Sealey TA310 - Manual (Page 2)

3. SPECIFICATION
Model Number:...............................TA310
captured conductor size:................Ø8mm maximum
Low Battery Indicator:...................... LED red
operating temperature:................... 0°c to 50°c.
storage temperature:...................... -15°c to 50°c.
Battery type:....................................9V Dc
typical Battery Life:..........................80hrs (alkaline)
Weight:.............................................240g
Dimensions (H X W X D):................190mm x 70mm x 38mm
output connection:..........................Banana plugs (red & black)
Effective Measurement Range
20A (output: 100mV/A=1mV/10mA): <2A use Dc or rms Ac for
200mV range of the multimeter, >2A use Dc or rms Ac for 2V
range of the multimeter.
80A (output: 10mV/A): Dc or rms Ac for 200mV range of the
multimeter.
Accuracy
DCA range: 10mA~20A
(output: 100mV/A=1mV/10mA) ± (3% ±5mA)
DC range: 100mA~80A 100mA~40A ± (3% ±0.3A)
(output: 1mV/A) 40A~80A ± (4% ±0.3A)
ACA range: 10mA~20A (output: 100mAV/A= 1mV/10mA)
10mA~20A (40Hz~2kHz) ± (3% ±5mA)
10mA~20A (2kHz~10kHz) ± (4% ±30mA)
10mA~20A (10kHz~20kHz) ± (6% ±30mA)
10A~20A (40Hz~20kHz) ± (8% ±30mA)
AC range 100mA~80A (output: 1mV/A)
100mA~80A (40Hz~2kHz) ± (8% ±30mA)
100mA~80A (1kHz~2kHz) ± (4% ±30mA)
100mA~80A (3kHz~5kHz) ± (6% ±30mA)
40A~80A (40Hz~5kHz) ± (8% ±0.30A)
Load Resistance: 10Ώ typical
Model Number:...............................TA311
captured conductor size:................Ø20mm maximum
Low Battery Indicator:...................... LED red
operating temperature:................... 0°c to 50°c.
storage temperature:...................... -15°c to 50°c.
Battery type:....................................9V Dc
typical Battery Life:..........................80hrs (alkaline)
Weight:.............................................240g
Dimensions (H X W X D):................175mm x 70mm x 38mm
output connection:..........................Banana plugs (red & black)
Effective Measurement Range
40A (output: 10mV/A): Dc or rms Ac for 200mV or 400mV
range of the multimeter.
400A (output: 1mV/A): Dc or rms Ac for 400mV range of the
multimeter.
Accuracy
DCA range: 40A
0~20.00ADC: ± (3.5% + 6 digits)
20.00~40.00ADC: ± (4% + 10 digits)
DC range: 400A
0~300.0ADC: ± (3.5% + 10 digits)
300.0~400.0ADC: ± (4.5% + 10 digits)
ACA range: 40A (50Hz/60Hz)
0~20.00AAC: ± (4.0% + 10 digits)
20.00~40.00AAC: ± (5.0% + 10 digits)
ACA range: 400A (50Hz/60Hz)
0~300.0AAC: ± (4.5% + 10 digits)
300.0~400.0AAC: ± (5.0% + 10 digits)
tA310 & tA311 Issue: 1 - 18/03/13
Original Language Version
© Jack sealey Limited 2013
4. APPLICATION AND OPERATION
4.1. Safety information
4.1.1 this instrument complies with class II, overvoltage cAt II-600V of the En 61010-1 and En 61010-2-032 standards.
4.1.2 Pollution degree 2 in accordance with IEc 664 indoor use.
4.1.3 If the equipment is used in a manner not specified, the protection provided by the equipment may be impaired.
4.1.4 DO NOT clamp around conductors with voltages equal to or exceeding 300V Dc or 240V rms Ac.
4.1.5 DO NOT clamp to bare or damaged conductors, to avoid possible physical injury.
4.2 Procedure for measuring the current in AC and DC circuits.
4.2.1 Insert the black banana plug into the COM socket and the red banana plug into the VΏmA socket of your multimeter (with a minimum
input impedance of 10k ohms).
4.2.2 set the power switch from "off" to the desired range, 40A (output: 1mV/A) or 400A (1mV/A) position. the green LED will illuminate
to indicate the current clamp is switched on.
4.2.3 for current measurement below 40A, set the unit to the 40A range and set the multimeter to 200mV or 400mV range for Ac current
measurements. Alternatively set the multimeter to 200mV or 400mV Dc range for Dc current measurements. If the measured current
exceeds 40A, set the unit to the 400A range.
4.2.4 When performing *Dc current measurements, always press the "Dc ZEro" button on the current clamp until the multimeter reads
zero. clamp the jaws around the current carrying conductor and interpret the reading according to the settings in 4.2.3.
4.2.5 When the 40A range is selected the measured current value (A) can be calculated using this example. If the multimeter reads 100mV,
the measured current is 100mV divided by (10mV/A) = 10A. If the 400A range is selected, the measured current value (A) can be
calculated using this example. If the multimeter reads 50mV, the measured current is 50mV divided by (1mV/A) = 50A.
4.3. *Notes on DC current measurement
4.3.1 In a Dc circuit the output is positive when the current flows from the top face to the underside of the current clamp. Hysteresis can
occur making it difficult to zero the current clamp. When this happens, open and close the jaws several times together with pressing
the "Dc ZEro" button to eliminate this effect.