Frequency (RPM) Input Module for the DI-4718B Data Logger.
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DI-8B45 Frequency RPM Amplifier for the DI-4718B Data Logger from DATAQ Instruments.
| Input Threshold: | Zero Crossing Minimum Input: 100mVp-p Maximum Input: 350Vp-p TTL, 170Vp-p Zero Crossing Minimum Pulse Width: 4µs TTL Input Low: 0.8V max TTL Input High: 2.4V min |
| Input Hysteresis: | Zero Crossing: ±50mV TTL: 1.5V |
| Input Resistance: | Normal: 68kΩ Power Off: 68kΩ Overload: 68kΩ |
| Input Protection: | Continuous: 240VAC (8B30-01: 120VAC) Transient: ANSI/IEEE C37.90.1 |
| Excitation: | +5V at 8mA max |
| CMV, Input to Output: | Continuous: 1500Vrms Transient: ANSI/IEEE C37.90.1 |
| CMR (50Hz or 60Hz): | 100dB |
| Accuracy: | ±0.05% Span (Includes nonlinearity, hysteresis and repeatability) |
| Nonlinearity: | ±0.02% Span |
| Stability: | Offset: ±25ppm/ºC Gain: ±100ppm/ºC |
| Noise: | Output Ripple: <10mVp-p at Input> 2% Span |
| Response Time, 90% Span: | 160ms, 80ms, 35ms, 16ms, 8.5ms, 3.4ms, 1.6ms, 0.8ms |
| Output Range: | 0 to +5V |
| Output Protection: | Transient: Continuous Short to Ground ANSI/IEEE C37.90.1 |
| Power Supply Voltage: | +5VDC ±5% |
| Power Supply Current: | 45mA |
| Power Supply Sensitivity: | ±50ppm/% |
| Mechanical Dimensions: | 28.1mm × 41.9mm × 10.2mm |
| Operating Temperature: | -40ºC to +85ºC |
| Storage Temperature: | -40ºC to +85ºC |
| Relative Humidity: | 0 to 95% Noncondensing |
DAQLOG Systems Ltd
Brixham Laboratory
Freshwater Quarry, Brixham, TQ5 8BA
Tel: 01803 611 854
