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The PIECAL 422 is a fast, easy to use thermocouple calibrator with automatic output stepping. The 422 works with types J, K, T, E, R, S, B, N, G, C, D, L (J-DIN), U (T-DIN) and P (Platinel II) thermocouples. This thermocouple calibrator can calibrate from -13.000 to +80.000 mV.
New! Screw terminal for T/C wire plus miniature T/C socket
General | |
Accuracy | ±(0.008% of Reading + 0.006 mV) |
Cold Junction Compensation | ± 0.09°F (±0.05 °C) - Thermistor traceable to NIST for 11 years |
Millivolt Range | -13.000 to 80.000 mV |
Operating Temperature Range | -25 to 60 °C (-10 to 140 °F) |
Temperature Effect | ≤ ±50 ppm/°C; Cold Junction Sensor ≤ ±25 ppm/°C |
Relative Humidity Range | 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing |
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing | |
Size | L=5.63 x W=3.00 x H=1.60 inches |
Weight | 12.1 ounces (including boot & batteries) |
Batteries | Four “AA” Alkaline 1.5V (LR6) |
Battery Life | 50 Hours |
Optional NiMh Rechargeable battery kit | 120 VAC for North America Only; charger, four NiMh batteries, AC & DC cords [Part # 020-0103] |
Low Battery | Low battery indication with nominal 1 hour of life 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 | |
Input Impedance | > 10 Megohms |
Open Thermocouple Threshold Pulse |
10,000 Ohms nominal < 10 microamp pulse for 300 milliseconds |
Normal Mode Rejection | 50/60 Hz, 50 dB |
Common Mode Rejection | 50/60 Hz, 120 dB |
| Source | |
| Output Impedance | < 0.3 Ohms |
| Source Current | > 20 mA (drives 80 mV into 10 Ohms) |
| Noise | ≤ 4 microvolts p-p for frequencies of 10 Hz or below |
| Thermocouple Ranges & Accuracies | |||||
| Based on ≤ ± (0.008 % of Reading + 0.006 mV) | |||||
T/C | Degrees C Range | °C | Degrees F Range | °F | T/C Material |
J | -200.0 to -180.0 | ±0.3° | -328.0 to -292.0 | ±0.5° | +Iron -Connstantan |
-180.0 to -50.0 | ±0.2° | -292.0 to -58.0 | ±0.4° | ||
-50.0 to 500.0 | ±0.1° | -58.0 to 932.0 | ±0.2° | ||
500.0 to 1200.0 | ±0.2° | 932.0 to 2192.0 | ±0.4° | ||
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K | -230.0 to -100.0 | ±0.6° | -382.0 to -148.0 | ±1.1° | + Chromel® -Alumel® |
-100.0 to 1050.0 | ±0.2° | -148.0 to 1922.0 | ±0.4° | ||
1050.0 to 1371.1 | ±0.3° | 1922.0 to 2500.0 | ±0.5° | ||
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T | -260.0 to -200.0 | ±1.0° | -436.0 to -328.0 | ±1.8° | +Copper -Constantan |
-200.0 to -50.0 | ±0.5° | -328.0 to -58.0 | ±0.9° | ||
-50.0 to 0.0 | ±0.2° | -58.0 to 32.0 | ±0.4° | ||
0.0 to 400.0 | ±0.1° | 32.0 to 752.0 | ±0.2° | ||
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E | -240.0 to -200.0 | ±0.4° | -400.0 to -328.0 | ±0.7° | +Chromel -Constantan |
-200.0 to -100.0 | ±0.2° | -328.0 to -148.0 | ±0.4° | ||
-100.0 to 850.0 | ±0.1° | -148.0 to 1562.0 | ±0.2° | ||
850.0 to 1000.0 | ±0.2° | 1562.0 to 1832.0 | ±0.4° | ||
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R | -18.3 to 250.0 | ±1.2° | -1.0 to 482.0 | ±2.2° | +Pt/13Rh -Platinum |
250.0 to 750.0 | ±0.6° | 482.0 to 1382.0 | ±1.1° | ||
750.0 to 1600.0 | ±0.5° | 1382.0 to 2192.0 | ±0.9° | ||
1600.0 to 1767.8 | ±0.6° | 2192.0 to 3214.0 | ±1.1° | ||
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S | -18.3 to 100.0 | ±1.2° | -1.0 to 212.0 | ±2.1° | +Pt/10Rh -Platinum |
100.0 to 400.0 | ±0.8° | 212.0 to 752.0 | ±1.4° | ||
400.0 to 1700.0 | ±0.6° | 752.0 to 3092.0 | ±1.1° | ||
1700.0 to 1767.8 | ±0.7° | 3092.0 to 3214.0 | ±1.3° | ||
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B | 315.6 to 550.0 | ±1.8° | 600 to 1022.0 | ±3.2° | +Pt/30Rh -Pt/6Rh |
550.0 to 900.0 | ±1.1° | 1022.0 to 1652.0 | ±2.0° | ||
900.0 to 1150.0 | ±0.7° | 1652.0 to 2102.0 | ±1.3° | ||
1150.0 to 1820.0 | ±0.6° | 2102.0 to 3308.0 | ±1.1° | ||
T/C | Degrees C Range | °C | Degrees F Range | °F | T/C Material |
N | -230.0 to -180.0 | ±1.0° | -382.0 to -292.0 | ±1.8° | +Nicrosil -Nisil |
-180.0 to -50.0 | ±0.5° | -292.0 to -58.0 | ±0.9° | ||
-50.0 to 1100.0 | ±0.2° | -58.0 to 2012.0 | ±0.4° | ||
1100.0 to 1300.0 | ±0.3° | 2012.0 to 2372.0 | ±0.5° | ||
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G (W) | 100.0 to 150.0 | ±1.2° | 212.0 to 302.0 | ±2.2° | +Tungsten -W26/Re |
150.0 to 400.0 | ±0.8° | 302.0 to 752.0 | ±1.4° | ||
400.0 to 1700.0 | ±0.4° | 752.0 to 3092.0 | ±0.7° | ||
1700.0 to 2320.0 | ±0.7° | 3092.0 to 4208.0 | ±1.3° | ||
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C (W5) | -1.1 to 1500 | ±0.5° | 30.0 to 2372.0 | ±0.9° | +W5/Re -W26/Re |
1500 to 1900 | ±0.6° | 2372.0 to 3452.0 | ±101° | ||
1900.0 to 2100.0 | ±0.7° | 3452.0 to 3812.0 | ±1.3° | ||
2100.0 to 2320.0 | ±0.9° | 3812.0 to 4208.0 | ±1.6° | ||
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D (W3) | -1.1 to 50.0 | ±0.6° | 30.0 to 122.0 | ±1.1° | +W3/Re -W25/Re |
50.0 to 1400.0 | ±0.4° | 122.0 to 2552.0 | ±0.7° | ||
1400.0 to 1800.0 | ±0.5° | 2552.0 to 3272.0 | ±0.9° | ||
1800.0 to 2320.0 | ±0.9° | 3272.0 to 4208.0 | ±1.6° | ||
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P Platinel® | 0.0 to 1000.0 | ±0.2° | 32.0 to 1832.0 | ±0.4° | +Pd55/Pt31/Au14 -Au65/Pd35 |
1000.0 to 1395.0 | ±0.3° | 1832.0 to 2543.0 | ±0.5° | ||
DIN Colors | |||||
L J-DIN | -200.0 to -50.0 | ±0.2° | -328.0 to -58.0 | ±0.4° | +Iron -Connstantan |
-50.0 to 500.0 | ±0.1° | -58.0 to 932.0 | ±0.2° | ||
500.0 to 900.0 | ±0.2° | 932.0 to 1652.0 | ±0.4° | ||
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U T-DIN | -200.0 to -75.0 | ±0.3° | -328.0 to -103.0 | ±0.5° | +Copper -Constantan |
-75.0 to 100.0 | ±0.2° | -103.0 to 212.0 | ±0.4° | ||
100.0 to 600.0 | ±0.1° | 212.0 to 1112.0 | ±0.2° | ||
Note: Doesn’t include cold junction error of ±0.05°C
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