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7050 Process and Thermocouple Calibrator0 pages
Time Electronics
7050 Process and Thermocouple Calibrator
• Measure (3 ranges) up to 40V, 400mA, 40kΩ
• Output voltage (3 ranges) to 10V, 1μV resolution
• Output current (3 ranges) to 20mA, 1μA resolution
• Output resistance: 0 to 400Ω, 0.01Ω resolution
• Thermocouple measure/simulate: J, K, T E, R, S, B, N
,
• RTD measure and simulate: PT100
• Ramp function
• Battery or mains operation
• Housed in robust field case
DESCRIPTION
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.
Specifations – Voltage / Current / Resistance Generation and Measure
INPUT
Voltage
Range
OUTPUT
Voltage
Range
Resolution
Accuracy
Resolution
Accuracy
40V
1mV
0.03%
-2 to +10V
1mV
0.06%
4V
100μV
0.03%
-100mV to +400mV
10μV
0.03%
400mV
10µV
0.03%
-10mV to +40mV
1µV
0.03%
40mV
1µV
0.03%
Resolution
Accuracy
10μA
0.03%
40mA
1μA
0.03%
4-20mA/0-100%
0.01%
0.06%
Current
Range
400mA
Resistance
Range
Output Impedance: < 10Ω
Current
Range
Resolution
Accuracy
10μA
0.03%
4 to 20mA
1μA
0.03%
TX Sim (4 to 20mA)
0.01%
0.03%
0 to 20mA
Max Load Resistance: 900Ω at 20mA, Open circuit voltage 18- 27V
Resolution
Accuracy
40000Ω
1Ω
0.03%
4000Ω
0.1Ω
0.03%
400Ω
0.01Ω
0.06%
Resistance
Range
0 to 400Ω
Other
Loop drive supply: Nominal 24V, current limit set to 30mA
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Resolution
Accuracy
0.01Ω
± 0.03%
Excitation Current 0.2 to 2mA
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