The signal conditioner features a smart setup with front panel buttons and LED indicators. It can be saved and reloaded via an RS-485 port.
The signal conditioner features a smart setup with front panel buttons and LED indicators. It can be saved and reloaded via an RS-485 port.
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The RKI S1A DIN Rail Mounting Smart LVDT Signal Conditioner ends the difficulties that accompany AC-LVDT setup with built-in null indicators and front panel push-buttons. It is engineered to work with the widest range of AC-LVDTs and inductive half-bridge LVRTs for your convenience. It offers a choice of 4 excitation frequencies and 8 analog outputs.
Features
| Operating Power | 15 to 30 V DC (24 V nominal), 60 mA max. at 24 V DC; 15 V DC and -15 V DC needed for ±10 V DC bipolar output |
| Excitation Voltage | 3 Vrms (nominal) push-pull drive (factory default); 4.5 Vrms (nominal) push-pull drive (via jumper change); 1.5 Vrms (nom) single ended drive (for low impedance primary) |
| Excitation Frequencies | 1 kHz, 3 kHz, 5 kHz, 10 kHz (nominal) |
| Auto-Master Syncing | Master output couples up to 15 slave units; if master fails, new master is automatically generated for fail-safe excitation |
| LVDT AC Output Range | 50 mVrms to 5,000 mVrms at LVDT i´s full scale position |
| Analog DC Output | 0 to 5 V, 1 to 5 V, 0.5 to 4.5 V, 0.5 to 9.5 V, 0 to 10 V, -10 to 10 V, 0 to 20 mA sourcing, 4 to 20 mA sourcing |
| Loop Resistance | 850 Ω max. with 24 V DC supply |
| Output Non-Linearity | ± 0.025% of full span output (FSO) |
| Noise and Ripple | ≤ 2.5 mVrms (voltage output); ≤ 5 µArms (current loop output) |
| Fault Detection | Open LVDT winding, cable disconnected, loss of excitation |
| Failure Indication | Flashing LEDs; analog output out of range; open-collector switch |
| Null Detection | Front panel LEDs |
| Null Output Signal | Up to ±3 V DC |
| Temperature Coefficient | ± 0.002% of FSO/°C (combined zero and span shift) |
| Zero Set | Front panel push-button or RS-485 command |
| Full Scale Set | Front panel push-button or RS-485 command |
| Digital Interface | RS-485 2-wire multi-drop network, 16 addresses |
| Additional Option | USB to RS-485 cable at USD=60 |
| Operating Power | 15 to 30 V DC (24 V nominal), 60 mA max. at 24 V DC; 15 V DC and -15 V DC needed for ±10 V DC bipolar output |
| Excitation Voltage | 3 Vrms (nominal) push-pull drive (factory default); 4.5 Vrms (nominal) push-pull drive (via jumper change); 1.5 Vrms (nom) single ended drive (for low impedance primary) |
| Excitation Frequencies | 1 kHz, 3 kHz, 5 kHz, 10 kHz (nominal) |
| Auto-Master Syncing | Master output couples up to 15 slave units; if master fails, new master is automatically generated for fail-safe excitation |
| LVDT AC Output Range | 50 mVrms to 5,000 mVrms at LVDT i´s full scale position |
| Analog DC Output | 0 to 5 V, 1 to 5 V, 0.5 to 4.5 V, 0.5 to 9.5 V, 0 to 10 V, -10 to 10 V, 0 to 20 mA sourcing, 4 to 20 mA sourcing |
| Loop Resistance | 850 Ω max. with 24 V DC supply |
| Output Non-Linearity | ± 0.025% of full span output (FSO) |
| Noise and Ripple | ≤ 2.5 mVrms (voltage output); ≤ 5 µArms (current loop output) |
| Fault Detection | Open LVDT winding, cable disconnected, loss of excitation |
| Failure Indication | Flashing LEDs; analog output out of range; open-collector switch |
| Null Detection | Front panel LEDs |
| Null Output Signal | Up to ±3 V DC |
| Temperature Coefficient | ± 0.002% of FSO/°C (combined zero and span shift) |
| Zero Set | Front panel push-button or RS-485 command |
| Full Scale Set | Front panel push-button or RS-485 command |
| Digital Interface | RS-485 2-wire multi-drop network, 16 addresses |
| Additional Option | USB to RS-485 cable at USD=60 |
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