7050 Multifunction Process Calibrator
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Mô tả
The 7050 Process Calibrator combines the essential functions of measurement and simulation of volts, millivolts, milliamps, and ohms with the direct readout simulation of thermocouples and RTD’s in °C or °F units.The instrument is microprocessor based and housed in a rugged case designed for use in the field. Input and Output functions are displayed simultaneously and the switch controls allow for easy and precise operation.
Five calibration points are instantaneously accessible through a preset percentage selector and all functions may be generated in a fully programmable ramp format.In addition to the standard calibration facilities the instrument may be used as a signal converter. Any electronic input signal can be converted and output as a proportional signal of 4-20mA, 0-5V or sq. root 4-20mA.
The 7050 is highly adaptable, IPT 68 and ITS 90 curves are accommodated and non-standard thermocouples and RTD’s may be programmed on request.
Thông số kỹ thuật
Voltage / Current / Resistance Generation and Measure
INPUT
Range | Resolution | Accuracy |
---|---|---|
40V | 1mV | 0.03% |
4V | 100μV | 0.03% |
400mV | 10µV | 0.03% |
40mV | 1µV | 0.03% |
Range | Resolution | Accuracy |
---|---|---|
400mA | 10μA | 0.03% |
40mA | 1μA | 0.03% |
4-20mA/0-100% | 0.01% | 0.06% |
Range | Resolution | Accuracy |
---|---|---|
40000Ω | 1Ω | 0.03% |
4000Ω | 0.1Ω | 0.03% |
400Ω | 0.01Ω | 0.06% |
OUTPUT
Range | Resolution | Accuracy |
---|---|---|
-2 to +10V | 1mV | 0.06% |
-100mV to +400mV | 10μV | 0.03% |
-10mV to +40mV | 1µV | 0.03% |
Output Impedance: < 10Ω
Range | Resolution | Accuracy |
---|---|---|
0 to 20mA | 10μA | 0.03% |
4 to 20mA | 1μA | 0.03% |
TX Sim (4 to 20mA) | 0.01% | 0.03% |
Max Load Resistance: 900Ω at 20mA, Open circuit voltage 18- 27V
Range | Resolution | Accuracy |
---|---|---|
0 to 400Ω | 0.01Ω | ± 0.03% |
Excitation Current 0.2 to 2mA
Other Specifications: Loop drive supply: Nominal 24V, current limit set to 30mA
Process Signal and Temperature Measurement & Simulation
Thermocouple Type | Temp Range °C | Accuracy °C |
---|---|---|
J | -210 to 0 0 to 710 710 to 1200 |
± 0.4 ± 0.2 ± 0.9 |
K | -270 to -240 -240 to -180 -180 to -50 -50 to 960 960 to 1370 |
± 3.0 ± 1.2 ± 0.5 ± 0.3 ± 1.7 |
T | -270 to -250 -250 to -180 -180 to -100 -100 to 400 |
± 3.0 ± 1.0 ± 0.5 ± 0.2 |
R | -50 to 0 0 to 70 70 to 400 400 to 1000 1000 to 1760 |
± 3.0 ± 2.0 ± 1.5 ± 1.0 ± 0.8 |
S | -50 to 0 0 to 100 100 to 450 450 to 1760 |
± 2.5 ± 1.8 ± 1.3 ± 0.9 |
B | 200 to 400 400 to 1000 1000 to 1820 |
± 5.0 ± 2.0 ± 1.0 |
N | 0 to 330 330 to 1100 1100 to 1300 |
± 0.4 ± 0.3 ± 1.5 |
E | -230 to 0 0 to 540 540 to 1000 |
± 0.5 ± 0.2 ± 1.5 |
Range °C | Accuracy °C |
---|---|
-200 to 850 | ± 0.3 |
Thermocouple | Linearisation to BS 4937. ITS 90 or IPTS68 selectable. |
Pt100 | Linearisation to BS1904 (1984).DIN43760 (1980). Linearisation Acc: 0.1% of reading for Class A, 38.5Ω F.I |
Excitation current | 0.5mA (Input), 200μA to 2mA (Output). |
CJC | External (Pt100), Internal, Ice point. Accuracy +/-0.2°C at 23°C |
Ramp | Fully programmable continuous and stepped |
Steps | 5 Steps with fully adjustable zero |
Transmitter | Tx function 4-20mA |
Signal Converter | Any input to any output |
Dual Readout | Measure and source simultaneously displayed |
Stability | 100ppm per °C range 0 to 40°C |
Displays | LCD Dot Matrix, 1 line by 20 charx12mm, alphanumeric. |
Dimensions / Weight | W270 x H175 x D250mm, weight 4.5kg |
Optional Extras | Calibration Certificates traceable to NPL and UKAS |
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