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> Altek model 942 frequency calibrator
Altek model 942 frequency calibrator
The manual can be downloaded from the Altek web site
http:// /frequency.asp
Frequency Calibrator with Totalizer Model 942
Handheld Calibrator with the Accuracy of an 8-Digit Counter!
0.001% of setting (10 PPM).
1 to 20000 Counts-Per-Hour (CPH), 0.1 to 2000.0 Counts-Per-Minute (CPM), 0.01 to 999.99 Hz, 0.001 to 99.999 kHz and 0.01 to 250.00 kHz.
Output a selectable number of pulses over 1 to 99 minutes to verify totalizer readings. The calibrator automatically stops outputting when the selected number of pulses has been sent to the totalizer.
Use as a timed totalizer to check flowmeter and integrator outputs. Built-in totalizer to 99999 counts with optional timed operation to 99 minutes up to maximum rate of 100 Hz.
Calibrate flowmeters, frequency transmitters and integrators. Use CPH and CPM ranges to directly display extremely slow signals, eliminating waiting with stop watch and calculator.
* Match Your Receiver's Input
Select from sine, zero crossing square or zero based square wave output. Adjustable amplitude from 50 mV to 12 V p-p.
From 40 mV to 240 V peak. Instantly recall the minimum and maximum frequency measured.
* Quik-Chek Switch Instantly recall 18 output frequencies (three for each range). Fast, easy adjustment with a multi-speed digital potentiometer.
Large alligator clips for easy connections. Optional BNC connector available.
Six AA alkaline batteries last over 40 hours
