HE670ADC840 | General Electric | Analog isolation input module en Fujian, China
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Especificaciones
- Condición
- nuevo
- Dimensions
- 6.8x13.1cmx13.5cm
- Weight
- 0.65 kg
- Mfr. part number
- HE670ADC840
- Contact details
- E-mail: Skype:dddemi33 Whatsapp/Wechat:+86 18030235313 Manager: Tiffany
- Open circuit detection time
- 5 seconds max. Open circuit detection is available for all configurations except +/- 20mA current, 0-20mA current, and +/-10V voltage.
- Max overvoltage
- +/-14.5VDC continuous
- Max overcurrent
- 28 mA continuous
- Normal mode noise rejection
- 95 dB minimum @ 50/60 Hz with 8 Hz filter 85 dB minimum @ 50/60 Hz with 12 Hz filter
- Common mode noise rejection
- 120dB minimum @ 50/60 Hz with 8 Hz filter 110dB minimum @ 50/60 Hz with 12 Hz filter
- Settling time to 5% of full scale (notch filter dependent)
- ＜80 mS
- Calibrated accuracy at 25°c
- Better than 0.1% of range (except 10 ohm CU RTD) Accuracy depends on A/D filter, data format, input noise, and ambient temperature.
- Calibration interval
- 12 months typical to meet accuracy specifications over time. Module will allow for user offset to be applied as a periodic calibration adjustment.
- Input offset drift with temperature
- 3.0 milliohm/°C maximum 2.0 uV/°C maximum
- Gain drift with temperature
- 50 ppm/°C typical (90 ppm/°C maximum)
- Module error over full temp range
- 0.5% of range typical (depends on range) 1.0% of range maximum
- Module scan time (notch filter dependent)
- (Assumes 2 ADC’s running in parallel, no CJC or lead resistance) 10 ms per Channel × 4 Channels = 40 ms (1K Hz filter) 127 ms per Channel × 4 Channels = 508 ms (8 Hz filter) Channels that are disabled are not scanned, shortening scan time.
- Module conversion method
- Sigma-delta
- Isolation voltage channel to channel group to group terminal block to backplane/chassis
- Opto-isolated, transformer isolated +-12.5Vdc channel to channel Tc/V/I/RTD 250 VAC continuous/1500 VAC for 60 seconds 250 VAC continuous/1500 VAC for 60 seconds
- Categoría
- Módulos de entrada/salida en China
- Subcategoría
- Plc
- Subcategoría 2
- Control system components
- ID de Anuncio
- 101736961
Descripción
Electric Field Control Analog Module
The HE670ADC840 provides eight analog channels with a resolution of 12-bits
Isolation levels are 400VDC (channel-to-channel) and 1,000VDC (channel-to-ground). The module changes the current input signals into digital values, which can be accessed through communications with the Bus Interface Unit.
These modules are protected within the standard Field Control I/O case and are compatible with a variety of I/O bases providing flexible termination options.
Technical Specifications
Power Consumption 130mA from backplane
Number of channels 8
Range 4-20mA
Channel-to-Channel Isolation 400VDC
Channel-to-Bus Isolation 1,000VDC
Input Impedance 100 ohms
Output Format Set by BIU
Resolution 12-bits
Maximum error at 25°C ± 1% Full Scale
Operating Temperature 0 to 75°C
Relative Humidity 5% to 95%, non-condensing
Input Power Required Supplied by BIU