UNIK 5900 SIL

Flameproof/explosion-proof pressure sensing
platform, SIL certified version
The UNIK 5900 is a compact and rugged version of the highperformance UNIK 5000 pressure sensing platform with
SIL certification. It also offers intrinsically safe, flameproof/explosion proof or dust ignition protection by enclosure
capability as required. It provides a cost-effective alternative
to pressure gauges and switches in process, as well as in oil
and gas operations.

High quality
With over 40 years of pressure measurement experience,
our field-proven Druck technology is at the heart of the newplatform, resulting in a range of high quality, high stability
pressure sensors.

Bespoke as standard
Custom-built from standard components, manufacturing
sensors to your requirement is quick and simple; each UNIK
5900 is a “bespoke” pressure sensing solution, but with theshort lead times and competitive pricing you would expectfrom standard products.

Expertise
We have the people and the knowledge to support yourneeds for accurate and reliable product performance; ourteam of experts can help you make the right sensor selection,
guiding you and providing the help and tools you need. Itis important that you ensure that the sensor materials andperformance selected are suitable for your application.

Features• Ranges from 2 to 700 bar (30 to 10000 psi)
• Non-linearity, hysteresis and repeatability to ±0.04% Full
Scale (FS) Best Straight Line (BSL)• Stainless steel construction• Integrated terminal compartment with long or short body
• Frequency response to 3.5 kHz• Hazardous area certifications• SIL certification. For non-SIL certified products, please referto our standard UNIK 5900 datasheet, 920-582

UNIK 5900 SIL conformityspecifications

Performance specifications

Operating pressure ranges

Accuracy

Gauge ranges
Any zero based range from 2 to 50 bar (30 to 725 psi)

There are three grades of performance specification:
Industrial, Improved and Premium
Combined effects of non-linearity, hysteresis andrepeatability:

Any zero based range from 10 to 700 bar (146 to 10000 psi)

Industrial: ±0.2% FS BSL
Improved: ±0.1% FS BSL
Premium: ±0.04% FS BSL

Absolute ranges

Temperature effects

Any zero based range from 2 to 700 bar (30 to 10000 psi)

Four compensated temperature ranges can be chosen:

Sealed gauge ranges

Non-zero based ranges
Non-zero based ranges are available. Please contact Baker
Hughes to discuss your requirements.
Over pressure
1.5 × FS
Containment pressure
Ranges up to 50 bar (725 psi) gauge:
6 x FS (200 bar (2900 psi) max)
Ranges up to 50 bar (725 psi) absolute:
200 bar (2900 psi) maximum
Ranges above 50 bar (725 psi) absolute:
1200 bar (17400 psi) maximum

Electrical specifications
Supply and output voltage
Supply : 7 to 28 Vdc (32 V maximum for non-hazardous areaoperation)
Output : 4 to 20 mA
Supply sensitivity±0.005% FS/VPower-up time
10 ms
Insulation resistance>100 MΩ at 500 Vdc (approval option H0 only)
Isolation
500 Vac: Leakage ≤5 mA (approval options other than H0)

Compensated temperature
range

Industrial (%FS TEB)

Improved andpremium (%FS TEB)

-40 to +125 °C

±2.25

±1.50

-40 to +80 °C

±2.25

±1.50

-20 to +80 °C

±1.50

±1.00

-10 to +50 °C

±0.75

±0.50

Zero and span setting
Zero and span potentiometers allow adjustment range of atleast ±5% FS.
Factory set to:
Industrial: ±0.5% FS
Improved: ±0.2% FS
Premium: ±0.2% FS
Note: Adjusting zero or span may invalidate SIL compliance - refer tosafety manual.

Long term stability±0.05% FS/year typical (±0.1% FS/year maximum)
Safety accuracy
Safety accuracy includes non-linearity, hysteresis andrepeatability, thermal error, zero/span setting accuracy andlifetime drift.
Compensated temperature
range

Industrial (%FS)

Improved andpremium (%FS)-40 to +125 °C

4.45

3.00

-40 to +80 °C

4.45

3.00

-20 to +80 °C

3.70

2.50-10 to +50 °C

2.95

2.00

Fault state output: ≤3.6mA or ≥ 21mA

Physical specifications
Environmental protection

See the electrical connector section
Operating temperature range
See the electrical connector section
Pressure media
0 - 200 bar: fluids compatible with stainless steel 316L and Hastelloy C276
201 - 500 bar: liquids and group 2 gases compatible with stainless steel 316L
501 - 700 bar: group 2 liquids and group 2 gases compatible with stainless steel 316L
Enclosure materials
Stainless steel (body), Viton (O-ring), PTFE (vent filter)
Pressure connectorSee ordering information for available options
Electrical connector
OptioncodeDescription

B
J2Max operating temp range3

IP ratingZero/spanadjust°C°F

M20 female conduit with terminal
compartment-40 to +100

-40 to +212

66/671Y½ NPT female conduit with terminal
compartment-40 to +100

-40 to +212

66/671Y

1. Designed to be enclosure Type 4X, IP66 and IP67 when properly installed with conduit fitting.
2. Option J is supplied with an M20 to ½’’ NPT female conduit thread adaptor.
3. Hazardous area approved versions may be restricted to a reduced maximum operating temperature range – seehazardous area approvals.

Electrical connections
LabelFunction

I/P++ve Supply

O/P+-O/P--I/P--ve Supply

Certification
CE conformity• Pressure equipment directive 2014/68/EU - Sound engineering practice• ATEX Directive 2014/34/EU (optional)• EMC Directive 2014/30/EU
BS EN 61000-6-1: 2007			

Susceptibility - Light industrial

BS EN 61000-6-2: 2005			

Susceptibility - Heavy industrial

BS EN 61000-6-3: 2007+A1:2011		

Emissions - Light industrial

BS EN 61000-6-4: 2007+A1:2011		

Emissions - Heavy industrial

BS EN 61326-1: 2013			

Electrical equipment for measurement, control and laboratory use

BS EN 61326-2-3: 2013			

Particular requirements for pressure transducers• RoHS Directive 2011/65/EU

SIL conformity• Certificate number: 2103.2494• Issued by: Method functional safety• Assessed standard: SIL2 IEC 61508:2010 (Parts 1 & 2)
• Basis of certification:
Report 2103.03 v1 - Functional safety management, hardware requirements, hardware reliability• Safety Manual 124M4659

Hazardous area approvals (optional)
ATEX/IECEx flameproof or dust ignition protection by enclosure
Ex d IIC T* Gb
Ex tb IIIC T*°C Db
T6/T85°C (-40°C ≤ Ta ≤ +70°C)
T5/T100°C (-40°C ≤ Ta ≤ +80°C)
T4/T135°C (-40°C ≤ Ta ≤ +100°C)
Per certificates Baseefa 12ATEX0074X & IECEx BAS 12.0046X
ATEX/IECEx intrinsic safety
Ex ia IIC T5 Ga (-40°C ≤ Ta ≤ +80°C)
Ex ia I Ma (-40°C ≤ Ta ≤ +80°C)
Per certificates Baseefa 10ATEX0204X & IECEx BAS 10.0103X
FM approvals (Canada and United States) explosion-proof/flameproof and/or dust ignition proof by enclosure
XP CL I DIV 1 GP ABCD T*CL I ZN 1 AEx/Ex d IIC T*
CL II, III DIV 1 GP EFG T*/T*°C
ZN 21 AEx tb IIIC T*°C
T6/T85°C (-40°C ≤ Ta ≤ +70°C)
T5/T100°C (-40°C ≤ Ta ≤ +80°C)
T4/T135°C (-40°C ≤ Ta ≤ +100°C)
Single Seal (-40°C - +125°C)
Per FM approvals certificates FM16US0420X (United States) and FM16CA0193X (Canada)
Note: Model 59B2, using a metric electrical conduit thread, is not permitted for installation in ‘Divisions’ classified installations in Canada.
Note: Model 59J2, using a metric electrical conduit thread and supplied with a metric to NPT thread adaptor, must be installed with the adaptor fitted.

Ordering information1) Select model number

Main Product Variant
PTX 4-20 mA Pressure Transmitter
Product Series
5UNIK 5000		
Diameter and Material		 960mm Stainless Steel 316L Female Conduit with Terminal Compartment			Electrical Connector			 BM20 Female Conduit with Terminal Compartment			 J1/2” NPT Female Conduit with Terminal Compartment				Electronics Option				24 to 20 mA 2-wire (PTX)					 Compensated Temperature Range					 TA-10 to +50 °C (14 to +122 °F)					 TB-20 to +80 °C (-4 to +176 °F)					 TC-40 to +80 °C (-40 to +176 °F)					 TD-40 to +125 °C (-40 to +257 °F)						 Accuracy						 A1Industrial						 A2Improved						 A3Premium							 Calibration							CCFull Thermal								 Hazardous Area Approval								 H0None								 H1IECEx/ATEX Intrinsically Safe ‘ia’ Group IIC								 H2IECEx/ATEX Intrinsically Safe ‘ia’ Group I								 H3IECEx/ATEX Protected by Enclosure Group IIIC								 H4IECEx/ATEX Flameproof Group IIC								 H7FM (C & US) Dust Ignition Proof, Groups IIIC/EFG								 H8FM (C & US) Flameproof/Explosion Proof, Groups IIC/ABCD								 HAIECEx/ATEX Intrinsically Safe ‘ia’ Groups I/IIC [H1 + H2]								 HTIECEx/ATEX/FM (C & US) Flameproof/Explosion Proof Groups IIC/ABCD [H4 + H8]									Pressure Connector									PMG1/2 Female									PNG1/2 Male									PP1/2 NPT Female									PR1/2 NPT Male									RMG1/2 Female Long Version									RNG1/2 Male Long Version									RP1/2 NPT Female Long Version									RR1/2 NPT Male Long Version										 125M0202

SIL Certification

PTX

Typical Model Number

59J2- TA - A1 - CC - H1 - PN - 125M0202

2) State pressure range and units: e.g., 0 to 10 bar, -5 to + 100 psi
Unit options are:Symbol		bar		mbar		psi		Pa		hPa		kPa		MPa		
mmH2O		cmH2O		

Descriptionbarmillibar
pounds/sq. inch
PascalhectoPascal
kiloPascal
MegaPascal
mm watercm water3) State pressure reference e.g., gauge
Reference options are:• gauge• absolute• sealed gauge

Typical order examples
PTX59J2-TA-A1-CC-H1-PN-125M0202, 0 to 5 bar absolute
PTX59B2-TB-A2-CC-H0-PR-125M0202, 0 to 10 MPa gauge

Symbol		mH2O		
inH2O		ftH2O		mmHginHg		
kgf/cm2		atm		
Torr		

Description
metres waterinches waterfeet water
mm mercury
inches mercury
kg force/sq. cmatmospheretorr

Mechanical drawings

Note: All dimensions in mm (inches)

Copyright 2021 Baker Hughes Company. All rights reserved.

920-689B

BHCS38663			(04/2021)

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