MODEL 788 INDUSTRIAL TIMER (IT-788)

Class 1, Div 2, Groups C&D, Non-Incendive

The Model 788 weekly timer was designed for hazardous locations. It has 8 outputs that can control loads as high as 3.75A each. Each of the 25 events (outputs switched on or off) can control from one to eight outputs. The timing cycle can be as long as two weeks.

it-788-2

The programming is stored in flash memory so it survives a loss of power. The time keeping function is maintained with a back-up battery for up to 6 days.

Features

  •   Hazardous Location Rating – Non-Incendive
  •   Class 1, Div 2, Groups C&D, T3
  •   8 DC outputs
  •   Backup battery to keep time during power fail
  •   25 timed events
  •   1-8 outputs controlled for each event
  •   Resolution – Week 1 or 2, Day of week, Hours, minutes

Specification:

Power Supply
12V to 24V DC

Average Current
27 mA in programming mode (not including loads)
1.3mA in timing mode

Current per output
3.75A sinking max

Simultaneous outputs
8 (All loads must total 10 Amps or less)

Output duration
1 to 99 mins

Maximum current draw
10 Amps DC

Display
2 x 4 digit, 7-segment LCD and LEDs

Back up battery time
6 days

Accuracy
+/- 4 minutes per year from – 40 deg C to +85 deg C
+/- 1 minute per year from 0 deg C to +40 deg C

Operating Temperature
– 40 deg C to +40 deg C

Environment
unheated but sheltered from all precipitation

Size
6.75″ Long x 4.75″ Wide x 2.25″ Deep

Options:

  •   Output Source Board – sources current to load (standard is sinking)
  •   Minor software customization
  •   Overlay customization

Downloads

MODEL 788 INDUSTRIAL TIMER Spec sheet

Model 788 Timer – top view