ion science SF6 manuale d’uso

INSTRUCTION M ANUAL GAS-CHECK SF 6 AN INSTRUMENT FOR THE LOCATION AND MEASUREMENT OF LEAKS IN SF 6 FILLED ELECTRICAL S W ITCHGEAR. User Manual iss 01 Software-Version V1.39BB[...]

Page 1 Contents: Software version V1.39BB Subject Description Page 3.0 Gen eral 2 3.1 Safety 2 4.0 System Properties/introduction 3 4.1 Console controls 3 5.0 Handgun displays and controls 4 5.1 Handgun analogue display 4 5.2 Handgun display LED’s 4 6.0 Handgun buttons 5 6.1 Top Caps 5 6.2 Filters 5 7.0 Getting started 6 7.1 Measuring operation 6[...]

Page 2 12.0 User setup 12 12.1 Peak hold (gauge) 12 12.2 Peakhold (screen) 12 12.3 Display units 12 13.0 Desen Factor 1 13 13.1 Desen Factor 2 13 13.2 Standby mode 13 14.0 Standby delay 13 14.1 RS232 Protocol 13 14.2 Sound type 14 14.3 Sound begins at 14 14.4 Live tick 14 14.5 Filter threashold 14 14.6 Filter count 14 15.0 Tech data readout 14 15.1[...]

Page 3 4.0 SYSTEM PROPERTIES: Introduction: GAS-CHECK SF6 is a portable, mains-independent instrument for leak detection and leak measurement of SF6 gas. Although designed for SF6, other gases with a high affinity for electrons, such as refrigerant R12 may also be detected. Although designed for operation without training, we recommend that this ma[...]

Page 4 5.0 Handgun Displays and Con trols: % A l a r m O F F 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 0 The following controls are found on the hand unit: 5.1 Analogue gauge: displays the response to leaks in %, rather than an absolute value (displayed on the touch-screen), and shows the leak rate in the form of a percentage of the alarm value. This is [...]

Page 5 6.0 HANDGUN BUTTONS: S QUARE : This has two functions: MEASURE MODE and SEARCH (bar graph) MODE. On power-up the SEARCH mode is automatically selected, the touch screen displays a bar graph. This is ideal for fast and ultra low-level leak detection (~10 E-8cc/sec). In this mode high accuracy is not possible, just leak detection and location.[...]

Page 6 7.0 GETTING STARTED: This assumes you have just received the instrument and it is NOT powered up. 1 Plug in the sensor and connect the ha ndgun to the console. Align the red marks and press home. 2 Connect to a mains electrical supply AC 85-265V. An opening screen is now displayed which identifies the major components of the instrument. You [...]

Page 7 7.3 LOW FLOW ERROR: The flow through the sensor is controlled by the vacuum pump. The level of vacuum required to maintain the required flow can be seen in the lower LH screen. Should the sample intake of the sensor be partially or totally blocked, the instrument will first try to compensate by increasing the vacuum. If unsuccessful, an erro[...]

Page 8 8.1 USER SETUP : This paragraph describes the parameters that determine the behaviour of the instrument. The first step is always. Activating the Menu System. In normal operation, the instrument can be taken to programming mode by simply touching the touch-screen. From the main menus, items can be selected. Touching the screen will display t[...]

Page 9 9.2 D ata Printout If readings were stored using the STORE key on the hand unit, these can be printed or transferred to a computer. After printout, the data memory is cleared. See section 16.5 page 15 for ISL supplied printer settings and information. 9.3 C lear Data Memory Use this function prior to beginning a new set of measurements to re[...]

Page 10 10.2 F orce Operator ID by key code If selected, a password (key code number) entry screen is opened after power up. The operator is now required to enter his personal key code. If nothing or an invalid key code is entered, data printout is not possible. A corresponding message must be confirmed before operation is allowed. Key codes can be[...]

Page 11 11.0 C alibration The GAS CHECK SF6 is unique in that completely separate values are stored for each of the display modes. This means that if you want to measure ppm or gm/yr these values must be calibrated before use. Calibration follows the same easy routine as with cc/sec calibration using the Portable Reference Leak . Regular calibratio[...]

Page 12 12.0 U ser set-up This gives access to a number of parameters which determine the behaviour of the instrument. They are described as follows and all are selected using the up/down arrows and changed using the -/+ buttons. 12.1 Peakhold (gauge). This due to the short recovery time after detecting a leak, this function is helpful. The peak va[...]

Page 13 13.0 Desens Factor 1. Factory pre-set at x5. On a high or ‘gross’ leak, press the GREEN handgun pad once. This desensitises by x5; the Green (special) lamp will flash. 13.1 Desens Factor 2. Factory pre-set at x5. Pressing the GREEN handgun pad again invokes a further desensitise, the lamp will flash faster. To change the desens factor u[...]

Page 14 14.2 Sound type Using the +/- buttons select sound output you prefer. HARMONIC or TRADDITIONAL. If more than one instrument is used in a confined space, it may be useful to set them to different sound types. 14.3 Sound begins at This allows you to set the display value at which the sound begins. For leak detection, we suggest settings of 20[...]

Page 15 15.1 Probe/Sensor Li fetime/filter: Sensor life is presently estimated to be 200 hours of continuous use in a normal industrial atmosphere. Sensor life is affected only by contamination in the air sample being drawn through probe. Therefore it is dependent on ambient conditions. Filter: This is positioned between the top-cap and the sinter [...]

Page 16 16.4 Settings on despatch as found in U ser Setup Instrument serial Number P1 Date Peak Hold (gauge) 0.5 s Peak Hold (screen) AUX DISP Display Units E-6 ml/s Desen. Factor 1 5 x Desen Factor 2 10 x Standby Mode Light + sensor Standby Delay 15 min RS232 Protocol DTR/DSR Sound Type HARMONIC Sound begins at 20% Alarm Live tick OFF Filter Thres[...]