X51N Signal Conditioners with In-Circuit Calibration and High Panel Density Equals Lower Costs and Easier Installation
Model X51N Series -- Control Room Signal Conditioning
 | RTD, T/C, mV, mA, V input transmitters, alarm trips, combo transmitter/trips. |
| On-board plug-in sub-module facilitates change of range or sensor type. |
| Convenient front panel access to span, zero, and setpoint controls. |
| In-circuit calibration and input monitoring via front panel jacks, |
| without disconnecting the input or output wiring. |
| Signal to power supply isolation standard on all modules. |
| Input to output isolation on temperature transmitters. |
| Power On indicator on all modules. |
| Single and dual setpoint alarm trip and combination transmitter/alarm trips. |
| Plug and socket selection for relay operation and high or low setpoint. |
| Sensor failure detection without shutdown on RTD modules. |
| High density mechanical design, 20 modules in a standard 19 inch (48.25 cm) rack mount. |
The Ronan X51N Series temperature and process signal conditioners, transmitters, alarm trips, and combination transmitter/trips, feature the most extensive selection of interface modules, providing high density packaging for the most economical price. The designs incorporate solidly based experience from the many thousands of installed and operating units, and offer superior performance based on today's technology and proven design techniques. The high density arrangement of the X51N Series, most suitable for system application in today's space-limited control rooms, is enhanced with the ultra high density combination of transmitter and alarm trip contained in the same module. These combination modules provide a unique solution to instrumentation requirements, where previously a transmitter and an alarm trip module occupied twice the space, thus providing an obvious economical advantage.
The X51N Series modules are supplied in standard 19 inch relay rack mount chassis or surface mount chassis for back panel installation, each providing space for up to twenty modules in any combination of transmitters, alarm trips, or transmitter/trips. A panel mount housing for any combination of up to forty modules permits installing the modules at any location inside a control panel. All modules are constructed to the "Euro Card" specifications based on DIN standards to assure plug-in compatibility with regard to mechanical and electrical features applicable to European Chassis. The circuit card and chassis connectors used are of the shrouded type to assure ease of insertion and excellent electrical connection. The thermocouple and RTD input modules feature plug-in type submodules, allowing field change for range or type of input by simple exchange of the type determining submodule. Calibration is made easy by means of front panel access jacks, which allow direct injection of calibration signals, without disconnecting the input signals, and readout of the output signals. A portable calibrator such as the Ronan Model X88 is ideally suited to simultaneously inject the input signal and monitor the output. Calibration is accomplished using readily accessible front panel controls. All modules are powered from an integral or external 24 VDC power supply. The integral power supply, occupying two module positions, is capable of supplying up to 50 watts. Refer to individual module specifications for power requirements. Rack mounted power supplies for larger systems are available. The DC or AC power connections are made at clearly marked rear panel terminals. The alarm trip modules offer either two isolated single pole, single throw, or one single pole, double throw contact per setpoint. The contacts are rated for 3 amperes at 240 VAC or 28 VDC. Selection of high/low setpoint, or relay coil status, normally energized or de-energized, is made by simply changing the mechanical plug-in jumpers.