Ultra Timers
UT-10 & UT-20 Installation Instructions
Operational Specifications:
Timing:
1 to 620 Seconds
Voltage:
12 - 24VDC/VAC
Voltage Selection:
12VDC: Factory Preset
24VDC: Cut Red Jumper (W2)
12VAC: Cut White Jumper (W1)
24VAC: Cut Red and White Jumper (W1,W2)
Current:
12 Volts
Relay inactive: 9mA
Relay active: 65mA
24 Volts
Relay inactive: 28mA
Relay active: 102mA
Relay Contacts:
Ratings: 5 Amp @ 24VDC
5 Amp @ 120VAC
LED Indicator:Red LED illuminated when relay is active
+
_
T GND
R NO C NC
W1
AC
WHITE
24V
RED
W2
UT-10
S2
4
1
1
8
S1
BASE
TIME
ON
ON
+
_
T GND
R NO C NC
W1
AC
WHITE
24V
RED
W2
UT-20
S2
1
8
S1
BASE
TIME
ON
ON
1
8
PULSE
WIDTH
Off
Off
Off
Dual Delay
Off
On
Off
Delayed Operate
-
Off
On
Delayed Release
On
On
On
One Shot
S1-8
S1-7
S1-6
Mode
UT-10 Mode Selection
UT-20 Mode Selection
AlarmSaf 65A Industrial Way Wilmington, MA 01887-3499 (978) 658-6717 FAX: (978) 658-8638 Web Site: www.alarmsaf.com
Off
On
Off
On
Off
On
Delayed Pulse
Off
On
On
On
Off
On
Double Pulse
On
Off
Off
Off
Off
Off
Dual Delay
On
Off
Off
Off
On
Off
Delayed Operate
On
Off
Off
-
Off
On
Delayed Release
On
Off
Off
On
On
On
One Shot
S2-
7
S2-
6
S2-
5
S1-
8
S1-
7
S1-
6
Mode
Terminal Legend:
+ :
Positive Input Power
R :
Reset
- :
Ground
NO :
Normally Open Contact
T :
Trip
C :
Common Contact
GND :
Ground
NC :
Normally Closed Contact
Note:
Terminals 2 & 4 (Ground) are internally connected
52-093
091996
The timer mode is selected with
the following switches:
The timer mode is selected with
the following switches:
Mode Configuration
Trip Terminal (T)
v
Timer may be configured for a positive or negative trip signal.
}
Positive Trip: S2-1 ON (Default Setting)
}
Negative Trip: S2-1 OFF
Retriggering
v
Retrigger Mode:
}
S1-8 OFF. Repeated applications of valid trip signal, applied during timeout, will extend timing.
v
Non-Retrigger Mode:
}
S1-8 ON. Repeat applications of a trip signal, applied during timeout, will not affect timing.
Reset Terminal (R)
v
Reset is used to cancel the operation of the timer.
v
Upon application of a valid reset signal, timing ceases and the output contacts return to their originaal
position.
v
The timer may be configured for reset to operate on a positive or negative reset signal.
v
To use the reset terminal, S2-4 (Reset Enable Switch) must be OFF.
}
Reset Disabled: S2-4 ON (Default Setting)
}
Positive Reset: S2-2 ON (Default Setting)
}
Negative Reset: S2-2 OFF
v
Note: When not using the reset terminal S2-4 should be ON.
Maintained Reset
v
The reset terminal may be used to override or block a trip signal.
v
When S2-3 is ON, a continuous signal applied to the reset terminal will cause the timer to remain in reset
mode and ignore all trip signals.
Time Set Instructions
Pulse Width Adjustment
v
On the UT-20 only, the pulse width is adjustable for the Double Pulse and Delaed Pulse functions.
v
The pulse width (P) is adjustable from 1 to 220 seconds by turning the Pulse Width potentiometer.
Base Time Adjustment
v
Timing is adjusted using the time set switches (S1-1 through S1-5) in conjunction with the Base Time
Potentiometer.
v
The Base Time adjustment is adjustable from 1 to 20 seconds. This establishes a starting point for the time set
switches as follows:
}
Set the time set switchs for a value of 1 (S1-1 = ON, S1-2 through S1-5 = OFF).
}
Adjust the Base Time Potentiometer for a particluar time. This is the Base Time.
v
S1-1 through S1-5 are time multipliers valued as follows: S1-1 has a value of 1, S1-2 = 2, S1-3 = 4, S1-4 = 8
and S1-5 = 16. These are selected by placing them in the ON position. The sum of the individual switch values
selected equals their total value.
}
16
0
S1-5
8
0
S1-4
4
0
S1-3
2
0
S1-2
1
0
S1-1
ON Value
OFF Value
Switch
Maximum Total Value if S1-1
through S1-5 are ON = 31.
