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Loop-powered indicator for 4...20 mA or HART®

The RIA15 loop-powered process indicator from Endress+Hauser is equipped with 4...20 mA or with HART® protocol. In the HART® version, up to 4 measured values of one sensor can be displayed alternately on the display. For this purpose the indicator can be set as Primary or Secondary HART® Master and actively query the values. The low voltage drop of < 1 V (< 1.9 V for HART®) proves to be a great advantage in Ex applications where only a limited voltage is usually available.

More Information
Contact typeM16 cable gland (optional)
Measurement temperature range25 to 60 °C (-13 to 140 °F)
Influence of ambient temperature: < 0.02 %/K (0.01 %/°F) of measuring range
Measuring range4...20 mA (scalable, reverse polarity protection) Max. Input current 200 mA
Display typeLCD 17 mm (0.67\)
Accuracy±0,1 %
Input4...20 mA current signal or HART® signal
Output2 x Analog (I, U)
1 x transmitter power supply
Relay: 2 x changeover contacts, 1 x open collector
Resolution> 13 Bit
DimensionsPanel mount housing:
96 x 48 x 41.5 mm
(3.78" x 1.89" x 1.64")
Field housing made of plastic or aluminium:
131 x 81.5 x 55.5 mm
(5.16" x 3.21" x 2.19")
Housing materialPanel mounting housing Front: Aluminium Rear panel: Polycarbonate PC field housing Aluminium or plastic (PBT with steel fibres, antistatic)
Degree of protectionPanel housing
IP65 at front, IP20 at rear
field housing
Aluminium housing: Protection class IP66/67, NEMA 4x
Plastic housing: Protection class IP66/67
Power supplyNo external supply required; voltage drop ≤1 V (HART® ≤1.9 V)
Hazardous approvalsATEX
Other Approvals/ CertificationMarine approval (optional)
SIL non-interacting according to EN61508 (optional)
IEC 61010-1: 2010 cor 2011 (Safety requirements for electrical equipment for measurement, control and laboratory use)
IEC 60529: Degrees of protection provided by enclosures (IP code)
Ambient temperature range-40 to 60 °C (-40 to 140 °F)
Storage temperature-40 to 85 °C (-40 to 185 °F)
Mounting typePanel housing: horizontal, required panel cut-out 45x92 mm (1.77x3.62 in)
Field housing: wall mounting or by means of optional mounting bracket to a pipe with up to 2 " diameter, cable entries must point downwards, optional: weather protection roof protects device from weather influences
Reverse polarity protectionYes
Overvoltage protectionOvervoltage protection category 2
Electromagnetic compatibility (EMC)Immunity to interference:
According to IEC61326 Industrial environment / NAMUR NE 21
Maximum measurement error < 1 % of MB
Interference emission:
According to IEC61326 Class B
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