Delete comment from: Ken Shirriff's blog
"Electronic digital clocks (referred to as БЧК BChK) are intended for:
• issuing time information about the current time with a resolution of 1 second;
• crew alert about the occurrence of a given point in time;
• timing of individual operations;
On the front panel are located:
- toggle switch “ВКЛ VKL” - turning on the power of the watch,
- “Работа-коррекция Work-correction” toggle-switch - switching on the working mode of operation or the correction mode of the clock,
- “ЧТВ-ОП ChTV-OP” toggle switch - connection to the upper digital indicators
current time clock (ЧТВ ChTV) or siren (ОП OP);
- button “ПУСК. ОСТАНОВ. СБРОС - START. STOP. RESET ”- manual control
stopwatch
- digital indicators “ЧАС. МИН. СЕК - HOUR. MIN SEC ”- indication of the current time or time the alert was set,
- digital indicators “МИН. СЕК MIN. SEC ”- time indication second measure,
- The “ВВОД ENTER” button is used to enter temporary notification information.
The clock is turned on by moving the toggle switch “ВКЛ ON” to the upper position when the remote control power is on.
The БЧК BChK have an internal autonomous generator and an input for external highly stable pulses.
The stopwatch can work in two modes: manual and automatic.
Automatic control of the stopwatch is used to chronometrify the operating time of the propulsion system and has priority over manual.
Upon the formation of the “Включение СКД SKD Enable” command, a stop, reset and start of the stopwatch occurs.
By the formation of the command “Отключение СКД SKD Shutdown”, in the presence of the sign “Маневр Maneuver”, the stopwatch"
Jan 18, 2020, 8:58:58 AM