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As of July 31, 2008 all chart recorders have been discontinued. Service and parts are still available.

Strip Chart Recorders
• Temperature • Air Quality
• Wind Speed • Wind Direction
• Rainfall • NOx, SO2, O3
• KVA, MVARS’s, Volts, Amps,
• Frequency, Megawatts
• milliVolts, mA • Pressure/Vacuum
• No Keyboards, No Programming
• Switch Selectable Range
• Switch Selectable Chart Speeds
Temperature Recorders
• For J, K, T, R, S, or E Thermocouples
• Thermocouple Break Protection
• 1, 2, or 3 Pens; T/C, mA, mV Inputs
• Select 4 Inch or 10 Inch Chart Width
• Digital Display and Set Point Options

M-Tek temperature recorders have miniature thermocouple connectors on the rear panel and provide cold junction compensation, thermocouple break protection, and linearization for all thermocouples. Select from our standard temperature ranges or contact our customer service department for special ranges. Specify any combination of inputs: thermocouples on some pens and mA, mV, or Volts on others. Single or 12 speed chart drives in English or metric units available.

Battery Powered Portable Recorders

No Longer in Production

For locations where power is unavailable or unreliable, M-Tek offers 1 and 2 pen recorders with built-in rechargeable batteries. The Models 221 and 222 will operate for up to 7 days on their internal batteries, and can also operate from 115 or 220 VAC when available. An automatic recharger is built in, and plugging into line power for 24 hours will completely recharge the battery. A switch on the rear panel allows switching from recording mV signals to J or K T/C's. These recorders feature 12 switch selectable ranges from 1 mV to 50 VDC and 12 speed chart drives in either English or Metric units.

Low Cost 4 inch Chart Recorders 

No Longer in Production

The M-Tek 310 and 312 recorders are ideal for long term continuous recording of virtually any process parameter. With field proven reliability in thousands of installations and a full two year warranty on both parts and labor we are sure you will be happy with the performance. 1/2% accuracy, fast, 400 mSec full scale response time and a high impedance servo system make these recorders easy to use with any sensor.

Reliable 10 Inch Wide Chart Recorders

No Longer in Prodiction


The wide chart recorders provide 10 inch (250 mm) wide charts; one, two, or three pens; and 12 speed chart drives in either English or metric units. Switch selectable ranges of 1 mV full scale to 10 mV full scale are available plus a 5X attenuator allows front panel adjustment of the amplifier ranges up to five times their nominal limit. 4 to 20 mA and most popular thermocouples such as J, K, T, R, S, and E can be used. The wide chart recorders have 1/2% accuracy, Megohm input impedance, and 1/2 sec. full scale response time. Most optional features such as splash proof NEMA enclosures, event markers, and alarm/control set points are available.

NEMA Enclosures, Digital Displays, Alarm Setpoints, and Other Options

The M-Tek portable, 4 inch, and wide chart recorders can be ordered with a wide range of options and accessories: NEMA Enclosures; gasketed or plastic doors, alarm set points for one, two, or three pens; special chart paper scales, or markings. And, if you have a recording application that is special or unusual, just give us a call. We’ll be happy to work with you to find a solution.

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2419 Smallman Street · Pittsburgh, PA 15222
(800) 426-9340 · (412) 261-7630 · FAX (412) 261-7220 · VRL@vacuumresearch.com