Altek 40-A
Frequency Source Model

Altek 40-A Shown

Product Information
Datasheet	139 KB
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Direct Frequency Output—
40 Precise steps 0.5 Hz to 60 KHz
Tuning Fork Crystal—
0.0008% accuracy
Laboratory Stability—
±0.001% per deg C
Zero Based and Zero Counter—
Switch selected outputs
Pocket Sized—
One year battery life

Altek Model 40A Frequency Sources provide 40 precise frequencies from 0.5 to 60,000 Hertz. Output is a square wave of 15 volt peak-to-peak amplitude which can be set to any lower value with a built-in attenuator. Switch selects zero based or zero center outputs for standard or zero crossing outputs.

The Altek Model 40A checks and calibrates the electronics of turbine meters, vortex shredding meters, positive displacement meters, oscilloscopes, electronic counters, tachometers and many other frequency input devices. LED flashes to calibrate optical and fiber optic devices.

Frequency Accuracy is ±8 parts per million. Long term stability is ±3 parts per million per year.

Instant turn-on allows long life from the two 9 volt alkaline batteries (200 hours continuous). Frequency is adjusted with the 8 position frequency selector switch and a 5 position range multiplier switch.

The low cost ALTEK Model 40A is a complete, compact source for checkout and calibration of all frequency instruments in the field, shop, lab, and control room.

Ordering Information
Model	Description	Buy Online	Price
40A	Altek 40A Frequency Source - Special Price!		$364.50 (Reg. $405.00)
Included Accessories
	1 - Users Manual 2 - 9V Alkaline Batteries	Included

Altek 40-A Frequency Source Model

Altek 40-A
Frequency Source Model