Nominal Input Range

0 to 25,000 Hz

Input Over-Range

To 27,500 Hz

Resolution

1 Hz

Input Response Time(% of span / delta Hz / delta time)

10.0% / 2,500 Hz / 0.1 sec
63.2% / 15.8 K Hz / 0.9 sec
99.0% / 24.75 K Hz / 4.2 sec

Data Freshness (Max)

126 ms

DC Common Mode Rejection

> -120 dB

AC Common Mode Rejection

> -120 dB at 60 Hz

Maximum Operating Common Mode Voltage

250 V

Accuracy (% full scale)

±4 Hz or ±0.5% of the input fre­quency (whichever is greater)

Drift: Gain Temperature Coeffi­cient

200 ppm / °C

Drift: Offset Temperature Coef­ficient

50 ppm / °C

Input Coupling

Single-ended AC (capacitor coupled)

Input Amplitude
Sine wave
Square wave

2.5 V to 24 V p-p
0.5 V to 24 V p-p

Minimum Pulse Width

18 microseconds

Input Impedance (Inputs share the same reference point.)
Pull-up Voltage
Pull-up Resistor

50 K ohms AC coupled
(-input to +input)
6 to 9 V
4.7 K ohms

Isolation

1500 V

Power Requirements

5 VDC (±0.15 V) at 190 mA

Operating Temperature

-20 °C to 70 °C

Storage Temperature

-40 °C to 85 °C

Humidity

5-95%, non-condensing

Wire size

22 to 14 AWG

Torque, hold-down screws

4 in-lb (0.45 N-m)

Torque, connector screws

5.26 in-lb (0.6 N-m)

Agency Approvals

UL, FM, CE, RoHS, DFARS; UKCA

Warranty

Lifetime