● Interfaces RMS Voltage (100 mV to 300 V) ● Designed For Standard Operation With Frequencies of 45 Hz ~ 1 kHz (Extended Range to 20 kHz) ● Compatible With Standard Current and Potential Transformers ● ±0.25% Factory Calibrated Accuracy (Accuracy Class 0.2) ● 1500 Vrms Continuous Transformer Based Isolation ● Input Overload Protected to 480 V Max (Peak AC and DC) or 10A RMS Continuous ● ANSI/IEEE C37.90.1-1989 Transient Protection
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-8B33 module isolates, filters and amplifies a True RMS input signal and provides an analog voltage output.
Signal filtering is accomplished with a three-pole filter optimized for time and frequency response which provides 70dB of normal-mode-rejection at 60Hz. One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other two are on the system side.
A special input circuit on the DI-8B33 module provides protection against accidental connection of power-line voltages up to 30VAC.
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.
0mV to 100mV (DI-8B33-01)
0V to 1V (DI-8B33-02)
0V to 10V (DI-8B33-03)
0V to 150V (DI-8B33-04)
0V to 300V (DI-8B33-05)
Output Range
0 to +5V
Algemeen
Input Frequency Range
Normal
45Hz to 1KHz
Extended
1KHz to 10KHz
Impedance
499 KΩ ± 1 (DB-8B33-01 & DB-8B33-02)
1 MΩ ± 1% (DB-8B33-03, DB-8B33-04, DB-8B33-05)
.05 Ω (DB-8B33-06)
Input Protection
Continuous
300Vrms (DB-8B33-01 - DB-8B33-05)
2Arms (DB-8B33-06)
Transient
ANSI/IEEE C37.90.1 (DB-8B33-01 - DB-8B33-05)
** (DB-8B33-06)
CMV, Input to Output, Input to Power
1500Vrms max
Transient, Input to Output, Input to Powe
ANSI/IEEE C37.90.1
CMR (50Hz or 60Hz)
120dB
Accuracy*
Sinusoid
50/60Hz
±0.15% Span
45Hz to 1KHz
±0.25% Span
1KHz to 10KHz (DB-8B33-02 ~ 05)
±1% Sp
1KHz to 10KHz (DB-8B33-01, DB-8B33-06)
±3% Span
Non-Sinusoid
Crest Factor = 1
±0.15% Span
Crest Factor = 2
±0.20% Span
Crest Factor = 3
±0.25% Span
Crest Factor = 4
±0.45% Span
Vs. Temperature
±100ppm/°C
Response Time, 99% Span
<400ms
Output Voltage Limit
± 9V
Output Ripple and Noise
0.0375% Span rms
Output Protection (Transient)
ANSI/IEEE C37.90.1 (Continuous Short to Ground)
Power Supply Voltage
+5VDC ±5%
Power Supply Current
30mA
Power Supply Sensitivity
±200ppm/%
Dimensions
28.1 x 41.9 x 10.2mm
Operating Temperature
-40ºC to +85ºC
Storage Temperature
-40ºC to +85ºC
Humidity
0 to 90% Noncondensing
*Includes nonlinearity, hysteresis and repeatability.
**For 1 to 25 seconds the max allowable transient current rating is √2500/(event time). For less than 1 second, ANSI/IEEE C37.90.1 applies with a 0.05 Ω load. For greater than 25 seconds, the 2 Arms continuous rating applies.
