Bulletin PC-BPS-005 The Series BPS Building Automation Power Supplyis 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 Phone: 219/879-8000www.dwyer-inst.com P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.Fax: 219/872-9057e-mail: info@dwyer-inst.com 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 ©Copyright 2012 Dwyer Instruments, Inc.Printed in U.S.A. 2/12FR# R6-443738-00 OUTPUT VOLTAGE ADJUSTMENT REGULATED DC VOLTAGE OUTPUT LINE VOLTAGE TRANSFORMER J1 J2 J3 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] 3 [76.20] 2-1/16 [52.28] 19/32 [14.97] 4-1/16 [103.12] 2-19/64 [58.17] 1-15/16 [49.02] 11/16 [17.27]Next >