Orbisphere 510/511/512 Analyzers - Specifications 121 of 138Operator Manual ORBISPHERE13 Specifications13.1 Hardware DescriptionThe instrument hardware is made of one main board, up to 3 measurement boards - onefor each measurement channel (= one per sensor), a power supply and a battery packas options.The main board includes the controls for power, display, the touch screen, the barometricsensor, the alarms, and communication ports. The measurement board(s) performsmeasurements and executes commands from the main board. It holds the "Analogoutputs" and "Relays" that send information to external systems, and "Digital Inputs" thatreceive information from external systems such as a “Hold” input.A hardware watchdog is activated at program start up, to check that the system is notfrozen (i.e. infinite loop, system crash, etc.). If the watchdog is not refreshed by thesoftware every minute, the measurement display, the relays and the analog outputs arefrozen for up to 2 minutes. Then the reset shuts down the instrument for 10 seconds andthe start-up procedure is performed. At the same time all the hardware (sensor,measurement board) are reset.13.2 Model Identification SystemThe analyzer identification number and the instrument serial number are located on thelabel on the back panel, and can be found on order confirmation and invoice papers.The different models available are described in the following two matrices. Depending onthe channel configuration, the first three digits of the model number will be either 510,511 or 512 as illustrated below.510 Model Number Matrix5 1 0 A A A Oxygen ECB B B Hydrogen ECC C C Ozone ECD D D Carbon Dioxide TC (Max. 2 channels)Channel 1Channel 2Channel 3W WallP PanelT Portable1 100-240 VAC (For W, P, and T)2 10-30 VDC (For W and P)3 100-240 VAC & Battery (For T only)C 0/4-20 mAV 0-5 V0 RS-4851 PROFIBUS-DP / RS-485P External pressure0 None0 StandardJ Japanese languageK Korean languageC Chinese language5 1 0 / / 0 0