Assessments - 2, GPA: 4.5
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Facilidade de uso
15 16.1 Power Up During Transport. 15 16.2 Power Up after fuse has been removed 15 16.3 Pre set passwords on delivery 15 16.4 Settings on despatch 16 16.5 Citizen printer 16 16.6 Spares and consummables 16 3.0 GENERAL: This manual is addressed to those responsible for and using this instrument and applies to software version V1.37BB 3.1 SAFETY: Please read this paragraph carefully before operating the instrument. Do not open any part of the instrument, there are no user-serviceable parts inside. Protect from moisture and water. Use in dry conditions. Use only to leak test on voltage-free and grounded switchgear. Touching a finger gently to the screen surface operates the touch screen. DO NOT USE TOOLS TO TOUCH THE SCREEN. Page 2 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 manual be read before use. This manual and the instrument have been designed to be understood by users whose first language is not English. Please advise us of any changes, which will make this easier. Two modes of operation are available, volume loss/time cc/sec (leak-detection) and (ppm) concentration of SF6 in air. All controls and displays required for detection are found in the hand unit. Accurate and clear measurement is achieved from the console touch screen display. Measurements can be stored in the instrument and later transferred to a printer or computer. A battery-powered printer is available. Results may also be downloaded to a computer via the RS2323 link. The only item, which needs to be replaced in normal use, is the ‘Smart Sensor’ probe. Smart Sensors contain a microchip programmed with specific sensor information. At Switch ON, the console automatically reads sensor information. Smart Sensors are not radioactive and contain nothing harmful. Life is approximately 200hours. Sensors are changed by switching OFF the instrument and plugging in a replacement. Three (3) are supplied and available as exchange items. The operation of the instrument and sensor require permanent and precise control by software. Any faults give immediate error messages, which are then displayed on the touch screen. This in conjunction with the sample flow monitoring function, ensures the instrument reliably determines and displays all fault conditions. All vital user parameters are password protected against unauthorised entry. Access to the touch-screen is required for set-up only. If used outside or in difficult conditions the transparent cover over touch-screen can be left locked. 4.1 CONSOLE CONTROLS: 1 Touch-screen for numeric leak rate display and parameter entry. Two red on/off buttons located at the front and right side panel. Both are lit when the instrument is on. White light combines mains supply and battery charge control. This flashes while on charge and is permanently on when the battery is full. A Key allows the transparent front cover to be locked during use. Page 3 5.0 Handgun Displays and Controls: %AlarmOFF9080706050403020100 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 clearer and easier for an operator. 5.2 Handgun Six LEDs indicate status. COLOUR No DESCRIPTION Green 1 READY TO MEASURE. Normal operation. If ON, you may confidently measure. This is OFF whenever the instrument is in standby or programming mode, error condition, or the actual reading is above 20% of the alarm level. Red 2 NOT READY. This light is on whenever the instrument is in the programming mode, or an error condition exists. It flashes during standby mode. Green 3 SPECIAL. Desensitise functions, flashes when one of them is active. Yellow 4 SIGNAL. Switches on whenever a reading above 20% alarm level was taken. Reset by STORE or CLEAR key. Red 5 ALARM. This light is on as long as a reading equal to or above the alarm level is taken. Yellow 6 MESSAGE. Prompts the operator to read a message that is present on the LCD screen. Page 4 6.0 HANDGUN BUTTONS: SQUARE: 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 detectio...