Description
ATC, 425A-300-Q-10-M-D, 425A Series 1/16 DIN LED Digital Display Timer, Instantaneous Relay (SPDT), Delay Relay (SPDT) with Memory (EEPROM), Standard (Time Down)
Features:
- Easy-To-Read High Intensity Green LED Display
- Timing From .01 Sec. to 999 Hrs in One Unit
- Switch Selectable Timing Ranges Are Tamper Proof When Panel Mounted
- Timing LED Indicates Output Relay Status
- Time Preset Can Be Adjusted While Timing
- EEPROM memory
- Passes NEMA Showering Arc Noise Test
- Panel Mounting or 8-pin Octal Plug-in mounting
- Timing Down From the Set Point
Digital Setting
The 425 is set digitally by rotating each setting knob until the desired Time Preset is displayed by the number wheels on the front of the timer. The digital setting allows exact, accurate and repeatable timing cycles.
High Accuracy
The 425 utilizes a crystal controlled oscillator which provides 0.1% timing accuracy across all rated voltages and temperatures.
Cycle Progress Indication
The 425 offers the industry’s brightest green LED display in a 1/16 DIN package. The three-digit LED display will time Down from the Time Preset.
Through its internal micro controller, the 425 keeps track of the time setting by monitoring each of the three Time Preset switches. Whenever a change is made in the time preset, even during a cycle, the 425 instantly re-computes and adjusts the current timing cycle.
1/16 Din Housing
The 48mm2 (1/16 DIN) housing is compact, allowing the 425 to be panel mounted or plug-in using an 8-pin octal socket. The decimal point and SEC/MIN/HRS switches are located on the side of the unit. When panel mounted, these range switches are not accessible to the operator. This Tamper-proof feature prevents unauthorized or hazardous changes to the timing range.
Memory
The 425 comes with an EEPROM memory. This allows the 425 to retain the elapse time or time remaining during momentary or sustained power interruptions.
Instantaneous and Delayed Relay Versions
425 comes with one set of SPDT instantaneous contacts and one set of SPDT delayed contacts.
Caution
Be advised that the relay(s) will transfer when setting knobs are adjusted to 000 when power is applied.
For more information, please see Data Sheet
| Model | ON-Delay Time Down |
| Ranges | Switch Selectable, 0 to 9.99,99.9 or 999 Sec/Min/Hrs |
| Load Relay | |
| Type | SPDT |
| Life | 10 Million operations (no load) |
| Contact Rating | 5 AMPS Resistive, 1/10 HP at 120 VAC |
| Temperature Rating | 0° to 140°F (-18° to 60°C) |
| Noise Immunity | Showering ARC per NEMA ICS 2-230, the 425A will withstand a voltage surge of 4500 volts for 50 microseconds without damage |
| Mounting | 8-Pin Octal plug-in base, Panel Mounting Bracket |
| Power Requirements | 120 VAC, 50/60 Hz;(10%,-20%); 5 WATT maximum |
| Repeat Accuracy | ± .1% over rated voltages |
| Reset Time | 100 mSEC minimum |
| Display | |
| Cycle Progress | 3 Digit Green LED Display, seven segment numeric |
| Timing LED | Red LED blinks slowly (once per second) during timing; blinks rapidly after time out. |
| Memory | EEPROM 100,000 read/write cycles |
| Housing | 1/16 DIN (48mm x 48mm) Housing |
| Weight |
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