Wheelock UTA-1 - UTA Configuration and Settings; Input Voltage and Tone Selection Switches; Volume Adjustment Control; Factory Default Settings

P82968 H
Sheet 3 of 5
Table 4: Duty and Ring Cycle
Cycle 90Vrms/20-30Hz 24VDC/AC, 48VDC
Duty Cycle 33% Max. 100% Max.
Min. Ring Cycle ON Time 0.8 Sec. 0.5 Sec.
Min. Ring Cycle OFF Time 1.6 Sec. 0.5 Sec.
Max. Ring Cycle ON Time 10 Sec. Continues
UTA SETTINGS:
The SW1 and SW2 switches of the UTA are used to set input voltage and desired tone as shown in Figure 2 and Table 5. The
potentiometer R12 (shown in Figure 2) is used to adjust the volume of sound.
The factory settings are:
Input Voltage = 90Vrms/20-30Hz (SW1 POS 1 set on 0)
Tone = Horn (SW2 POS 1,2,3,4 set on 0,0,1,1)
Volume = Maximum
Table 5: Input Voltage and Tone Selections
Switch Settings
Input Tone SW1 SW2
Voltage POS 1 POS 1 POS 2 POS 3 POS 4
Horn 1 1 0 1 1
24VDC Bell 1 1 0 1 0
Vibrating Chime 1 1 0 0 0
Single Chime 1 1 1 0 1
Horn 1 0 0 1 1
24VAC Bell 1 1 0 1 0
Vibrating Chime 1 1 0 0 0
Single Chime 1 1 1 0 1
Horn 1 0 0 1 1
48VDC Bell 1 0 0 1 0
Vibrating Chime 1 0 0 0 0
Single Chime 1 0 1 0 1
Horn 0 0 0 1 1
90VAC Bell 0 0 0 1 0
20-30Hz Vibrating Chime 0 0 0 0 0
Single Chime 0 0 1 0 1