ETA Process Instrumentation - since 1971


ETA Process Instrumentation - Since 1971
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Martel Electronics 


Martel Electronics - Electrical Calibrators
  • A diversified line of hand held and bench calibrators, process instruments, process indicators, and power supplies
  • Used for Calibration services, Electric utilities, Biotechnology & Pharmaceutical manufacturing, Natural gas utilities, Power generation & Processing, and Pulp & Paper manufacturing.
  • For the process industry and OEM applications.
  • Include BETA Calibrators that are compatible with a wide selection of calibration management software packages and their own calibration management software.
Martel LC-110 and LC-110H Electrical Loop Calibrators 

Precision Current Loop Calibrator With Hart Communications/Diagnostics   

LC-110 & LC-110H Calibrators

General Features:

  • Best in Class Accuracy at 0.01% Reading
  • 24VDC loop power with mA Measure Mode (-25% to 125%)
  • Built in selectable 250Ù Resistor for HART Communications
  • Adjustable Span and Valve Test (simulate defined mA values with % keys)
  • HART communications for universal and common practice commands
  • Monitor PV unit, PV, PV mA, PV % and Trim DAC zero/gain
  • Capture twenty transmitter configurations for upload via BetaLOG HART software
  • Data log capacity of 9800 records or 99 individual sessions
  • More information

The Martel LC-110 and LC-110H are mA (loop) calibrators designed to take the loop calibrator class to the next level. The new LC-110 series feature a user friendly interface with dedicated buttons and a rotary encoder (Quick-Set Knob). This combination drastically reduces the time it takes to measure, simulate, or source both voltage and current and power up a loop. The rugged ABS plastic case is contoured to easily fit a technician’s hand and the large back lit graphics LCD is best in class.

The LC-110H differs from the standard LC-110 in that it incorporates HART communications and supports a select set of the HART universal and common practice commands. This unique feature allows the LC-110H to be used as both a loop calibrator and communication tool.

Martel MS-420 Mini-source portable loop calibrator 

Loop Calibrator

MS-420 Loop Calibrator - Mini-source Portable Loop Calibrator
Loop Calibrator Features:

  • Calibrates Chart Recorders
  • Calibrates Panel Meters
  • Calibrates Data Acquisition Devices
  • Calibrates Other Process Instruments
  • More information
The Loop Calibrator is a multi-purpose process loop tool that offers high accuracy in an ultra-small, rugged package.

A single pushbutton selects one of five current outputs (4, 8, 12, 16 or 20 mA), which can drive up to 300 Ohms, or can act as a 2-wire simulator with an external loop power supply of up to 30 VDC. Each unit is provided with a 9V battery, NIST Certificate, and instruction manual.

Martel IVC-222HPII Voltage Current Calibrator

Voltage Current Calibrators

IVC-222HPII Voltage Current Calibrator - Precision voltage/current calibrator
Voltage Current Calibrator Features:

  • Remarkable 0.015% of reading accuracy
  • Four ranges: 200 mV, 2V, 20V, and 24 mA (source only)
  • Intuitive, easy-to-use controls
  • RS-232 interface allows computer control
  • Built-in 24V power supply can drive 4 to 20 mA loops over 1,000 Ohms
  • Rugged, lightweight, hand-held unit
  • Includes test leads, 9V battery, NIST certificate with data calibration
  • Neoprene sleeve, optional carrying case available
  • More information

The voltage/current calibrator is a general purpose current and voltage source that can be used in engineering, manufacturing, test, and process control applications. It combines both digital and analog circuitry to achieve its rated specifications in a small, reliable package.

This voltage current calibrator has the capability to store and recall up to 2 setpoint values, the SP1 and SP2 keys. An RS-232 port accessed via a custom cable (available from Martel) allows the calibrator to be computer controlled for automated testing.

Martel PSC-4010 Process Signal Calibrator 

Process Signal Calibrator

PSC-4010 Process Signal Calibrator - High Accuracy Process Signal Calibrator

  • Simple, straight forward, Intuitive user interface
  • Easy to learn yet powerful 3 Key Martel Menu System
  • New ClearBrite™ Graphic Display
  • New streamlined case design
  • Reads and simulates process control signals voltage, current, and frequency
  • Multiple input/output ranges for current, frequency, and voltage modes
  • Built-in 24 VDC source for powering two wire transmitters
  • Accuracy ± 0.015% of reading
  • Supplied in full rubber boot; Optional carrying case available
  • Includes NIST Certificate with calibration data
  • In addition to our standard unit is our PSC-4010-50 version. All the functionality of our standard PSC-4010 with the ability to source/measure 50 milliamps. The part number for the 50mA version is 1919908.
  • More information

The PSC-4010 is a superior Process Signal Calibrator with voltage, current and frequency functions. With the best display in the business it makes the essentials of instrument calibration easier than ever. This Process Signal Calibrator is a portable, handheld, full function voltage, current, and frequency device with the capability to both read and source common process control signals.

For additional information, complete this application data sheet and email to or fax to 978 532 7325.

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ETA Process Instrumentation, 119 Foster Street, Bldg. 6, Peabody, MA 01960 (978) 532-1330 or sales(a)
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