Dwyer BPS-005 User Manual

Dwyer instruments, inc, Series bps low cost dc power supply, Bulletin pc-bps-005

Bulletin PC-BPS-005

The Series BPS Building Automation Power Supply is used to convert
24 VAC to a regulated DC power source for transmitters with 4 to 20 mA
outputs. The output voltage can be field adjusted from 1.5 VDC to 29 VDC
using a potentiometer. The 1 A or 3 A fuse (depending on model) protects
the power supply from over-current conditions. The snap-on bracket can
be quickly surface mounted to any flat surface.

Example:
For output voltage set at 5 VDC, the output current should not exceed 313
mA.
(5V/24V) x 1.5A = 0.313A

Isolation:
If the DC ground is connected to the AC ground, the fuse will open.
If the AC and DC circuit grounds cannot be isolated, move the shorting
jumper from J1 to J2 and add a shorting jumper to J3. In this case the out-
put current is limited to 400 mA

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000

www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Fax: 219/872-9057

e-mail: [email protected]

SPECIFICATIONS
Input: 24 VAC/VDC 50/60 Hz.
Output: 24 VDC (full wave rectified and regulated) adjustable 1.5 to 29
VDC.
Maximum Current Output: 1.5 A or 0.5 A (depending on model).
Over-Current Protection: 1 A fuse.
Operating Temperature: 32 to 130°F (0 to 55°C).
Humidity Limits: 95% (non-condensing).
Weight: 0.4 lb.
Agency Approval: RoHS.

Specifications - Installation and Operating Instructions

Series BPS Low Cost DC Power Supply

SNAPTRACK

4-1/16

[103.12]

2-19/64

[58.17]

1-15/16

[49.02]

11/16

[17.27]

Printed in U.S.A. 2/12

FR# R6-443738-00

OUTPUT

VOLTAGE

ADJUSTMENT

REGULATED

DC VOLTAGE

OUTPUT

LINE VOLTAGE

TRANSFORMER

J1
J2

24 VAC IN

WIRING DIAGRAM

For applications where the input and output share the common
or ground, add a jumper on BPS-005 between “G” on the input

and “-” on the output and cut one of the leads on diode (D3). On BPS-015, move
jumper from “J1” to “J2” amd short jumper “J3”. Output is reduced to 200 mA on the
BPS-005 and 400 mA on the BPS-015.

NOTICE

To prevent overheating, the output current must not exceed the
ratio of the output voltage to the input voltage times the rated cur-

rent

CAUTION

MODEL BPS-005

MODEL BPS-015

2-13/32

[61.19]

[76.20]

2-1/16

[52.28]

19/32

[14.97]