Martindale TEK300 20mA Loop Calibrator

  • Sink, Source & Monitor modes
  • Low cost current calibrator
  • Resolution of 10uA
  • 0 – 20mA Current Range

EAN: 5036162183188 SKU: MARTEK300 Category:


The Martindale TEK300 process control calibrator features sink, source and monitor modes for 0 – 20mA and is ideal for most process control applications, as well as general purpose signal injection applications.

The handheld unit is fully portable and has a large 3.5 digit LCD display, with overload protection for extra safety.

The Martindale TEK300 is supplied with batteries & instruction manual.



DC/DC converter output 28.5V (+0.1V)
Current range 0-20mA F.S. (+0.1%)
Resolution 10µA
Temperature drift 150ppm/°C
Linearity +0.15%
Output noise (typically) 4mV p/p
Indicators LED (green) – battery OKLED (red) – output error
Display 3½ digit LCD
Output connectors 4mm terminal posts (19.05mm apart)
Operating temperature 0-50°C
Supply 2 x 9V alkaline batteries, MN1604 or equivalent (included)
Housing light grey ABS hand-held, supplied with stand
Weight 380g approx.
Dimensions 180 x 100 x 44mm