We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
The PIECAL 820 is a pocket sized high accuracy calibrator that replaces toolbox of single function devices. Designed by the same engineer who designed the Altek 820, the 820 is the next generation of process calibrators. The 820 sources and measures common thermocouples including types J, K, T, E, R, S, B, N, G, C, D, L (J-DIN), U (T-DIN) and P (Platinel II). Need to troubleshoot a process loop? No worries the 820 sources/simulates 0.0 to 24.0 milli-amps and if needed can power a transmitter. There is also a 250 Ohm resistor built-in for Hart smart transmitters. You can also source DC voltage with a 0/10 VDC range and a -10 to 80 milli-volt range. You can read mA loops and DC Voltage to 60 Volts. The source and measure capabilities of the PIECAL 820 are further expanded with source/measure of frequency signals up to 20 KHz. Now you can take on calibrating those flow meters and RPM indicators. Add a 2000 CPM mode for checking totalizers too! Working in the dark? Turn on the handy backlit display to brighten up the area. Working with RTDs? No problem, the 820 handles all common RTDs as well as resistance with sourcing and measure capabilities. Not sure which test lead ports to connect to ? The 820 gives you a hint across the top of the display. Have a bad wire connection? Check to make sure using the built-in continuity function. Doing a lot of the same type of transmitters? The 820 can be set up with 3 outputs with its Quick-Check function, add a 2, 3, 5 or 11 step or ramp. If you are a fan of the classic Altek 820, upgrade to the PIECAL 820, you will not be disappointed. Lastly the 820 is backed by a 3 year warranty and made in the USA (New York State) and backed by a USA committed small manufacturer in PIE.
General | |
Operating Temperature Range | -20 to 60 °C (-5 to 140 °F) |
Storage Temperature Range | -30 to 60 °C (-22 to 140 °F) |
Temperature effect | ≤ ± 0.01 %/°C of Full Scale |
Relative Humidity Range | 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing |
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing | |
Normal Mode Rejection | 50/60 Hz, 50 dB |
Common Mode Rejection | 50/60 Hz, 120 dB |
Noise | ≤ ± ½ Least Significant Digit from 0.1 to 10 Hz |
Size | 5.63 x 3.00 x 1.60 in, 143 x 76 x 41mm (L x W x H) |
Weight | 12.1 ounces, 0.34 kg (including boot & batteries) |
Batteries | Four “AA” Alkaline 1.5V (LR6) |
Optional NiMh Rechargeable battery kit | 120 VAC for North America Only; charger, four NiMh batteries, AC & DC cords [Part # 020-0103] |
Battery Life | Read Functions: ≥ 20 hours Source mA: ≥ 14 hours @ 12 mA into 250Ω Pwr/Meas mA: ≥ 12 hours at 20 mA Source V, Ω, T/C, RTD & Hz: ≥ 20 hours |
Low Battery | Low battery indication with nominal 1 hour of operation left |
Protection against misconnection | Over-voltage protection to 60 vrms (rated for 30 seconds) Red LED indicates OVERLOAD or out of range conditions |
Display | High contrast graphic liquid crystal display with 0.315” (8.0 mm) high digits. LED backlighting for use in low lit areas. |
Read mA | |
Ranges and Resolution | 0.00 to 24.00 mA or -25.0 to 125.0% of 4-20 mA |
Accuracy | ≤ ± (0.03 % of Full Scale) |
Voltage burden | ≤ 2V at 24 mA |
Overload/Current limit protection | 25 mA nominal |
Source mA / Power & Measure Two Wire Transmitters | |
Ranges and Resolution | 0.00 to 24.00 mA or -25.0 to 125.0% of 4-20 mA |
Accuracy | ≤ ± (0.03 % of Full Scale) |
Loop compliance voltage | ≥ 24 DCV @ 20.00mA |
Loop drive capability | 1200 Ω at 20 mA for 15 hours nominal; 950 Ω with Hart Resistor enabled |
mA 2-Wire Transmitter Simulation | |
Accuracy | Same as Source/Power & Measure |
Voltage burden | ≤ 2V at 20 mA |
Overload/Current limit protection | 25 mA nominal |
Loop voltage limits | 2 to 60 VDC (fuse-less protected from reverse polarity connections) |
Voltage Read | |
Range and Resolution | 0.00 to 80.00 mV, 0 to 10.25 V, 0.0 to 60.0 V DC |
Accuracy | ≤ ± 0.03 % of Full Scale |
Input resistance | ≥ 1 MΩ |
Source V dc | |
Ranges and Resolution | -10.00 to 80.00 mV, 0 to 10.25 V |
Accuracy | ≤ ± (0.03 % of Full Scale) |
Source Current | ≥ 24 mA |
Sink Current | > 16 mA |
Output Impedance | < 1 Ohm |
Short Circuit Duration | Infinite |
Thermocouple Source | |
Accuracy | ±(0.03% of Full Scale) [Note: Full Scale is 80.00 mV] |
Cold Junction Compensation | Included in accuracy |
Output Impedance | < 1 Ohm |
Source Current | > 20 mA (drives 80 mV into 10 Ohms) |
Thermocouple Read | |
Accuracy & Cold Junction Compensation | Same as Thermocouple Source |
Input Impedance | > 1 Megohms |
Open TC Threshold; Pulse | 10K Ohms; <5 µamp pulse for 300 milliseconds (nominal) |
RTD, OHMS and Continuity Read | |
Resistance Ranges | 0.0 to 401.0, 0 to 4010 Ohms |
Accuracy | ±(0.03% of Full Scale + 0.075 Ohms) |
Excitation Current | 1.0 mA to 401 Ohms, 0.5 mA to 4010 Ohms (nominal) |
Continuity | 0.0 to 401.0 Ohms; Beeps from 0.0 to 100.0 Ohms |
RTD and OHMS Source | |
Accuracy From 1 to 10.2 mA External Excitation Current
Below 1 mA of External Excitation Current |
±(0.03% of Full Scale + 0.075 Ohms)
±(0.03% of Full Scale+0.075 Ohms + 0.025 mV ) mA Excitation Current |
Resistance Ranges | 0.0 to 401.0, 0 to 4010 Ohms |
Allowable Excitation Current Range | 400 Ohm Range:10.2 mA max; steady or pulsed/intermittent 4000 Ohms Range: 1 mA max; steady or pulsed/intermittent |
Pulsed Excitation Current Compatibility | DC to 0.01 second pulse width |
Frequency Source | |
Ranges | 1 to 2000 CPM, 0.01 to 999.99 Hz, 0.1 to 9999.9 Hz, 0.001 to 20.000 kHz |
Accuracy | ±(0.03% of Full Scale) |
Output Waveform | Square Wave, Zero Crossing -1.0 to +5 V peak-to-peak ±10% |
Risetime (10 to 90% of amplitude) | < 10 microseconds |
Output Impedance | < 1 Ohm |
Source Current | > 1 mA rms at 20 kHz |
Short Circuit Duration | Infinite |
Optical Coupling | Green LED (HZ SYNC) flashes at output frequency |
Frequency Read | |
Ranges & Accuracy | Same as Frequency Source |
Accuracy | ±(0.03% of Full Scale) |
Trigger Level | 1 V rms, dc coupled |
Input Impedance | > 1 Meg Ohm + 60 pF |
| Thermocouple Ranges & Accuracies | |||||
| Based on ±(0.03% of 80 mV) | |||||
T/C | Degrees C Range | °C | Degrees F Range | °F | T/C Material |
J | -200.0 to -150.0 | ±1.2° | -328.0 to -238.0 | ±2.0° | +Iron -Connstantan |
-150.0 to -50.0 | ±0.7° | -238.0 to -58.0 | ±1.3° | ||
-50.0 to 100.0 | ±0.5° | -58.0 to 212.0 | ±0.9° | ||
100.0 to 1200.0 | ±0.4° | 212.0 to 2192.0 | ±0.8° | ||
| |||||
K | -230.0 to -150.0 | ±2.6° | -382.0 to -238.0 | ±4.7° | + Chromel® -Alumel® |
-150.0 to 0.0 | ±1.0° | -238.0 to 32.0 | ±1.8° | ||
0.0 to 1100.0 | ±0.6° | 32.0 to 2012.0 | ±1.1° | ||
1100.0 to 1371.1 | ±0.7° | 2012.0 to 2500.0 | ±1.2° | ||
| |||||
T | -260.0 to -230.0 | ±6.1° | -436.0 to -382.0 | ±11.0° | +Copper -Constantan |
-230.0 to -150.0 | ±2.2° | -382.0 to -238.0 | ±4.0° | ||
-150.0 to 50.0 | ±1.1° | -238.0 to 122.0 | ±2.0° | ||
50.0 to 300.0 | ±0.5° | 122.0 to 572.0 | ±1.0° | ||
300.0 to 400.0 | ±0.4° | 572.0 to 752.0 | ±0.7° | ||
| |||||
E | -240.0 to -150.0 | ±2.5° | -400.0 to -238.0 | ±4.5° | +Chromel -Constantan |
-150.0 to -50.0 | ±0.7° | -238.0 to -58.0 | ±1.1° | ||
-50.0 to 150.0 | ±0.4° | -58.0 to 302.0 | ±0.8° | ||
150.0 to 1000.0 | ±0.3° | 302.0 to 1832.0 | ±0.6° | ||
| |||||
R | -18.3 to 50.0 | ±6.5° | -1.0 to 122.0 | ±11.7° | +Pt/13Rh -Platinum |
50.0 to 500.0 | ±3.7° | 482.0 to 932.0 | ±6.6° | ||
500.0 to 800.0 | ±2.2° | 932.0 to 1472.0 | ±4.0° | ||
800.0 to 1767.8 | ±2.0° | 1472.0 to 3214.0 | ±3.5° | ||
| |||||
S | -18.3 to 50.0 | ±6.1° | -1.0 to 122.0 | ±10.9° | +Pt/10Rh -Platinum |
50.0 to 300.0 | ±3.7° | 122.0 to 572.0 | ±6.6° | ||
300.0 to 600.0 | ±2.6° | 572.0 to 1112.0 | ±4.7° | ||
600.0 to 1767.8 | ±2.3° | 1112.0 to 3214.0 | ±4.2° | ||
| |||||
B | 315.6 to 600.0 | ±7.9° | 600.0 to 1122.0 | ±14.2° | +Pt/30Rh -Pt/6Rh |
600.0 to 1050.0 | ±4.0° | 1122.0 to 1922.0 | ±7.3° | ||
1050.0 to 1400.0 | ±2.5° | 1922.0 to 2552.0 | ±4.6° | ||
1400.0 to 1820.0 | ±2.1° | 2552.0 to 3308.0 | ±3.8° | ||
T/C | Degrees C Range | °C | Degrees F Range | °F | T/C Material |
N | -230.0 to 0.0 | ±4.2° | -382.0 to 32.0 | ±7.5° | +Nicrosil -Nisil |
0.0 to 450.0 | ±0.9° | 32.0 to 842.0 | ±1.7° | ||
450.0 to 1150.0 | ±0.6° | 842.0 to 2102.0 | ±1.1° | ||
1150.0 to 1300.0 | ±0.7° | 2102.0 to 2372.0 | ±1.2° | ||
| |||||
G (W) | 100.0 to 300.0 | ±4.5° | 212.0 to 572.0 | ±8.2° | +Tungsten -W26/Re |
300.0 to 650.0 | ±2.1° | 572.0 to 1202.0 | ±3.7° | ||
650.0 to 1800.0 | ±1.3° | 1202.0 to 3272.0 | ±2.4° | ||
1800.0 to 2320.0 | ±1.9° | 3272.0 to 4208.0 | ±3.5° | ||
| |||||
C (W5) | -1.1 to 200.0 | ±1.8° | 30.0 to 392.0 | ±3.2° | +W5/Re -W26/Re |
200.0 to 1350.0 | ±1.4° | 392.0 to 2462.0 | ±2.6° | ||
1350.0 to 2000.0 | ±1.9° | 1742.0 to 3632.0 | ±3.4° | ||
2000.0 to 2320.0 | ±2.6° | 3632.0 to 4208.0 | ±4.7° | ||
| |||||
D (W3) | -1.1 to 400.0 | ±2.5° | 30.0 to 752.0 | ±4.5° | +W3/Re -W25/Re |
400.0 to 1500.0 | ±1.3° | 752.0 to 2732.0 | ±2.4° | ||
1500.0 to 2000.0 | ±2.3° | 2732.0 to 3632.0 | ±3.0° | ||
2000.0 to 2320.0 | ±2.6° | 3682.0 to 4208.0 | ±4.6° | ||
| |||||
P Platinel | 0.0 to 150.0 | ±0.8° | 32.0 to 302.0 | ±1.5° | +Pd55/Pt31/ Au14 -Au65/Pd35 |
150.0 to 1100.0 | ±0.6° | 302.0 to 2012.0 | ±1.1° | ||
1100.0 to 1395.0 | ±0.8° | 2012.0 to 2543.0 | ±1.5° | ||
| |||||
L J-DIN | -200.0 to 0.0 | ±0.7° | -328.0 to 32.0 | ±1.3° | +Iron -Connstantan |
0.0 to 550.0 | ±0.5° | 32.0 to 1022.0 | ±0.8° | ||
550.0 to 900.0 | ±0.4° | 1022.0 to 1652.0 | ±0.7° | ||
| |||||
U T-DIN | -200.0 to -25.0 | ±1.4° | -328.0 to -13.0 | ±2.6° | +Copper -Constantan |
-25.0 to 100.0 | ±0.7° | -13.0 to 212.0 | ±1.2° | ||
100.0 to 300.0 | ±0.5° | 212.0 to 572.0 | ±0.9° | ||
300.0 to 600.0 | ±0.4° | 572.0 to 1112.0 | ±0.7° | ||
| RTD Ranges & Accuracies | |||||
| RTD Type | Alpha | Degrees C Range | °C | Degrees F Range | °F |
| Pt 100 Ohm DIN/IEC/JIS 1989 Based on ITS-90 | 1.3850 (0.00385) | -200.0 to 120.0 120.0 to 430.0 430.0 to 850.0 | ±0.5° ±0.6° ±0.7° | -328.0 to 248.0 248.0 to 806.0 806.0 to 1562.0 | ±0.9° ±1.0° ±1.2° |
| Pt 100 Ohm (Burns) | 1.3902 (0.003902) | -200.0 to 120.0 120.0 to 430.0 430.0 to 850.0 | ±0.5° ±0.6° ±0.7° | -320.0 to 320.0 320.0 to 860.0 860.0 to 1200.0 | ±0.9° ±1.0° ±1.2° |
| Pt 100 Ohm (Old JIS 1981) | 1.3916 (0.003916) | -200.0 to 170.0 170.0 to 480.0 480.0 to 648.9 | ±0.5° ±0.6° ±0.7° | -328.0 to 338.0 338.0 to 896.0 896.0 to 1200.0 | ±0.9° ±1.0° ±1.2° |
| Pt 100 Ohm (US Lab) | 1.3926 (0.003926) | -200.0 to 180.0 180.0 to 490.0 490.0 to 850.0 | ±0.5° ±0.6° ±0.7° | -328.0 to 356.0 356.0 to 914.0 914.0 to 1562.0 | ±0.9° ±1.0° ±1.2° |
| Pt 1000 Ohm DIN/IEC/JIS 1989 | 1.3850 (0.00385) | -200.0 to 120.0 120.0 to 430.0 430.0 to 850.0 | ±0.5° ±0.6° ±0.7° | -328.0 to 248.0 248.0 to 806.0 806.0 to 1562.0 | ±0.9° ±1.0° ±1.2° |
| Copper 10 Ohm (Minco) | 1.4274 (0.004274) | -200.0 to 260.0 | ±5.1° | -328.0 to 500.0 | ±9.2° |
| Copper 50 Ohm | 1.4274 (0.004274) | -50.0 to 150.0 | ±0.9° | -58.0 to 302.0 | ±1.7° |
| Ni 120 Ohm (Pure) | 1.6720 (0.00672) | -80.0 to 260.0 | ±0.3° | -112.0 to 500.0 | ±0.5° |
| Ni 110 (Bristol 7 NA) | 1.5801 (0.005801) | -100.0 to 260.0 | ±0.3° | -148.0 to 500.0 | ±0.5° |
Write Your Own Review