ONOSOKKIDiesel engine tachometer sensorGE-1400GE-1400 is a portable digital tachometer designed and manufactured specifically for measuring the speed of 4-stroke diesel engines. Simply clip the pulsation sensor CP-044 (optional item to be purchased separately) on the fuel injection pipe to read the engine's r/min speed value on the display. Analog output (also available as monitoring output) and pulse output are standard configurations. The analog output signal can be used to connect a pen recorder to record measurement data (monitoring output can be used to confirm the sensor output waveform and working conditions), and the pulse signal can be used to connect an FFT analyzer for tracking analysis. GE-1400 Portable Diesel Engine Tachometer Measurement Object 4-stroke diesel engine Sensing method Detects the pulsating signal generated in the fuel pipe during fuel injection. Adapter sensor CP-044 (optional) Calculation method Periodic calculation method Measurement interval 1 second + 1 cycle Display 5-digit LCD display with background lighting (character height: 10.2mm) Display refresh time interval 1 ± 0.2s Display unit r/min, r/s Measuring range 400 to 8000 r/min (When using r/s unit, the index of r/min in the left example can be divided by 60 to obtain) Measurement accuracy Display value (*) × (±0.02%) ± 1 digit (*The displayed value is the count value without a decimal point.) Memory storage function can store up to 20 data Overflow function When the measured value exceeds the measuring range, an overflow (ERROR sign) is displayed Speed upper limit warning function When the speed measurement value exceeds the preset upper limit, an upper limit warning (↑ sign) is displayed Trigger level adjustment function A knob is installed on the right side of the body for adjustment Monitor output is used to monitor the signal from the sensor (switchable with analog output) Pulse output Outputs a pulse for each signal detected Output voltage: Hi level greater than +4.5V; Lo level less than +0.5V Output level logic theory: positive logic Load impedance: greater than 100 kΩ Operating temperature range 0 to +40℃ Storage temperature range -10℃ to +50℃ Power supply 7-size dry batteries (1.5V) × 4 pieces, or use the dedicated AC power adapter PB-7080 (optional) Battery life is more than 32 hours (backlight OFF), 8 hours (backlight ON) Low battery warning display When the battery voltage drops below approximately 4.4 V, the low battery warning (LOW sign) will appear. Dimensions 186.5 (W) × 47.5 (H) × 66 (D) mm Weight Approx. 280 g (including battery) Accessories 4 AA batteries, AX-501 output signal cable, carrying case For prices, please contact our distributors in each country or region. Optional accessories PB-7090 AC power adapter AX-501 Output signal cable with BNC connector (2 m for both analog and pulse output) CP-044 Fuel injection pulsation sensor CP-044 Sensor measurement object Diesel engine Sensing method Piezoelectric signal sensor detects pulsation signal during fuel injection Measurable fuel pipe diameter φ4 to 8 mm Sensor compression resistance 1960 bar Measuring range 400 to 6000 r/min Output signal Pulse signal Signal cable Special heat-resistant cable 4.9 m (sensor direct tap) — (R03PB6M connector) Operating temperature range 0 to +80°C Dimensions φ 32 × 72 mm