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Field mounted HART temperature transmitter
- 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
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.
- 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 2 applications.
- Mounting on 1.5”–2” pipe bracket or on wall / bulkhead.
- 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.
- NAMUR NE43 and NE89.
- HART protocol revision can be changed by user configuration to either HART 5 or HART 7 protocol.
Declaration of Conformity
DNV marine certificate
-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|
|Relative humidity||0...100% RH (condensing)|
|Protection degree||IP54 / IP66 / IP68 / type 4X|
|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|
|2...25 Hz||±1.6 mm|
|25...100 Hz||±4 g|
|Display resolution||96 x 64 pixels|
|Number of digits||5|
|Backlight color||Selectable white or red|
|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, test / working||1.5 kVAC / 50 VAC|
|Response time (programmable)||1...60 s|
|Signal / noise ratio||> 60 dB|
|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|
Common input specifications
|Max. offset||50% of selected max. value|
|RTD type||Pt50/100/200/500/1000; Ni50/100/120/1000|
|Cable resistance per wire (max.)||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|
|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|
|Measurement range||-800...+800 mV|
|Min. measurement range (span)||2.5 mV|
|Input resistance||10 MΩ|
|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
|EU RO Mutual Recognition Type Approval||MRA0000009|
|ATEX 2014/34/EU||DEKRA 15 ATEX 0058 X|
|IECEx||IECEx DEK 15.0039 X|
|FM||FM16US0009X / FM16CA0010X|
|EAC Ex TR-CU 012/2011||RU C-DK.GB08.V.01316|
|INMETRO||DEKRA 15.0014 X|
|NEPSI||GYJ15.1336X, GYJ15.1337X and GYJ15.1338X|
[VIDEO] 7501 Field mounted HART temperature transmitter with display and optical buttons
Easy configuration and diagnostics from the front... The 7501 Field mounted HART temperature transmitter can be mounted in 3 ways: on the temperature sensor, on a pipe, or on a bulkhead....