6005 Servo Tank Gauge
The 6005 Servo Tank Gauge (STG) is an intelligent tank gauge for high accuracy liquid level measurement employing the latest micro-technology. In addition to level measurement, the 6005 STG can determine the interfaces between three liquids, specific gravity of these liquids and tank bottom. To enable accurate volume calculation or simply for indication, the 6005 STG will accept an input from the 4532 or 4539 temperature device (via two core cables using HART® protocol) or a single spot temperature element (Pt 100).
Once installed, all calibration and operating functions can be made via the user friendly Matrix program and touch sensitive keypad. Tank side monitoring and operation can be performed by the 4560 Servo Gauge Monitor (SGM). 
- Measures liquid to an accuracy of +/- 0.7 mm
- Measures two clear interface levels and specific gravity of up to three liquid phases
- Profiling of liquid density throughout the tank (tank profile) and upper layer (I/F profile)
- Wetted parts are completely separated from the electronic circuit
- Tank top mounting with 3” flange weighing only 12 kg (aluminum version)
- Wide range of output signals, including RS-485 (MODBUS), Mark Space and Enraf BPM protocol
- Material and pressure rating of the wetted parts can be selected according to the application
- Suitable for atmospheric and high pressure applications up to 363 psi (2500 kPa, 25 bar)
- Maintenance prediction of the instrument
- Direct connection of spot or average temperature probes
- Built-in calibration window capabilities
- FM & CSA approved for use in hazardous areas
- NMI approved for custody transfer applications
- Proactive safety diagnostics output to display and system operators
Maintenance Prediction
The 6005 STG will provide advance warning of required maintenance, such as replacement of worn wire, etc. The operating life span of electrical and mechanical parts of the 6005 STG are factory set within the instrument's memory. This information is checked with the built-in clock and then compared and registered in the instrument.
Field Communications
The 6005 STG has a variety of communication protocols that enables compatibility and integration in the following tank gauging systems:
- EIA-485 MODBUS®
- HART
- Varec Mark/Space
- Enraf BPM
Control room interrogation and operation are facilitated by protocol conversion to various outputs by the 8130 Remote Terminal Unit (RTU). The 8130 RTU is ideal for large volume tank farms, integrating data from up to 160 tank sensors, transmitting to a FuelsManager® host system via 4 separate protocol converter modules.
Product Options
Pressure rating, drum chamber material
- 0.2 bar g; aluminum or stainless steel casting
- 6 bar g; aluminum or stainless steel casting
- 25 bar g; stainless steel
Protection class
- Weather proof; IP67/NEMA 4X
- FM - Explosion proof - Class 1, Division 1, Groups C & D
- CSA - Explosion proof - Class I, Division 1, Groups C & D
- ATEX - Flame proof; EEx d IIB T6
- ATEX - Flame proof; EEx d IIB T6, Zone 0
- ATEX - Flame proof; EEx d (ia) IIB T6
- ATEX - Flame proof; EEx d (ia) IIB T6, Zone 0
- FM - Explosion proof/intrinsically safe (AIS) - Class I, Division 1, Groups C & D (EEx d(ia))
- CSA - Class I, Division 1, Groups C & D (Eex d(ia))
Application
- Level
- Tax + Weight NMi, Level
- Multi measurement, Level, I/F Level, Bottom, Density
- Tax + Weight NMi, Level + I/F Level, Bottom, Density
- Density profile multi measurement, Level, I/F Level, Bottom, Density
- Tax + Weight NMI, Density Profile, Level, I/F Level, Bottom, Density
Primary (digital) output
- Serial Pulse (V1)
- Enraf BPM
- RS485 MODBUS
- Digital output not selected
Secondary output
- Secondary output not selected
- Alarm contact, 4 SPST
- 4-20 mA, 2 channel selectable
- 4 SPST and 4-20 mA, 2 channel
- 2 SPST, overspill protection
- 4 SPST, 4-20 mA, 1 channel
Signal input from field units
- HART (e.g. N453x, N4560)
- HART and Pt100 spot temperature
- HART and operation contact, 3 digits
- HART, Pt100 spot temperature and operation contact
- HART and 1x status
- HART, Pt100 spot temperature and 1x status
- HART, Pt100 spot temperature, operation contact and 1x status
Measuring range, wire material
- 0...28m, AISI316 wire
- 0...36m, AISI316 wire
- 0...16m, AISI316 PTFE covered wire
- 0...16m, Hastelloy C wire
Cable entry (x4)
- G (PF) 3/4" or NPT 1/2" or 3/4" thread
- Pg 16 or Pg 21 thread
- M20 or M25 thread
Process connection
- ANSI 3" 150lbs RF flange
- ANSI 3" 300lbs RF flange (25bar drum) (only for 25 bar drum chamber)
- ANSI 6" 150lbs RF flange
- DIN DN80 PN10 RF flange
- DIN DN80 PN25 RF flange (only for 25 bar drum chamber)
Power supply
- 85...264 VAC, 50/60Hz
- 20...62 VDC, 20W / 20...55 VAC, 50/60Hz, 20 V
Displacer shape diameter; material
- Conical 50mm, PTFE
- Cylindrical 50mm; AISI316 (stand.)
- Cylindrical 40mm; AISI316
- Cylindrical 30mm; AISI316
- 70mm, W&M NMi
- 110mm, W&M PTB
- Cylindrical 50mm, Hastelloy C
- Cylindrical 50mm, PTFE
- Cylindrical 40mm, PTFE
- Cylindrical 30mm, PTFE
O-ring; chamber finishing
- NBR; standard chamber
- Silicon rubber; standard chamber
- Fluor rubber; standard chamber
- Silicon rubber; PTFE coated chamber
- Neoprene (ammonia); standard chamber
Additional options
- Cleaning nozzle
- Gas purging nozzle
- Guide wires (AISI316)
- Relief valve
- Relief valve and pressure gauge
- Sunshade
