TM 10-6665-297-13&P1-3.3.3 Adjusters(continued)6.ALARMSignalTriggerPointAdjuster :Potentiometer with adjustment screw; labeled ALARM onprinted circuit board (all models, Figures 1-19, 1-22). This adjuster is turned to set a referencevoltage in a circuit that triggers the alarm signal output circuitry when the gas signal rises to thealarm reference voltage level.7.RecordingSignalLevelAdjuster : Potentiometer with adjustment screw; labeled RECORD onCD800/830 circuit board (Figure 1-19), and REC on CD802/832 circuit board (Figure 1-22). Thisadjuster is turned to set the recorder signal output to drive an optional external recorder to recordvalues consistent with the percent L. E. L. meter readings. Like the percent L. E. L. meter, therecorder output will display either the channel with the higher output or the channel on which thechannel selector switch is set.8.MeterZeroMechanicalAdjuster: Screw adjuster under meter, all models, turned to set meterpointer to zero with instrument power off. This mechanical movement adjuster is not to be used asa substitute or compensation for electrical adjustments.1-4EXTERNALACCESSORYDEVICESThe following external accessory devices are manufactured or selected for use with the CD800/830 orCD802/832 basic system:Audible Buzzer356-183115 VAC Explosion-proof Alarm Horn356-215115 VAC Weatherproof Alarm Horn 352-2545 AMP, 120V, DPDT Standard Relay361-2515 AMP, 120V, DPDT Hermetically Sealed Relay361-252In addition to the above accessories available from the Bacharach Instrument Company, a wide varietyof external devices such as fans, sprinklers, door-closers and process control mechanisms may becontrolled by the basic system. Such devices may be connected directly to the control unit whereresistive load current does not exceed 3 amperes at 115 VAC or 30 VDC. External devices with highercurrent ratings may be operated through an auxiliary power relay wired to the controlling unit.23-96177/1/761-35
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