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.
Specifications
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
SourceV 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
FrequencySource
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
FrequencyRead
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 CRange
°C
Degrees FRange
°F
T/CMaterial
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 CRange
°C
Degrees FRange
°F
T/CMaterial
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°
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