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PIECAL’S 311Plus Diagnostic RTD and mA Calibrator is designed for the discovery of unseen loop problems. Current that is not controlled by the transmitter or other current control elements will be shown as leakage on the calibrator’s display.
Features
- • Two Calibrators in One!
Calibrate all your RTD instruments AND your milliamp loops with the PIE 311Plus. It has all the functions of a 12 type RTD calibrator and can source 0 to 24 milliamps or simulate a two wire transmitter like a milliamp calibrator. You may also perform stand alone calibrations of two wire transmitters by simultaneously supplying the thermocouple input signal while supplying the 24 volts to power up the transmitter and monitoring the milliamp output signal. Powers HART™ transmitters with built-in 250 ohm resistor simplifying hookups with HART communicators. - • Troubleshoot loop problems
Quickly diagnose ground fault and current leakage with the patented loop diagnostic technology (US Patent# 7,248,058) - • Calibrate directly in temperature (°C & °F)
Stop carrying around a decade box and RTD resistance tables. The PIE 311Plus works with the RTDs you use including Platinum 10, 50, 100, 200, 500 & 1000 Ohm (alpha = 3850), Platinum 100 Ohm (alpha = 3902, 3916, 3926), Copper 10 & 50 Ohm, and Nickel 120 Ohm. Or calibrate from 0.000 to 400.000 and 0.00 to 4000.00 Ohms. For RTDs the fixed or pulsed sensor current is measured by the calibrator. - • Measure RTD sensors
Trouble shoot sensor connections and find broken wires with patented technology. Connect your two, three or four wire RTDs and the PIE 311Plus automatically detects the connections and measures the RTD in degrees C or F. Secondary display shows the resistance value corresponding to the RTD temperature. - • Compatible with ALL process instruments
No competitor’s calibrator is compatible with as many process instruments! Connect directly to the temperature inputs of transmitters, PLCs, DCS & multichannel recorders to verify their outputs or displays. RTD simulation works with older instruments with fixed excitation currents and newer multichannel instruments that switch the excitation current between input channels. - • Checkout all your 4 to 20 mA loops & instruments
With the built-in milliamp calibrator you can check, calibrate and measure all your current signal instruments in a 4 to 20 milliamp loop. It can be used at any access point in your loop. Source & Read 0.000 to 24.000 mA, Simulate a 2 Wire Transmitter or use the PIE 311Plus to simultaneously power your 2 Wire Transmitter and measure its output while simulating the sensor input. - • Easy to use in the Plant, Field or Shop
With the PIE 311Plus you can check & calibrate all your RTD instruments, measure RTD Sensors, and calibrate 4 to 20 milliamp instruments. Automatic indication of connections on the display for simple hookups. Carry it without worry – it comes protected with a rubber boot and rugged, low profile switches. Easy to operate even in dark areas with the backlit display. - • Fast calibration with automatic output stepping
Choose between 2, 3, 5, 11 and 21 steps to automatically increment the output in 100%, 50%, 25%, 10% or 5% of span. Select the step time to match your system from 5, 6, 7, 8, 9, 10, 15, 20, 25, 30 and 60 seconds.
General | |
Operating Temperature | -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 | |
Temperature Drift | ± 0.01% of span outside of 23°C ±10 °C (73°C ±18 °F) |
Size | 5.63 x 3.00 x 1.60 in, 143 x 76 x 41 mm (L x W x H) |
Weight | 12.1 ounces, 0.34 kg (including boot & batteries) |
Batteries | Four “AA” Alkaline 1.5V (LR6) |
Battery Life | 25 Hours RTD, 8 Hours milliamp |
Isolation: Voltage | 60V rms between all milliamp functions and Source/ Read RTD/Ohms |
Normal Mode Rejection | 50/60 Hz, 50 dB |
Common Mode Rejection | 50/60 Hz, 120 dB |
Optional NiMh | Charger, four NiMh batteries [Part # 020-0103] |
Low Battery | Low battery indication with nominal 1 hour of operation left |
Protection against misconnection | Over-voltage protection to 60 V dc (rated for 30 seconds) |
Display | High contrast graphic liquid crystal display. LED backlighting for use in low lit areas. |
Read mA | |
Ranges and Resolution | 0.000 to 24.000 mA or -25.00 to 125.00% of 4-20 mA |
Accuracy | ≤ ± (0.02 % of Reading + 0.003 mA) |
Voltage burden | ≤ 2V at 24 mA |
Overload/Current limit protection | 25 mA nominal |
Source mA / Power & Measure Two Wire Transmitters & PWRM LEAK | |
Ranges and Resolution | 0.000 to 24.000 mA or -25.00 to 125.00% of 4-20 mA |
Accuracy | ≤ ± (0.02 % of Reading + 0.003 mA) |
Loop compliance voltage | ≥ 24 DCV @ 20.00mA |
Loop drive capability | 1200 Ω at 20 mA for 15 hours nominal; |
mA 2-Wire Transmitter Simulation | |
Accuracy | Same as Source/Power & Measure |
Voltage burden | ≤ 2V at 20 mA |
Overload/Current limit protection | 24 mA nominal |
Loop voltage limits | 2 to 60 VDC (fuse-less protected from reverse polarity connections) |
Read Ohms & RTD | |
Accuracy | ±(0.015% of Reading + 0.05 Ohms) |
Resistance Ranges | 0.00 to 401.00, 0.0 to 4010.0 Ohms |
Excitation Current | 0.9 mA to 401 Ohms, 0.4 mA to 4010 Ohms (nominal) |
Source Ohms & RTD | |
3 & 4 Wire Accuracy From 1 to 10.2 mA External Excitation Current
Below 1 mA of External Excitation Current 2 Wire Accuracy |
±(0.015% of Reading + 0.05 Ohms)
0.025 mV
Add 0.1 Ohms to 3 Wire & 4 Wire Accuracy |
Resistance Ranges | 0.00 to 401.00, 0.0 to 4010.0 Ohms |
Allowable Excitation | 0 to 400 Ohm: 10.2 mA max; steady or pulsed/intermittent |
Pulsed Excitation | DC to 0.01 second pulse width |
RTD Ranges & Accuracies
Table based on 3 & 4 Wire RTD Accuracy:
≤ ± (0.015 % of Reading +0.05 Ohms)
[Read based on 1.0 mA of fixed excitation current]
RTD | Alpha | Degrees C | °C | Degrees F | °F |
Pt 100 Ohm | 1.3850 | -200.00 to -150.00 | ±0.1° | -328.0 to -238.00 | ±0.2° |
Pt 10 Ohm | 1.3850 | -200.00 to -120.00 | ±1.2° | -328.00 to -184.00 | ±2.2° |
Pt 50 Ohm | 1.3850 | -200.00 to 200.00 | ±0.3° | -328.00 to 392.00 | ±0.6° |
Pt 200 Ohm | 1.3850 | -200.00 to -120.00 | ±0.1° | -328.00 to -184.00 | ±0.1° |
Pt 500 Ohm | 1.3850 | -200.00 to -90.00 | ±0.1° | -328.00 to -194.00 | ±0.1° |
Pt 1000 Ohm | 1.3850 | -200.00 to 170.00 | ±0.1° | -328.00 to 338.00 | ±0.1° |
Pt 100 Ohm | 1.3902 | -195.61 to -100.00 | ±0.1° | -320.10 to -148.00 | ±0.3° |
Pt 100 Ohm | 1.3916 | -200.00 to -140.00 | ±0.1° | -328.00 to -220.00 | ±0.2° |
Pt 100 Ohm | 1.3926 | -200.00 to -140.00 | ±0.1° | -328.00 to -220.00 | ±0.2° |
Copper 10 | 1.4274 | -200.00 to -150.00 | ±1.2° | -328.00 to -238.00 | ±2.2° |
Copper 50 | 1.4280 | -50.00 to 150.00 | ±0.3° | -58.00 to 302.00 | ±0.5° |
Ni 120 Ohm | 1.6720 | -80.00 to 260.00 | ±0.1° | -112.00 to 500.00 | ±0.2° |
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