 1 and Maximum 2 flanged process connections only. 2. View Data Sheet section and select Flange Designations. 3. P7 (¾ MNPT) will be utilized with loose flanges unless otherwise specified. c d e Process Connection Material S6 316SS () Flange Connection Size/Rating type 10 1 in. Tri-Clamp in. Tri-Clamp 20 2 in. Tri-Clamp Specify type and size from flange designation table (SLG ) 4 Sensor Material S6 316L SS () 4. Minimum Flange size 1 and Maximum 2 flanged process connections less than 300# rating only. Optional Dual Compartment Dimensions 1/2 (12.7mm) FNPT Conduit (156mm) Single Compartment Dimensions 4 3/8 (111mm) 3/4 (19.05mm) MNPT 10.5 (267mm) 3/4 (19.05mm) FNPT Conduit 3 3/8 (86mm) PL* 11 (279mm) 3 3/8 (86mm) PL* 3/4 (19mm) MNPT * Trip Point 3/4 from fork end Data sheet Vibrating Fork Level Switch 3

4 Ordering Information (continued) f g h i Probe Finish Power Finish VDC VAC VAC Approvals E2 N2 Probe Length No approvals ATE & IECEx Flameproof Factory Mutual s (FM) Explosion Proof Canadian s Association (CSA) Explosion Proof /8 (86 mm) /8 (111mm) Probe Length 1 1. Only with 3/4 process connection j k l m n High Temperature Extension Electrical Connection MM MMS Hermetic Seal M20 Conduit Connection Brass (CSA only) M20 Conduit Connection Stainless Remote Mounted Electronic R10 Remote Mounted Electronic; 10 ft. (3.048 m) R20 Remote Mounted Electronic, 20 ft. (6.096 m) Packing Gland Additional Ordering Codes Additional ordering codes will follow the model number with a dash (-) 4 Vibrating Fork Level Switch Data sheet

5 Service Codes Engineering Documents GD1 GD2 GD3 Drawings for Approval - NOTE: Lead time will start after receipt of customer approved drawings Drawings for Record Certified as Built Drawings - NOTE: Lead time will start after receipt of Purchase Order Positive Material Identification CHC CHD Positive Material Identification with Carbon Content Positive Material Identification without Carbon Content Origin Documents GS1 GS2 GS3 GS4 GS5 GS6 Certificate of Origin Certificate of Origin Notarized by Local Chamber of Commerce Certificate of Origin Legalized by Specific Country Chamber of Commerce - Lead Time may be Extended depending on Country Korean Foreign Trade certificate NAFTA Certificate E-IM BANK Certificate (One per Tag) Manufacturing Reports CP1 Certifications CL CU3 Hydro (10min) Certificate of Compliance Certificate of Functionality Data sheet Vibrating Fork Level Switch 5

6 Contact us ABB Inc Manchac Park Lane Baton Rouge, LA USA Phone: Service: Fax: Service Note 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. DS/-EN Rev. R_ Copyright 2017 ABB All rights reserved 3KL418000R1001 Service Sales