Dial Test Indicators

Digital Hand Tachometers

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Digital Hand Tachometer

The unit is supplied either with the contacting or non contacting head (both heads can be supplied with one unit if required). There is also the option to purchase an optical extension lead (2m in length) to access any physically constrained machinery under test.



Digital Hand Tachometer

Features:


Specification

Microtach 8300 Contacting Microtach 8400 Non-Contacting
Tachometer Display
Range 0·30-19,999rpm
Resolution 0·01rpm auto range (999·9rpm)
1rpm normal range
Digits five
Type LCD, seven segments 10·2mm high
Display Update 0·5 to 1 second
Accuracy ±0·008% or reading ± L.S.digit
Operating Indicators
Static & Under Range -U-display under 0·3rpm in auto range
-U-display under 4rpm in normal range
Out of range -E-display above 19,999 rpm
Battery Low Flashing between 3rd and 4th digits
Detection System
Method Projection throught built-in slit disc
Light Source LED
Sensor Phototransistor
Pules 15 pulse per revolution
Optical Extension Lead Socket for 3·5mm jack plug
(See Optional Accessories)
Data Storage
Memory recall Push button (R) operated
2 minutes (extendible)
Additional Functions Highest reading
Lowest reading
Last reading
Industial Timer
Range 0 to 9 hours 59 minutes
Resolution 1 second
Accuracy 1 second (in 10 hours)
Power Source
Recommended 4×1·5V AA size alkaline batteries to IEC R6 specification
Optional 4×1·2V AA nickel cadmium rechargeable batteries
Battery Life
Time 'M' Button held (seconds) Number of Operations
5
10
20		 >3500
>3200
>2700
General
Temperature Storage: -40oC to +70oC
Operating: -0oC to +45oC
Weight instrument, contact pieces plus case - 700gms
Dimensions 214×70×54mm
Standard Accessories
Carrying Case Robust with protective foam inserts
Contacts Pieces Male & Female rubber centres, combined surface speed disc for metres/min and feet/min.
Tachometer Display
Range 4-99,999rpm
Resolution 0·01rpm auto range (999·9rpm)
1rpm normal range
Digits five
Type LCD, seven segments 10·2mm high
Display Update 0·5 to 1 second
Accuracy ±0·008% or reading ± L.S.digit up to 59,999rpm
±0·008% of reading ± an error of two in the L.S. digit from 60,000rpm
Operating Indicators
Static & Under Range -U-display under 0·4rpm in auto range
-U-display under 60rpm - normal range
Out of range -E-display above 99,999 rpm
Battery Low Flashing between 3rd and 4th digits
Detection System
Method Reflection
Effective Distance From 150mm to 1m from reflection mark
Light Source Visible Light Beam
Sensing Element Phototransistor
Reflection Mark Single piece of reflective tape
Optical Extension Lead Socket for 3·5mm jack plug
(See Optional Accessories)
Data Storage
Memory recall Push button (R) operated
2 minutes (extendible)
Additional Functions Highest reading
Lowest reading
Last reading
Industial Timer
Range 0 to 9 hours 59 minutes
Resolution 1 second
Accuracy 1 second (in 10 hours)
Power Source
Recommended 4×1·5V AA size alkaline batteries to IEC R6 specification
Optional 4×1·2V AA nickel cadmium rechargeable batteries
Battery Life
Time 'M' Button held (seconds) Number of Operations
5
10
20		 >2500
>2000
>1400
General
Temperature Storage: -40oC to +70oC
Operating: -0oC to +45oC
Weight instrument plus carrying case - 600grams
Dimensions 255×70×54mm
Standard Accessories
Carrying Case Robust with protective foam inserts
Reflective Tape 500mm length of tape supplied as standard.


Optional Accessories
Optical Extension Lead - Part No. HDM 600
Description: 2 Metre flexible lead with 3·5mm jack plug and visible light optical sensor. Can be used with 8300 and 8400 tachometer.
Range: 4 - 99,999 rpm.
Accuracy: ±0·008% of rading ± one LS digit up to 59,999 rpm. ±0·008% of reading ± an error of two in the LS digit from 60,000 rpm.
Effective Distance: from 100 - 200mm from reflective tape.
Reflective Tape - Part No. HDM 530/6 - Reflective tape 6×1 metre lengths.

Tel: (01704) 505333 Fax: (01704) 505334
E-mail:sales@instruments-gauges.co.uk