Vaisala WHP25 QUICK REFERENCE GUIDE
Quick Reference Guide
WHP25 Power Supply
DESCRIPTION
The WHP25 is a compact size Mains Power Supply Unit intended
for outdoor use.
The nominal input power of 230 VAC can be changed by jumpers
between 100 VAC to 245 VAC (±10 %). There are two power
outputs, namely 24.0 VDC (max 5.2 A) and 38.0 VAC (max 0.9 A).
The WHP25 Outdoor Power Supply is capable of delivering power
to the whole WA25 Heated Wind Sensor System and additionally,
for example, to the RG13H Heated Rain Gauge.
The WHP25 has a water-proof housing made from cast aluminium,
mountable to a Ø 100 mm standard pole mast with a mounting
hardware included in the delivery. The unit can also be mounted to
the standard DKP11 Stacked Mast using the 10388DK mounting
kit.
INSTALLATION
Figure 1 illustrates mounting of the WHP25 to a Ø 100 mm pole
mast, with the standard mounting clamp. For installation, follow
the procedure below:
1 Remove the four screws attaching the cover of the WHP25 unit.
Remove the cover.
2 Attach the unit to the mast at suitable height with the two M6
screws and the mounting clamp.
3 With the local mains voltage level other than 230 VAC, make
proper reselection with the jumpers at X2 and X3 (under the
protective cover). Observe the instructions and warnings in the
instruction label inside the unit. Refer to Figure 2.
4 With the mains voltage disconnected enter the mains cable through
the leftmost cable gland and do the input wiring to the X1 (spring
loaded terminals) and Earth (crimp & screw). Tighten the input cable
gland.
5 Enter the output power cable(s) through the rightmost cable
gland(s). For better protection against RF interference, follow the
earthing instructions of the cable shield in Fig. 4. Assure that no
shield mesh gets on the circuit board.
6 Do the output wiring to the X4 removable screw terminal block
(refer to the instruction label). Tighten the output cable gland(s).
7 Carefully reattach the enclosure cover with the four screws.
Linear 160 W Mains Power Supply
Compact size with mast mounting
Outdoor use with IP65 (Nema 4) housing
Slot screw M6x40 DIN 84 A4 2 pcs
Washer A6,4
Spring washer B6
Nut M6 DIN 934
Figure 1. WHP25 mounting
-1
9
9
ø
5
0
DIN 125 A4
DIN 127 A4
DIN 934 A4
X1
ELN
MAINS
INPUT
1.0 - 2.0 A
2AT
F1
Primary
MAINS VOLTAGE SELECTION
100V 115V 200V 215V 230V 245V
X2
X3
WARNING! Improper jumper setting
FUSES
may cause damage.
Secondary
Factory
setting
8AT
(X2, X3)
F2
X4
38VAC
ACout
(RG13H)
NOTE!
Total wire resistance
less than 0.3 ohms
recommended for
WA25 systems.
1
0.9A
3
2
456
24VDC
5.2A
DCout
(WA25)
Figure 2. WHP25 wiring instructions (refer also to label
inside the enclosure)
8
7
TECHNICAL DATA
WHP25
WAV15A
WAA25
MILOS 500
or other AWS
WAC151
Input operating power
Nominal 230 VAC ±10 %, 50/60 Hz, 1.0 A max.
Optional selections 100/115/200/215/245 VAC (±10 %)
Output power
DC output 24.0 ±2.5 VDC, 5.2 A (max.)
AC output 38.0 ±3.0 VAC, 0.9 A (max.)
Fuses
Primary 2 AT replaceable fuse, 5 × 20 mm (F1)
24 V output 8 AT replaceable fuse, 5 × 20 mm (F2)
38 V output 1.8 Amp solid state fuse (R3)
Electrical connections
Cable glands (3) One for input, two for outputs
Input wiring (L, N) Spring loaded terminals (X1)
Input wiring (E) Crimp connector, 2.5 mm2 max.
Output wiring (24 V, 38 V) 8-pin removable screw terminal
1.5 mm2 max. wire dimension
connector, 2.5 mm2 max.
Operating temperature 60 ... +55 °C
Storage temperature 60 ... +70 °C
Humidity Non-condensing
Material
Housing Cast aluminium, painted grey
Mounting clamp AlMgSi, grey anodized
Ingress protection IP65 (Nema 4)
Dimensions
Unit 220 × 120 × 81 mm (w × h × d)
(cable glands add 23 mm to height)
Mounting To a Ø 99 105 mm pole mast tube
with standard mounting clamp
Weight 3.6 kg
(X4/4, 5 6, 7)
(X4/1 2)
Cable Ø 7 10 mm
81
Mounting holes (4 pcs) at the bottom of the enclosure
82
120
143
Mains Input Cable
Figure 3. WHP25 dimensions
220
204
MAINS POWER SUPPLY
Power Output Cable
ISO 9001
CERTIFIED
QUALITY
SYSTEM
Head Office:
VAISALA Oy
PL 26, FIN-00421 Helsinki
FINLAND
Phone (int.): (+358 0) 894 91
Telefax: (+358 0) 894 9227
Telex: 122832 vsala fi
Enter the shield through the two
washers and squeeze part of it
evenly between those.
CAUTION:
The shield mesh must not touch
the circuit board or its components.
Make sure no pieces of mesh or
other metal parts get to the board.
Figure 4. Earthing of power output cable shield
Ref. WHP25-U146en-1.1
Figure 5. Typical installation with a Heated Wind Sensor
System
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