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M4221

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Millivoltmeter M4221 (M 4221, M-4221)
 
Millivoltmeter M4221 designed for measuring thermoelectric power thermocouple standard gradings PP-1, PR-30/6.
Accuracy class - 2.5;
Dimensions - 80h80h47mm;
Vibration, shock and vibration resistant.
 
Technical characteristics of the devices millivoltmeters M4221:
 
Accuracy class - 2.5;
The main instrument error millivoltmeter M4221 - ± 2,5%;
Failure to return the arrows to zero - not more than 1.7 mm;
Variation millivolt readings M4221 - 2.5%;
Measurement range, number of the scale and the voltage corresponding to a number of the scale shown in Table 1;
 
Table 1 Range, numerical scale marks and the voltage corresponding numerical marks of the instrument scale millivolt M4221
Measuring range
Numerical scale mark, º C
Voltage corresponding to the numerical marks of the instrument scale millivolt M4221
voltage
temperature
 
0mV-13, 129mV
0 º C-1300 º C (PP-1)
200
400
600
800
1000
1200
1300
1.436 mV
3.249 mV
5.220 mV
7.325 mV
9.564 mV
11.923 mV
13.129 mV
0mV-11, 471mV
0 º C-1600 º C (PR-30/6)
300
400
600
800
1000
1200
1400
1600
0.456 mV
0.812 mV
1.821 mV
3.201 mV
4.913 mV
6.902 mV
9.109 mV
11.471 mV
0mV-13, 927mV
0 º C-1800 º C (PR-30/6)
300
400
600
800
1000
1200
1400
1600
1800
0.456 mV
0.812 mV
1.821 mV
3.201 mV
4.913 mV
6.902 mV
9.109 mV
11.471 mV
13.927 mV
Footnote. In parentheses are the type of calibration and characterization of the resistance thermometer (thermocouple).
 
Current full deflection - 1.75 mA;
Switching on millivolt M4221 - with an external resistance of 50 ohms;
Changing readings caused deviation of ambient temperature from normal to any (within the operating temperature range) for every 10 K, does not exceed ± 1,2% of the upper range value;
The length scale of the instrument millivoltmeter M4221 - 69mm;
The scale of the instrument - is uneven with a measuring range covering the full range of evidence;
Dimensions of the device millivoltmeter M4221 - 80h80h47mm;
Weight - 0.15 kg;
Mean time to failure of the device millivoltmeter M4221 - no less than 21,000 hours;
Average life - 6 years;
The manufacturer guarantees that the quality of the instrument millivoltmeter M4221 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.
 


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