ONOSOKKIContact and non-contact digital handheld tachometerHT-5500HT-5500 brings together the technologies in the field of speed measurement. It has an exquisite shell design and complete functions. It can perform both contact and non-contact measurements. It is easy to use and is a high-performance handheld digital tachometer. The measurement items include: speed (r/min, r/s), cumulative speed (counting), circumferential linear speed (m/min contact or non-contact, mm/s contact), period (ms), etc. It can also output analog and pulse signals (standard configuration). The analog signal output can be used to connect a pen recorder to record measurement data, and the pulse signal can be used to connect an FFT analyzer for tracking analysis. The measurement range is from 6.0 r/min (low speed range) to 99,999 r/min (high speed range). It is a handheld tachometer with a wide range and complete functions. Measuring range Non-contact method Contact method r/min (Lo range) 6.0 to 600.0 6.0 to 600.0 r/min (Hi range) 6 to 99999 r/min 6 to 20000 r/min r/s 0.10 to 999.99 r/s 0.10 to 400.00 r/sm/min 0.6 to 9999.9 m/min 0.6 to 400.0 m/min COUNT 0 to 99999 COUNT 0 to 99999 COUNT ms 0.6 to 9999.9 ms 2.5 to 9999.9 ms Reflected light measurement distance 20 to 300 mm Display section LCD display 5 digits, with background lighting Measurement interval within 1 second + 1 cycle (when the measured speed drops below 60r/min, the maximum measurement time is twice the cycle) Data display refresh interval is about 1 second Measurement accuracy Display value (*) × (±0.02%) = ±1 digit* Display value is a count value without a decimal point (Note) ◆ The measurement accuracy of the circular speed is determined by the speed of the measured rotating body. ◆ The above measurement accuracy is a non-contact measurement method and does not include the error of hand shaking during measurement. When the measurement method is contact, the slippage of the measuring probe will also affect the accuracy. Peak hold functionMaximum value (MAX) and minimum value (MIN)Memory storage functionUp to 20 data can be storedOverflow functionWhen the measured value exceeds the measurement range, an overflow (ERROR sign) is displayedSpeed upper limit warning functionWhen the speed measurement value exceeds the preset upper limit, an upper limit warning (↑ sign) is displayedCircular speed calculation functionCalculates the circumferential speed of the object to be measured based on the preset diameter (mm) of the object to be measured through the measured speed (non-contact method)When the measurement method is contact, the attached circular speed measuring ring KS-100/200 can be used for direct measurementAccumulation calculation functionCounts the pulses of the input signalPeriod measurement functionMeasures the period of the input pulse (but when the period of the measured input pulse is less than 1 second, take the average value)Analog outputOutput voltage: 0~1V/0~full scale (full scale can be set arbitrarily)Conversion method: 10bitD/A conversionLinearity: ±1 %/full scale Output signal refresh time: less than 50ms+1 cycle time Temperature stability: ±0.05%/full scale/℃ (zero point and span) Setting error: ±0.5%/full scale Load impedance: greater than 100kΩ Pulse output Output voltage: Hi level greater than +4.5V; Lo level less than +0.5V Logic theory of output level: positive logic Load impedance: greater than 100kΩ Operating temperature range 0 ~ +40℃ Storage temperature range -10℃ ~ +50℃ Power supply 7th dry battery (1.5V) × 4 pieces, or use dedicated AC power adapter PB-7090 (optional) Battery life is greater than 32 hours (backlight OFF), 8 hours (backlight ON) Low battery warning display When the battery voltage drops below approximately 4.5 V, the low battery warning (LOW mark) will appear. Dimensions 66 (W) × 180.5 (H) × 47.5 (D) mm (main unit) 66 (W) × 237.2 (H) × 57.5 (D) mm (including contact probe adapter) Weight (including dry cell batteries) Approx. 220 g (main unit) Approx. 282 g (including contact probe adapter) Accessories HT-0502 Contact probe adapter × 1 KS-300 speed probe × 1 KS-200 circumferential speed ring × 1 Reflective film × 1 sheet (dividable into 25 12 mm square pieces) 4 AA dry cell batteries Carrying case × 1 Instruction manual (function introduction, basic operation instructions) × 1 Optional accessories PB-7090 AC power adapter AX-501 Output signal cable with BNC connector (2 m for both analog and pulse output) HT-011 Reflective film (1 set of 10 sheets) HT-0521B Measuring fixture (used with HT-0522 magnetic stand) HT-0522 magnetic stand (used with HT-0521B measuring fixture) Measuring tripod (made by SLIK) KS-100 Circular speed measuring ring (used to measure the circumferential speed, unit: mm/s) KS-200 Circular speed measuring ring (used to measure the circumferential speed, unit: m/min) KS-300 Speed measuring probe (conical rubber probe used to measure the speed) KS-700 Relay connector (used to extend the length of the speed measuring probe KS-300)