General information

Product type designation

SM 1232 AQ 2x14 bit

SM 1232 AQ 4 x 14bit

Supply voltage

Rated value (DC)

• ● 24 V DC

Yes

Yes

Input current

Current consumption, typ.

45 mA

45 mA

from backplane bus 5 V DC, typ.

80 mA

80 mA

Power loss

Power loss, typ.

1.5 W

1.5 W

Analog outputs

Number of analog outputs

2; Current or voltage

4; Current or voltage

Output ranges, voltage

• ● -10 V to +10 V

Yes

Yes

Output ranges, current

• ● 0 to 20 mA

Yes

Yes

Load impedance (in rated range of output)

• ● with voltage outputs, min.

1 000 ?

1 000 ?

• ● with current outputs, max.

600 ?

600 ?

Analog value generation

Measurement principle

Differential

Differential

Integration and conversion time/resolution per channel

• ● Resolution (incl. overrange)

Voltage: 14 bits; Current : 13 bits

Voltage: 14 bits; Current : 13 bits

• ● Integration time, parameterizable

Yes

Yes

• ● Interference voltage suppression for interference frequency f1 in Hz

40 dB, DC to 60 V for interference frequency 50 / 60 Hz

40 dB, DC to 60 V for interference frequency 50 / 60 Hz

Errors/accuracies

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

25 °C ±0.3%, to 55 °C ±0.6% total measurement range

25 °C ±0.3%, to 55 °C ±0.6% total measurement range

Basic error limit (operational limit at 25 °C)

• ● Voltage, relative to output area, (+/-)

0.3 %

0.3 %

• ● Current, relative to output area, (+/-)

0.3 %

0.3 %

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

• ● Common mode voltage, max.

12 V

12 V

Interrupts/diagnostics/status information

Alarms

Yes

Yes

Diagnostic functions

Yes

Yes

Alarms

• ● Diagnostic alarm

Yes

Yes

Diagnostic messages

• ● Monitoring the supply voltage

Yes

Yes

• ● Wire-break

Yes

Yes

• ● Short-circuit

Yes

Yes

Diagnostics indication LED

• ● for status of the outputs

Yes

Yes

• ● for maintenance

Yes

Yes

Degree and class of protection

Degree of protection acc. to EN 60529

• ● IP20

Yes

Yes

Standards, approvals, certificates

CE mark

Yes

Yes

CSA approval

Yes

Yes

FM approval

Yes

Yes

RCM (formerly C-TICK)

Yes

Yes

Highest safety class achievable in safety mode

• ● SIL acc. to IEC 61508

none

none

Ambient conditions

Free fall

• ● Fall height, max.

0.3 m; five times, in product package

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

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

• ● min.

-20 °C

-20 °C

• ● max.

60 °C

60 °C

Ambient temperature during storage/transportation

• ● min.

-40 °C

-40 °C

• ● max.

70 °C

70 °C

Air pressure acc. to IEC 60068-2-13

• ● Operation, min.

795 hPa

795 hPa

• ● Operation, max.

1 080 hPa

1 080 hPa

• ● Storage/transport, min.

660 hPa

660 hPa

• ● Storage/transport, max.

1 080 hPa

1 080 hPa

Relative humidity

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

95 %

95 %

Pollutant concentrations

• — SO2 at RH < 60% without condensation

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

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

Connection method

required front connector

Yes

Yes

Mechanics/material

Enclosure material (front)

• ● Plastic

Yes

Yes

Dimensions

Width

45 mm

45 mm

Height

100 mm

100 mm

Depth

75 mm

75 mm

Weights

Weight, approx.

180 g

180 g