AN24 & AN28 Annunciators
Instruction Manual
2
Disclaimer
The information contained in this document is
subject to change without notice. Dwyer
Instruments, Inc makes no representations or
warranties with respect to the contents hereof;
and specifically disclaims any implied warranties
of merchantability or fitness for a particular
purpose.
•
Read complete instructions prior to installation
and operation of the annunciator.
•
Risk of electric shock or personal injury.
•
This product is not recommended for life support
applications or applications where malfunctioning
could result in personal injury or property loss.
Anyone using this product for such applications
does so at his/her own risk. Dwyer Instruments,
Inc shall not be held liable for damages resulting
from such improper use.
WARNING
Cancer and Reproductive Harm -
Limited Warranty
Dwyer Instruments, Inc warrants this product
against defects in material or workmanship for
the specified period under
“Specifications” from
the date of shipment from the factory. Dwyer
’s
liability under this limited warranty shall not
exceed the purchase value, repair, or
replacement of the defective unit. See Warranty
Information and Terms & Conditions on
© 2020 Dwyer Instruments, Inc.
All rights reserved.
Introduction
The Series AN24/AN28 is a multipurpose panel
mounted alarm annunciator available for four or eight
inputs.
It can be set up to respond to alarm conditions based
on 8 field selectable alarm sequences, including first-
out indication. The alarm channels accept normally
open, normally closed, NPN open collector transistor,
and logic level inputs. Three front panel pushbuttons
are used during sequence operation to silence the
horn, acknowledge the first out alarm, and reset
cleared channels as required by the sequences.
The Series AN24/AN28 has two SPDT relays that can
be used for additional external alarm indication,
additional audible devices, or for process control.
Ordering Information
85-265 VAC*
Model
12-36 VDC*
Model
Description
AN24-1
AN24-2
4 Channel
Annunciator
AN28-1
AN28-2
8 Channel
Annunciator
* All models may be powered from AC or DC, see
for details.
Enclosures
Series
# of
Meters
Material
Mounting
PME-01
1
Low-Cost Plastic
NEMA 4X
Through
Cover
PME-02
2
PME-11
1
Plastic NEMA 4X
Through
Door
PME-12
2
PME-13
3
PME-14
4
PME-15
5
PME-16
6
