GT3W Series
Timers
837
USA: 800-262-IDEC Canada: 888-317-IDEC
Switches & Pilot Lights
Display Lights
Relays & Sockets
Timers
Terminal Blocks
Circuit Breakers
Instructions: Setting GT3W Timer
T2 Time Range Selector
T1 Setting Knob
T2 Setting Knob
Operation Mode Selector
T1 Time Range Selector
1. The switches should be securely turned using a fl at screwdriver 4mm
wide (maximum). Note that incorrect setting may cause malfunction.
The switches, which do not turn infi nitely, should not be turned beyond
their limits.
2. Since changing the setting during timer operation my cause malfunction,
turn power off before changing.
Safety Precautions
Special expertise is required to use Electronic Timers.
All Electronic Timer modules are manufactured under IDEC’s rigorous quality
control system, but users must add a backup or fail safe provision to the
control system when using the Electronic Timer in applications where heavy
damage or personal injury may occur should the Electronic Timer fail.
Install the Electronic Timer according to instructions described in this catalog.
Make sure that the operating conditions are as described in the specifi ca-
tions. If you are uncertain about the specifi cations, contact IDEC in advance.
In these directions, safety precautions are categorized in order of importance
to Warning and Caution.
Warning
Warning notices are used to emphasize that improper operation may cause sever
personal injury or death.
Turn power off to the Electronic timer before starting installation, removal,
Wiring, maintenance, and inspection on the Electronic Timer.
Failure to turn power off may cause electrical shocks or fi re hazard.
Emergency stop and interlocking circuits must be confi gured outside the
Electronic timer. If such a circuit is confi gured inside the Electronic Timer,
failure of the Electronic timer may cause malfunction of the control system, or
an accident.
•
•
•
•
•
•
•
Caution
Caution notices are used where inattention might cause personal injury or dam-
age to equipment.
The Electronic Timer is designed for installation in equipment. Do not install
the Electronic Timer outside equipment.
Install the Electronic Timer in environments described in the specifi cations. If
the Electronic Timer is used in places where it will be subjected to high-tem-
perature, high-humidity, condensation, corrosive gases, excessive vibrations,
or excessive shocks, then electrical shocks, fi re hazard, or malfunction could
result.
Use an IEC60127-approved fuse and circuit breaker on the power and output
line outside the Electronic Timer.
Do not disassemble, repair, or modify the Electronic Timer.
When disposing of the Electronic Timer, do so as industrial waste.
•
•
•
•
•
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Ready to Order?
Steven Engineering
Technical Question?
