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Watlow Electric SERIES146 User Manual
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1 Watlow Series 146 User’s ManualSeries 146User’s ManualTemperature Regulator1241 Bundy Boulevard, P.O. Box 5580, Winona, Minnesota USA 55987-5580Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507, Internet: http://www.watlow.comRegistered CompanyWinona, Minnesota USATOTAL3 Year WarrantyCUSTOMERSATISFACTION$5.00 Made in the U.S.A.0600-0004-0010 Rev DDecember 2001Supersedes: 0600-0004-0010 Rev C(2089)Control Mode• High or low limit, factory selectable• Manual or automatic reset on power loss, factory selectable• Latching alarm with manual reset on over or under temperature• Internal and/or customer supplied external reset switchOperator Interface• LED indication of output status• Dial scale calibrated to compensate for sensornon-linearities• Integral or remote set point• Dual temperature scale (°C and °F)• Fixed set point• Manufactured to specified valueInput• Thermocouple or platinum RTD available• Thermocouple with automatic cold junction compensation• Thermocouple may be isolated or grounded• Thermocouple and RTD break protection de-energizes output• 2- or 3-wire RTD input, 100Ω @ 0°C calibrated for 0.003850Ω/Ω°C curveOutput• Electromechanical relay, 8A, Form C, SPDT: 8A @ 240VÅ resis-tive, 8A @ 28VÎ (dc) resistive, 275VA pilot duty ratedAccuracyAdjustable Set Point, integral or remote• Calibration accuracy: ±1% of span, at 25°C ± 3°C (77°F ±5°F)ambient and rated line voltage ± 1%• Set point accuracy: ±3% of dial scale• Accuracy span: 540°C (1000°F) minimumFixed Set Point• Calibration accuracy: ±6°C/±10°F of setting, at 25°C ±3°C (77°F±5°F) ambient and rated line voltage ±1%Temperature Stability• Thermocouple: Typically 9μV/°C ambient (5μV/°F ambient) inputreferenced• RTD: Typically 0.2°C/°C ambient (0.2°F/°F ambient)Voltage Stability• ±0.01% of span (min. span of 540°C or 1000°F) per % of ratedline voltageAgency Approvals• CE: EN61010 - SafetyEN61326 - Industrial Immunity, Class B EmissionsInstallation Category 2, Pollution Degree 2• 873, File #E43684• to C22.2 No. 24, File #E43684• Approved for use in commercial cooking applications• FM Class 3545, File J.I. 3007307Terminals• Captive screw, cage clamp connection, 4 mm (0.155 in.) max.width screwdriver blade, 30 to 14-gauge wireMounting• DIN rail, DIN EN50022, 35 mm x 7.5 mm• Sub-panel flush mountingPower• 24V~, +10%/-15%, 50/60 Hz• 120V~, +10%/-15%, 50/60 Hz• 230V~ to 240~, +10%/-15%, 50/60 Hz• 10VA maximum powerOperating Environment• 0 to 55°C (32 to 131°F)• 0 to 90% RH, non-condensing• Storage temperature: -20 to 85°C (-4 to 185°F)Dimensions• Width: 60 mm (2.28 in)• Height: 115 mm (4.45 in)• Depth: 100 mm (3.89 in)Weight• 0.3kg (0.7 lb.)UL® is a registered trademark of Underwriter’s Laboratories, Inc.Note: Specifications subject to change without notice.SpecificationsThe Watlow Series 146 is a DIN rail mount, tempera-ture regulating controller with a thermocouple or RTDsensor input. The DIN rail mounting offers quick and easyinstallation with the use of simple hand tools. The con-troller may also be flush mounted.The Series 146 is designed to meet the needs of awide range of safety applications. Factory selectableoptions include high or low control mode with eithermanual or automatic reset on power loss.The Series 146 has an LED for output statusindication and can be ordered with an integral or remoteadjustable set point, or a fixed set point.General Description |
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