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AI-TEK, formerly Airpax Instruments, provides a complete line of; tachometers, speed indicators, variable reluctance speed sensors, magneto-resistive and Hall Effect Sensors to measure rotary speed. 
 


Tachometers  
These Items are OBSOLETE and this information is for REFERENCE ONLY.

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Airpax Tachometers and Speed Sensors

Most AI-TEK sensors are in stock and can be shipped within one day. Toll free application assistance is always available. A comment on ownership - please click  here.

 

Note: All models - and special designs - are available.

 
 

Please contact us via
email, FAX or phone for help in selecting the correct sensor or other technical information.
 
  Tach-pak 3   Tachtrol 2   Tachtrol 3 
Click Here to access detailed info on all products.

Tach-Pak 3 - Digital Process Tachometer - NonIndicating


The AI-TEK Tach-Pak 3 computing tachometer is a single channel instrument. It measures input frequency and converts the resulting quantities to a meter output, an analog output and four relays.  The microcomputer based Tach-Pak 3 permits a combination of fast response and high accuracy.  The instrument functions can be easily programmed in the field or altered at any time using a unique internal switch design.

Typically, this instrument is used with magnetic sensors as a signal source.  However, it may receive a sine wave or TTL signal from any frequency source.

 
  • Quick Response - 50 ms updates above 100Hz

  • Digital Configuration - Utilizes adaptive period averaging & floating point calculation

  • High accuracy.  =/-.5% for analog outputs & +/- .05% for relay setpoints.

  • 2 Analog Current Outputs 0-1ma, 0-20ma, 4-20ma.

  • Field Programmable - No additional calibration required

  • 4 relays - Sealed 6 amp SPDT auto reset or latching

  • AC or DC Power

  • CSA Listed

AI-TEK Tach-Pak 3
Fast response overspeed shutdown
PLC or DCS interface
Petrochemical production
Pump or generator alarm
Low Speed Tachometer
Expanding analog scale speed transmitter
Start-up, over/under speed switching
Textile production applications
RPM measurement
Paper and pulp production
Turbine speed control input
Metal production
Mining applications
Frequency measurement
Test labs
Generator sets
Food processing
Conveyor protection
Printing industry

Part No.

Input Power

Enclosure

Price($)

Order Now

T77430-11
120VAC/24VDC
NEMA 1
$695.00
T77430-12
240VAC/24VDC
NEMA 1
$695.00
T77430-41
120VAC/24VDC
NEMA 4X
$865.00
T77430-42
240VAC/24VDC
NEMA 4X
$865.00
T77430-71
120VAC/24VDC
Explosion Proof
$1475.00
T77430-72
240VAC/24VDC
Explosion Proof
$1475.00
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AI-TEK Tachtrol 2 

The AI-TEK Tachtrol 2 speed/rate monitor is a single channel digital indicator.  It displays measured values in engineering units: RPM,FPM, frequency or other values.  This is an indicator only and does not have any output.Although the Tachtrol3 can handle all the requirements that were formely served by the tachtrol 2, you may find that you do not need all its features. If you need an indicator only, please contact us and we will assist you with appropriate selection of a product.

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AI-TEK Tachtrol 3 - Dual Input Indicating Digital Tachometer

The AI-TEK Tachtrol 3 computing tachometer is a single or dual channel instrument. It measures input frequencies and displays the resulting quantities in RPM, FPM, %Draw or other rates.  Measurement using the period mode (time per event) permits a combination of fast response and high accuracy. 

  • Single or dual channel
  • 2 relay setpoints
  • 9 computed functions

  • 4-20 ma, 0-20ma outputs

  • Measures speed or freq

  • 0-10 VDC, 0-5VDC output

  • Adjustable normalization

  • RS232C serial output

  • Active or passive sensor inputs

  • Expanded & suppressed scale

  • Autoranging LED display

  • Optional housings

  • AC or DC power Panel mount DIN housing

  • Easily re-configured

  • Functions indicators

  • .05% display & relay accuracy

  • Field adjustable

  • MMIL 810C vibration & shock

  • 0- 50C operating temperature

AI-TEK Tachtrol 3
Fast response overspeed shutdown
2 Channel Speed/Draw Monitor
Bi-directional Tachometer
Reverse Rotation Alarm
Low Speed Tachometer
Clutch Slip Alarm
Winder Control
Ahead/Astern Marine Tachometer
Expanded Analog Scale Speed Transmitter
Flow Rate Monitor
Process Time Monitor
Time per Event Monitor
Autoranging Tachometer
Computer Signal Conditioner
Test labs
Averaging Tachometer
Line Frequency Monitor 60.00 Hz/400.0 Hz
RS232 Speed Transmitter

Part No.

Input Power

Enclosure

Price($)

Order Now

T77310-01
120VAC/24VDC
None*
$795.00
T77310-02
240VAC/24VDC
None*
$795.00
T77310-11
120VAC/24VDC
Std Panel Mount
$795.00
T77310-12
240VAC/24VDC
Std Panel Mount
$795.00
T77310-21
120VAC/24VDC
Splashproof Panel Mount
$885.00
T77310-22
240VAC/24VDC
Splashproof Panel Mount
$885.00
T77310-41
120VAC/24VDC
NEMA 4X
$1025.00
T77310-42
240VAC/24VDC
NEMA 4X
$1025.00
T77310-71
120VAC/24VDC
Explosion Proof
$1995.00
T77310-72
240VAC/24VDC
Explosion Proof
$1995.00
 
* Intended for use with Explosion Proof enclosure or other mounting provisions.
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