Time Control Equipment - Rauland Borg Customer Connection

Time Control Equipment
Model: 2520 — Clock Module
2521 — Digital Clock (Flush Mount)
2522 — Digital Clock (Surface Mount)
2520
2522
2521
Features
• Large, Easy-to-Read Display
• Operates Stand-Alone or as a Correctable Secondary to a Master
Clock
• 12-or 24-Hour Display Format
• Built-in Count Up and Count Down Electronic Timer
Capability
• Operates from 24 VAC, 120 VAC, or 12 VDC
• Available in Flush-or Surface-Mount Configurations
• 2-Wire Power and Correction
• Highly Accurate Crystal Controlled Time Base
• Battery Back-up Capability Using 9-Volt Battery (not included)
• Ability to Display "FirE" or "BELL" in Response to External Signal
• Hourly Correction Capability
Specifications
Display: 4 character, 7-segment red LED
Character Height: 2.5" (6.35 cm)
Inputs: Count/Hold, Reset, fast Set, SLow Set,
“Fire,” “Bell”
Output: Countdown alarm
Power Required: 400 mA @ 12 VDC
500 mA @ 24 VAC
100 mA @ 120 VAC
Shipping Weight:
2520 (Module)—1.5 lbs. (.68 kg)
2521 (Flush Mount)—2.05 lbs. (.93 kg)
2522 (Surface Mount)—2.15 lbs. (.97 kg)
Dimensions:
2520 (Module):
9.5" (24.1 cm) length
4.4" (11.2 cm) height
2.4" (6.1 cm) depth
2521 (Flush Mount):
12.0" (30.5 cm) length
2.9"' (7.4 cm) depth
6.0" (15.2 cm) height
Requires 5-gang electrical box
2522 (Surface Mount):
12.0" (30.5 cm) length
6.0" (15.2 cm) height
4.3" (10.9 cm) depth
Associated Equipment:
All Rauland Master Program Clocks
2415 Power Supply
2416 Power Supply
2423 Elapsed Timer Switch Kit
2534 Dual Face Mounting Kit
Description
The Rauland 2520 Series of Digital Clocks are a series of versatile,
highly accurate time keeping instruments. The units are designed
to operate as “Stand-alone” clocks, secondary clocks (corrected by a
master program clock), elapsed timers, or countdown timers.
The 2520 Series clocks may be operated from either a 24-volt AC
source or a 120-volt AC source. In addition, the clocks have the
ability to operate from a 12-volt DC source. The unit’s time base
can be backed up using a 9-volt DC battery. The clocks operate
with a standard 12-hour display; however, they may be readily field
selected to 24-hour display. While intended for 60 Hz operation,
they may be easily selected for 50 Hz operation. Only two wires are
required for clock operation and correction.
Rauland is a Division of AMETEK, Inc.
www.rauland.com
USA +1 800 752 7725
Mid East & Africa +20 122 2154016
Asia Pacific +65 64835750
Europe +30 693 7501168
Latin America +1 847 454 4203
Architect and Engineer (A&E) Specifications
available online at customerconnection.rauland.com
Specifications subject to change without notice.
Rev 05/2017 © 2017 Rauland. Printed in USA.
Time Control Equipment
Description (cont.)
When used in conjunction with a master program clock, corrections
are made automatically as follows:
“fast” and “slow” set buttons. No connection to a master clock is
required.
1. Every hour
Operation as an Elapsed Timer: This application requires the use of a
Rauland Model 2423 Switch Kit to provide “Count/Hold” and “Reset”
functions. The units count minutes and seconds up to one hour and
then show hours and minutes up to 99:59 (hours: minutes).
2. Whenever time is set on the Master Clock
3. When power is restored after a power failure
4. When the master clock adjusts for daylight savings
time.
The 2520 Series clocks may be used in time control systems that
intermix digital and analog secondary clocks; such systems may be
corrected by a Rauland master clock. An adapter module is usually
not required in these applications.
Operation as a “Stand-alone” Clock: Operation in this application
is accomplished by simply applying power to the unit and adding
Operation as a Countdown Timer: This application requires the use
of a Rauland Model 2423 Switch Kit to provide “Count/Hold” and
“Reset” functions as well as “Fast” and “Slow” set switches. The unit
counts down from as high as 99:59 (minutes: seconds). An alarm
output is activated when the countdown reaches 00:00. This output
may be used to directly drive a tone alert device.
A dual mount kit, model 2534, is available for the 2522 Surface
Mount unit. The kit allows back-toback or single clock mounting of
the clocks in wall or ceiling configurations.
Rauland is a Division of AMETEK, Inc.
www.rauland.com
USA +1 800 752 7725
Mid East & Africa +20 122 2154016
Asia Pacific +65 64835750
Europe +30 693 7501168
Latin America +1 847 454 4203
Architect and Engineer (A&E) Specifications
available online at customerconnection.rauland.com
Specifications subject to change without notice.
Rev 05/2017 © 2017 Rauland. Printed in USA.