RTD Process Calibrator w/Patented RTD Wire Detection, Model 311 by PIE

• Calibrate with ease with resolution to 0.1 F/C & accuracy to 0.2C
• Source and read multiple RTD curves plus ohms. Platinum 100 ohms: 1.3850, 1.3902, 1.3916,13926. Platinum 1000 ohms: 1.3850, 1.3750. Copper 10 & 50 ohms. Nickel 120 ohms, 0.00 to 4001.0 ohms
• Comes with NIST certificate, rubber boot, carrying case, 2 red & 2 black leads w/banana plugs & spade lugs, 4-AA batteries
• Automatically detect 2, 3, & 4 wire connections
• Guaranteed compatible with all instrumentation
• Instantly select 3 outputs with the EZ-CHECK switch
• Easily find trip points w/2 speed EZ-DIAL knob & auto stepping
• Easily change RTD types and F/C scale
• Verify RTD temperature & output
• Turn on the backlight to easily read in dark areas

The PIE 311 is designed to be easily used. You can check and calibrate all your RTD instruments and measure RTD sensors. You have automatic indication of connections on the display for simple hook-ups. And now you can stop carrying around a decade box and RTD resistance tables. The PIE 311 works with the RTDs you use including Platinum 100 (alpha = 3850, 3902, 3926) and 1000 (alpha = 3850, 3750) Ohm, Copper 10 & 50 Ohm and Nickel 120 Ohm. Easily set any value quickly to within 0.1C with the adjustable digital potentiometer "DIAL" plus store any 3 temperatures for instant recall with the EZ-CHECK switch.

User can quickly choose between 2, 3, 5, 11 and 21 steps to automatically increment the output in 100%, 50%, 25%, 10% or 5% of span. You can also select the step time to match your system from 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 60 seconds.

With patented technology, the PIE 311 trouble shoots sensor connections to find  broken wires. You can connect your 2, 3, or 4 wire RTDs and the PIE 311 will automatically detect connections and measure the RTD in degrees C/F. The secondary display will show the resistance value corresponding to the RTD temperature.

SPECIFICATIONS

ACCURACY: +/-(0.015% of reading + 0.05 Ohms)

TEMPERATURE DRIFT: +/- 0.01% of span outside of 23C +/-10C (73C +/-18F)

OPERATING TEMPERATURE RANGE: -25 to 60C (-10 to 140F)

RH RANGE: 10% <RH <90% (0 to 35C) non-condensing; 10% <RH <70% (35 to 60C) non-condensing

DIMENSIONS: 5.63 x 3.00 x 1.60 in (143 x 76 x 41 mm)

WEIGHT: 12.1 oz (0.34 kg) including boot & 4-AA batteries

BATTERY LIFE: 50 hrs w/ low battery indication (1 hr left)

PROTECTION AGAINST MISCONNECTION: over-voltage protection to 60 V dc (rated for 30 seconds)

DISPLAY: high contrast graphic LCD. LED backlight for use in low lit areas

READ

Excitation Current: 0.9 mA to 401 Ohm, 0.4 mA to 4010 Ohms (nominal)

Normal Mode Rejection: 50/60 Hz, 50 dB

Common Mode Rejection: 50/60 Hz, 120 dB

SOURCE

3 & 4 Wire Accuracy from 1 to 10.2 mA External Excitation Current: +/-(0.015% of reading + 0.05 Ohms)

Below 1 mA of External Excitation Current: +/-(0.015% of Rdg + 0.025 mV/mA Excitation Current +0.05Ohms)

2 Wire Accuracy: add 0.1 Ohms to 3 & 4 wire accuracy

Resistance Ranges, 0.00 to 401.00, 0.0 to 4010.0 Ohms

Allowable Excitation Current Range, 400 Ohms range, 10.2 mA max, steady or pulse/intermittent; 4000 Ohms range, 1 mA max, steady or pulse/intermittent

Pulsed Excitation Current Compatibility, DC to 0.01 second pulse width