GraLab 450 User Manual

Model 450
Electronic Timer Operating Instructions
764-25 9807
Specifications
Size:
3.5" x 4" x 8"
Accuracy:
± .01% @ 1 second relative to power frequency (20°C ambient, no load)
Repeatability:
± .005% @ 1 second relative to power frequency (20°C ambient, no load)
Temperature Range:
0°C to 55°C
Humidity:
0 to 95% non-condensing
Voltages:
As printed on ratings label
Power Ratings:
As printed on ratings label
Timer Range:
SECS: 1 - 99 seconds 1/10 SECS: .1 - 9.9 seconds
PRECAUTIONS
•
Use only at AC voltage printed on ratings label.
•
Ensure outlet load does not exceed maximum specified on
outlet receptacle.
•
Always turn timer OFF before plugging in or removing power
and accessory plugs.
•
Always protect timer from jars and shocks.
•
Avoid spilling liquids on timer.
•
Do not spray with or immerse in water.
Thank you for purchasing America’s premier timing device. Please take
a moment to read these instructions and familiarize yourself with your
GraLab timer. On page two of this document we have provided a list
of basic features and controls as well as illustrated diagrams and three
examples on how to use your GraLab timer. Once you are comfortable
with the basic features of your timer, we are confident you will enjoy
it for years to come.
Before trying these examples, read the precautions, plug the timer into
an AC outlet and turn the timer “on”.
Please call us at 1-937-433-7600 or e-mail us at glsupport@gralab.com
if you have any questions or comments.
900 Dimco Way
•
Centerville,Ohio 45458
P.937-433-7600
•
F.937-433-0520
•
www.dimcogray.com
•
glsupport@gralab.com

GraLab 450 Specifications

General

Brand	GraLab
Model	450
Category	Timer
Language	English

Summary

Model 450 Timer Specifications

Key Specifications

Details size, accuracy, repeatability, temperature, humidity, voltage, power ratings, and timer ranges.

Operating Precautions

Essential safety guidelines for using the timer, including voltage, load limits, power handling, and environmental care.

Model 450 Basic Features and Controls

Timer Front Controls

Identifies and explains the front-facing controls and displays of the timer.

Timer End Components

Details the AC outlet, master switch, and foot switch jack located at the end of the timer.

Timer Back Features

Describes features on the back of the timer, including mounting keyslots and non-skid feet.

Model 450 Timer Operation Modes

Unswitched Timer Operation

Step-by-step guide for operating the timer in its unswitched mode.

Single-Cycle Switching Operation

Instructions for using the timer in the single-cycle switching mode.

Operational Notes

Important notes regarding cycle stopping, resetting, and adjusting controlled devices.