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Tonghui TH1953 - Page 11

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11
AC voltage, AC current
[2] [3]
Full scale display
Default display
Reading / second
Speed
1199999
119999
7sec./reading
[6]
Slow
1199999
119999
1
[6]
Medium
1199999
119999
1.6
[6]
Fast
1199999
119999
10
Fast
[7]
1199999
119999
50
Fast
[8]
[1]. Reading rate at 60-Hz and 50-Hz operating conditions, turning off auto zero, within a fixed range.
[2]. The number of display digits in the case of automatically displaying the number of digits. If a fixed number of
digits are selected, the number of displayed digits does not change due to the test speed.
[3]. The average speed at which the ADC continuously sampling to the data transmission and display.
[4]. Read data by instructions.
[5]. Add 20μV to DCV; increase resistance by 20 mΩ. When DCA increases by 0.2μA, 100uA, 10mA range, the
range error is increased by 10 times.
[6]. Read stable data. The actual ADC sampling speed is faster than the stable speed.
[7]. External trigger or remote operation, using the default stable delay (automatic delay).
[8]. Use the default maximum value, set the delay to expire.
Chapter 3 Specifications for TH1963
Technical description
Technical indicator assumption
One year calibration cycle
Operating temperature environment: 18 ° C ~ 28 ° C
Calibration temperature T
CAL
=23°C
It is calibrated after warming up for 60 minutes
Accuracy representation: ± (% reading + % range)
[1]
Operating humidity environment: at 0 °C ~ 18 °C (when the resistance range is 10M, 70% RH), 80%RH,
at 28°C 40°C, ≤70%RH
3.1 Specification
DC voltage technical indicators
Range
Resolution
[4]
24 hours
[3]
T
CAL
±C
90 days
T
CAL
±C
1 year
T
CAL
±C
Temperature
coefficient/°C
[2]
100.0000mV
[5]
0.1uV
0.0030+ 0.0030
0.0040 + 0.0035
0.0050 + 0.0035
0.0005 + 0.0005
1.000000V
1uV
0.0020+ 0.0006
0.0030 + 0.0007
0.0040 + 0.0007
0.0005 + 0.0001
10.00000V
10uV
0.0015+ 0.0004
0.0020 + 0.0005
0.0035 + 0.0005
0.0005 + 0.0001
100.0000V
100uV
0.0020+ 0.0006
0.0035 + 0.0006
0.0045 + 0.0006
0.0005 + 0.0001
1000.000V
[6]
1mV
0.0020+ 0.0006
0.0035+ 0.0010
0.0045+ 0.0010
0.0005 + 0.0001

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