It typically consists of a display unit, a light source, a photo sensor, and a rotating object or wheel. The HTM 890 Photo Contact Digital Tachometer is a highly accurate and reliable instrument designed for measuring rotational speed in mechanical and industrial applications. This tachometer features a large, easy-to-read LED display and a wide range of selectable measurement units. The HTM 890 also features a self-calibrating system that helps to ensure accurate measurements and a wide range of digital output options, including a serial port and a USB port. This tachometer is suitable for monitoring a variety of rotating machinery such as motors, pumps, compressors, blowers, and fans. It is also capable of storing up to 99 readings for comparison and troubleshooting purposes.
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₹3,720.00 Original price was: ₹3,720.00.₹3,200.00Current price is: ₹3,200.00.
Shipping Timing: 2-5 Business Days.
Used in industrial applications to monitor the performance of motors.
Ranges | 60 RPM – 50,000 RPM (contact side) 6 m/min – 5000 m/min (surface speed) 60 RPM – 1,00,000 RPM (photo side) |
Resolution | 0.1 RPM: 0 – 1000 RPM | 1 RPM: > 1000 RPM 0.01 : 0 – 100 meter/min | 0.1 : > 100 meter/min |
Display Type | 5 DIGITS 10mm(0.38”) height RED LED |
Accuracy | + 0.05% + 1 Digit |
Sampling Rate | 1 second |
Time Base | Quartz Crystal Controlled |
Measuring Distance | 75mm (3 inch) to 300mm (12 inch) (Photo side) |
Low Battery | Indicated by “Lobat” when the battery voltage drops below operating voltage |
Memory Recall | ‘Last’, ‘Max’, ‘Min’ Values memorized automatically, upto 120sec can be recalled |
Power Source | 4 X 1.5V AA Battery. Auto Shut off feature included |
Battery Life | 90hrs for alkaline batteries (contact side) 30hrs for Carbon-Zinc batteries (contact side) 24hrs for alkaline batteries (Photo side) 12hrs for Carbon-Zinc batteries (Photo side) |
Operating Temperature | 0° Celsius to 60° Celsius (32° F to 140° F ) |
Size | 70 x 200 x 40mm (2.8 x 7.8 x 1.6 inch) |
Weight | 320grams including battery |
Standard Accessories | Male rubber contact tip– 2nos Female rubber contact tip– 2nos Peripheral rubber contact tip– 1nos Reflective tape (Marks) 1000x12mm(40×0.5 inch)–1nos Padded Carrying Case–1nos User Manual– 1nos |
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