48

1/16 DIN LED Digital Display Timer

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 repeat-

able timing cycles.

HIGH ACCURACY: The 425 utilizes a crystal controlled oscillator which

provides 0.1% timing accuracy across all rated voltages and tempera-

tures.

CYCLE PROGRESS INDICATION: The 425 offers the industry’s brightest

green LED display in a 1/16 DIN package. Depending on the Model, the

three-digit LED display will time UP to or 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. When-

ever 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, allow-

ing 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 OPTION: The 425 can be ordered as standard 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: A version of the

425 is available with one set of SPDT instantaneous contacts and one

set of SPDT delayed contacts.

DELAYED RELAY VERSION: A version of the 425 is available with DPDT

delayed contacts.

MODEL 425A300Q10XX (SPDT INSTANTANEOUS & SPDT DELAYED

RELAYS): Timing starts when power is applied to terminals 2 and 7.

The instantaneous relay energizes, the LED digital display begins to

increment from 0 and the timing LED blinks slowly. When the preset

value is reached, the LED blinks rapidly and the Delayed SPDT relay is

energized. The timer remains in this timed-out condition until reset by

removing power.

MODEL 425A300Q20XX (DPDT DELAYED RELAY): Timing starts when

power is applied to terminals 2 and 7. The LED display begins to incre-

ment from 0 and the timing LED blinks slowly. When the preset value is

reached, the LED stops, the timing LED blinks rapidly and the Delayed

DPDT relay energizes. The timer remains in this timed-out condition until

reset by removing power.

MODEL 425A300Q10MX & MODEL 425A300Q20MX (MEMORY OP-

TION): Operation is same as above; however, units will not reset when

power is removed during the timing cycle. Timers with this option can

only be reset after time-out, or by adjusting the setting knobs to 000

during the timing cycle.

CAUTION: Be advised that the relay(s) will transfer when setting knobs

are adjusted to 000 when power is applied.

• 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 Option Standard Feature

• Passes NEMA Showering Arc Noise Test

• Panel Mounting or 8-pin Octal Plug-in mounting

• Timing Up to or Down From the Set Point

MODEL NUMBER

MODEL NUMBER

425A

300

Q

RANGE

0 to 9.99 or 99.9 or

999 SEC,MIN,HR

300

VOLTAGE & FREQUENCY

120 VAC 50/60 Hz

Q

OUTPUT ARRANGEMENT

Instantaneous Relay (SPDT),

Delay Relay (SPDT)

10

Delay Relay (DPDT)

20

MEMORY

Standard-No Memory

X

With Memory (EEPROM

M

FEATURES

Standard (Time Up)

X

Standard (Time Down)

D

Special

K

ACCESSORIES 8-PIN

8-Pin surface/DIN rail socket

000-825-85-00

Hold down clips for above socket

407-025-13-00

Panel mounting bracket

405-320-02-00

Plug-in socket kit (8-pin)

319-261-45-00

8-Pin socket w/rear facing terminals

000-825-90-00

E48329

Automatic Timing & Controls

800.727.5646

atcdiversified.com

Automatic Timing & Controls

800.727.5646

atcdiversified.com