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PIE 512s
Read & Source 7 Type Plus Ω RTD Calibrator With Auto-Stepping
see: PIE RTD Type Calibrators

  • Accurate to ±0.25°C (±0.4°F) with 0.1° Resolution
  • Simulate/Read RTD sensors
  • Calibrate/Read directly in temperature for your RTD curve or Ω
  • Select from 7 RTD types or Ω (custom curves available)
  • Guaranteed to Work with All Pulsed Instruments
  • Works with a wide variety of transmitters including popular Rosemount and Honeywell Models
  • Compatible with devices using pulsed excitation currents including PLCs, DCS, Recorders, and all others
  • EZ-Dial Knob Easily adjust output for full temperature range by 0.1°
  • Pressing down and turning will select a faster dialing speed
  • EZ-Check Switch for easy 0% and 100% span adjustments
  • Store new EZ-Check values by pressing the EZ-Dial Knob
  • Uses a standard 9V Alkaline Battery
  • Superior battery life of 45 hours under typical continuous usage
  • Easy access to battery compartment
  • Lightweight, Rugged and Reliable
  • Small, tough and protected to 60V
Click here for a larger image - PIE 512S Read & Source 7 Type Plus Ω RTD Calibrator with Auto-steppingClick here for a larger image - PIE 512 Read & Source 7 Type Plus Ω RTD Calibrator with Auto-stepping
PIE 512 Shown
Product Information
Datasheet 211 KB PDF
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The Practical Instrument Electronics Model 512S RTD Calibrator provides direct temperature calibration to all types of instruments such as transmitters, recorders, controllers, alarms, data acquisition, and computer systems. Also, the Model 512S reads RTD outputs and displays in temperature. It is compatible with pulsed systems and transmitters (like the Rosemount 3144.) 2, 3, or 4 wire connections are detected automatically. The PIECAL 512S is a superior replacement for decade boxes, eliminating the need for lugging around large equipment and the possibility of misreading RTD tables.

Select from 8 RTD types to source/read in °C or °F with 0.1 ° resolution. Or, select Ω for direct resistance source/read capability. Use the EZ-Check Switch to quickly switch between three stored temperature / Ω outputs. The Auto step mode allows the end user to select the high, mid and low test points along with step size and time. In read mode, the EZ-Check Switch recalls minimum and maximum readings. Store/Clear memory with a press of the EZ-Dial Knob.

The PIE 512-S offers the highest performance and functions in its class by exceeding the accuracy and functions of many higher priced RTD calibrators. It is a low cost solution for checkout and calibration of all RTD instruments in the field, shop or control room. Contact Practical Instruments Electronics for custom RTD curves, ranges, or special requirements not provided by the Model 512 S.
Function Description
RTD Read  Specifications
Excitation Current 1 mA nominal
RTD Curve Simulation Specifications (ITS-90 Curves):
Allowable Excitation Current ±(0.015% of Setting in Ω + 0.05Ω)
for accuracies below 100µA add ±10µV/Excitation Current (units are in Ω)
Pulsed Excitation Current Compatibility DC to 0.01 second pulse widths
General Specifications:
(Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration)
Temperature Range -25 to 60 °C (-10 to 140 °F)
Relative Humidity Range 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing
Size 4.9 X 3.15 X 1.82 inches (125.5 X 80 X 46.2 mm)
Weight 9.1 oz (258 grams)
Battery 9V Alkaline provides 45 hours of continuous use
Miscellaneous Low battery indication with nominal 1 hour of operation left
Protection to 60V DC or AC peak up to 30 seconds in duration
High contrast graphic liquid crystal display with 0.357” (9.07 mm) high digits
Ordering Information
Model Description Buy Online Price
512SPIECAL PIE 512SPIECAL Read and Source 7 Type Plus ohms RTD Calibrator with Auto-Stepping Discontinued see:
PIE RTD Type Calibrators
512SEW PIE 512SEW Read and Source 7 Type Plus ohms RTD Calibrator with Auto-stepping and 6 Year Extended Warranty Discontinued see:
PIE RTD Type Calibrators
512SRW PIE 512SRW Read and Source 7 Type Plus ohms RTD Calibrator with Auto-Stepping and 3 Year Replacement Warranty Discontinued see:
PIE RTD Type Calibrators
Included Accessories
  • 1 - Test Leads
  • 1 - NIST Calibration
Optional Accessories
020-0205 PIE 020-0205 Carrying case with PIE Logo for all RTCD and y/C RTD Models  Discontinued