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. It is also applicable to many other purposes, where a weather resistant, mast mountable power supply is required. [. . . ] for a QLC50 (30 VDC) plus two WAT12 or DAT12 transmitters (RDCV). 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. Refer to Figure 2 or the instruction label on the unit's cover. 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). 6 Enter the output cable(s) through the rightmost cable gland(s). For the best protection against RF interference, follow the earthing instructions in Figure 4. Make sure that no cable shield mesh gets on the circuit board. 7 Do the output wiring to the removable screw terminal block X6. Check for correct jumper settings at X5, X7 and X8 (refer to the instruction label or Figure 2). 8 Carefully reattach the enclosure cover with the four screws. WHP151 Power Supply Ruggedized Mains Power Supply Heating and operating power outputs for standard wind sensors and transmitters Temperature control of heating power output Compact size with mast mounting Outdoor use with IP65 (Nema 4) housing The WHP151 has a weather-proof, cast aluminium enclosure mountable either to Ø 60 mm or 100 mm pole masts (the Ø 100 mm mounting clamp is included in the delivery). Figure 1. [. . . ] WHP151-U188en-1. 2 I S O 9001 Figure 4. Earthing of power output cable shield Figure 5. Typical application of the WHP151 Mains Power Supply [. . . ]