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Summary of Contents for ion science GAS-CHECK SF6
- Page 1 INSTRUCTION MANUAL GAS-CHECK SF AN INSTRUMENT FOR THE LOCATION AND MEASUREMENT OF LEAKS IN SF FILLED ELECTRICAL SWITCHGEAR. User Manual iss 01 Software-Version V1.39BB...
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Page 2: Table Of Contents
Contents: Software version V1.39BB Subject Description General Safety System Properties/introduction Console controls Handgun displays and controls Handgun analogue display Handgun display LED’s Handgun buttons Top Caps Filters Getting started Measuring operation Possible fault conditions during operation Low flow error Flare stall Low battery voltage Switching OFF Switching OFF in case of fault... -
Page 3: General
12.0 User setup 12.1 Peak hold (gauge) 12.2 Peakhold (screen) 12.3 Display units 13.0 Desen Factor 1 13.1 Desen Factor 2 13.2 Standby mode 14.0 Standby delay 14.1 RS232 Protocol 14.2 Sound type 14.3 Sound begins at 14.4 Live tick 14.5 Filter threashold 14.6... -
Page 4: System Properties/Introduction
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. -
Page 5: Handgun Displays And Controls
Handgun Displays and Controls: The following controls are found on the hand unit: 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. -
Page 6: Handgun Buttons
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 detection and location. -
Page 7: Getting Started
The following fault conditions may occur: Pressing the ZERO button before and after critical leak testing will zero the instrument to ambient conditions and compensate for background levels of SF6 in the air. this will only happen while:... -
Page 8: Low Flow Error
FLARE STALL: This relates to sensor condition. Two reasons are possible for this. Very high concentration of SF6 many times above the measuring range. High vacuum in the probe caused by a partially blocked or aged sensor. The instrument will attempt to compensate for these until a level is reached where the detector will stall. -
Page 9: User Setup
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. -
Page 10: Data Printout
Data 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. Clear Data Memory Use this function prior to beginning a new set of measurements to remove invalid data from memory. -
Page 11: Force Operator Id By Key Code
10.2 Force 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. -
Page 12: Calibration
11.0 Calibration 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. -
Page 13: Peak Hold (Gauge)
Therefore all information is approximate. For precise ppm measurement it is recommended that calibration is made to a 10ppm SF6 in air source. For more information please contact ISL. Desens Factors. Allow large leaks or large concentrations to be displayed. -
Page 14: Desen Factor 1
13.0 Desens Factor 1. GREEN handgun pad once. This desensitises by x5; the Green (special) lamp will flash. 13.1 Desens Factor 2. again invokes a further desensitise, the lamp will flash faster. To change the desens factor use the +/- buttons. 13.2 Standby mode This useful feature allows you to programme a standby (sleep) time from when the... -
Page 15: Sound Type
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. -
Page 16: Probe/Sensor/Filter Life
15.1 Probe/Sensor Lifetime/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 leading into the detector vacuum chamber. -
Page 17: Settings On Despatch
16.4 Settings on despatch as found in User Setup Instrument serial Number P1 Peak Hold (gauge) Peak Hold (screen) Display Units Desen. Factor 1 Desen Factor 2 Standby Mode Standby Delay RS232 Protocol Sound Type Sound begins at Live tick Filter Threshold Filter Count 16.5...
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