3337
 

HART 7 temperature converter, loop-powered

 

3337

 

  • High accuracy, better than 0.05% of span
  • Slimline housing of 6.1 mm
  • Excellent EMC performance
  • Selectable 60 ms / 60 s response time
  • Pre-calibrated temperature ranges selectable via DIP-switches

  1. Overview + -

  2. Technical details + -

  3. Accessories + -

Application

  • The 3337 temperature converter measures a standard Pt100, TC J and K temperature sensor, and provides an isolated passive analog current and HART signal output.
  • High 2 port isolation provides surge suppression and protects the control system from transients and noise.
  • The 3337 can be mounted in the safe area or in Zone 2 / Division 2 areas.
  • Approved for marine applications.

Technical characteristics

  • Flexibly loop powered by 6.2...35 VDC via connectors.
  • A 60 ms fast response time with simultaneous sensor error detection when selected.
  • Selectable internal/external CJC.
  • Excellent conversion accuracy in all available ranges, better than 0.05% of span.
  • Meeting the NAMUR NE21 recommendations, the 3337 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 HART mode with HART 7 revision protocol enables extended device programming.
  • Selectable DIP-mode for easy configuration of more than 1000 factory calibrated measurement ranges with HART read only feature.
  • Selectable HART-mode to enable full HART read-write capability.
  • The narrow 6.1 mm housing allows up to 165 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
HART certificate

EMC data

EMC data

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 6.2...35 VDC
Max. required power 0.80 W
Internal power dissipation 22 mW...0.8 W

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

Response time
HART mode, (0...90%, 100...10%) 60 ms...60 s, programmable
DIP mode, (0...90%, 100...10%) < 60 ms
Voltage drop 6.2 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
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
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 - 6.2) / 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
HART protocol revisions HART 7

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 RU C-DK.HA65.B.00355/19
DNV Marine TAA00001RW
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