Field mounted HART temperature transmitter

 

7501

 

  • RTD, TC, Ohm, and bipolar mV input and analog output
  • High definition local operator interface (LOI) with 3 optical buttons
  • Selectable red or white backlight
  • Ex d explosion proof / flame proof in aluminum or 316 stainless steel version
  • HART 7 functionality with HART 5 compatibility
Ex Iec Iecex Fmapprovedcus CSA Inmetro Dekra NEPSI Dnv Eu Ro Eac Ex Mpa EAC UKCA CE Pr Rohs3
  1. Overview + -

  2. Technical details + -

  3. Accessories + -

High defintion display

  • 0, 90, 180, & 270 degree position adjustments.
  • Monitoring, programming and diagnostics view.
  • Extensive diagnostics with flashing red or white backlight
  • Supports 7 languages.

Local operator interface (LOI)

  • 3 optical buttons; up, down and enter.
  • Dynamically adaptive to wear or accumulation of dirt.
  • Immune to interference from ambient light sources.
  • Useable with or without gloves.

Configuration

  • From the LOI through PR guided menu.
  • PReset and HART modem.
  • HHC, DCS or AMS via HART.

Mounting / installation

  • For installation in zone 0, 1, 2 and zone 21, 22 and in Class 1, Division 1 and 2 applications.
  • Hardware assessed for use in SIL applications.
  • Mounting on 1.5”–2” pipe bracket or on wall / bulkhead.

Application

  • Linearized temperature measurement with TC and RTD sensors e.g. Pt100 and Ni100.
  • HART communication and 4...20 mA analog PV output for individual, difference or average temperature measurement of up to two RTD or TC input sensors.
  • Conversion of linear resistance to a standard analog current signal, e.g from valves or Ohmic level sensors.
  • Amplification of bipolar mV signals to standard 4...20 mA current signals.
  • Up to 63 transmitters (HART 7) can be connected in a multidrop communication setup.

Technical characteristics

  • NAMUR NE43 and NE89.
  • HART protocol revision can be changed by user configuration to either HART 5 or HART 7 protocol.

Approvals & Certificates


ATEX certificate

IECEx certificate

CSA certificate

FM certificate

INMETRO certificate

NEPSI certificate

SIL declaration

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

FMEDA report

HART certificate

Paint specifications

PR default configurations

Download Software

Environmental Conditions

Operating temperature -40°C to +85°C (with silicone O-ring) -20°C to +85°C (with FKM O-ring)
Storage temperature -40°C to +85°C
Calibration temperature 20...28°C
Relative humidity 0...100% RH (condensing)
Protection degree IP54 / IP66 / IP68 / type 4X
Corrosion class 7501AxxxBxxxx / durability C5-I/M / 5...15 years

Mechanical specifications

Dimensions Ø 110 mm
Dimensions (HxWxD), aluminum 109.3 x 145 x 126 mm
Dimensions (HxWxD), stainless steel 107.4 x 145 x 124 mm
Weight approx., aluminum / stainless steel 1.3 / 2.8 kg
Wire size 0.13 x1.5 mm2 / AWG 26...16 stranded wire
Screw terminal torque 0.4 Nm
Vibration IEC 60068-2-6
2...25 Hz ±1.6 mm
25...100 Hz ±4 g
Display resolution 96 x 64 pixels
Number of digits 5
Backlight Selectable ON/OFF
Backlight color Selectable white or red

Common specifications

Supply

Supply voltage, DC: Ex ia, intrinsically safe 10 (12 - with backlight)...30 VDC
Supply voltage, DC: Other 10 (12 - with backlight)...35 VDC

Isolation voltage

Isolation voltage, test / working 1.5 kVAC / 50 VAC

Response time

Response time (programmable) 1...60 s
Signal / noise ratio > 60 dB
Programming HART
Start-up time, transmitter to display Max. 5 s
Long-term stability, better than ±0.1% of span / year
Accuracy Better than 0.05% of selected range
Signal dynamics, input 22 bit
Signal dynamics, output 16 bit
EMC immunity influence < ±0.1% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span

Input specifications

Common input specifications

Max. offset 50% of selected max. value

RTD input

RTD type Pt50/100/200/500/1000; Ni50/100/120/1000
Cable resistance per wire 5 Ω (up to 50 Ω per wire is possible with reduced measurement accuracy)
Sensor current Nom. 0.2 mA

Linear resistance input

Linear resistance min....max. 0 Ω...7000 Ω

TC input

Thermocouple type B, E, J, K, L, N, R, S, T, U, W3, W5, LR
Cold junction compensation (CJC) Constant, internal or external via a Pt100 or Ni100 sensor

Voltage input

Measurement range -800...+800 mV
Min. measurement range (span) 2.5 mV
Input resistance 10 MΩ

Output specifications

Current output

Signal range 4…20 mA
Min. signal range 16 mA
Load (@ current output) ≤ (Vsupply - 10) / 0.023 [Ω]
Load resistance, with backlight ≤ (Vsupply - 12) / 0.023 [Ω]
Sensor error indication Programmable 3.5…23 mA
NAMUR NE43 Upscale/Downscale 23 mA / 3.5 mA

Common output specifications

Updating time 440 ms
HART protocol revisions HART 7 and HART 5

Observed authority requirements

EMC 2014/30/EU & UK SI 2016/1091
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 DEKRA 15ATEX0058X
IECEx IECEx DEK 15.0039 X
c FM us FM16US0009X / FM16CA0010X
CSA 70024231
INMETRO DEKRA 23.0012 X
NEPSI GYJ20.1630X
EU RO MR Type Approval MRA0000009
EAC Ex EAEU KZ 7500361.01.01.08756
SIL Hardware assessed for use in SIL applications
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