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Murphy ATS, ATA, ATHA, ATHS Tachometers and Tach/Hourmeters
速度表，速度表/小时表
Murphy AT 和 ATH 系列转速表采用先进的电子电路来显示发动机转速。均配有配合 3-3/8 英寸（ 86 毫米）标准仪表盘安装孔的安装支架。全方位 270 °扫描的指针使数据显示范围更广，读取数据更轻松。表盘背光适合夜间使用。 ATH 系列转速表还配有小时计来记录发动机的运行时间。
不同型号适用于发电机、转速传感器或者点火装置的信号输入。发电机信号输入可来自 4,6,8,12,14 或者 16 极发电机所产生的脉冲 (3-40PPR) 。输入信号亦可来自摩菲公司生产的 MP 系列转速传感器，其适用于带 50 至 304 齿的飞轮。点火装置输入适用于 2-10 缸的火花点火式发动机。所有型号都适用于正极接地、负极接地或者不接地、隔离的电气系统，同时可防止极性反接。
The tachometer is a rugged, transistorized instrument with solid-state circuitry for indication of engine revolutions per minute (RPM). It is equipped with a bracket for mounting into a standard 3-3/8 in. (86 mm) dash mounting hole.
■ 3000 and 4000 RPM –0 to 100,000 hours
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Sensing from Magnetic Sensor, Battery Charging Alternator or Ignition Signal
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High Visibility Analog Readout
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Air Core Movement
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Easy Calibration
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Through Dial Lighting
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Powered by 12 VDC Battery Available Converter for 24 to 12 VDC
The tachometer’s full 270° sweep of the pointer gives an accurate indication on a large easy–to–read scale. The dial can be illuminated for night reading. The models equipped with tachometer and hourmeter also record the elapsed running time of an engine.
Series Models
ATS Series Magnetic Sensor Signal Tach
70 - 225 pulses* 12 VDC, 2733 Hz to 13.62 kHz @ 3000 RPM
ATHS Series Magnetic Sensor Signal Tachometer/Hourmeter
70-225 pulses* 12 VDC, 2733 Hz to 13.62 kHz @ 3000 RPM
ATA Series Alternator Signal Tachometer
3-27 pulses* 12 VDC, 137 to 1330 Hz @ 3000 RPM
ATHA Series Alternator Signal Tachometer/Hourmeter
3-27 pulses* 12 VDC, 137 to 1330 Hz @ 3000 RPM or 193 to 1815 Hz @ 4000 RPM
ATHI Series Ignition Signal Tachometer/Hourmeter
4, 6 or 8 cylinder engines @ 4000 RPM
Bezel Styles Applications
Models
Magnetic Sensor Tachometer 3000 RPM; 70 - 225 pulses 12 VDC
Model # Designation
ATS-30-12 Bright Stainless Steel Bezel
ATS-30-12-A Black Stainless Steel Bezel
ATS-30-12-B SAE Bright Stainless Steel Bezel
ATS-30-12-C SAE Black Stainless Steel Bezel
Magnetic Sensor Tach/Hourmeter 3000 RPM; 70 - 225 pulses 12 VDC
ATHS-30-12 Bright Stainless Steel Bezel
ATHS-30-12-A Black Stainless Steel Bezel
ATHS-30-12-B SAE Bright Stainless Steel Bezel
ATHS-30-12-C SAE Black Stainless Steel Bezel
Alternator Signal Tachometer 3000 RPM; 3 - 27 pulses 12 VDC
ATA-30-12 Bright Stainless Steel Bezel
ATA-30-12-A Black Stainless Steel Bezel
ATA-30-12-B SAE Bright Stainless Steel Bezel
ATA-30-12-C SAE Black Stainless Steel Bezel
Alternator Signal Tach/Hourmeter 4000 RPM; 3 - 27 pulses 12 VDC
ATHA-30-12 Bright Stainless Steel Bezel
ATHA-30-12-A Black Stainless Steel Bezel
ATHA-30-12-B SAE Bright Stainless Steel Bezel
ATHA-30-12-C SAE Black Stainless Steel Bezel
ATHA-40-12-A Black Stainless Steel Bezel
Ignition Signal Tach/Hourmeter 4000 RPM; 4, 6 or 8 cylinder 12 VDC
ATHI-40-12-A Black Stainless Steel Bezel
Optional Items and Replacement Bulbs
ATVC12/24 24 VDC to 12 VDC Converter
00-00-4617 12 VDC Light Bulb
00-00-4618 24 VDC Light Bulb
Murphy转速表ATHS-30-A
Murphy ATS, ATA, ATHA, ATHS Tachometers and Tach/Hourmeters
Murphy Tachometer and Tach/Hourmeter Installation Instructions Series: ATS, ATHS, ATA, ATHA, ATHI
How to Order
Order the Tachometer or Tachometer/Hourmeter by model number.
Magnetic Sensor Tachometer 3000 RPM; 70 - 225 pulses 12 VDC
Model # Designation
ATS-30-12 Bright Stainless Steel Bezel
ATS-30-12-A Black Stainless Steel Bezel
ATS-30-12-B SAE Bright Stainless Steel Bezel
ATS-30-12-C SAE Black Stainless Steel Bezel
Magnetic Sensor Tach/Hourmeter 3000 RPM; 70 - 225 pulses 12 VDC
ATHS-30-12 Bright Stainless Steel Bezel
ATHS-30-12-A Black Stainless Steel Bezel
ATHS-30-12-B SAE Bright Stainless Steel Bezel
ATHS-30-12-C SAE Black Stainless Steel Bezel
Alternator Signal Tachometer 3000 RPM; 3 - 27 pulses 12 VDC
ATA-30-12 Bright Stainless Steel Bezel
ATA-30-12-A Black Stainless Steel Bezel
ATA-30-12-B SAE Bright Stainless Steel Bezel
ATA-30-12-C SAE Black Stainless Steel Bezel
Alternator Signal Tach/Hourmeter 4000 RPM; 3 - 27 pulses 12 VDC
ATHA-40-12 Bright Stainless Steel Bezel
ATHA-40-12-A Black Stainless Steel Bezel
ATHA-40-12-B SAE Bright Stainless Steel Bezel
ATHA-40-12-C SAE Black Stainless Steel Bezel
ATHA-40-12-A Black Stainless Steel Bezel
Ignition Signal Tach/Hourmeter 4000 RPM; 4, 6 or 8 cylinder 12 VDC
ATHI-40-12-A Black Stainless Steel Bezel
Optional Power Input Convertor
ATVC12/24 24 VDC to 12 VDC Converter
Models
Magnetic Sensor Tachometer 3000 RPM; 70 - 225 pulses 12 VDC
Model # Designation
ATS-30-12 Bright Stainless Steel Bezel
ATS-30-12-A Black Stainless Steel Bezel
ATS-30-12-B SAE Bright Stainless Steel Bezel
ATS-30-12-C SAE Black Stainless Steel Bezel
Magnetic Sensor Tach/Hourmeter 3000 RPM; 70 - 225 pulses 12 VDC
ATHS-30-12 Bright Stainless Steel Bezel
ATHS-30-12-A Black Stainless Steel Bezel
ATHS-30-12-B SAE Bright Stainless Steel Bezel
ATHS-30-12-C SAE Black Stainless Steel Bezel
Alternator Signal Tachometer 3000 RPM; 3 - 27 pulses 12 VDC
ATA-30-12 Bright Stainless Steel Bezel
ATA-30-12-A Black Stainless Steel Bezel
ATA-30-12-B SAE Bright Stainless Steel Bezel
ATA-30-12-C SAE Black Stainless Steel Bezel
Alternator Signal Tach/Hourmeter 4000 RPM; 3 - 27 pulses 12 VDC
ATHA-30-12 Bright Stainless Steel Bezel
ATHA-30-12-A Black Stainless Steel Bezel
ATHA-30-12-B SAE Bright Stainless Steel Bezel
ATHA-30-12-C SAE Black Stainless Steel Bezel
ATHA-40-12-A Black Stainless Steel Bezel
Ignition Signal Tach/Hourmeter 4000 RPM; 4, 6 or 8 cylinder 12 VDC
ATHI-40-12-A Black Stainless Steel Bezel
Optional Items and Replacement Bulbs
ATVC12/24 24 VDC to 12 VDC Converter
00-00-4617 12 VDC Light Bulb
00-00-4618 24 VDC Light Bulb
Models Magnetic Sensor Tachometer 3000 RPM; 70 - 225 pulses 12 VDC Model # Designation ATS-30-12 Bright Stainless Steel Bezel ATS-30-12-A Black Stainless Steel Bezel ATS-30-12-B SAE Bright Stainless Steel Bezel ATS-30-12-C SAE Black Stainless Steel Bezel Magnetic Sensor Tach/Hourmeter 3000 RPM; 70 - 225 pulses 12 VDC ATHS-30-12 Bright Stainless Steel Bezel ATHS-30-12-A Black Stainless Steel Bezel ATHS-30-12-B SAE Bright Stainless Steel Bezel ATHS-30-12-C SAE Black Stainless Steel Bezel Alternator Signal Tachometer 3000 RPM; 3 - 27 pulses 12 VDC ATA-30-12 Bright Stainless Steel Bezel ATA-30-12-A Black Stainless Steel Bezel ATA-30-12-B SAE Bright Stainless Steel Bezel ATA-30-12-C SAE Black Stainless Steel Bezel Alternator Signal Tach/Hourmeter 4000 RPM; 3 - 27 pulses 12 VDC ATHA-30-12 Bright Stainless Steel Bezel ATHA-30-12-A Black Stainless Steel Bezel ATHA-30-12-B SAE Bright Stainless Steel Bezel ATHA-30-12-C SAE Black Stainless Steel Bezel ATHA-40-12-A Black Stainless Steel Bezel Ignition Signal Tach/Hourmeter 4000 RPM; 4, 6 or 8 cylinder 12 VDC ATHI-40-12-A Black Stainless Steel Bezel Optional Items and Replacement Bulbs ATVC12/24 24 VDC to 12 VDC Converter 00-00-4617 12 VDC Light Bulb 00-00-4618 24 VDC Light Bulb
New Version Part # New Version Model # Old Version Model # Old Version Part # 20700134 ATA‐40 ATA‐30‐12 20700175 ATA‐30‐24 20700198 20700135 ATA‐40‐A ATA‐30‐12‐A 20700191 ATA‐30‐24‐A 20700199 2070136 ATA‐40‐B ATA‐30‐12‐B 20700190 ATA‐30‐24‐B 20700200 207000137 ATHA‐40 ATHA‐30‐12 20700184 ATHA‐30‐24 20700206 20700141 ATHA‐40‐A ATHA‐30‐12‐A 20700183 ATHA‐30‐24‐A 20700207 ATHA‐40‐12‐A 20700221 20700139 ATHA‐40‐B ATHA‐30‐12‐B 20700182 20700140 ATHA‐40‐C ATHA‐30‐12‐C 20700181 20700142 ATHS‐40 ATHS‐30‐12 20700180 ATHS‐30‐24 20700210 20700143 ATHS‐40‐A ATHS‐30‐12‐A 20700179 ATHS‐30‐24‐A 20700211 20700225 ATHS‐40‐B ATHS‐30‐12‐B 20700178 ATHS‐30‐24‐B 20700212 20700226 ATHS‐40‐C ATHS‐30‐12‐C 20700177 ATHS‐30‐24‐C 20700213 20700227 ATS‐40 ATS‐30‐12 20700188 ATS‐30‐24 20700202 20700228 ATS‐40‐A ATS‐30‐12‐A 20700187 ATS‐30‐24‐A 20700203 20700229 ATS‐40‐B ATS‐30‐12‐B 20700186 ATS‐30‐24‐B 20700204 20700230 ATS‐40‐C ATS‐30‐12‐C 20700185
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