SE-2500, SE2500, Gasoline Engine Tachometer, Handheld, non-contact

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Gasoline Engine Tachometer SE-2500

Gasoline Engine Tachometer

SE-2500

SE-2500 is a handheld tachometer by non-contact method, which the detection, measurement and displaying portion are combined with built-in batteries and is designed to measure the revolution of the gasoline engine exclusively.
By closing the detector (head position) to the ignition coil, the engine revolution can be measured at the unit of 1 r/min or 0.01 r/s. Further, remote measurement is possible by using the IP-2800 detector which is provided as standard accessory. The max. 20 measurement data can be stored internally by memory function which is convenient for later checking.

Both analogue (which can be switched over to monitor also) and pulse output function are provided as standard. Analogue output signal can be used for the recording the signal from data recorder and so on. Monitoring output signal can be used for checking the sensors detection waveform or as the input signal by FFT analyzer. Pulse output signal can be used as external clock signal for tracking analysis by FFT analyzer.

製品写真（IP-2800イグニッションパルス検出器）
IP-2800 External Sensor (Accessory)

Featute

Built-in memory function 20 data (MAX) can be saved to memory.

Three outputsanalog, monitor and pulseprovided as standard

Use the analog output function to record the number of rotations, the monitor output function to check the sensors detection waveform, and the pulse output function to output rotation synchronization signals.

Large LCD with backlight

(Character height: 10.2 mm)

Capable of performing measurement at a distance of 1 m when the external sensor (IP-2800) is used.*

Can be mounted on a tripod

The tachometer can be fixed to a tripod for continuous measurement.

Measurement can be performed in 1 r/min or 0.01 r/s units.

*Measurement is impossible depending on the type of the engine.

Measurement method

Specifications Summary

Applicable engines

Gasoline engines
2-cycle (1, 2, 3, 4 cylinders), 4-cycle (1, 2, 3, 4, 5, 6, 7, 8, 10, 12 cylinders)

Detection method

Electromagnetic induction

Detection distance

10 to 200 mm

Object of measurement

Ignition coil

Calculation method

Cycle calculation method

Measurement time

Within 1 s + the time required for one cycle

Display

5-digit LCD, with backlight (character height: 10.2 mm)

Display update time

1 ±0.2 s

Measurement units

r/min, r/s

Measurement ranges

2-cycle	4-cycle	Number of rotations (r/min)
-	1 cylinder	120 to 20000r/min
1cylinder	2 cylinders	120 to 20000r/min
-	3 cylinders	120 to 20000r/min
2 cylinders	4 cylinders	120 to 20000r/min
-	5 cylinders	120 to 20000r/min
3 cylinders	6 cylinders	120 to 15000r/min
4 cylinders	8 cylinders	120 to 12000r/min
-	10 cylinders	120 to 10000r/min
-	12 cylinders	120 to 8000r/min

(r/s is the numerical value obtained when the r/min measurement value is divided by 60)

Measurement accuracy

Displayed value* x (±0.02%) ±1 count
* The displayed value is the count value excluding figures after the decimal point.

Memory function

20 data (MAX)

Over-range function

The over-range alarm (ERROR mark) is displayed when the measured value exceeds the display range.

Rotation upper limit alarm function

The upper limit alarm ( mark) is displayed when the number of rotations exceeds the preset upper limit value.

Sensitivity adjustment function

A rotary dial at the right-hand side of the device is used to adjust the sensitivity.

Analog output

Output with respect to the displayed rotation values

Output voltage: 0 to 1 V/0 to FS (FS is freely selectable)
Conversion method: 10-bit D/A conversion
Linearity: ±1%/FS
Output update time: Within 50 ms + the time required for 1 cycle
Temperature stability: ±0.05%/FS/°C (span & zero)
Setting error: ±0.5%/FS
Load resistance: At least 100 kΩ

Monitor output

Analog output for monitoring purposes after waveform reshaping of the sensor signal

Load resistance: At least 100 kΩ

Pulse output

1 pulse output per signal detection

Output voltage: Hi level: At least +4.5, Lo level: Up to +0.5 V
Output logic: Positive logic
Load resistance: At least 100 kΩ

Power source

Four AAA alkaline batteries or exclusive AC adapter (PB-7090, Option)

Battery life

At least 32 hours (when the backlight is OFF)
At least 8 hours (when the backlight is ON)

Low battery alarm indicator

A low battery alarm (LOW mark) is displayed when the battery voltage falls below 4.4 V.

Operating temperature range

0 to 40°C

Storage temperature range

-10 to 50°C

Outer dimensions

198.5 (W) x 47.5 (H) x 66 (D) mm

Weight

Approx. 300 g (including batteries)

Accessories

Ignition detector (IP-2800) , AAA alkaline batteries × 4, Carrying case

Options

LA-0203A Tripod	HT-0522/0521A Magnetic stand/Stand jig	PB-7090 AC adapter

Revised:2010/12/14

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