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梅思安(中国)安全设备有限公司 MSA(CHINA) SAFETY EQUIPMENT CO., LTD DF-8500 C 测量范围为0~100%LEL的点型可燃气体探测器 Point type combustible gas detector with measuring range of 0~100%LEL 用户手册 User Manual P/N:10203353 Rev.1 编制日期Date:2019/03/21...
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL Contents Safety Regulations Correct Use Liability Informati Safety and Precautionary Measures to be Adopted MSA Permanent Instrument Warranty Description Identifying the Unit Overview Installation Mechanical Installation Electrical Installation...
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 1.3 Safety and Precautionary Measures to be Adopted Attention ! The following safety instructions must be observed implicitly. Only in this way can the safety and health of the individual operators, and the correct functioning of the instrument, be guaranteed.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 1.4 MSA Permanent Instrument Warranty Please refer to MSA quality assurance statement. MSA will bear the relevant responsibilities for this product during the warranty period provided the product is properly installed, debugged, and used in accordance with MSA’...
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 2.2 Overview The device is factory-calibrated and delivered ready for installation. First calibration is required after installation. After the transmitter is put into normal operation, it is recommended by MSA to perform calibration once every three months.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 3 Installation The device should be installed where gas leaks are expected. The installation position depends on the gas density, either in the upper area of the room under the ceiling for gases lighter than air or closer to the ground for gases heavier than air.
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 3.1.2 DF-8500 C Installation Diagram DF-8500 Nut M6 Washer 6 Mounting plate Washer 6 Bolt M6×12 Clamp 2 〃 Pipe 2 〃 DF-8500 C Mounting on Vertical pipe...
公共端 公共端 1-2 1-2 有源 2-3 2-3 无 源 常闭 常开 Material in the dashed line rectangle is optional Remote Sensor 24V+ Sensor 24V- Connector Controller 4~20mA Figure 5-1 DF-8500 C internal wiring (Low alarm relay configured as active mode)
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Remote Sensor 24V+ Sensor 24V- Connector Controller 4~20mA Figure 5-2 DF-8500 C internal wiring (Low alarm relay configured as passive mode) Terminal name Application 24V + Connect to DC 24V+ 24V - Connect to DC 24V- 4-20MA (4~20) mA output of device...
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL Terminal No. Terminal Name DC 24V+ DC 24V- (4~20)mA signal Figure 6 DF-8500 C Power Connection Terminals Terminal No. Terminal Name Not energized,normally open Common terminal Not energized,normally closed...
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 4 Operation The device is factory-calibrated and delivered ready for installation. First calibration is required after installation. 4.1 Startup The device conducts self-checking during it starts up and sets the operating current as output signal (default: 4.0mA), then displays below information:...
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 4.2 Menu Sequence 4.2.1 Function Description of Remote Controller No. Key name Function Enter one menu item/Save Exit/Abandon modifications Scroll down the menu IR-Control items/Decrease value Scroll up the menu...
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL [M-00] -- Alarm(relay)reset This menu item is used to reset the LOC or alarm of the combustible sensor. This menu item will be displayed only when the LOC or the relay is set as locked.
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL (8) Return to measuring mode after finishing count down. Note: Please make sure the transmitter has been energized for at least one hour before attempting a gain calibration.
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL Submenu Meaning Default Adjustable Range Remarks Parameter TEST GAS= Calibration gas 5~99 concentration setting (4~20) mA CURRENT 90 ~ 150 offset tuning OFFSET= Low alarm ALARM_L= 5 ~ (high alarm-1)
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL [M-06] ——LED testing LED testing. All segments of the nixie tube display and the LED flickers. (1) Press “+” to select menu item M-06. (2) Press “ON” , and then the screen flickers to display “OFF” .
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL [M-10] -- Relay parameter setting This menu is used to set the relay operation of the transmitter. (1) Press “+” to select the menu item M-10. (2) Press “ON” and the screen will display the menu for entering password.
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL [M-11] -- Relay Testing This menu is used to test the relay operation of the transmitter, so that it is convenient to conduct field linkage testing. (1) Press “+” to select the menu item M-11.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL (4) Enter the password (see Section 4.4). (5) If the password is correct, you will enter the next level of submenu M-14. At this time, the concentration as shown in M-03 will flash in the display, which indicates that manual gain calibration is ready.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 4.4 Password A 4 digits password is used to lock the menus that can be modified only by certificated and authorized personnel. The default password is 0000. After entering the password menu, set the number from left to right, and the flicker bit means that the bit is being edited.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 6 Technical Data 6.1 Major technical parameters of the transmitter Detected gas Methane Enclosure Aluminium enclosure Explosion-proof Protection level: IP 67(not including the sensor) Dimensions, mm Approximately 225×125×106 (height ×...
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 6.2 Cable Lengths and Cross-sections (Meter) With audible and visual alarm w/o audible and visual alarm (AF5000, active mode) Power mode 1.0mm² 1.5mm² 2.5mm² 1.0mm² 1.5mm² 2.5mm² cable...
Instrument is not configured 0mA Green Negative drift 3.2mA If the DF-8500 C gas detector is exposed to a high gas concentration environment (over 100%LEL), the relay of the device will enter the locking state, and it will display "LOC and 110" alternately.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 9.2 Error Code Error Meaning Possible cause Countermeasure Code Device has not been The circuit board is new Configure the gas type BOOT configured Replace the flash self-check fault...
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 9.3 Timeout The automatic calibration has a 4-minute timeout; that is, the error code will appear if the automatic calibration cannot be completed within 4 minutes. When no keys are pressed for over 10 minutes, the menu will automatically return to the concentration measurement mode from any other screen.
DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL 10 Special conditions for the safe use according to SIL applications The DF-8500 Gas Monitor has been subjected to rigorous reliability and functional safety assessments, which have culminated in the gas monitor being certified to IEC 61508 by CSA.
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL Possible structures and acquirable SILs The following table shows which structure has to be selected to fulfill the requirements of a specific SIL. LDM = Low Demand Mode...
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DF-8500 C Point type combustible gas detector with measuring range of 0~100%LEL Checking the relay output function is accomplished by proof test every 1 year. And contact welding shall be check by the proof test The relay contacts must be protected with a fuse rated 0.6 of the nominal specified...
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