Explosion-Proof Multivariable Transmitter


Tek-Trol’s advanced Tek-Bar 3800XH Explosion-Proof Multivariable Transmitter provides a reliable and accurate measurement of direct process variables. Tek-Trol’s Multivariable Transmitter consists of multisensor and microprocessor technologies. Therefore, the transmitter is capable of measuring three different process variables at the same time.  The Tek-Bar 3800XH Multivariable Transmitter is a best-in-class design solution to obtain measurement combinations of different process variables, including DP (Differential Pressure), SP (Static Pressure), PT (Process Temperature), Flow, Totalizer and MBT (Meter Body Temperature). It delivers better performance, reliability, flexible construction, advanced display technologies and unique integration features. The Tek-Bar 3800XH Multivariable Transmitter provides repeatable, accurate and stable flow measurement with dynamic compensation algorithms compatible with various flow elements and global engineering standards. Its innovative and modular design supports the end user’s ability to replace meter bodies, indicators or change electronic modules without affecting the overall performance and it reduces maintenance costs to provide a cost-effective solution. Also, its universal calibration and input capability minimize inventory requirements.  This stable compensated flow measurement solution is used across industry verticals, including Oil & Gas, Chemical, Petrochemical, Power, Glass, Pulp & Paper, Metal and other process industries.
  • Automatic static pressure and temperature compensation.
  • Wide turndown ratio up to 400:1.
  • Multiple local display capabilities.
  • External zero, span and configuration capability.
  • Comprehensive on-board diagnostic capabilities.
  • Integral Dual Seal design for highest safety based on ANSI/NFPA 70-202 and ANSI/ISA 12.27.0.
  • World-class overpressure protection.
  • Field-replaceable modules reduce downtime.
  • Universal transmitter terminals save installation and startup time.
  • Low cost and maintenance.
Accuracy Differential Pressure: up to ±0.0400%
Static Pressure: up to ±0.0375%
Temperature: up to 0.2°C
Mass Flow: up to 0.6%
Totalizer: up to 0.4%
Measuring Range Differential Pressure: -25 in H2O/-62.5mbar to 25 in H2O/62.5mbar
Static Pressure: -400 in H2O/-1000mbar to 400 in H2O/1000mbar
Operating Temperature -40 to 185°F (-40 to 85°C)
Storage Temperature 67 to 248°F (-55 to 120°C)
Humidity 0 to 100%
Output Signal Two-wire, 4 to 20mA (HART & DE Transmitters only)
Tek-Trol DE, HART 7 and Modbus protocol
Modbus Model: RS-485 Half duplex communication interface
All transmitters, irrespective of protocol have polarity insensitive
Power Supply HART Models: 10.8 to 42.4VDC
DE Models: 15 to 42.4VDC
Modbus (RS-485) Models: 9.5 to 30VDC
Material 316L SS, Hastelloy® C-2762, Monel® 400 3, Tantalum, Gold-plated
316L SS, Gold-plated Hastelloy® C-276, Gold-plated Monel® 400
Electronic Housing Material Pure Polyester Powder Coated Low Copper (<0.4%)-Aluminum
Fill Fluid Silicone Oil DC200, Silicone Oil 704, NEOBEE® M-20 or CTFE
Mounting Can be mounted in virtually any position using the standard
mounting bracket. Bracket is designed to mount on 2” (50mm)
vertical or horizontal pipe.
Process Connections ¼”- NPT or ½”- NPT with adapter
Net Weight 8.3pounds (3.8kg) with Aluminum Housing

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