Honeywell Enraf Smart Servo 954 Enraf Tank Gauging

• Customization: Available
• Certification: JIS, DIN, ANS, GB, CE, RoHS, ISO
• Condition: Original New
• Baud rate: 1200 / 2400 bps
• Isolation voltage: > 1, 500 V
• Common mode rejection: > 150 dB
• Measuring accuracy servo density: < ± 3 kg/m3 (± 0.19 lb/ft3)
• Density measurement: With density firmware
• Transport Package: Carton
• Trademark: Honeywell

Product Description

Product Description

Honeywell Enraf has ensured that the industry's best tank gauging solution is now even better. Designed for measuring varied liquids in any type of storage tank, our new Smart Servo 954 is a reliable, versatile and accurate automatic tank gauge. This instrument advances the art of tank gauging by 
combining proven technology with enhanced electronics and software, as well as increased intelligence. And, it stands up to the most demanding process conditions.

THE INNOVATIVE DESIGN OF THE SMART SERVO 954 INCORPORATES:

State-of-the-art Features

- Patented algorithms for greater precision in all applications 

- Adaptive dynamic compensations to improve measurement under adverse conditions 

- Unique force transducer technology to optimize stable operation 

- Advanced drum calibration for guaranteed accuracy 

- "SIL-by-design" features with unique diagnostics for reliable operation (IEC 61508) 

- Separate terminal compartment for ease of wiring 

- Safety approvals and certifications from legal metrology institutes worldwide 

- NMi approvals 

- OIML R85 and varied liquids compliance

The Smart Servo 954 was designed to incorporate a host of innovative, best-in class features. 
For example, its unique, fully capable software supports diagnostics on SIL
rated loops. An option slot for additional functionalities allows the connection of temperature measuring elements for spot/average product and vapor phase temperature, as well as product temperature profiles. 

The new gauge is equipped with a Servo Auto Test feature, which increases safety, integrity and diagnostic coverage, and enables usage in overfill protection loops. It can be included in SIL-2 safety loops, and if used in a redundant configuration, is suitable for SIL-3-rated loops.

A FLEXIBLE AND ADAPTABLE SOLUTION

BENEFITS TO YOUR BOTTOM LINE

Honeywell Enraf servo gauging systems provide a flexible and adaptable solution for a wide range of terminal operations. They are suitable for: 
- Product and gas temperature with spot or average temperature measurement, or temperature profiling 
- Product level 
- Interface level 
- Density measurement and profiling 
- Direct water bottom measurement or via capacitive probes 
- Average continuous density monitoring connecting one or more HART pressure transmitters 
- TUV SIL certified NO/NC alarm relay contact and/or 4-20mA Analog output for direct connection to Safety or Distributed control system 
- Easy integration with Honeywell Experion DCS system & Safety Manager ESD system 
- Measurement ranges up to 150 m 
- Working pressure up to 40 bar

Honeywell Enraf Smart Servo 954 is the most reliable, versatile and  accurate automatic tank gauge available.

- Accurate measurement in liquids including vaporized applications- Improve reliability under dynamic conditions - Maximize storage capacity with lowest safety diagnostic cycle time 
- Enhanced safety with SIL certified AO/DO options for overfill prevention 
- Modular design for ease of maintenance 
- Simple & cost effective migrations for legacy & 3rd party gauge 
- One stop integrated gauging solution for all your terminal needs

Specification

DATA COMMUNICATION
Honeywell Bi-phase mark(Pos 7=B)
Baud rate	1200/2400 bps
Cable characteristics	2 wires,twisted pair,Rimax-200 Ohm/lne,Cmax-luF cable length 10km(Gmiles)or more*1
solationwoltage	>1,500V
Lightrning protection	Full galanic separation via isolating transformers
Protocol	Standard Honeywll fedbus (Serial, ASCII, GPU protocol)
Commonmode rejection	>150dB
TRL/2 Communication Protocol TRL/2 Communication Protocol TRL/2 Communication Protocol (Pos 7 = T)
Protocol	Modbus RTU; Commurication:TRL/2100/90 KHz FSK
Baud rate	4800,8 bits and 1 stop bIt.
Lightrning protection	Opto-isolators
Cabling	18AWG (mirimum) with shieldled twisted pair, max 4km with max8 multi drop Gauge connections
Ptysical layer	Logic l is represented by 100kHz and Logic 0 by 90khz: (+/-3%)
Voltage levels	3.6V+/-10%.
Power rating	At 12V Nominal current drawn by TRL/2 module alone is 40mA(+/-10%). [power corsumption is 480mW(+/-10%).The worst case current/power drawn with belowmertioned concitions is 60mA.
HART Slave-Multidrop and/or 4-20mA(Pos7-H)
Protocol	Commuricatiors:HART 7
Analog output loop (non-.S.)	Active or Passive; selectable byjumper -Active:output woltage:20V±5% -Passive:minimum exterml supplyvoltage:11.5V masimum external supplyvoltag:30V(55Vwithserial resistor)
Accuracy	±0.1% of actual measurement
Cable characteristics	2 wires, shielded,twistedpair
ALARM CONTACT OPTIONS
Hardware alarms (1×SPDT)	250 VAC, 2A(40 VDC,2A)
Hardware alarms(2×SPDT)	250 VAC, 2A(40 VDC,2A
Relayoperation	-Normally Open/Normally Closedcontactselectable byjumper -Normally Energized/Normaly De-energizect configurable bysoftware setting -PV Morito (any of the measuredparameters,configurable bysoftware setting) -Remote control(configurable by softwaresetting)
SIL 2/3SAFETYFUNCTIONSALARMCONTACTSOPTIONS
SIL Digital Output	1×SIL DO contact(1×SPDT contact, 2A at 250Vac or 2A at 40Vdc. Pmax-500W)
	2×SIL DO contact(2×SPDT contact, 2A at 250 Vac or 2 A at 40 Vdc, Pmax-500w)
SIL Analog Output	SIL AO NAMUR NE43compliant
SIL Digital Output+Analog Output	SIL AO+1SIL DO contact NAMUR NE43 compliant
	(1×SPDT contact , 2 A at 250Vac or 2A at 40 Vdc, Pmax=500W)
	SIL AO +2 SIL DO contacts NAMUR NE43 compliant
	(2×SPDT contact, 2 A at 250Vac or 2A at 40 Vdc, Pmax-500W)

Notes:

HAR T ® is a registered trademark of the HAR T Communications Foundation. 
*1 Distances of more than 10 km possible depending on amount of field instruments and cabling topology.

*2 Under reference conditions. 
*3 With VITO temperature probe or Spot (PT100). 
*4 Various generally available types of elements (RTD, MRT) can be selected. 
*5 Under reference conditions

INPUT
VITO Input forTemperature and Water Probe
Communications	Propdetary HART (Ex-i
Cable characteristies	2 wires,shielded, twisted pair,Cmax=1μF,Lmax=9mH,Rmax=25Ω/line
Accuracy	- Temperature measurement:±0.1℃(±0.18°F)*2, *3 =Water level measurement:±2mm(0.078*+3
Raesolutiaon	=Temperature measurement:0.01℃(0.01°F) Water level measurement:0.1mm(0.01*)
Spot RTD Input
Canfigurations	=3 wire or 4 wire RTD, one element or two elements*4
	-MPTorMRT up to B dlementswith2cammonground wires 4
Cable characteristies	Shielded, Rmax=100Ω/line, Cmax=1μF, Lmax=10.5mH
Accuracy	±0.1 °C (±0.18 °F)
Resolutlion	0.01℃ (0.01°F)
HART*Input
Canfigurations	Options -5 HART#inputs and/arHIMS densitycaloulation VITO sensors and/or3 HART®inputs =3HART*input,HIMSdensitycalculation and VITO sensors
Max.instruments per module	5(digital)or1(analog)
Communications	HART(revision4)
Cable characteristies	2wires, shladed, tulsted pair Cmax=1uF, Lmax=9mH, Rmax=252/line
Other Optans
Cable entries	Adapters aralable to fit other sizes cable glands
INSTRUMENT MEASURING SPECIFICATION
Level measuring range
Standard	27m(88ft)Pos 18=A,B,C
Extended	37m(121ft)Pas 18-E,F
	40m(131ft)P=18=H,
	45m(147ft)P≤18=K,
	35m(115ft)(with measuring wire up to 150m(492ft))Pos18=M;
	Forlonger ranges,please contact factory
Measuring accuracyleved	40m(131.2ft):<±0.4mm(±0.016")*5;
	40m(131.2ft):OIML R85 certified(Pos 5×X);
	45 meter with+-1 mm accuracy
	last 35 meter with +-1 mm accuracy on 150m wire
Measuring accuracyinterface	<±2mm(±0.08*)*6
Measuring accuracytemperature	<±0.1℃(±0.18°F)*5
Sensltvity	<0.1mm(±0.004'')+5
Repeatablity	<0.1mm(±0.004'')+5
Density Measurement
Density measurement	With densty firmware (Pus20=D and density displacer (Pos19-EarF)
Measuring accuracy servo density	<±3kg/m3(±0.19lb/ft3)
MECHANICAL
FLange	See 'Identification Code' Pos14-16
Dimensions	See' Dimensional Drawing
Welght
Mediumpressure verslon	16kg(35 b)
Chemical version	21kg(46lb)
High pressure version	26 kg(57 lb)
Cable entries	4×3/4''NPT threaded (2*1.S.+2*non-1.S.)

PROCESS
Operating pressure
Mand Cversions	Up to 6 bar/0.6 MPa(90 psi); Pos 14
H version	Up to 40 bar/4 MPa(600psi)(upto 25 bar/2.5 MPa in acc.to PED); Pos 14
Temperature
Max.processtemperature	+200℃(+392°F),drum housing must be kept below +65℃(+149°F)*7
Min.process temperature	-200℃(-328°F),drum housing mustbe kept above -40℃(-40F)*7
PROCESS WETTED MATERIALS
Drum compartment	Cast aluminum Int.reg.AAA356EN1706AC-AISi7Mg0.3;Pos14=A or M Stainless steelASTM A351,CF-8M,G-X6 CrNiMo 1810(1.4408);Pos 14=H orC
Measuring drum, drum shaft	Stainless steel (1.4401) EN10088 AISI 316
Measuring wire	See 'Identification Code'; Pos 18
Magnetcap	Stainless steel(1.4401) EN10088 AISI 316
O-rings	Drum cover Silicone/FEP; others FPN(Viton); SpecialO-ring (Perlas) available for demanding chemical applications (such as Ammonia), part nr. S0854969
ENCLOSURE MATERIALS
Servo comp.and cover	All types castaluminum Int.reg.AAA356EN1706 AC-AISi7Mg0.3
Finish aluminum parts	Conforms to MIL-DTL-5541F
ENVIRONMENTAL SAFETY
Ambient temperature	-40℃ to +65℃(-40°F to+149F)
Storage temperature	-50℃ to +70℃(-58°Fto+158F)
Protection class	IP66/IP67 according to EN 60529(NEMA4X)
Safety	Explosion proof
	-II 1/2 G Exd IIB T6 Ga/Gb or Exde IIB T6 Ga/Gb or Exd[ia Ga] IIB T6 Ga/Gb or Ex de [ia Ga] IIB T6 Ga/Gb; acc.to ATEXKEMA -ClassI, Division 1, GroupC &D; acc.to FM
	-Classl, Group C&D acc.to CSA certificate
	Consult factory for other approvals and updates
ELECTRICAL
Power supply	Autoselect65 Vac to 240 Vac, 50/60Hz and/or 24Vdc to 65 Vdc
Power rating	11 Wmaxcontinuously
MIGRATION OPTION
Migration kit 954(Pos4:Option M)
Migration Kit 954-Enraf Servo 854 ATG to Servo 954 hardware migration kit

Ordering Guide

Notes:

1. Applicable for compliance to country specific Legal Metrology certificates ( Like Netherlands, Germany etc.) For witnessed verification specify authority; for more information please contact factory 
2. Contact factory for longer measuring ranges 
3. The SmartServo FlexLine will always be delivered from the factory with the latest global approved Firmware for all boards (FlexConn modules).

Please check if your local approvals require previous versions of the firmware for the legal metrology relevant FlexConn modules. If that is the case, please take provisions to downgrade the Firmware of the legal metrology relevant boards of the SmartRadar FlexLine! 
4. The RMA805 "ENRAF Remote Indicator" is a remote display (level and temperature only) and available in combination with option B). This display can be ordered separate. 
5. The Migration kit is without the Front Cover and the Terminal compartment cover. When also these covers need to be replaced, they must 
be ordered seperately.

Restrictions:

Sum of boards = max 5 
Sum of IS terminals = max 12 
Sum of nonIS terminals = max 12

*M Only available when Pos4 = M 
*A Only available when Pos4 = A 
*B Only when pos 5 NOT X

Company Profile

BNSENS (Nanjing) Sensor Technology Co., Ltd. is located in Nanjing, China. It is a high-tech enterprise specializing in the development, manufacturing and trade of sensor products. The company has brought together a group of outstanding technical experts in various fields such as automation, electronics, machinery and computers. All employees of the company have college degrees or above. It adopts the world-class management and operation model and 6 sigma quality system. At present, the company's main products are pressure, liquid level, flow, current, switches, etc. The company's users are all over the country, and some products have been exported to Japan, South Korea and Southeast Asia.

Since its inception, the company has been based on the technical accumulation and management standards of American sensor giants. It is composed of senior engineers and managers who have served in multinational companies for many years, and has rapidly developed various pressure sensors, transmitters, liquid level, flow meters, pressure switches, digital meters, current sensors, proximity switches and other products. After years of unremitting efforts, it has become one of the leading suppliers in the domestic automation industry. Our pressure transmitters can achieve an accuracy of more than 3/10,000. The products have been widely used in oil, natural gas, electricity, chemical industry, metallurgy, building materials, food, light industry, environmental protection, aerospace, tap water, municipal and other industries.

It is a sensor science and technology innovation company that masters the core technology of MEMS chips. The company has a research and development center in Minnesota, USA. The leader is Dr. Pan Hanjin, a famous scientist in the sensor industry. Dr. Pan Hanjin has been deeply involved in the sensor industry for more than 20 years and is an expert in the sensor industry.

The company has a number of ASIC chips independently developed, which are widely used in industrial, automotive, home appliance and other markets.

BNSENS (Nanjing) Sensing Technology Co., Ltd. is a strategic partner of Honeywell in China. The two parties proposed a plan of East serving East and jointly developed several sensors specifically for the Chinese market. These sensors will be widely used in intelligent manufacturing, Internet of Things, artificial intelligence, and smart home fields. These sensors include: magnetic sensors, temperature sensors, humidity sensors, force sensors, fire water pressure sensors, equipment vibration sensors, human body status monitoring sensors, motion sensors, etc.

History of BNSENS Company:

BNSENS is a company focusing on sensors, instruments, and electronic components. We are a young company, founded in 1999, just 25 years old, and we are still growing.

1999: The company's first pressure sensor was launched, mainly for the petroleum and petrochemical industries.

2002: The company expanded its product line and launched temperature sensors

2005: Started producing high-precision pressure sensors for the test and measurement market

2006: Became an official authorized agent of Honeywell

2009: Introduced the Six Sigma management system, and the product qualification rate was greatly improved

2010: Became a supplier of Emerson

2011: We started selling SICK sensors

2014: Introduced the sensor production line from Germany, developed more industrial control sensors, and cooperated with TSMC

2015: Cooperated with Siemens in Vietnam

2017: The factory moved to Nanjing High-tech Zone

2019: Became a national high-tech enterprise in China

2023: We started selling products from Infineon and Rohm

2025: We started cooperating with Fluke

BNSENS,The Future Starts Here.