Extech Instruments 375475 User Manual

User's Guide

7-Day Programmable Digital Timer
Model 375475

Introduction

Congratulations on your purchase of the Extech 375475 Digital Timer. This device
features individual or multi-day timer settings (up to 6 On/Off settings per day), easy-to­read LCD, and battery-backup for the real-time clock. Careful use of this timer will
provide years of reliable service.

V1.1 3/04

2

AM

Mo

12:00

00

|ON

AM

WE

12:00

00

|ON

AM

TU

12:00

00

|ON

AM

US

12:00

00

|ON

AM

MoTWTFUEHR

12:00

00

|ON

AM

SSAU

12:00

00

|ON

AM

MoTWTFSSUEHRAU

12:00

00

|ON

Specifications

General Specifications

Input Line Voltage 120VAC (60Hz)
Switching Interval 1 minute minimum
Max Output Current 15A (resistive load); 8A (lighting load)
Max Resistive Load 1800W (15A x 120VAC)
Max Lighting Load 960W (8A x 120VAC)
Max Motor Load 1 Hp
Memory Backup One 1.5VDC Type N battery
Dimensions 4x2x2" (104x54x51mm)
Weight 5.25 oz. (150g)

Operation

Set the Real-Time Clock

1. Day Set: Hold down the CLOCK button and
press the WEEK button until the correct day
appears at the top of the display.

2. Time Set: Hold down the CLOCK button and press the HOUR button until the display
indicates the correct hour. You may have to cycle through the hours twice to obtain the
proper AM or PM (on the left side of the display).

3. Hold down the CLOCK button and press the MIN button until the display indicates the
correct minutes. Seconds will automatically reset to zero.

Set the Power ON/OFF Timers

1. Push the PROG button once. 1

ON

will appear near the lower left corner of the display to

indicate the the first power-on time is ready to be programmed.

2. Press the HOUR and
MIN buttons to enter
your first desired
power-on time.

3. Press the WEEK button to select
the desired day. These days appear
along the top of the display. If “Mo
Tu We Th Fr Sa Su” all appear on
the display, these days all have the
same power-on time. You can
select “Mo Tu We Th Fr” as a
group, “Sa Su” as a group, or a
single day.

AM

MoTWTFSSUEHRAU

_ _ _ _

|ON

AM

MoTWTFSSUEHRAU

12:00

00

|ON

AM

Mo

12:00

00