Murphy Digital Tach Hourmeter With Overspeed Trip Point Shd30 Users Manual SHD3 97050B Art NEW
SHD30 to the manual ca4f35b7-ae95-487e-902d-58c88692009d
2015-02-05
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Digital Tachometer and Hourmeter with Adjustable Overspeed Trip Point SHD3-97050B Revised 07-04 Replaces SHD-95064B Catalog Section 20 (00-02-0287) SHD30 and SHD30-45 Models ■ Normally Open and Normally Closed Overspeed Alarm or Shutdown Switch (Standard) ■ RPM Data and Power Supplied by Magnetic Pickup or Capacitor Discharge (CD) Ignition ■ Accurate to ±0.5% of Display Reading ■ Hours Can Be Preset and Reset to Zero ■ Approved for Class I, Division 2, Groups C & D Hazardous Areas When installed per Murphy Drawing 20-08-0258 C Description The SHD30 and SHD30-45 are microprocessorbased tachometers with hourmeter and an overspeed trip point. The trip point can be connected as either a form “c ” relay output or as a normally open SCR output for alarm or shutdown on overspeed. The SHD30 features a panel-mounting design, plastic enclosure that is 5-1/16 (129 mm) long and 4-1/4 in. (108 mm) high. The SHD30-45 has the same enclosure, but it also has a backplate with studs to mount like a SHD45, OPLFC. The SHD30 models power and RPM data are supplied by either a magnetic pickup or a capacitor discharge (CD) ignition. The hourmeter is adjustable to a preset time and resettable to zero. Should power be lost, on-board batteries maintain the run hours display and allow for resetting the overspeed relay output. Basic Operation When a tach signal is present the SHD30 models display rpm. When a tach signal is not present, the display is blank unless the Read Hours membrane key, on the faceplate is pressed and held. The five-digit, liquid crystal display is updated every second. The run hours, overspeed set point and current pulses per engine revolution can be displayed by manipulating the membrane switches. Run hours can be displayed even after power is lost. The run hours display can be configured to alternate with the RPM display. US Applications • Gas Compressors • Oil Field Equipment • Industrial Engines • Generators Easy-to-Calibrate The SHD30 models calibration is done by entering the number of pulses per engine revolution using the Pulses per Revolution and Overspeed Setpoint membrane keys, on the faceplate. The number of pulses is determined by the number of cylinders, cycles and ignition features. It is also determined by the number of ring gear teeth of the engine’s flywheel on a magnetic pickup system. Presetting and resetting running hours is done from the back and front of the SHD30 models. Specifications Power input: CD ignition: 90 to 350 VDC. 150 µA typical @ 90 VDC; 300 µA @ 350 VDC. Magnetic Pickup: 5 to 120 Vrms. 325 µA typical @ 5 Vrms, 100 Hz; 450 µA typical @ 5 Vrms, 1 kHz; 1 mA typical @ 5 Vrms, 5 kHz; 2 mA typical @ 5 Vrms, 10 kHz; 15 mW max. @ 5 Vrms, 10 kHz; 2.8 W max. @ 120 Vrms, 10 kHz. Backup Batteries: 2 replaceable, long life Lithium batteries, Panasonic CR2032 or equivalent, 3 V, 220 mAh power. Shelf life expectancy 10 years. Operating Temperature: -4° to 158°F (-20° to 70°C). Storage Temperature: -40° to 300°F (-40° to 150°C). Case Material: Plastic. Ignition Frequency Range: 3 to 666 Hz. Magnetic Pickup Frequency Range: 1 to 10 kHz. Overspeed Output: Connected to S.C.R. (Silicon Controlled Rectifier) terminals: 0.5 A, 350 VDC continuous. Connected to Form “C” Relay terminals: Relay Contact, 0.5 A, 30 VDC, 125 VAC resistive. Tachometer Accuracy: ±0.5% of the display reading or ±1 RPM whichever is greater. Hourmeter Range: 0 to 65535 hrs. Hourmeter Accuracy: ±15 minutes per year. Laboratory Approvals: CSA (Canadian Standards Association) approved for Class I, Division 2, Groups C & D hazardous areas. Shipping Weight : 1 lb ( 0.5 kg). Shipping Dimensions: 9-1/4 x 8-1/4 x 5-1/4 in. (235 x 210 x 133 mm). SHD-30-45 Model Dimensions SHD-30 Model Dimensions Front View Side View 5-1/16 in. (129 mm) 5-13/16 in. (148 mm ) 1-9/32 in. (33 mm) 5-1/16 in. (129 mm) 4-1/4 in. (108 mm) 4-1/4 in. (108 mm) 5-13/16 in. (148 mm ) Mounting Hole 2 in. (51 mm) panel Ø6-1/2 2 in. (51 mm) 3-1/8 in. (79 mm) diameter in. Front View 1-5/16 in. (33 mm ) 2 in. (51 mm) TB2 TB1 1 MPU + 5-120Vrms 2 MPU – 3 NEG 90-300vdc 4 POS 90-300vdc N.O. C. N.C. Ø5-13/64 1 NO 2C 3 NC 4 +Overspeed SCR 5 –Overspeed SCR 6 Reset Hourmeter 7 in. Rear View MUST BE INSTALLED PER MURPHY DWG. 20-08-0258 INSTALLE CONFORMEMENT MURPHY 20-08-0258 MPU PU 5Va Vac-120Vac TYP YP: 325uA A @ 5Vac,100Hz; 450uA@ A@ 5Va Vac 1kHz; 1mA A @ 5Va Vac,5kHz; 2mA A @ 5Vac,10kHz; X @ 5Vac,10kHz; 2.8W MAX AX @ 120Va Vac, 10kHz 15mw MAX Typical Wiring Diagram KEPS Nuts (3 Supplied) OUTPUT REL ELAY AY = 0.5A, 30Vd Vdc, 125Vd Vdc res SCR = 0.5A, A, 300Vd Vdc CD IGN 90-300Vd Vdc TYP: YP:150uA A @ 90Vd Vdc; 600uA @ 300Vd Vdc 1-1/2 in. (38 mm) 3/16 in (5 mm) diameter, 4 places 1/4 in. (6 mm ) dia. holes (3 places) 1/2 in. (12 mm ) Side View + – TB2 1 2 3 4 5 6 7 TB1 1 2 3 4 + – How to Order 5-120Vrms Shield ground Specify model number: + CD Ignition IGN 90-350VDC SHD30 = Tach/hourmeter w/overspeed SHD30-45 = Tach/hourmeter w/overspeed to mount like SHD45 or OPLFC 00-00-9389 = Panasonic CR2032 or equivalent — Magnetic Pickup 5 - 120Vrms OR backup battery (2 required) WARNING: In hazardous areas the overspeed relay contact is certified for use ONLY with Murphy non-incendive or intrinsically safe products. In non-hazardous areas overspeed relay contact may be used to switch electromechanical Tattletale® or Magnetic Switches that do not exceed the relay contact rating: 1 A, 30 VDC; 0.3 A, 110 VDC; 0.5 A, 125 VAC. However, the preferred output to switch electromechanical Tattletale® or Magnetic Switches is the N.O. SCR. Warranty A limited warranty on materials and workmanship is given with this FW Murphy product. A copy of the warranty may be viewed or printed by going to www.fwmurphy.com/support/warranty.htm Refer to SHD3-97051N for more details. GI D MURPHY SWITCH OF CALIFORNIA 41343 12th Street West Palmdale, California 93551-1442; USA +1 661 272 4700 fax +1 661 947 7570 e-mail sales@murphyswitch.com www.murphyswitch.com MACQUARRIE CORPORATION 1620 Hume Highway Campbellfield, Vic 3061; Australia +61 3 9358 5555 fax +61 3 9358 5558 e-mail murphy@macquarrie.com.au E MURPHY DE MEXICO, S.A. DE C.V. Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje San Luis Potosí, S.L.P.; México 78384 +52 444 8206264 fax +52 444 8206336 Villahermosa Office +52 993 3162117 e-mail ventas@murphymex.com.mx www.murphymex.com.mx FRANK W. MURPHY, LTD. Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K. +44 1722 410055 fax +44 1722 410088 e-mail sales@fwmurphy.co.uk www.fwmurphy.co.uk RE FW Murphy P.O. Box 470248 Tulsa, Oklahoma 74147 USA +1 918 317 4100 fax +1 918 317 4266 e-mail sales@fwmurphy.com www.fwmurphy.com CONTROL SYSTEMS & SERVICES DIVISION P.O. Box 1819; Rosenberg, Texas 77471; USA +1 281 633 4500 fax +1 281 633 4588 e-mail sales@fwmurphy.com STER USA–ISO 9001:2000 FM 28221 UK–ISO 9001:2000 FM 29422 In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time. SHD3-97050B page 2 of 2 Printed in U.S.A.
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