3331
3331 800X600px
3331 Block 800X600px EN
3331
3331 800X600px
3331 Block 800X600px EN

Temperature converter, loop-powered - isolated

 

3331

 

  • Excellent accuracy, better than 0.05% of span
  • Slimline housing of 6.1 mm
  • Excellent EMC performance and 50/60 Hz noise suppression
  • Selectable < 30 ms / 300 ms response time
  • Pre-calibrated temperature ranges selectable via DIP-switches
Zone2 Ex Iec Iecex Zone2 Fmapprovedcus Zone2 UL List DNV Eac Ex Mpa EAC UKCA CE Pr Rohs Guarantee

  1. Overview + -

  2. Technical details + -

  3. Accessories + -

  4. Order and delivery + -

  5. Why choose PR + -

Application

  • The 3331 temperature converter measures a standard Pt100, TC J and K temperature sensor, and provides an isolated passive analog current output signal.
  • High 2 port isolation provides surge suppression and protects the control system from transients and noise.
  • The 3331 can be mounted in the safe area or in Zone 2 / Division 2 areas.
  • Approved for marine applications.

Technical characteristics

  • Flexibly loop powered by 5.5...35 VDC via connectors.
  • < 30 ms fast response time with simultaneous sensor error detection when selected.
  • Selectable 300 ms response time when signal dampening is needed.
  • Selectable internal/external CJC.
  • Excellent conversion accuracy in all available ranges, better than 0.05% of span.
  • Meeting the NAMUR NE21 recommendations, the 3331 provides top measurement performance in harsh EMC environments.
  • The device meets the NAMUR NE43 standard defining out of range and sensor error output values.
  • All terminals are protected against overvoltage and polarity error.
  • High galvanic isolation of 2.5 kVAC.
  • Excellent signal/noise ratio of > 60 dB.

Mounting / installation / programming

  • Selectable DIP-settings for easy configuration of more than 1000 factory calibrated measurement ranges.
  • The narrow 6.1 mm housing allows up to 163 units to be mounted per meter of DIN rail, without any air gap between units.
  • Wide ambient temperature range of -25...+70°C.

Data sheet & Manuals

Data sheet
Manuals
Manuals in Russian

Approvals & Certificates

ATEX certificate
IECEx certificate
UKEX certificate
FM certificate
UL certificate
DNV marine certificate
EAC declaration
EAC Ex certificate
Metrology Pattern Approval (MPA), Russia

Supplementary documentation

EU Declaration of Conformity
UKCA Declaration of Conformity
CCC statement
EMC data
PR default configurations

Order form

Environmental Conditions

Operating temperature -25°C to +70°C
Storage temperature -40°C to +85°C
Calibration temperature 20...28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP20
Installation in Pollution degree 2 & meas. / overvoltage cat. II

Mechanical specifications

Dimensions (HxWxD) 113 x 6.1 x 115 mm
Weight approx. 70 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13...2.5 mm2 / AWG 26...12 stranded wire
Screw terminal torque 0.5 Nm
Vibration IEC 60068-2-6
2...25 Hz ±1.6 mm
25...100 Hz ±4 g

Common specifications

Supply
Supply voltage 5.5...35 VDC
Max. required power 0.80 W
Internal power dissipation 19 mW...0.8 W

Isolation voltage
Isolation voltage, test / working 2.5 kVAC / 300 VAC (reinforced)
Zone 2 / Div. 2 250 VAC

Response time
Response time (0...90%, 100...10%) < 30 ms / 300 ms (selectable)
Voltage drop 5.5 VDC
Signal / noise ratio Min. 60 dB
Programming DIP-switches
Signal dynamics, input 23 bit
Signal dynamics, output 18 bit
EMC immunity influence < ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span
Incorrect DIP-switch setting identification 3.5 mA

Input specifications

RTD input
Temperature range, Pt100 -200...+850°C
Min. measurement range (span) 10°C
Accuracy: the greater of Better than 0.05% of span or 0.1°C
Temperature coefficient: the greater of 0.02°C/°C or ≤ ±0.01%/°C
Sensor current < 150 µA
Sensor cable resistance < 50 Ω per wire
Effect of sensor cable resistance (3-/4-wire) < 0.002 Ω / Ω
Sensor error detection Yes - selectable via DIP-switch
Broken sensor detection > 800 Ω
Shorted sensor detection < 18 Ω

TC input
Temperature range, TC J -100...+1200°C
Temperature range, TC K -180...+1372°C
Min. measurement range (span) - TC J & K 50°C
Accuracy: the greater of Better than 0.05% of span or 0.5°C
Temperature coefficient: the greater of 0.1°C/°C or ≤ ±0.01%/°C
Sensor cable resistance < 5 kΩ per wire
Cold junction compensation (CJC): Accuracy @ external Pt100 input Better than ±0.15°C
Cold junction compensation (CJC): Accuracy @ internal CJC Better than ±2.5°C
Internal CJC error detection Yes
External CJC error detection Yes - selectable via DIP-switch
Open Thermocouple detection Yes - selectable via DIP-switch

Output specifications

Common output specifications
Updating time 10 ms

Current output
Programmable signal ranges 4...20 and 20...4 mA
Load (@ current output) ≤ (Vsupply - 5.5) / 0.023 [Ω]
Load stability ≤ 0.01% of span / 100 Ω
Sensor error indication 3.5 mA or 23 mA / acc. to NAMUR NE43 or OFF

I.S. / Ex marking

ATEX II 3 G Ex ec IIC T4 Gc
IECEx Ex ec IIC T4 Gc
FM, US Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, AEx nA IIC T4
FM, CA Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, Ex nA IIC T4
EAC Ex 2Ex nA IIC T4 Gc X

Observed authority requirements

EMC 2014/30/EU & UK SI 2016/1091
LVD 2014/35/EU & UK SI 2016/1101
ATEX 2014/34/EU & UK SI 2016/1107
RoHS 2011/65/EU & UK SI 2012/3032
EAC TR-CU 020/2011
EAC Ex TR-CU 012/2011

Approvals

ATEX KEMA 10ATEX0147 X
IECEx KEM 10.0068X
UKEX DEKRA 21UKEX0055X
c FM us FM17US0004X / FM17CA0003X
c UL us, UL 61010-1 E314307
EAC Ex EAEU KZ 7500361.01.01.08756
DNV Marine TAA00001RW

 

Need support to select the right product for your application?

Our sales engineers are ready to help specify the right device to meet your needs.

 

Reach out by phone to get in touch with us straight away – or use the contact form or quick quote function to send your RFQ directly from the website. You’ll get a response within 24 hours on normal business days.

 

You can expect to get a confirmed delivery date via email within 2 days after we have received your order.

 

As soon as your package leaves our warehouse, you’ll receive tracking details via email. And if you have any questions along the way we’re just a phone call or email away.

 

State-of-the-art manufacturing

State-of-the-art manufacturing

Our 8,500 sqm integrated and automated manufacturing campus in Denmark covers the entire value-chain from design and development to manufacturing. It allows us to design and optimize for testing and manufacturing thereby constantly driving quality up and costs down.

 

Dedicated Presales / Aftersales

Dedicated Presale / Aftersales
Our more than 80 dedicated sales engineers can help specify the right device for your application. Backed by our 9 subsidiaries and more than 40 dedicated partners, we are directly accessible in more than 40 countries around the world.

 

Find a PR location close to you

 

Product reliability

Product reliability
Although we’d always like to be top of mind, we recognize our job is mainly to provide peace of mind. Install & Forget® is our way of saying that once installed, our devices will continue to perform even in the toughest environments. And we are not afraid to back that statement up with commitments.

 

Product deployment

Product deployment
Our devices are intuitive and simple to configure. Once installed they visualize rich diagnostics data, allowing the operator to plan preventative maintenance, maximizing process up-time.

 

 

Smart products

Smart products
Many of our devices are designed to accommodate current and future communication enablers, providing the operator with multifunctional capabilities that extends into the future.

 

Check out our range of communication interfaces

 

Smart products

 

3331
3331 800X600px
3331 Block 800X600px EN
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