TM 10-6665-297-13&P2-7.2.2To modify CD800 and CD830 control units for automatic resetting:1.Remove diodes from control unit printed circuit boards as follows:a. For automatic resetting of warning circuitry only (retaining manual alarm circuitry resetting):Clip leads of diode CR3 and remove diode.b. For automatic resetting of alarm circuitry only (retaining manual warning circuitry resetting):Clip leads of diode CR2 and remove diode.c. For automatic resetting of both warning and alarm circuitry: Clip leads of diodes CR2 and CR3and remove diodes.2.If both warning and alarm functions are modified for automatic resetting:CD830 only: Grasp RESET lens with fingers and withdraw from socket. Replace with unlabeled redlens 0104-6286. (Unlabeled red lens is standard for CD800W control unit front panels.) If manualresetting is retained foreither warning or alarm circuitry, do not replace the CID830 RESET lens.2-8INSTALLATIONOFEXTERNALACCESSORYDEVICESThe CD800/830 module provides terminals for accessory devices such as chart recorders, remotealarms, relays, and switches. Instructions for installation of these accessories are contained in thefollowing paragraphs.2-8.1INSTALLATIONOFRECORDER. Connect recorder as follows: Individual control modules arecompatible with 0-100 mV recorders having an input impedance greater than 100 ohms.NOTE: A multipoint recorder used to scan outputs from several modules must have a non-shortingcommutator (selector switch) to avoid momentary connecting of two module recorder signaloutputs together.1. Connect recorder to REC + and - terminals on module terminal panel (CD800P: to terminals TB-2, 4(-)and 5 (+).2. Press and hold down TEST pushbutton. If necessary, adjust RANGE control R22 for full-scale meterdeflection.3. Observe recorder response at full-scale meter reading at control module.23-96173/16/792-42
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