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Model CT500

Portable Digital Tachometer (Contact/Non-Contact)

Features

Multi-function: One instrument combines Photo-tachometer (RPM) & Contact Tachometer (RPM & m/min).
Wide Measurement range from 15 RPM to 75,000 RPM.
The last measured value is automatically stored in memory when the 'measure' button is released.
High contrast LCD display with leading zero blanking gives the exact RPM.
The battery consumption is very low. In Non-measure mode i.e. the measure button is released (memory ON), the battery consumption is still lower.
This tachometer uses an advanced Micro Computer LSI Circuit with Quartz Crystal time base to give high accuracy and fast measurement.
A high intensity RED LED for photo- tachometer gives a visible low current consumption beam. Unlike a filament bulb, an LED has almost infinite life.
The use of a durable, strong ABS plastic housing assures maintenance free performance for many years. This housing fits comfortably in the palm of the user.

Specification

Display	: 4 Digit LCD with Leading Zero Blanking.
Measurement	: a) PHOTO- TACHOMETER
	Range	: 20 RPM to 75,000 RPM (Resolution 10 RPM over 9,999 RPM)
	Distance	:Operating from 3 to 5 inch using a Reflective Photo-Reflective Sticker.
	Light	: Red Visible LED Light ( No Filament Bulb Used)
	: b) CONTACT TACHOMETER
	Range	: 15 RPM to 25,000 RPM (Resolution 10 RPM over 9,999 RPM). The Upper Speed is Limited by Error caused by Rubber Roller Slippage.
	: c) SURFACE SPEED
	Range	: 2 TO 2,500 RPM
	For all Operations, (CONTACT/NON-CONTACT) an LED indicates when the RPM exceeds 10,000 & effectively a 'x 10' comes into operation.
Power Supply	: 4 standard Pencil Cells.
Accuracy	: 1 RPM ± 1 LSD below 9,999 RPM & 10 RPM ± 1 LSD above 10,000 RPM
Calibration	: Referred to Quartzz Crystal.
Sampling Time	: 1 sec. over60 RPM
Circuit	: Micro Controller based LSI
Operation Temperature	: 0 - 50°C
Size	: 160x 60x 45 mm
Weight	: approx 300 grms
Memory	: Automatic when 'Measure' Button is released; Last Reading stored
Accessories	: Carrying Case- 1 pc.
	RPM Adapter (Cone) - 2 pc. RPM Adapter (Conical) - 1 pc. Surface Speed Wheel - 1 pc. (10 cm Circumference) Operation Manual - 1pc. Reflecting Tape - 1m 1.5V x 4 Pencil Cells