Field Mounted HART Temperature Transmitter – PR Electronics 7501

Features

  • 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
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PR 7501 is a HART 7 field mounted temperature transmitter with optional high-definition display. Flexible direct and remote mounting methods make the PR 7501 suitable for a wide range of installation types, whilst numerous input and configuration options meet the demands of a variety of applications. The device is also HART 5 compatible for use in legacy systems.

High definition 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 20, 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.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -40°C to +85°C (with silicone O-ring)
Operating temperature -20°C to +85°C (with FKM Oring)
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
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
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
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
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
Updating time 440 ms
HART protocol revisions HART 7 and HART 5
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
EAC TR-CU 020/2011
APPROVALS
EU RO Mutual Recognition Type
Approval MRA0000009
ATEX DEKRA 15 ATEX 0058 X
IECEx IECEx DEK 15.0039 X
c FM us FM16US0009X /
FM16CA0010X
CSA 70024231
INMETRO DEKRA 15.0014 X
NEPS GYJ15.1336X, GYJ15.1337X
and GYJ15.1338X
EAC Ex RU C-DK.HA65.B.00355/19
SIL Hardware assessed for use in
SIL applications

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PR Electronic 7501 Field mounted HART temperature transmitter-DpstarGroup

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