REMOTE INTELLIGENT SENSOR - AREA MONITOR
2.6.3REACTIVE GASES. Many gases are extremely liable to attenuation and no extension of input tube should be attempted. These gases include ISOCYANATES, HYDRAZINES and ACID GASES such as HF and HCI.
2.6.4SYSTEM PERFORMANCE WITH EXTENDED SAMPLE LINES. Bacharach will not guarantee system performance and accuracy if extended sample lines are fitted, except where the company has expressly given written approval.
NOTE: Without such specific approval, the user must determine that performance is not adversely affected under the particular application conditions.
WARNING
Extended input lines should never be used when sampling low vapor pres- sure compounds such as MDI. These compounds are present in aerosol form, and sampling efficiency will be drastically reduced if the sample line is extended. Instruments intended for aerosol sampling have a dual input tube approximately 1" (25 mm) long protruding from the bottom of the instrument.
2.7.0 - 1 VOLT CONVERSION
2.7.1TOOLS & MATERIALS REQUIRED
•2.5 mm Hex Key
•Soldering Iron
•Solder
•Wire Cutter (Small)
•Buss Wire (#22 AWG, 1/2" Long)
2.7.2PROCEDURE. Remove main power from RIS System: then set ON/OFF switch SW1 to OFF. Follow the removal of the mechanical chassis from Section 4.11.2.
Remove link (0 Ohm resistor) from the 4 - 20 OUTPUT position using wire cutters to cut both ends of the link. Solder buss wire link into the
Reinstall the mechanical chassis, cables, and hoses using the first two paragraphs of Section
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SW1
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ON
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1VR1
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12VDC | - | 1 |
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INPUT | + | 2 | + |
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ANALOG |
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OUTPUT |
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NETWORK |
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COMMS | AOUT |
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INTERFACE | B |
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SR11
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SERIAL | PO |
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PRINTER | PRDY |
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RLF |
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Figure 2-1. 0 - 1 Volt Conversion
2.8SYSTEM CHECK
NOTE: This procedure should be followed every time a new cassette is installed, to insure the system is operating correctly. During the initial system check of this unit, and at least on a yearly basis there after, the sample inlet tube should be checked for proper installation.
2.8.1TAPE CASSETTE LOADING
WARNING
This involves opening the RIS door, which automatically initiates the
Open the door with the key provided. Leave the system switch on. Press the TEST Mode switch on the bottom left inside corner of the door. Open the tape gate with the lever and remove the old cas- sette, if installed. The cassette and its mounting spigots are designed to fit tightly; use a firm and direct pull to disengage the cassette. See Figure
NOTE: Make sure that the ‘O’ ring installed in the cassette molding, (and which seals purge connections), is not left behind when the cassette is removed.
Page | Instruction |