vaisala SPH10 User Guide

Installation and Maintenance

SPH10 Static Pressure Head

INTRODUCTION

Vaisala model SPH10 Pressure Head provides an effective
elimination of pressure variations in the barometer due to the
wind. The SPH10 is easy to clean and maintain. It can be
integrated directly with the Vaisala PTB210 barometer. To other
barometers the SPH10 can be connected with pressure tubing.

ASSEMBLING

Mounting plate

Pole

Threaded nipple and the gasket (R1/4
parallel thread)

Fixing screws

– Eliminates effectively wind

disturbances from pressure
measurements

– Adaptable to many barometers,

directly to Vaisala PTB210

1. Screw the lower bar to the threaded sleeve of the lower

plates (with 6 holes)

2. Screw the upper bar (with mounting plate) to the threaded

sleeve of the upper plates

MOUNTING

Select an open location, prefereably a place higher than the
surroundings, with no buildings or trees nearby. Attach the
SPH10 to a horizontal pole using a mounting plate. A suitable
pole is Vaisala sensor mast, type DKP12. However, any other
horizontal pole with two screws (M6) in a distance of 41 mm can
be used.
NOTE! The recommended distance of the SPH10 from the
vertical pole should be at least 1.5 m.

1. Loosen the two fixing screws of the pole and fix the SPH10

into the pole as indicated in Figure 1.

2. Attach the SPH10 by tightening the screws. (The pressure

Head is removed by loosening the two screws).

CONNECTION TO THE VAISALA PTB210
(see figure 2)

1. Detach the threaded nipple and the gasket (see figure 1).

2. Place the O-ring into the barometer groove.

3. Attach the PTB210 to the SPH10 with two fixing screws.

Upper bar

Upper bar

Threaded sleeve

Lower bar

Figure 1. SPH10 Static Pressure Head.

Upper plate
Lower plate

PTB210
Barometer

Fixing screw with a
washer (included in
the PTB210)

O-ring (included in
the PTB210)

– Durable and easy to clean

CONNECTION TO THE OTHER BAROMETERS

Connect the barometer to the threaded nipple (figure 1) by using
a plastic tube with an inner diameter of 4 mm.

Figure 2. PTB210 barometer connection.

U440en-1.1

N

TECHNICAL DATA

Property Description / value

Materials

Plates Polycarbonate
Bars Offshore Aluminium

Mounting with 2 bolts

(M6 x minimum 20 mm)

Weight 800 g
Hose connection barbed fitting for 4 mm I.D. hose

Operating conditions

or Rp1/4 thread (parallel)

-60°C...+ 80°C

GUARANTEE

Vaisala issues a guarantee for the material and
workmanship of this product under normal operating
conditions for one (1) year from the date of delivery.
Exceptional operating conditions, damage due to careless
handling and misapplication will void the guarantee.

Vaisala SSD Service Centres

Vaisala SSD Service, Vanha Nurmijärventie 21, FIN-01670

Vantaa, FINLAND, Phone: [phone], Fax [phone]
2295
Vaisala KK, 42 Kagurazaka 6-Chome, Shinjuku-Ku, Tokyo 162­0825, JAPAN, Phone: [phone], Fax [phone]
Vaisala Inc., 100 Commerce Way, Woburn, MA 01801-1068, USA
Phone: [phone], Fax [phone]

Internet: http://www.vaisala.com

Technical support: [e-mail]

MAINTENANCE

Protective wire net

Lower plate

Threaded sleeve

ut

Lower bar

Figure 3. Detaching the lower plate for cleaning.

Cleaning the SPH10 is done by detaching the lower bar and the
lower plate. The barometer can be in place while cleaning the
plates. Please, follow the instructions below:

1. Unscrew the lower bar and detach it.

2. Open the self-locking nut with a 13 mm spanner.

3. Remove the threaded sleeve and take out the lower plate

and the protective wire net.

4. Clean the plates.

5. Replace the lower plate, the protective wire net and the

threaded sleeve, screw back the nut and the lower bar.

Keep the holes of the lower plate open to allow the water run
out.

DIMENSIONS (in mm)

40

371

22

M6

144

60

151

ø22

41

6.5

www.vaisala.com Ref. U440en-1.1

200

38