Signal Conditioning Module DI-8B45

Levertijd:
3~4 weken
SKU
DI-8B45

DI-8B45 Frequency Input Module (0 ~ 100 kHz Input Range)

● Accepts Frequency Input Signals 0 ~ 100 kHz
● TTL or Zero-Crossing Signal Inputs
● High Level Voltage Outputs
● 1500 Vrms Transformer Isolation
● ANSI/IEEE C37.90.1 Transient Protection
● Input Protected up to 240 VAC Continuous
● 100 dB CMR
● 70 dB NMR at 60 Hz
● ±0.05% Accuracy
● ±0.02% Linearity
● Low Drift with Ambient Temperature
● UL, CSA, FM and CE Certifications Pending
● Mix and Match Module Types on Backpanel

DI-8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B45 module isolates and conditions a frequency input signal and provides an analog voltage output. The frequency input signal can be either a TTL level or zero crossing with as little as ±100mV amplitude. Input circuitry for each signal type has built-in hysteresis to prevent spurious noise from corrupting the module output. TTL signals are applied to the + and - terminals while zero crossing signals are applied to the +EXC and - terminals. A 5V excitation is available for use with magnetic pick-up or contact closure type sensors. The excitation is available on the -EXC terminal with return on the - terminal. A special input circuit on the DI-8B45 modules provides protection against accidental connection of power-line voltages up to 240VAC. Clamp circuits on the I/O and power terminals protect against harmful transients. Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%. The modules are designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.
Meer informatie
Art.nr.
DI-8B45
Fabrikant
Dataq Instruments
Land van herkomst
Verenigde Staten
Input Range
0Hz to 500Hz (DI-8B45-01)
0Hz to 1kHz (DI-8B45-02)
0Hz to 2.5kHz (DI-8B45-03)
0Hz to 5kHz (DI-8B45-04)
0Hz to 10kHz (DI-8B45-05)
0Hz to 25kHz (DI-8B45-06)
0Hz to 50kHz (DI-8B45-07)
0Hz to 100kHz (DI-8B45-08)
Output Range
0 to +5V
Excitation Output
+5V at 8mA max
Algemeen
Input Threshold
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
Input Hysteresis
Zero Crossing ±50mV
TTL 1.5V
Input Resistance
Normal 68kΩ
Power Off 68kΩ
Overload 68kΩ
Input Protection
Continuous¹ 240Vrms max
Transient ANSI/IEEE C37.90.1
CMV, Input to Output
Continuous 1500Vrms max
Transient ANSI/IEEE C37.90.1
CMR (50Hz or 60Hz) 100dB
Accuracy² ±0.05% Span
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 Protection (Transient) ANSI/IEEE C37.90.1 (Continuous Short to Ground)
Power Supply Voltage +5VDC ±5%
Power Supply Current 45mA
Power Supply Sensitivity ±50ppm/%
Dimensions 28.1 x 41.9 x 10.2mm
Operating Temperature -40ºC to +85ºC
Storage Temperature -40ºC to +85ºC
Humidity 0 to 95% Noncondensing
¹240VAC between + and -/+EXC/-EXC terminals. 120VAC between - and +EXC/-EXC terminals and between +EXC and -EXC terminals.
²Includes nonlinearity, hysteresis, and repeatability.
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DI-8B Signaling Modules
Signal Conditioning Module DI-8B45
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