User manual VAISALA WHP151 QUICK REFERENCE GUIDE

[. . . ] Quick Reference Guide DESCRIPTION The WHP151 is a compact mains power supply unit designed for outdoor use. It has three outputs: one provides the shaft heating power for the WA151 wind sensors, and the other two provide the operating power to various data loggers or transmitters measuring the sensors. [. . . ] The 20 VDC option, with a 120 mA current limit, suits for excitation of both local and remote WAT12, WAT15 or DAT12 transmitters. A 220 mA total current can be taken from the 30 VDC and RDCV outputs altogether. However, all possible sensor power savings should be configured in the QLC50 and 5 mA current loops selected in the WAT12 device(s). Optionally, the RDCV output may be used for charging a small (12 V, 1. . . 4 Ah) battery. During a mains break the battery will be automatically switched to the 30 VDC output, hence serving as a no-break back-up supply for a QLC50 system, for example. INSTALLATION Figure 1 illustrates mounting of the WHP151 to a pole mast with the standard mounting clamp. For installation, follow the procedure below: 1 Remove the 4 screws attaching the unit cover. 2 Attach the unit to its mounting plate (if not already fixed) with the two M4 screws. 3 Attach the unit to the mast at suitable height with the proper mounting clamp. 4 Check that the X2 jumper selection corresponds to the local mains voltage level. 5 With the mains voltage disconnected enter the mains cable through the leftmost cable gland and do the input wiring to X1 (L & N, spring loaded terminals) and Earth (crimp & screw). For the best protection against RF interference, follow the earthing instructions in Figure 4. Check for correct jumper settings at X5, X7 and X8 (refer to the instruction label or Figure 2). [. . . ] Fuses Primary 0. 25 AT replaceable fuse, 5 × 20 mm (F1) Secondary 0. 4 A and 1. 1 A solid state PTC-fuses, self recovering Electrical connections Input/output connectors X1: 2-terminal connector for mains i/p (L, N) (and a screw connection for Earth) X6: 6 terminals for power output, and two spare terminals for data cable extension Jumper connectors X2: Mains input voltage selection (230/115 VAC) X5: RDCV output voltage selection (13/20 VDC) X7: HTGV output enable mode (<+3 °C/constantly) X8: Output voltage selection 18/38 VRMS Cable glands 3 glands, each for cable Ø 4 8 mm (with coaxial clamping of cable shield) Operating temperature 50 . . . 100 % RH Material Housing Cast aluminium, painted grey, IP65 (Nema 4) Mounting plate Stainless steel Dimensions Unit 125 × 81 × 58 mm (w × h × d) (cable glands add 20 mm to height) Mounting To a Ø 60 or 100 mm pole mast Weight 1. 4 kg with standard mounting accessories Head Office: VAISALA Oy PL 26, FIN-00421 Helsinki FINLAND Phone: +358 9 894 91 Telefax: +358 9 894 9227 Telex: 122832 vsala fi Figure 3. [. . . ]