HTC CM-2007 Manual
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CM-2007
Digital
Clamp
Manual
This meter is precise equipment. Please read this manual
carefully before any operation to avoid any damage to you and
the meter.
CONTENT
SUMMARY...........................1
SAFETY NOTICE...........................1
GENERAL FEATURES..............................1
TECHNICAL FEATURES..............................1
PANEL DESCRIPTION..............................1
OPERATION INSTRUCTIONS..............................1
DCV MEASUREMENT.....................1
ACV MEASUREMENT.....................1
ACA MEASUREMENT.....................1
RESISTANCE MEASUREMENT...........................1
DIODE AND CONTINUITY TEST...............1
NCV MEASUREMENT.....................1
TEMPERATURE MEASUREMENT...........................1
MAINTENANCE..............................1
TROUBLE SHOOTING..............................1
1. SUMMARY
This 3 3/4 Digit Highly Stable clamp meter uses two AAA (1.5V)
batteries. It has a LCD with 18mm digit display, which makes the
reading clearer and the operation more convenient. It can test DCV,
ACV, ACA, resistance, NCV, temperature, diode and continuity test.
This meter also equips data hold function with unit symbol display,
Meter
can work in both auto and manual range, and provides auto power off,
clamp light, backlight and warning functions. To assure high
accuracy and resolution, it adopts an 8-bit microprocessor and a dual
integral A/D convertor IC .It is an ideal tool for labs, factories
radio-technology and household.
2. SAFETY NOTICE
The instrument is designed according to IEC1010-1(EN61010-1),
Pollution 2, CAT III 600V and UL3111-1 standard (safety standard
issued by International Electro technical Committee). Please read the
followings carefully before any operation.
2.1 Introduction for safety symbols:
: Be careful! Operator must refer to manual.
: Low battery indication.
: Warning! Existing High Voltage.
: Dual Insulation.
2.2 Notice:
2.2.1 Please read the manual carefully and strictly obey the
instructions to avoid any human health and meter damage.
2.2.2 To avoid electric shock and damage to the meter, please
disconnect the input signal and remove away the test leads before
opening the cover. Avoid the water leakage into the cover.
2.2.3 DO NOT do any test if the cover hasn't been completely
installed or screws not tightened up.
2.2.4 DO NOT input the value higher than the limit at every range.
2.2.5 DO NOT input any voltage at Resistance range.
2.2.6 Switch OFF the meter after used.
2.2.7 Please take out the batteries for long-time storage to avoid
leakage damage.
2.2.8 Be careful when the testing over DCV 60V and ACV 30V..
2.2.9 To avoid electric shock, please be seriously careful when
nipping the bus bar or something insulated.
3. FEATURES
3.1 GENERAL FEATURES
3.1.1 Display: LCD.
3.1.2 Max. Display: 4000 digits (3 3/4) and auto polarity display.
3.1.3
Clamp Max.open: 28mm
3.1.4 Over-range display: "OL" displayed.
3.1.5 Hold: DATA HOLD.
3.1.6 Relative measurement.
3.1.7 Sampling rate: approx.3 times/sec.
3.1.8 Low battery indicator: " "displayed.
3.1.9 Continuity test: Approx. less than （50±10）Ωbuzzer sounds.
3.1.10 Auto or manual range.
3.1.11 Auto power off.
3.1.12 Power consumption: about 3mA.
3.1.13 Power: 2 × 1.5V batteries (AAA 7#battery).
3.1.14 Working environment: (0～40)℃, relative humidity: <70%.
3.1.15 Dimension: 123mm×270mm×35mm (width×length×height).
3.1.16 Weight: approx. 280g (including batteries).
3.1.17 Accessories: user manual, test leads, temperature sensor banana
probe TP01, 2pcs 1.5V batteries, black pouch, gift box
3.2 TECHNICAL FEATURES
3.2.1 Accuracy:
± (a% × reading data + digits). To assure accuracy, the
environment temperature should be (23±5) ℃, relative humidity be
<70%.
One year accuracy guarantee since production date.
3.2.2 Temperature Coefficient: 0.1* Specified Accuracy/1℃ (<18℃
or >28℃)
3.2.3 DC voltage (DCV)
Range
Accuracy
400mV
±(1.0% reading+5）
4V
40V
±(0.5% reading+5）
400V
Resolution
0.1mV
1mV
10mV
100mV