16 bit A/D Isolated Data Acquisition Module & Amplifier 0-50V RS-485 interface P

Description

Ready to go analog data
acquisition
module capable of measuring mV to 50V or 0-20mA
Ideal for monitoring Solar, Batteries, Temperature, or any analog sensor with mV or mA output. RS-485 interface allows up to 4000 ft distance to host PC. Connect up to 32 modules to one port. Simple ASCII commands and results in engineering units.
Supported by NI Labview and Labtech software
User manual:
https://www.analog.com/media/en/technical-documentation/.user-guides/6BSeriesUserManual.pdf
A chassis that can hold up to 16 modules is available separately (
FREE with 10 UNIT ORDER
)
Also available 6B11 module compatible with thermocouple inputs and
High voltage version (6B12HV) is available (2000V isolation) RS-485 Interface
The 6B12 and 6B12HV are single-channel isolated signal-conditioning modules which receive millivolt, voltage and process current signals. Unlike conventional signal conditioners, the 6B12 and 6B12HV are complete microcomputer-based data acquisition systems. A major advantage of the on-board microcontroller is its ability to be reconfigured for various sensor types and input ranges.
Synchronized Sampling
The synchronized sampling command allows data to be sampled simultaneously from all 6B11, 6B11HV, 6B12, 6B12HV modules and all 6B50 boards in a 6B Series system. Each module or board stores the data in a separate register within its microcontroller and can access the data with a separate command.
Software Configuration
The 6B12 and 6B12HV digitize millivolt and voltage ranges from ±150 mV to ±50 V as well as 0 to ±20 mA process current inputs. Software is used to configure the 6B12 and 6B12HV modules for address, input range, baud rate, data format, checksum status and integration time. All programmable parameters are stored in the nonvolatile memory of the module.
Inside the 6B12 and 6B12HV
Each analog input signal is conditioned and scaled by a programmable-gain amplifier and digitized by a 16-bit integrating converter under microprocessor control. The digitized value is passed serially across a magnetically isolated barrier (1500 V rms - Model 6B12; 2500 V rms - Model 6B12HV) and clocked in by a custom controller chip. The on-board microprocessor then converts the data into engineering units as determined by the channel parameters. In between conversions, the microprocessor auto zeros the offset and gain by monitoring the on-board temperature and compensating for reference drift. The 6B12 and 6B12HV use compensation factors to ensure the highest accuracy possible.
Inputs and Communications
Figure 1. 6B12/6B12HV Functional Block Diagram
Figure 2. 6B12 and 6B12HV Field Connection Diagram
Inputs
Communications
Millivolt: ±150 mV to ±500 mV
Voltage: ±1 V; ±50 V
Current: ±20 mA
RS-485-Interface
Available Models
Range Description
(Software Configurable)
Accuracy
1
(Typical)
Error
(Maximum)
Noise
(Peak to Peak)
±150 mV
±0.03 % FS
±0.06 % FS
±0.02 % FS
±500 mV
±0.01 % FS
±0.04 % FS
±0.008 % FS
±1 V
±0.006 % FS
±0.03 % FS
±0.007 % FS
±5 V
±0.006 % FS
±0.03 % FS
±0.006 % FS
±10 V
±0.006 % FS
±0.03 % FS
±0.005 % FS
±50 V
±0.006 % FS
±0.03 % FS
±0.004 % FS
±20 mA1
±0.006 % FS
2
±0.03 % FS
2
±0.007 % FS
1
This range requires the use of a 50 Ω current-to-voltage conversion resistor, model AC1381.
2
Does not include the error of the current-to-voltage input resistor, Model AC1381.
Specifications
6B12 and 6B12HV Specifications
(typical @ +25°C and V
s
= +5 V dc)
Description
Model 6B12 and 6B12HV
Inputs, Software Selectable
Voltage Ranges
mV
±15 mV to ±500 mV
Volt
±1 V; ±5 V; ±10 V; ±50 V
Current Range
±20 mA
Communications
Protocol
RS-485
Baud Rates, Software Selectable
300K, 600K, 1.2K, 2.4K. 9.6K, 19.2K
Accuracy
Initial @ +25°C
Refer to Model Table
Input Offset vs. Temperature
±0.3 µV/°C
Span vs. Temperature
±10 ppm/°C (±50 ppm/°C, maximum)
Input Resistance
1 MΩ
Bandwidth, -3 dB
4 Hz
Conversion Rate
9 samples /second
Synchronized Sampling Command
Yes
Conversion Time
70 ms maximum
Common-Mode Voltage (CMV)
Input-to-Output and Power
Model 6B12
1500 V rms continuous
Model 6B12HV
2500 V rms continuous
Common-Mode Rejection (CMR)
1 kΩ Source Imbalance @ 50/60 Hz
108 dB
Normal Mode Rejection (NMR)
1 kΩ Source Imbalance @ 50/60 Hz
56 dB
Input Protection
240 V rms, continuous
Input Transient Protection
ANSI/IEEE C37.90.1-1989
Power Supply
Voltage, Operating
+5 V dc ±5%
Voltage, maximum safe limit
+6.5 V dc
Current
+100 mA
Mechanical Dimensions
2.3" x 3.1" x 0.79"
(58.4 mm x 78.7 mm x 19.1 mm)
Environmental
Temperature Range
Rated Performance
-25°C to +85°C
Operating
-25°C to +85°C
Storage
-40°C to +85°C
Relative Humidity
0 to 95% @ +60°C noncondensing
We respond to inquiries from 8:30 to 6:30 PST, M-Fr
Free local pickup (San Mateo county sales tax rate of 8.75% applies)