FSS-SMT Series

2

sensing.honeywell.com

Table 1. Performance Characteristics (At 10 ±0.01 Vdc, 25 °C [77 °F].)

1

Characteristic

Unit

FSS005WNSX

FSS010WNSX

FSS015WNSX

FSS020WNSX

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max.

Force sensing range

N

0 to 5

0 to 10

0 to 15

0 to 20

Excitation

2

Vdc

3.3

10

12.5

3.3

10

12.5

3.3

10

12.5

3.3

10

12.5

Null offset

3

mV

-30

0

+30

-30

0

+30

-30

0

+30

-30

0

+30

Null shift

4

(25 to 0°, 25 to 50° C)

mV



±0.5





±0.5





±0.5





±0.5



Span

5

mV

330

360

390

330

360

390

330

360

390

330

360

390

Linearity (BFSL)

6

% span



±0.5





±0.5





±0.5





±0.5



Sensitivity

7

mV/V/N

6.6

7.2

7.8

3.3

3.6

3.9

2.2

2.4

2.6

1.65

1.8

1.95

Sensitivity shift

8

(25 °C to 0°, 25 °C to 50 °C)

% span



±5.0





±5.0





±5.0





±5.0



Repeatability

9

% span



±0.2





±0.2





±0.2





±0.2



Response time

(10 %FS to 90 %FS)

ms



0.1

0.5



0.1

0.5



0.1

0.5



0.1

0.5

Input resistance

kΩ

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

Output resistance

kΩ

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

4.0

5.0

6.0

Plunger deflection

µm



26





28





33





30



Overforce

10

N





15





30





45





60

Notes:

1.

All force-related specifications are established using dead weight or compliant force.

2.

The range of voltage excitation which can be supplied to the product to produce an output which is proportional to

force but due to ratiometricity errors may not remain within the specified performance limits. Non-compensated

force sensors, excited by constant current (1.5 mA) instead of voltage, exhibit partial temperature compensation of

span.

3.

The output signal obtained when the zero force is applied to the sensor. Also known as "null" or "zero".

4.

The change in the null resulting from a change in temperature. It is not a predictable error as it can shift up and

down from unit to unit. Change in temperature causes the entire output curve to shift up or down along the voltage

axis.

5.

The algebraic difference between output signals measured at the upper and lower limits of the operating force range.

Also known as "full scale output" or simply "span".

6.

The maximum deviation of product output from a straight line fitted to output measured over the operating force

each of the points from the straight line.

7.

The ratio of output signal change to the corresponding input force change. Sensitivity is determined by computing

the ratio of span to the specified operating force range multiplied by the supply voltage being used.

8.

The maximum deviation in sensitivity due to changes in temperature over the operating temperature range, relative to

sensitivity measured at 25 °C.

9.

The maximum difference between output readings when the same force is applied consecutively, under the same

operating conditions, with force approaching from the same direction within the operating force range.

to the operating force range. Exposure to higher forces may cause permanent damage to the product. Unless

otherwise specified, this applies to all temperatures within the operating temperature range.

CAUTION

EXCEEDING PRODUCT

OVERFORCE RATING

 Ensure the overforce

ratings given in Table

1 are not exceeded

during any phase of

sensor assembly to

the board, as well as

during the use of the

sensor in the

application.

Failure to comply with

these instructions may

result in product

damage.

Table 2. Environmental Specifications

Characteristic

Parameter

Operating temperature

1

-40 °C to 85 °C [-40 °F to 185 °F]

Shock

qualification tested to 150 g

Vibration

qualification tested to 0 to 2 kHz, 20 g sine

MCTF

20 million at 25 °C [77 °F]

Output ratiometric

within supply range

Notes:

1.

The temperature range over which the product may safely be exposed without excitation or force applied. Under these conditions the product will

remain in specification after excursion to any temperatures in this range. Exposure to temperatures beyond this range may cause permanent damage to

the product.

2.

MCTF is a basic measure of reliability for a non-repairable device. It is the mean number of cycles to maximum operating force over which a sensor can

be expected to operate until failure. The mean value is determined statistically from a probability distribution for failures based upon test data. MCTF

may vary depending on the specific application in which a sensor is utilized.