Altek 211 RTD Temperature Calibrator

ALTK 211
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Price: $1,605.00

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Altek 211 RTD Calibrator lets you SIMULATE and READ RTDs over the entire industrial temperature range. Use with transmitters, recorders, controllers, alarms, indicators, data acquisition and computer systems. Switch between four Platinum
100, one Pt 1000, one Cu 10, two Ni RTD curves or OHMs ranges from 0.00 to 410.00 and 0.0 to 2010.0.  Field customize the Altek 211 RTD Calibrator to lock-in 1° resolution, fixed ° C or ° F or front selectable ° F/° C operation. Read and simulate
2-Wire and automatically compensate for 3-Wire RTDs with builtin leads. A plug-in lead is supplied for 4-Wire RTD measurements.  The Altek 211 turns on in the RTD type last used. Other RTD types may be selected each time the unit is turned on. If you
always use one RTD curve, lock-in the selected RTD type with the internal DI P switch to prevent accidental change to an unwanted RTD type.

Resolution is 0.1° over the full range for Platinum 100 ohm RTD simulation, with 1 mA current supplied from the external device.  Ohms range, at 1 mA current, provides 0.01 resolution from 0.00 to 410.00 and autoranges to 0.1 resolution from 410.0 to 2010.0. 

“QUIK-CHEK” function stores THREE output temperatures for real convenience.  The ALTEK 211 RTD Calibrator simulates key temperatures for repetitive calibrations. Turn the knob to check trip points, controller action or hysteresis. The fast response Altek 211 sets quickly without overshoot. Memory is retained even when power is off.

The Altek 211 has a unique circuit which lets you simulate RTD’s with most transmitters, recorders and other RTD inputs with fixed or intermittent excitation currents.

The Altek 211 RTD Calibrator display gives you fast, accurate temperature measurement with 0.1 and 1 degree or with 0.01 and 0.1 ohm resolution. Two, three and four wire hookups assure accuracy in long cable runs. Open RTDs and leads are detected and indicated on the LCD display. Two readings per second track fast moving temperatures.

“MAX” and “MIN” memories are continuously updated from turn-on or whenever the “ RESET” button is pressed. Altek 211 RTD Calibrator gives you a handy tool to monitor temperatures for drift or control deviation. Just flip the QUIK-CHEK switch to display the MlNimum and MAXimum temperature measured since reset.

Each time the Altek 211 is turned on, the LCD displays all segments for 1 second. It then displays the sensor material and Alpha (ohms at 100°C/ohms at 0°C) for the currently selected RTD type for approximately 3 seconds. Any of 8 built-in RTD types
and alpha values plus ohms may be selected during the RTD turn-on mode.

Custom ranges for additional RTD types, Dew Cell or other resistive sensors are also available. The Metal, Base Resistance and Alpha value for the custom RTD curve must be specified. Adding a custom range to a Altek 211 may require removing one of the standard ranges.  Unless otherwise specified the Ni 110 (Bristol 7 NA) will be replaced with the custom range if necessary.
What's Included:

  • 9V Alkaline Battery
  • Fourth Wire Lead Set
  • Carrying Case, zippered with belt loop
  • Manufacturer's Statement of Calibration Practices
  • Instructions
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Full Review


  • Simulate all your RTD Inputs — Transmitters, recorders, controllers, alarms, indicators, process data acquistion and computer systems using two-three-four-wire hook-ups.
  • Built-In RTD Thermometer — Connect an RTD and instantly read the temperature. Instantly recall the maximum temperatures at any time to check the process.
  • QUIK-CHEK Switch — Instantly recall three output temperatures.
  • Display Directly in °C & °F — Typical accuracy: ±0.013% of Span (±0.2°C/±0.3°F)

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