5B32

`Isolated Current Input.
`Amplifies, Protects, Filters, and Isolates Analog Input.
`Measure process-current input signal of 4-20 mA or 0-20 mA by reading the voltage across an external precision 20 resistor (supplied).
`Generates an output of 0 to +5V.
`Extra Current Conversion resistors are available.
`Module circuitry can withstand 240v rms at the input screwterminals.
`All 5B32 series modules are mix-and-match and Hot
`Swappable.

The 5B32 is a single-channel signal conditioning module that amplifies, protects, filters and isolates its analog input. The module measures a process current input signal of 4-20 mA or 0-20 mA by reading the voltage across an external precision 20W resistor (supplied) and generating an output of 0 to +5 V.Extra current conversion resistor of 5B32 are available as accessories (See Model AC1362 in the Accessories section).

Note that the 5B32 module circuitry can withstand 240 V rms at the input screw-terminals, thereby shielding computer-side circuitry from field-side overvoltage conditions. In addition, all 5B32 Series modules are mix-and-match and hot swappable, so can be inserted or removed from any socket in the same backplane without powering down the system.

A chopper-stabilized input amplifier of 5B32 provides low drift and stable gain. At the amplifier input, a stable, laser-trimmed zeroscale input offset is subtracted from the input signal to set the ero-scale value for the 4-20 mA range. For user convenience, the zero of 5B32 can be optionally factory-set to meet custom needs,This allows suppression of a zero-scale input value many times larger than the total span for precise expanded-scale measurements.

Internal multi-pole lowpass filtering of 5B32 with a four-Hz cutoff (-3dB) enhances normal-mode (noise on signal) and commonmode (noise on signal return) rejection at 50/60 Hz, enabling accurate measurement of small signals in high electrical noise.

A series output switch of 5B32 eliminates the need for external multiplexing in many applications. The switch is turned on by an active-low enable input. If the switch of 5B32 is to be on at all times,the enable-input should be grounded to power common as it is on the 5B01 and 5B08 backplanes..