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Easy to use

With the Model 541 you can check & calibrate all your frequency instruments and measure flow

sensors. 

Take it into the shop, plant or field

Carry it without worry - it comes with a carrying case and fits into your toolbox.

Accurate to ±0.005% of range.

• Calibrate in Hz, kHz , CPM and CPH

0.001 to 20.000 kHz

0.1 to 2000.0 Hz

0.01 Hz to 200.00 Hz

0.1 to 2000.0 CPM (Counts-per-Minute)

1 to 20000 CPH (Counts-per-Hour)

• Quickly output the frequency you need

Simulate vibration pickups and variable

speed drives with sine wave outputs and

flow meters and magnetic pickups with

square wave outputs. If you calibrate positive

displacement flow meters, Watt-hour meters

or slow rated integrators select frequencies

as slow as 1 CPH (0.0002777 Hz). Easily set

any value quickly to within 0.01 Hz with the

two speed adjustable  EZ-Dial™ plus store

any three frequencies for instant recall with

the EZ-Check™ switch. Verify optical pickups

with the GATE TIME LED that is

synchronized with the output pulses.

• Match your instrument signal levels

Choose zero based or zero crossing square

or sine waves output from 0.1 V to 12 V

peak-to-peak. Measure from 0.1 V to 120 V

peak with X1 or X10 attenuation. Turn the

dial to adjust the output amplitude to the

level required.

• Read signals from flow meters

Measure flow meter, vibration, parts counter

and other process frequency signals from

0.1 V to 120 V. GATE TIME LED flashes with

received pulses indicating when the proper

input adjustment level is achieved.

• Calibrate totalizers without a stopwatch

Automatically output from 1 to 99999 pulses in 1 to 100 minutes. Easier and more accurate than

waiting around with the stopwatch to stop generating pulses at the correct time. Count input

pulses from 1 to 100 minutes to verify totalizer input signals.

PIECAL Model 541

Frequency Calibrator with Totalizer

Operating Instructions

PIECAL Model 541

Frequency Calibrator with Totalizer

Operating Instructions

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

 TestEquipmentDepot.com 

Summary of Contents for PIECAL 541

Page 1: ...ptical pickups with the GATE TIME LED that is synchronized with the output pulses Match your instrument signal levels Choose zero based or zero crossing square or sine waves output from 0 1 V to 12 V peak to peak Measure from 0 1 V to 120 V peak with X1 or X10 attenuation Turn the dial to adjust the output amplitude to the level required Read signals from flow meters Measure flow meter vibration p...

Page 2: ...ero Based Zero Crossing EZ Check HI LO Readings SINE SQUARE Wave output and reset to BASIC CONFIGURATION t READ GATE TIME Key Press and release READ GATE TIME key to step through the read ranges Read CPH 1 20000 Read CPM 0 1 2000 0 Read HZ 0 01 200 00 Read HZ 0 1 2000 0 Read KHZ 0 001 20 000 Totalizer Press and hold the READ GATE TIME key to enable time adjustment for Source Read Totalize mode Tur...

Page 3: ...aks that are centered around zero Select zero based when the instruments you are calibrating require only positive signals Note To simulate negative only signals select zero based and connect the red lead to the ground and the black lead to the input connection of the instrument being calibrated Press and release the MENU or STORE CLEAR Key to save your selection EZ CHECK pressing the knob will to...

Page 4: ...y Instruments SOURCE CPH 1 20000 20000 HI Storing EZ Check Outputs STORING HI and LO EZ Check Outputs 1 Store your high SPAN output frequency by moving the EZ Check switch q to the HI position and turn the EZ Dial knob u until the desired frequency is on the display Press the STORE CLEAR Key and STORED appears on the display 2 Store your low ZERO output frequency by moving the EZ Check switch q to...

Page 5: ... 541 to the input of the device to be calibrated 5 Press the EZ Step push button q like a stop watch to start outputting pulses The word RUN will appear on the display and the 541 display increments with each pulse while the totalizer is running When the selected number of seconds has elapsed the word STOP appears on the display and the total number of pulses sourced during the time appears on the...

Page 6: ... adjust the totalize time from 1 to 100 minutes Press and release the READ GATE TIME or STORE CLEAR button to save your selection 3 Connect the 541 to the output of the device to be calibrated 4 Turn the EZ Dial knob u to adjust the trigger level of the 541 The LED will light when the 541 locks onto the input signal indicating that it is properly detecting the signal 5 Press the EZ Step push butto...

Page 7: ...Rejection 50 60 Hz 50 dB 50 60 Hz 90 dB Read Frequency Input Impedance 1 Megohms 100pF Signal Attenuation Adjustment Range Adjustable trigger level with X1 0 1 V peak to 12 0 V peak and X10 1 V Peak to 120 V peak Note on reading slow sine waves High signal noise and low slew rate Volts per second will affect reading uncertainty Source Frequency Output Impedance 25 Ohms Source Current 6 mA at 12 V ...

Page 8: ...warranty can be made by returning the equipment prepaid to our factory The equipment will be repaired replaced or adjusted at our option The liability of Practical Instrument Electronics PIE is restricted to that given under our warranty No responsibility is accepted for damage loss or other expense incurred through sale or use of our equipment Under no condition shall Practical Instrument Electro...

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