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Excellent performance is coupled with flexibility and small package size

The Dynapar™ MAX®jr Tach family set the standard for low cost industrial rate controllers. Programmable calibration factor and decimal point allow speed to be displayed in units, such as: feet/minute, gallons/ minute, etc. Combining high accuracy measurement with alarm capability, built-in diagnostics, large, bright LED display, simple programming and compact size makes the MAX®jr Tachs a best value.
Unit of Measure

Technical Specs

Brands

 N/A
Dynapar™

Model

 N/A Maxjr Tach 1 and Tach 2

Type

 N/A Controller

Display

 N/A 5 digit, 0.56 in. LED; update rate 0.7 seconds or 1 signal period

Operating Temperature

 N/A 32 to 122 ºF0 to 50 ºC

Alarms

 N/A 1 Each high and low; open collector outputs

Panel Mounting (Cutout)

 N/A 1.78 x 3.56 in

Panel Mounting Depth

 N/A 5.68 in

Accuracy

 N/A ± 0.01% crystal controlled

Inputs

 N/A Magnetic (sine wave), pulsed (square wave) open collector, TTL, CMOS or line driver; 10 kHz max.

Calibration

 N/A Programmable 0.0001 to 99999

Power Requirements

 N/A 95 to 130, or 190 to 260 VAC, 50/60 Hz, 6 VA; 10 to 26 VDC at 0.4 A max.

Accessory Power

 N/A +12 VDC ± 25% at 0 to 125 mA

Features

N/A

  • Calibration factor allows display in engineering units
  • 0.01% accurate time interval measurement
  • Large, bright 0.56" high red LED display
  • Full 5 digit display capability
  • High and low alarm setpoints with outputs
  • Sealed NEMA 4 front panel
  • Programmable decimal point position
  • Built-in diagnostics

Additional Information

N/A The MAX®jr Tach 1 Rate Indicator/Controller performs the basic rate or speed measurement functions. The MAX®jr Tach 2 provides a choice of operating modes: rate of input A, as in the MAX®jr Tach 1; ratio of two independent inputs A and B; and time interval, which can be the period of A or the elapsed time between inputs A (start) and B (stop).