322B ATC | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 2
Technical content
Motor-Driven Cycle Progress Timer ELECTROMECHANICAL TIMER 322B Series MODEL Choice of ON-Delay or OFF-Delay operation (not field-convertible) RANGES 11 standard ranges, from 5 SEC to 5 HRS at 60Hz (6 SEC to 6 HRS at 50 Hz) REPEAT – 2% of dial range. ACCURACY RESET TIME 150 ms. MIN. SETTING 5% of dial range. LIFE MECHANICAL: 2,500,000 cycles (average) EXPECTANCY CONTACTS: 2,500,000 operations under resistive or inductive load of 1A TIMING SINGLE CYCLE: interval, delay or pulse. MODES LOAD INSTANTANEOUS: one, SPDT, precision type. SWITCHES DELAYED: two, SPDT, precision type. CONTACT RATINGS (non-inductive):
10 A at 120 VAC
5 A at 240V A C
TERMINALS 11-point terminal block on side of housing; all terminals accept .250" push-on connectors. Terminals 1, 2, 4, 9 and 11 are split connectors for use with either one .250" or two .110" push-on connectors. POWER 120, 50 or 60 Hz. (±10%, - 15%) REQUIREMENTS Running Current 121 mA (14.5 VA) at 120V Inrush Current 157 mA (18.9 VA) at 120V TEMPERATURE 32° to 120°F (0° to 50°C) RATING WEIGHT NET: 1 lb. 8 oz SHIPPING: 2 lbs. SPECIFICATIONS NOTE: Some timing ranges are still available at 240VAC. Check with ATC. OPERATION WIRING A Dial-Adjustable TDR with cycle progress indication, the ATC 322 can also be used as a low-cost automatic reset timer for a wide range of interval, delay and pulse timing functions, in either ON-delay or OFF-delay operation. COST EFFECTIVE VERSATILE TIMING FUNCTIONS: The 322 provides the versatile timing functions and features of much more expensive automatic reset timers. INSTANTANEOUS AND DELAYED LOAD SWITCHES: Because the standard 322 includes an instantaneous switch as well as two delayed switches, it can be used in the On-Delay mode for interval and/or delayed control, with either a momentary or sustained start signal. All three switches are mounted on a sliding deck which facilitates replacement and maintenance. SURFACE OR FLUSH MOUNT: The 322 is provided with hardware for surface mounting or, if desired, flush mounting through a single 15/16" OD cutout in a 1/8" panel. CYCLE PROGRESS INDICATION: A pointer in the dial knob rotates during the cycle, continuously showing the time remaining until time-out. The 322 is a synchronous motor-driven timer with an electrically- operated clutch equipped either for On-Delay or Off-Delay operation. ON-DELAY: When power is applied (start signal sustained on), the clutch engages, the motor begins to drive a cam toward its zero position, and the instantaneous switch transfers from one set of con - tacts to the other. At the end of the timed period, the cam trips one of the delayed switches, but the motor continues to run. A brief time later (about 2-1/2% to 5% of full scale), the cam trips the second delayed switch, stopping the motor but leaving the clutch engaged. The 322 resets when power is removed from the clutch. OFF-DELAY: Timing begins when power is removed (start signal off) from the spring-loaded, normally-engaged clutch. The timer resets when power is restored to the clutch, thus disengaging it and transfer- ring the instantaneous switch from one set of contacts to the other. Action of the delayed contacts is the same as with the On-Delay timer. A power outage stops the motor but does not reset the Off-Delay 322; the timer completes the interrupted cycle when power is restored. E24305 Automatic Timing & Controls 800.727.5646 atcdiversified.com
ELECTROMECHANICAL TIMER 322B Series RANGE - 60HZ- 120 VAC
5 SEC 114
10 SEC 003
20 SEC 005
40 SEC 115
60 SEC 007
150 SEC 009
5 MIN 012
10 MIN 014
40 MIN 056
60 MIN 017
5 HR 113
6 SEC 101
12 SEC 116
24 SEC 117
48 SEC 118
72 SEC 073
180 SEC 119
6 MIN 029
12 MIN 047
48 MIN 058
72 MIN 061
6 HR 030
DIMENSIONS (INCHES/MILLIMETERS) ON DELAY Timing Sequence** SWITCH CONTACTS Before During End of Start Cycle Cycle * Instantaneous 4-3 4-5 Delayed (D2) 11-6 11-7 Delayed (D1) 9-10 9-8 * D2 trips approximately 2-1/2% of range after end of cycle. Assumes a sustained closed start signal (i.e. longer than the dial set time). OFF DELAY Timing Sequence SWITCH CONTACTS Before During End of Start Cycle Cycle * Instantaneous 4-3 4-5 Delayed (D2) 11-6 11-7 Delayed (D1) 9-10 9-8 * D2 trips approximately 2-1/2% to 5% of range after end of cycle. ** Assumes a sustained closed start signal (i.e. longer than the dial set time). BLACK Circuit Closed GRAY Circuit Open MODEL NUMBER MODEL NUMBER 322B 2 RANGE VOLTAGE & FREQUENCY ARRANGEMENTS ON-DELAY (reset on power interruption) 1 OFF-DELAY (non-reset on power interruption) 2 Special 0 SWITCH DIFFERENTIAL 2-1/2% - 5% of dial range 2
FEATURES
STANDARD surface mounting unit, clutch contact CS SPECIAL CK Automatic Timing & Controls 800.727.5646 atcdiversified.com