ONO SOKKI - (Discontinued) HT-6100 Handheld Digital Tachometer

HT-6100 is a handheld tachometer , which the measurement and displaying portion are combined with built-in batteries and is designed to measure the revolution of the gasoline engine and generating rotating objects. Combined with optional detectors such as model IP-292, IP-296, IP-3000A, IP-3100, OM-1200 and TTL signal depending on the measurement objects or purpose, the revolution measurement is possible. The max. 20 measurement data can be stored internally by memory function which is convenient for later checking.

Several measurement items such as revolution (r/min, r/s), accumulated revolution (Counter), period (ms) are available by HT-6100 and 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.

Measurement is impossible depending on the model of the engine. Please consult us the nearest distributor when you try the measurement of the engine, which has no record of the measurement in the past

Applicable engines

■ Gasoline and diesel engines
■ General rotating objects

Compatible detectors

IP-292/296 Ignition pulse detector
IP-3000A/3100 Ignition pulse detector
OM-1200 Motor/gasoline engine RPM detector
TTL signal output detectors

Object of measurement

Ignition coil, primary/secondary ignition cables, ECU rotation pulses (5-V)

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 (when the IP-292, IP-296, IP-3000A, IP-3100 or OM-1200 detector has been selected)
r/min, r/s, m/min, ms, COUNT (when a TTL signal output detector has been selected)

Measurement ranges

	IP-292, IP-296, IP-3000A, IP-3100 OM-1200	TTL signal output detector
r/min	120 to 20000	100 to 99999
r/s	-	1.66 to 99999
m/min	-	0.3 to 99999
COUNT	-	0 to 99999
ms	-	0.6 to 300.0

*The number of pulses per rotation (0.5 to 200.0 P/R) is freely selectable.

Measurement accuracy

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

The measurement accuracy of the line speed depends on the rotational (r/min) accuracy.

Peak hold function

Maximum value (MAX), minimum value (MIN)

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.

Line speed calculation function

Calculates the line speed from the preset diameter value (mm) and the measured number of rotations

Accumulating function

Provides a cumulative count of the input signal pulses

Cycle measurement function

Measures the input pulse cycle
(however, when the cycle is less than 1 s, measures the mean value of the input pulses)

Trigger level adjustment function

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

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 V. 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 16 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

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

Weight

Approx. 280 g (including batteries)

Accessories

AAA alkaline batteries × 4, Carrying case