TACHO METER (RPM METER)

Hand-Held
Contact Type

-81C     Rs. 1400/-

Hand-Held
Non Contact Type

-81N     Rs. 1400/-

Panel mounting,
non-contact type
with proximity sensor

-81N-PM Rs.1400/-

-81is useful for measurements of RPM’s of motors, mixers, pumps, fans, etc. and surface speeds of conveyor belts etc. Useful for industries, railways, electricity boards, defence establishments, R&D organizations, communication centers, laboratories, colleges.

Accuracy of ± 0.05% ± 1 digit. Sampling rate of 1 sample per second. Quartz crystal controlled time base provides high accuracy. Auto ranging micro controller based.

5 digit bright LED display of
10mm height with memories of last, highest and lowest readings.

60 to 50000 RPM for rotational speeds. Auto-ranging. Resolution 0.1 RPM from 60 to 1000 RPM. 1 RPM from 1000 to 50000 RPM.
6 to 5000 MPM (meters per minute) for surface speeds
with resolution of 0.1 RPM.

Choice of battery operation with 4 pen cells of 1.5 volts, or mains voltage 230 ± 10% volts AC, 50/60 Hertz with the help of battery adaptor supplied.
Auto power off facility has been provided to help conserve cell life.

Size of 40 mm (H) X 75 mm (W)
X 200 mm (L). 330 gms.

Supplied with battery adaptor, instruction manual and padded plastic carrying case, conical type male rubber tip, hollowed funnel type female contact tip and disc type peripheral rubber wheel for surface speed measurements.

5 digit bright LED display of 10mm height with memories of last, highest and lowest readings.

60 to 1,00,000 RPM. Auto-ranging. Resolution 0.1 RPM for 60 to 1000 RPM and 1 RPM from 1000 to 100000 RPM. Measuring range is from 4 inches to 12 inches.

Choice of battery operation with 4 pen cells of 1.5 volts, or mains voltage 230 ± 10% volts AC, 50/60 Hertz with the help of battery adaptor supplied. Auto power off facility has been provided to help conserve cell life.

Size of 40 mm (H) X 75 mm (W) X 200 mm (L). 280 gms.

Supplied with Battery adaptor, photo reflective tape of 1000 X 12mm, instruction manual and padded plastic carrying case.

5 digit bright LED display of 12.5 mm height.

60 to 50000 RPM. Auto-ranging. Resolution is 0.1 RPM for 60 to 1000 RPM, 1 RPM from 1000 to 50000 RPM.

PNP type proximity sensor of 70 mm length and 18 mm diameter with lock nut. The sensor should be mounted with front plane at a distance of 3 to 5 mm from a M.S. bolt, teeth, pulsor disc or wheel (which is to concentrically mounted on the rotating shaft of rotor or drive) of rotating shaft.

230 ± 10% volts AC, 50/60 Hertz, operate at 4VA.

Size of 48 mm (H) x 96 mm (W) x 120 mm (D). 500 gms.

Supplied with Proximity sensor and instruction manual.