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Practical Instrument Electronics
Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Specifications
RTD and OHMS Source
Accuracy
From 1 to 10.2 mA
External Excitation Current
Below 1 mA of External
Excitation Current
±(0.03% of Full Scale + 0.075 Ohms)
±(0.03% of Full Scale+0.075 Ohms +
Resistance Ranges
0.0 to 401.0, 0 to 4010 Ohms
Allowable Excitation Current Range
<401 Ohm:10.2 mA max; steady or pulsed/intermittent
401 to 4000 Ohms: 1 mA max; steady or pulsed/intermittent
Pulsed Excitation Current Compatibility
DC to 0.01 second pulse width
0.025 mV
mA Excitation Current
)
Frequency Source
Ranges
1 to 2000 CPM, 0.01 to 999.99 Hz, 0.1 to 9999.9 Hz, 0.001
to 20.000 kHz
Accuracy
±(0.03% of Full Scale)
Output Waveform
Square Wave, Zero Crossing -1.0 to +5 V peak-to-peak ±10%
Risetime (10 to 90% of amplitude)
< 10 microseconds
Output Impedance
< 1 Ohm
Source Current
> 1 mA rms at 20 kHz
Short Circuit Duration
Infinite
Optical Coupling
Green LED (HZ SYNC) flashes at output frequency
Frequency Read
Ranges & Accuracy
Same as Frequency Source
Accuracy
±(0.03% of Full Scale)
Trigger Level
1 V rms, dc coupled
Input Impedance
> 1 Meg Ohm + 60 pF
