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Your full-service provider of Power Products. Specializing in Electric Generator, Industrial Engines (gas or diesel), Emission Control Products, and Compressed Air Systems, and many hard to find replacement parts. MURPHY TACHOMETER3000 RPMPN: 20-70-0246AT-30-A (20700246) - 12/24 VDC Tachometer; 3000 rpm; 10-32 VDC; LED Backlight, Black Stainless-Steel Bezel; New & Easy One Button Calibration; all signal input versions in one model number
Replaces ATA-40-A and ATS-40-A.
MODEL# AT-30-AFeatures
•Improved quality
•New, easy one-button calibration procedure
•12 & 24 VDC versions are included in one model number
•Every model will accept all signal sources: alternator, magnetic pickup or ignition
•LED backlight, no bulbs to change
•Easy ring clamp for installation
Since engine speed is determined one of three ways, these instruments are designed to function with Alternator, Magnetic Pickup or Ignition signals from:
1. Magnetically by the pulses obtained from the ring gear of an engine flywheel by means of an electromagnetic sensor (magnetic pickup). The instrument is designed to function with flywheels having anywhere from 50 to 300 teeth;
2. Electrically by the engine-driven alternator, producing pulses with 4, 8, 12, 14 or 16 poles on the rotor (3 - 52 PPR) when it charges the battery. In this instance, the alternator must have a terminal for the tachometer.
3. From the coil or a tachometer output from the ignition system of 2 - 10 cylinder, 4 cycle spark-ignited engines.
The tachometer is for negative ground or isolated electrical systems. If the instrument is connected to reverse polarity, it will not operate until proper connections are made. It is powered by a 12- or 24-volt battery (operating range: 10-32 VDC).
Not intended for use with Capacitive Discharge (CD) ignitions or magnetos, only for inductive, automotive-type ignitions.
The tachometers are powered by a 12- or 24-volt battery and are reverse polarity protected. These units are for negative ground, positive ground or isolated electrical systems. They are specially designed for use on truck, marine, industrial or stationary engines.
Specifications
Power Input: 10-32 VDC (100mA max at 32 VDC, does not include backlight)
Backlight: Red LED
Backlight Current: 75 mA Max. (@32 VDC)
Accuracy:
Tachometer: +2% full scale
Hourmeter: +/- 0.02%
Operating Temperature Range: -40øF to 185øF (-40øC to 85øC)
Dial (Face Plate): 240-degree sweep; white text and graphics on black background
Bezel: black bezel
Scale: 0-3000 RPM
Case Material: Nylon, 12% glass filled, black
Lens: Tempered glass
Clamp: Screw-on ring, PBT, white
Max Panel Thickness: .50?
Fits a standard 3-3/8 in. (86 mm) dash mounting hole
Hourmeter Range: 99999.9 hours in 0.1 increments.
Begins counting when receiving an engine running input signal of at least 100 RPM.
IP Rating: IP66 Front, IP32 Back (vented case)
Input Voltage: 12VDC or 24VDC (10 to 32 VDC). Not for use with Capacitive Discharge (CD) ignitions or magnetos.
Frequency Input Range: 2.5 Hz - 25 KHz
Minimum Signal Amplitude: 1.5 Vrms
Maximum Signal Amplitude: 140 Vrms
Mag Pickup: 50 to 300 flywheel teeth
Alternator: 3 to 52 pulses per rev
Ignition: 2 to 10 cylinders (4 cycle)
Operating Current: 100 mA Max. (@32 VDC) (does not include backlight)
Connections: 10-32 UNF studs (Battery +, Ground, Signal), 1/4? Spade (Backlight)
Electromagnetic Compatibility: 2004/108/EC
-NEW IN PACKAGE-
PLEASE VERIFY THE PART BEFORE PURCHASING. IF YOU NEED ASSISTANCE, PLEASE CONTACT US WITH YOUR MODEL AND SERIAL NUMBER AND WE WILL BE HAPPY TO ASSIST YOU.
** FREE SAME DAY SHIPPING IN THE CONTINENTAL USA ON ORDER SRECEIVED BEFORE 3:00PM EST M-F. ALL ORDERS RECEIVED AFTER WILL SHIP THE FOLLOWING BUSINESS DAY. (SEE DETAILS).
About UsAbout UsToday, we are committed to continue our evolution as the premier provider of power generation systems,compressed air systems, andindustrial engines & accessories,while maintaining our core philosophy of superior customer service. We represent many of the leading manufacturers of generators, air compressors, and industrial engines. In addition we also carrya large inventory of new equipment, rental equipment, and parts we are committed to support our customers every need. We welcome the opportunity to be of service to ACCEPT PAYPAL, FROM TRUSTED AND VERIFIED ORDERS RECEIVED BEFORE 3:00 EST, SHIP THE SAME DAY. ORDERS RECEIVED AFTER, WILL SHIP THE FOLLOWING BUSINESS DAY. WE ARE OPEN M-F, 8-4 EST.
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ALL ORDERS MUST BE PAID FOR WITHIN 24 HOURS OF SUBMITTING BUY IT NOW. IF YOU HAVE ANY QUESTIONS, PLEASE FEEL FREE TO CONTACT US VIA ASK THAT YOU VERIFY THE PART OR UNIT BEFORE PURCHASING. WE DO NOT ACCEPT RETURNS ON ITEMS THAT HAVE BEEN INSTALLED OR USED. ANY UNIT THAT HAS HAS FLUIDS(OIL OR PETROL) ARE UNABLE TO BE RETURNED. YOU MUST CONTACT YOUR LOCAL HONDA DEALER FOR WARRANTY WORK. PLEASE NOTE THE RETURN POLICY FOR EACH ITEM, AS SOME MAY DIFFER, FROM THIS AND ARE UNABLE TO BE RETURNED.
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