TM 10-6665-297-13&P4.Turn screw adjustment of RECORDER potentiometer R17 to set recorder response at desired 100%point of recorder graph.2-8. 2INSTALLATIONOFREMOTERESETSWITCH. To install remote reset switch, follow Modificationfor Common Point Resetting, paragraph 2-7.1.2-8.3INSTALLATIONOFREMOTEALARMANDPROCESSCONTROLDEVICES. Buzzers, lights,horns, process control mechanisms and other external devices rated up to 3 amperes maximum at30 VDC/120 VAC for resistive loads (derated to 50 percent for inductive loads) may be connecteddirectly to WARN, ALARM, or FAIL terminals on the control module terminal panel. Devicesrequiring heavier load current must be isolated from control module circuitry by means of externalrelays to prevent destruction of printed circuit traces.Tables 2-3 and 2-4 identify the various combinations of relay switching terminals available foroperating remote devices.2-8.4"HORNSILENCE"OR"ACKNOWLEDGE"OPTION. In some cases where signal horns or sirensare connected to a system, it may be undesirable to have such signals continue to sound once theyhave alerted personnel to the presence of a hazardous situation. In such cases, an accessory isavailable from the factoryto permit the signal device to be acknowledged and the sound silencedwhile corrective action is implemented, even though the condition persists and the "Warn" and"Alarm" relays remain actuated. At the same time, it is desirable to have the signal device remainarmed to report a change in status, such as another "Warn" or "Alarm" condition at a new location,which may indicate a worsening condition. This option may be readily provided at the factory whenordered in multi-point installations, and is available in kit form for addition to existing systems. (Foradd-on installation, it is recommended that specific requirements be discussed with a Bacharachrepresentative.)This arrangement consists of a number of "Trigger Modules" appropriate to the number of detectionchannels with which it is to work (each trigger module accepting six channels of "Alarm" or "Warn"output), a common output auxiliary relay, a common "Silence" or "Acknowledge" pushbutton switch,and a horn or other signal device. When the horn sounds in response to a "Warn" or "Alarm" signal,it may be manually silenced by pressing the "Acknowledge" pushbutton; however, a new "Warn" or"Alarm" condition at another location will cause the horn to sound again, and to continue to sounduntil acknowledged again. This process may be repeated until all locations have reported an alarmand been acknowledged, at which point the circuit is saturated, having done all it can. However, thiscircuit will be automatically re-armed whenever a condition causing an alarm has cleared and outputcircuits reset (either automatically or manually). This circuit is shown in Figure 2-29.Part numbers are: Trigger module, #0051-7106; Power module, #0051-7101; Relay assembly,#0051-7102.23-961710/22/802-43
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