Page 33 - IDEC timer catalogue

Timers GT3D Series

Instructions: Setting GT3D-2, GT3D-3 Timers

Timed OUT Indicator

Digital Time Display m Time Setting Switches & Pilot Lights
(LCD backlit with red LED)
Digital Switch

j Indication Mode Selector l Time Range Selector
1 1 9.99S – 99.9H

k One-Shot Time Selector Display Lights
A, B, C, D

Step 1 Desired Mode/Selection Remarks
Time Display j Indicator Mode Operation Mode k Operation
Mode Selector Mode Selector

Time elapsed 1 A
ON-delay 1 A 1. Use the fl at screwdriver to set the selectors. Since selectors do not
Time remaining 1 turn all the way around, both clockwise and counterclockwise rotation
may be necessary. Relays & Sockets
Time elapsed 1 B
Select the desired time Interval B 2. The j Indicator Mode Selector determines whether the Digital
Time Display shows the time elapsed or time remaining. The k
display and operation Time remaining 1 Operation Mode Selector determines the desired operation mode.
modes.
Decide which display and mode is desired, then use these two selec-
Time elapsed 1 C tors jk to set the operation mode.
Cycle 1 C
Time remaining 1 3. The j Operation Mode Selector has two blank modes which are
not intended for use. Always have this selector set to A, B, C, or D.
Time elapsed 1 D
Cycle 3 D Timers
Time remaining 1
Step 2 Desired Operation Selection Remarks
l Time Range Selector
Base Time Ranges Decimal Point Time Increment 1. The l Time Range Selector controls both the decimal point indica-
Indicator Indicator
tor (9.99, 99.9, 999) and the time increment indicators S (seconds), M
0.01 seconds to 9.99 seconds 9.99 (minutes), and H (hours).
Select a time range 0.1 seconds to 99.9 seconds 99.9 S 2. Chose which base time range contains the targeted timer setting.
that contains the Then use the l Time Range Selector to set the decimal point indica-
desired period of time. 1 second to 999 seconds 999 tor and time increment indicator to its corresponding pair of settings. Terminal Blocks
0.1 minutes to 99.9 minutes 99.9 3. Since these confi gurations offer a complete range of settings from
M
1 minute to 999 minutes 999 0.01 seconds to 99.9 hours, the setting of 9.99 for minutes and the
9.99 and 999 settings for hours are not listed and should not be used.
0.1 hours to 99.9 hours 99.9 H
Step 3 Desired Operation Selection Remarks
Use the m Time Setting Digital Switch to set the desired
period of time. It is important to remember that the setting
Set the precise period of time desired by using the m Time Setting Digital Switch.
of the l Time Range Selector determines the units of time
measurement as well as the implied decimal point location. Circuit Breakers

It is important to remember that the l Time Range Selector not only selects the time range but also infl uences the interpretation of the Digital Time Display.
Changing the l Time Range Selector setting changes the units of time measurement (seconds, minutes, hours) as well as the decimal point location.

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