Ex i input

Input signal

0/4 ... 20 mA with HART

Functional range

0 ... 24 mA

Max. input current for mA sources

50 mA

Transmitter supply voltage

≥ 16 V at 20 mA (for 2-, 3-wire)

Supply voltage residual ripple

≤ 25 mV_eff

No-load voltage

≤ 26 V

Short-circuit current

≤ 35 mA

Input resistance (AC impedance HART)

≈ 500 Ω

Input resistance for mA sources

30 О©

Communication signal (for 2-wire transmitters)

Bidirectional HART transmission, 0.5 kHz ... 30 kHz

Output

Output signal

0/4 ... 20 mA with HART

Load resistance R_L

0 ... 600 О© (terminal 1+/2-)

0 ... 379 О© (terminal 3+/2)

(with internal 221 О© resistance for HART)

Residual ripple

≤ 40 μA_eff

No-load voltage

≤ 15.5 V

Communication signal

Bidirectional HART transmission, 0.5 kHz ... 30 kHz

Settling time (10% ... 90%)

≤ 25 ms

Transmission characteristics
Input/output

1:1

0 ... 20 mA в†’ 0 ... 20 mA,
4 ... 20 mA в†’ 4 ... 20 mA

Measuring accuracy

Accuracy, typical data expressed as % of calibrated span at U_N, 23 °C

Linearity error

≤ 0.1%

Offset error

≤ 0.1%

Temperature influence

≤ 0.1%/10 K

Power supply effect within voltage range

≤ 0.01%

Load resistance effect

≤ 0.02%

Rated conditions

Degree of protection of enclosure

IP30

Degree of protection of terminals

IP20

Ambient conditions

• Ambient temperature

-20 °C ... +60 °C/+70 °C (‑4 ... +140/+158 °F)
(refer to Operating Instructions)

• Storage temperature

-40 °C ... +80 °C (‑40 ... +176 °F)

• Relative humidity (no condensation)

≤ 95%

Electromagnetic compatibility

Checked according to following standards and regulations:
EN 61326-1 Use in the industrial environment

Design

Screw terminals

• One-wire connection

• Rigid

0.2 ... 2.5 mm² (0.00031 ... 0.0039 in²)

• Flexible

0.2 ... 2.5 mm² (0.00031 ... 0.0039 in²)

• Flexible with end ferrules (without/with plastic ferrule)

0.25 ... 2.5 mm² (0.00039 ... 0.0039 in²)

• Two-wire connection

• Rigid

0.2 ... 1 mm² (0.00031 ... 0.00155 in²)

• Flexible

0.2 ... 1.5 mm² (0.00031 ... 0.0023 in²)

• Flexible with end ferrules

0.25 ... 1 mm² (0.00039 ... 0.00155 in²)

Weight

Approx. 160 g (0.35 lb)

Type of installation

On DIN rail according to EN 50022 (NS35/15; NS35/7.5)

Mounting position

Vertical or horizontal

Enclosure material

PA 6.6

Fire protecting class (UL-94)

V0

Auxiliary power

Rated voltage U_N

24 V DC

Voltage range

18 ... 31.2 V

Residual ripple within voltage range

≤ 3.6 V_SS

Rated current (U_N, 20 mA)

70 mA

Power consumption (U_N, 20 mA)

1.7 W

Power loss (at U_N, R_L = 250 О©)

1.3 W

Operation indicator

Green "PWR" LED

Reverse polarity protection

Yes

Undervoltage monitoring

Yes (no faulty module/output states)

Electrical isolation

• Test voltage according to EN 60079-11

• Ex intrinsic safety input to output

1.5 kV AC

• Ex intrinsic safety input to auxiliary power

1.5 kV AC

• Ex intrinsic safety input to fault signaling contact

1.5 kV AC

• Test voltage according to EN 50178

• Output to auxiliary power

350 V AC

• Error contact to auxiliary power and output

350 V AC

Error detection Ex i input

• Open circuit

< 2 mA

• Short-circuit

> 22 mA

• Output characteristics

= Input signal

• Output current at I_E = 0

I_A = 0 mA

Error detection output

• Open circuit

< 2 mA

Error messaging Ex i input/output

• Settings (LF switch)

Activated/deactivated

• Error indication

Red "LF" LED

Error messaging and power supply failure

• Contact (30 V/100 mA), closed to ground in event of fault
• pac-Bus, floating contact (30 V/100 mA)

Certificates and approvals

Explosion protection ATEX

• EC type-examination certificate

DMT 03 ATEX E 010 X

• Degree of protection

II 3 (1) G Ex nA nC [ia] IIC T4

II (1) D [Ex iaD]

Installation

In Zone 2, Div. 2 and in the safe area

Other approvals

USA (FM)
Canada (CSA)
Marine (DNV)

Safety specifications (CENELEC)

• Max. voltage U_o

27 V

• Max. current I_o

88 mA

• Max. power P_o

576 mW

• Max. connectable capacitance C_o for IIC/IIB

90 nF/705 nF

• Max. connectable inductance L_o for IIC/IIB

2.3 mH/14 mH

• Internal capacitance C_i and inductance L_i

Negligible

• Insulation voltage U_m

253 V

• When connecting mA sources:

• Max. output voltage U_o

4.1 V

• Max. connectable voltage U_i

30 V

• Max. connectable current I_i

100 mA

• Internal capacitance Ci and inductance L_i

Negligible

• Additional information and value combinations

See Certifications