Absolute Process Instruments API 4310 G _ DC to DC transmitter, low-level input. Fully isolated.
Features:
- Factory Set Custom I/O Ranges
- Easy-to-Install Plug-In Design
- Full 2000 V Input/Output/Power Isolation
- Input and Output LoopTracker® LEDs
- Output Test Button
- Built-In Loop Power Supplies for Input and Output
Applications:
- Convert, Boost, Rescale Process Signals
- Isolate Single-Ended (Common Ground) PLC Inputs
- Interface Signals with Panel Meters, PLCs, Recorders, Data Acquisition, DCS, and SCADA Systems
The API 4310 G are factory configured to accept a DC voltage or current input and provide an optically isolated DC voltage or current output that is linearly related to the input.
The API 4310 G utilizes an ultra-stable input amplifier for reliable operation with input signals as low as 10 mVDC.
Typical applications include signal isolation, conversion, boosting or a combination of the three. Full 3-way isolation (input, output, power) makes this module useful for ground loop elimination, common mode signal rejection or noise pickup reduction.
When a milliamp input is specified, a loop excitation power supply is included that may be wired for sinking or sourcing to allow you to use a powered or passive input device.
When a milliamp output is ordered, it provides power to the output current loop (sourcing).
Common ranges as well as custom ranges are possible.
LoopTracker
API exclusive features include two LoopTracker LEDs (green for input, red for output) that vary in intensity with changes in the process input and output signals. These provide a quick visual picture of your process loop at all times and can greatly aid in saving time during initial startup and/or troubleshooting.
Output Test
An API exclusive feature includes the Functional Test Button to provide a fixed output (independent of the input) when held depressed. The test output level is factory set via an internal potentiometer to approximately 50% of output span. The functional test button greatly aids in saving time during initial startup and/or troubleshooting.
Installation
The API 4310 G plug into an industry standard 8-Pin octal socket sold separately. Sockets API 008 and fingersafe API 008 FS allow either DIN rail or panel mounting. The plug-in design, 3-way isolation, and robust electronics allows the module to be quickly hot-swapped without removing the power or I/O signals.
Specifications Table:
| DC Input Range |
|
| Input Impedance (Voltage) | 200 kΩ minimum |
| Input Voltage Burden (Current) | 1.25 VDC maximum |
| Common Mode Rejection | 120 dB minimum |
| Input Loop Power Supply | 18 VDC nom., unregulated, 25 mADC, max. ripple, <1.5 Vp-p (May be selectively wired for sinking or sourcing mA input) |
| DC Output Range | Factory configured, specify output range
|
| Output Calibration | Multi-turn zero & span potentiometers, ±15% span adj. typ. |
| Output Loop Power Supply | 20 VDC nominal, regulated, 25 mADC, max. ripple <10 mVRMS |
| Output Test | Sets output to test level when pressed. Test level factory set to approx. 50% of span. Specify custom setting. |
| Output Ripple and Noise | Less than 10 mVRMS |
| Linearity | Better than ±0.1% of span |
| Response Time | 70 milliseconds typical |
| Ambient Temperature Range and Stability |
|
| Response Time | 300 milliseconds typical |
| Isolation |
|
| Installation Environment |
|
| Power | 115 VAC ±10%, 50/60 Hz, 2.5 W max |
