Input

Resistance thermometer

Measured variable

Temperature

Sensor type

PT100 to IEC 60751

Characteristic curve

Temperature-linear

Type of connection

2-, 3- or 4-wire circuit

Resolution

14 bit

Measuring accuracy

< 0.25 °C (0.45 °F)

Repeatability

< 0.1 °C (0.18 °F)

Measuring current

Approx. 0.4 mA

Measuring cycle

< 0.7 s

Measuring range

-60 ... +160 °C (-76 ... +320 °F)

Span

25 ... 220 °C (45 ... 396 °F)

Unit

°C or °F

Offset

Programmable:
-100 ... +100 °C (-180 ... +180 °F)

Line resistance

Max. 20 О© (total from feeder and return conductor)

Noise rejection

50 and 60 Hz

Output

Output signal

4 ... 20 mA, two-wire

Auxiliary power

8.5 ... 36 V DC (30 V for Ex)

Max. load

(U_aux – 8.5 V)/0.023 A

Overrange

3.6 ... 23 mA, infinitely adjustable (factory setting: 3.84 ... 20.5 mA)

Error signal (in the event of sensor breakage)

3.6 ... 23 mA, infinitely adjustable (factory setting: 3.6 mA or 22.8 mA)

Damping time

0 ... 30 s

Protection

Against reverse polarity

Resolution

12 bit

Accuracy at 23 °C (73.4 °F)

< 0.1 % of span

Temperature effect

< 0.13 %/10 °C (0.13 %/18 °F)

Effect of auxiliary power

< 0.02 % of span/V

Effect of load impedance

< 0.055 % of max. span/100 О©

Long-term drift

• < 0.025 % of max. span in the first month
• < 0.035 % of max. span after one year
• < 0.05 % of max. span after 5 years

Ambient conditions

Ambient temperature range

-40 ... +85 °C (-40 ... +185 °F)

Storage temperature range

-40 ... +85 °C (-40 ... +185 °F)

Relative humidity

98 %, with condensation

Electromagnetic compatibility

According to EN 61326 and NAMUR NE21

Design

Weight

42 g

Dimensions

See dimensional drawing

Material

316L stainless steel

Degree of protection according to IEC 60529

• Enclosure

IP67

Software requirements for SIPROM T

PC operating system

Windows ME, 2000 and XP; also Windows 95, 98 and 98SE, but only in connection with RS232 modem

Factory setting:

• Pt100 (IEC 751) with 3-wire system
• Measuring range: 0 ... 100 °C (32 ... 212 °F)
• Error signal in the event of sensor breakage: 22.8 mA
• Sensor offset: 0 °C (0 °F)
• Damping 0.0 s