your turbine meters, frequency counters, vibration
systems, tachometers, vortex shedders, integrators and
any other frequency devices in the shop, plant or field.
Measure from 0.01 Hz to 250.00 KHz with resolution down
to 0.01Hz. For your slower signals, source or measure
from 0.1 to 2000.0 counts per minute (CPM) or from 10 to
20000 counts per hour (CPH). Quickly indicate process
signals, no more waiting around with stopwatch and
Altek 942 Shown
Use in the field to check the signals from your
flowmeter pickups, velocity and motion detectors,
Frequencies can be directly measured from 0.01 Hz to
250.00 KHz in four frequency ranges.
Measure extremely slow frequencies (less than 1 Hz) with
high resolution using CPM & CPH. Instead of displaying
1/2 Hz as 0.5 Hz (1 digit of resolution) as most with
frequency counters you can display it as 30.0 CPM (3
digits of resolution) or as 1800 CPH (4 digits of
resolution). You can now measure these slow signals in
seconds with the Model 942 instead of many minutes
needed with a totalizer, stopwatch and calculator.
Measure signals from 30 mV to 40 V peak-topeak with a
minimum pulse width of 2 microseconds.
Select sine wave outputs to simulate vibration pickups,
variable speed drives and square waves to simulate
flowmeters and magnetic pickups. Any frequency from 0.01
Hz to 250.00 KHz can be sourced in four frequency ranges
to calibrate tachometers, counters, data loggers,
turbine meters and frequency transmitters. For low
frequency applications such as positive displacement
flowmeters, Watt-hour meters, slow rate integrators and
assembly line counting, the Model 942 sources signals as
low as 1 CPH (0.0002777 Hz). Amplitude is adjustable
from 50 millivolts to 12 volts peak-to-peak.
Calibrate your totalizers & integrators faster and more
accurately with the Model 942. Verify totalizer readings
by outputting a number of pulses over1 to 99 minutes.
The Model 942 will automatically stop when the selected
number of pulses have been sent to the totalizer. This
eliminates waiting several minutes with a stopwatch to
try to catch the total.