171 LEDOM
FEATURES
•
Elapsed time indicator (up counter)
•
Interval timer (down counter)
•
Two switchable outlets
− Turn loads on or o
•
Split-second accuracy
•
“Second” hand rotates one revolution/60 sec
•
“Minute” hand rotates one revolution/60 min
•
Power switch starts the timing cycle
•
End of cycle buzzer
Operating Instructions
764-41 RevB
Example 1:
Interval Timer/Outlet on with Audio tone after 53 minutes
21 seconds
1. Set power switch “o”.
2. Rotate “seconds” hand clockwise to the fi rst mark past the
black “20” numeral.
3. Rotate “minutes” hand clockwise to the third mark past the
black “50” numeral.
4. Set the outlet control switch to the left position.
5. Observing the Precautions below, plug a load into the outlet.
6. Put power switch in the “on” position to start the timing cycle.
7. Result: Load will be on for 53 minutes 21 seconds. At the end of the
timing event, the buzzer will signal. Turn “o” the timer with the
power switch; reset a new timing cycle.
Example 2:
Elapsed Timer Indicator/Time Unknown
1. Set power switch “o”.
2. Rotate “seconds” hand clockwise to the red “0” numeral.
3. Rotate “minutes” hand clockwise to the red “0” numeral.
4. Record an unknown timing event by putting the power switch in
the “on” position at the beginning of the event.
5. Result: The timer records the elapsed time until the power switch
is put in the “o” position.
Note: Red numerals count up; black numerals count down.
PRECAUTIONS
•
Always set the “seconds” hand by rotating clockwise.
•
To prevent fi re or electrical shock, do not expose to rain or moisture.
•
No user serviceable parts inside – do not open.
•
Refer servicing to qualifi ed personnel.
•
Observe AC line voltage, frequency and load ratings on nameplate.
Find Quality Products Online at: sales@GlobalTestSupply.com
www.GlobalTestSupply.com
Loading...