Tachometer

• Model NO.: DT-2236

Product Description

Photo/Contact Tachometer
Model: DT-2236  DT-2236L(Laser Type)  DT-2858  DT-2857  DT-2856

 

 

Applications
Used to measure rotative velocity, surface speed, frequency of motor. Applicable to the product departments of motor, fan, paper-product, chemical fiber, washing-machine, automobile, airplane, steamer etc.
* DT-2236/DT2858 combine PHOTO TACH. & CONTACT TACH.. Also can test surface speed.
* DT-2857 is PHOTO TACH..
* DT-2856 combines PHOTO TACH. & CONTACT TACH..

 

Features

* Multifunctional, one instrument combines PHOTO TACH.(RPM) & CONTACT TACH. (RPM).
* Digital display with no guessing errors.
* Wide measuring range and high resolution.
* The last value / max. value / min. value will be automatically stored in memory.
* The use of durable, long-lasting components, including a strong, light weight ABS-plastic housing assures elegant shape and ease of use.

Memory Functions

For this series of tachometers, A readout (the last Value, max. Value, min. Value) obtained immediately before releasing the MEASURE BUTTON is automatically memorized. For example, please refer to figure on the right. That memorized values can be displayed on the indicator when A. First push-To display the last value: LA and the last value will be displayed by turn. B. Second push-To display the maximum value: UP and the max. value will be displayed by turn. C. Third push-To display the minimum value: dn and the min. value will be displayed by turn.

Model & Applications
 

Model	Photo	Contact	Surface Speed	Frequency	Cycle	Pulse Times	Pulse Distance
DT-2859	√	√	√	√	√	√	√
DT-2236	√	√	√	-	-	-	-
DT-2858	√	√	√	-	-	-	-
DT-2857	√	-	-	-	-	-	-
DT-2856	√	√	-	-	-	-	-

Specifications
 

Model		DT-2236	DT-2858	DT-2857	DT-2856
		DT-2236L(Laser Type)
Range	Laser	2.5~99,999r/min
	Contact	0.5~19,999r/min		-------	0.5~19,999r/min
	Surface Speed	0.05~1999.9 m/min		-------	-------
		0.2~6560 ft/min		-------	-------
Resolution	Tachometer	0.1 r/min(0.5~999.9 r/min)
		1 r/min(Over 1000 r/min)
	Surface Speed	0.01 m/min(0.05~99.9 m/min)
		1 m/min(Over 100 m/min)
		0.1 ft/min(0.1~999.9 ft/min)
		1 ft/min(Over 1000 ft/min)
Accuracy		±(0.05%n+1d)
Sampling Time		1.0 s(Over 60 r/min)
Test Range Select		Automation
Memory		Max / Min / Last Value
Time Base		Quartz Crystal
Laser Tach Detecting Distance		50~150mm/2~6inch(Typical),Max,300mm/12inch		50~250mm/2~10inch(Typical),Max600mm/14 inch	50~150mm/2~6inch(Typical),Max300mm/12inch
Power Supply		80mA(Testing)
Dimensions		0~50ºC
Weight		4x1.5V AA Size(UM-3)Battery
Standard Accessories		215x64x38mm	215x74x32mm	145x74x32mm	215x74x32mm
		300g	280g	260g	280g
		Main Unit
		Surface Speed Test Wheel(AS35C)		-------	-------
		Cone Adapter(AS35A)		-------	Cone Adapter(AS35A)
		Funnel Adapter(AS35B)		-------	Funnel Adapter(AS35B)
		Reflective Tape 350mm
		Carrying Case(B01)
		Operation Manual