PNF Point Level Switch - Thermo Scientific - Process Systems - #9

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Performance Specifications Precision ±1% Span Stability Drift less than 1.0% absolute radiation change per 6 months Gamma Ray Source Source Type Cs-137 or Co-60 both stainless steel doubly encapsulated Size 10-10,000 mCi Cs-137 or 1,000-2,000 mCi Co-60 (Source size is dependent upon application) Source Housing Carbon steel, lead filled, polyurethane painted (stainless steel also available) Two position shutter, locks in “closed” position 30°, 45° and 60° beam angle source housings available (Beam angle is dependent on application) Ion Chamber Detector(s Multi-Detector Up to four (4) detectors may be used Supply Voltage/Consumption Power supplied from M transmitter Operating Temperature Range -25°C to 60°C (-13°F to +140°F) Humidity 10% to 95% RH non-condensing Minimum Operational Radiation Field 0.2 mR/hr Enclosure ANSI 300 Series stainless steel Connections Two 3/4-in NPT conduit entries Output Single 3-wire instrument cable for digital communication to the M transmitter In multi-detector installations, each detector is wired in parallel Interconnecting Cable Maximum length 763 m (2500 ft) between detector and transmitter Standard three conductors, shielded (Belden Model 9365) Factory Mutual (FM) Approved for Explosion Proof Class I, Division 1, Groups B, C, D Dust-Ignition Proof Class II, Division 1, Groups E, F, G Non-Incendive Class I, Division 2, Groups A, B, C, D NEMA 4X Canadian Standards Association (CSA) Explosion Proof Class I, Division I, Groups B, C, D; Class I, Division 2, Groups A, B, C, D Dust-Ignition Proof Class II, Division I, Groups E, F, G; Class III Type 4 enclosure M Transmitter (Model 1400A) System Architecture Multiprocessor based electronics means uninterrupted output during data entry and system interrogation Surface mount technology provides high degree of reliability All user data doubly stored in non- Approvals FMRC approved for use in Class 1, Div.2, Groups A,B,C,D; Class II Div.2, Groups F,G; Class III, Div. 2; NEMA 4X CSA approved as above plus Class II, Div. 2, Group E; ENCL. TYPE 4X Display Four-line backlit display; easy-to-use setup menus; displays up to eight readouts simultaneously Current Outputs 4 to 20 mA isolated self-powered or loop-powered into 800 ohms, field scalable One (1) current output standard Up to three current outputs available each representing independent span channels Contact Closure Outputs Up to 4 – 115 VAC/28 VDC SPDT @ 10 amps (230 VAC SPDT @ 8 amps) Inputs Dry contact closure Operating Temperature -40°C to +60°C (-40°F to +140°F) Specifications Model 4790 Nuclear Level System