NSYCCOHY230VID SCHNEIDER, NSYCCOHY230VID Datasheet - Page 64

• Manufacturer Part Number: NSYCCOHY230VID
• Description: HYGROSTAT, CO, 35-95% RH
• Manufacturer: SCHNEIDER

Specifications of NSYCCOHY230VID

• Body Colour: Light Grey
• External Width - Metric: 33mm
• Body Material: Plastic
• Colour: Light Grey
• External Width: 33mm
• Ip/nema Rating: IP20
• Operating Temperature Max: 60°C
• Operating: RoHS Compliant
• Enclosure Material: Thermoplastic
• Rohs Compliant: Yes
• Accuracy: ± 4%
• Accuracy %: 4%
• Airflow: 15 M/seg
• Contact Configuration: CO
• Capacitance: 0µF

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Example of calculation and
selection
Selection and calculation:
Calculation of the required fan:
Data
● Enclosure data
● Location: Placed on the wall
● Material: Painted sheet-steel enclosure
● Thermal power dissipated by the operational components
● Information on temperature and the environment:
Environment: Low pollution and low dust level
250 to 500 m (820.2 to 1640.4 ft), f = 3.3
In order to make the calculation, it is necessary to know the height above sea level
of the installation location:
Height above sea level: 800 m (2624.7 ft)
f = Coefficient relating to the height above sea level (value)
The desired maximum temperature inside (Ts
10 ºC higher than the maximum value expected for the outside (Ti
It is possible to cool the enclosure using the filtered ventilation systems.
100 to 250 m (328.1 to 820.2 ft), f = 3.2
Our example:
Calculation of the useful resistance heater
Our example:
Pd: 950 W
Maximum desired temperature inside the enclosure
Minimum desired temperature inside the enclosure
Maximum temperature dissipated in the enclosure
Minimum temperature dissipated in the enclosure
Height: 2000 mm (78.7 in)
Width:
Depth: 500 mm (19.7 in)
Usage formulas:
Psis = Pd – k  S  (Ts
Flow = f  Psis/ (Td
Pd: Thermal power dissipated by the operational components
S = 1.4  W  (H + D) + 1.8  D  H = 4.6 m
K = Constant defined by the material used to manufacture the enclosure
K = 5.5 W/m
K = 3.5 W/m
K = 3.7 W/m
Psis = 950 – 5.5  4.6  (35 – 25) = 497 W
Flow rate = 3.5  697 / (35 – 25) = 244 m
Selection from the fan quick-selection table
The minimum outside temperature is lower than the desired minimum
temperature inside the enclosure.
It is necessary to install resistance heaters:
Usage formula
W = k  S  (Ts
W = 5.5  4.6 (15 – 10) = 127 W
Selection from the selection guide of the resistance heaters.
1 resistance heater cat. no. NSYCR150WU2C
0 to 100 m (0 to 328.1 ft), f = 3.1
1 fan with standard filter cat. no. NSYCVF300M230PF + 1 grille
with standard filter cat. no. NSYCAG223LPF + 1 thermostat cat. no.
NSYCCOTHO enable a flow rate of 302 m
+ 1 thermostat cat. no. NSYCCOTHC
800 mm (31.5 in)
2
2
2
 °C for a solid sheet-steel enclosure
 °C for a polyester enclosure
 °C for a stainless-steel enclosure
min
-Te
max
min
– Te
max
)
– Te
max
)
max
)
750 to 1000 m (2460.6 to 3280.8 ft), f = 3.5
500 to 750 m (1640.4 to 2460.6 ft), f = 3.4
3
max
/h
2
. According to standard IEC 890.
) the enclosure is
3
/h
................
Te
Te
Te
Te
max
min
max
min
max
: 25 °C
: 25 °C
: 35 °C
: 25 °C
).