General information

Product type designation

SB1231 AI 1xRTD

Supply voltage

Rated value (DC)

• ● 24 V DC

Yes

Input current

Current consumption, typ.

5 mA

from backplane bus 5 V DC, typ.

20 mA

Power loss

Power loss, typ.

0.5 W

Analog inputs

Number of analog inputs

1; Resistance thermometer

permissible input voltage for current input (destruction limit), max.

± 35 V

Technical unit for temperature measurement adjustable

Degrees Celsius/degrees Fahrenheit

Input ranges

• ● Voltage

Yes

• ● Current

No

• ● Thermocouple

No

• ● Resistance thermometer

Yes; Platinum (Pt)

• ● Resistance

Yes; 150 Ω, 300 Ω, 600 Ω

Input ranges (rated values), resistance thermometer

• ● Pt 100

Yes

• ● Pt 1000

Yes

• ● Pt 200

Yes

• ● Pt 500

Yes

Input ranges (rated values), resistors

• ● 0 to 150 ohms

Yes

• ● 0 to 300 ohms

Yes

• ● 0 to 600 ohms

Yes

Thermocouple (TC)

Temperature compensation

• — parameterizable

No

Analog outputs

Number of analog outputs

0

Analog value generation for the inputs

Measurement principle

integrating

Integration and conversion time/resolution per channel

• ● Resolution with overrange (bit including sign), max.

15 bit; + sign

• ● Integration time, parameterizable

No

• ● Interference voltage suppression for interference frequency f1 in Hz

85 dB at 10 / 50 / 60 / 400 Hz

Errors/accuracies

Temperature error (relative to input range), (+/-)

25 °C ±0.1%, to 55 °C ±0.2% total measurement range

Repeat accuracy in steady state at 25 °C (relative to output range), (+/-)

0.05 %

Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency

• ● Common mode interference, min.

120 dB

Interrupts/diagnostics/status information

Alarms

Yes

Diagnostic functions

Yes; Can be read out

Alarms

• ● Diagnostic alarm

Yes

Diagnostic messages

• ● Wire-break

Yes

Diagnostics indication LED

• ● for status of the inputs

Yes

• ● for maintenance

Yes

Degree and class of protection

Degree of protection acc. to EN 60529

• ● IP20

Yes

Standards, approvals, certificates

CE mark

Yes

CSA approval

Yes

FM approval

Yes

RCM (formerly C-TICK)

Yes

Ambient conditions

Free fall

• ● Fall height, max.

0.3 m; five times, in product package

Ambient temperature during operation

• ● permissible temperature range

-20 °C to +60 °C horizontal mounting, -20 °C to 50 °C vertical mounting, 95% humidity, non-condensing

• ● min.

-20 °C

• ● max.

60 °C

Ambient temperature during storage/transportation

• ● min.

-40 °C

• ● max.

70 °C

Air pressure acc. to IEC 60068-2-13

• ● Operation, min.

795 hPa

• ● Operation, max.

1 080 hPa

• ● Storage/transport, min.

660 hPa

• ● Storage/transport, max.

1 080 hPa

Relative humidity

• ● permissible range (without condensation) at 25 °C

95 %

Pollutant concentrations

• — SO2 at RH < 60% without condensation

S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free

Connection method

required front connector

Yes

Mechanics/material

Enclosure material (front)

• ● Plastic

Yes

Dimensions

Width

38 mm

Height

62 mm

Depth

21 mm

Weights

Weight, approx.

35 g