Vaisala SPH20 User Manual
Page 2
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www.vaisala.com
Ref.
M010016EN-B
TECHNICAL DATA
Property Description
/
Value
Materials
Plates
Polycarbonate
Bars
Offshore Aluminium
Connection box
Polycarbonate (IP65)
Weight 1360
g
Mounting
2 bolts (M6 x min 20 mm)
Hose connection
barbed fitting for 4 mm I.D.
hose or Rp1/4 thread
Electrical connections M12
connector
Power supply
12 V (default)
24 V (with changed wiring)
Temperatures at which the
heating turns ON/OFF
ON
OFF
(possibility for own heating control
as well)
+4
C ( 3 C)
+13
C ( 3 C)
Power consumption during
heating
about 70 W
Operating temperature
-60
C...+80 C
HEATING CONTROL
The thermostat controlled heating elements switch on when
temperature decreases down to +4 °C (42 °F). The heating
switches off when temperature increases up to +13 °C (55 °F).
If an own heating control is needed, the thermostat can be
shunted as follows:
1. Open the electrical enclosure cover
2. Remove the connecting board (Figure 3) by unscrewing the
3 screws.
3. Detach the wires from the thermostat.
4. Join the detached wires.
5. Replace the connecting board and close the cover.
CAUTION
Surface temperature of a heated plate can be
60
C (140 F)!
MAINTENANCE
To clean the plates, blow pressurized air to the opening between
the plates.
Figure 3 Connecting Board
CHANGING THE POWER SUPPLY WIRING
To change the power supply wiring from 12 V to 24 V:
1. Open the electrical unit enclosure.
2. Disconnect white and brown wires from the + terminal (12
V).
3. Disconnect blue and black wires from the - terminal (12 V).
4. Connect the white and brown wires to + terminal (24 V).
5. Connect the blue and black wires to - terminal (24 V).
WARRANTY
Visit our Internet pages for standard warranty terms and
conditions:
TECHNICAL SUPPORT AND PRODUCT
RETURNS
For technical questions, contact the Vaisala technical support by
e-mail at
If the product must be returned for service, see
.
For contact information of Vaisala Service Centers, see
DIMENSIONS
All dimensions in mm.