HoldPeak 90B Operator's Manual

90B 6000 DIGITS AUTO CAL
DIGITAL MULTIMETER OPERATOR'S MANUAL
1. Overview
The multimeter is characterized at slim size, portable, stable performance and
anti-dropping capacity. Using 6000 digits LCD monitor with character 22mm high,
they offer clear readings. With overall circuitry design centering on large-scale IC
A/D converters in conjunction and over-load protection circuit, the meters give
excellent performance and exquisite making as a handy utility instrument.
The meters can be used to measure DC & AC voltage, DC & AC current, resistance,
capacitor, Frequency, positive diode voltage fall,Battery power, Temperature and
Continuity.
2. Panel Layout
①LCD Display: 6000 digits, full function symbol display
②SELECT key:This key work on the "CAP
resistance, diode ,continuity test, on the voltag or current range,change to DC/AC,
and ℃/℉ range , change to ℃/℉
③ Hz/DUTY Key: In "ACV/ACA" or "Hz" range, push the key, you can measure
the Hz ,push again, can measure the duty.
④ HOLD/ Back Light key： In any range, push the key, the present display value will
be locked and the " H " symbol will appear, push it again to exit HOLD and the "
H"symbol disappear. Press "HOLD" button more than 2 seconds, the back light will
light, press it more than 2 seconds again, the back light will light off.
⑸ MAX/MIN key：Push the key to select MAX mode, push it again to change MIN
mode, push once again to change max-min,press the key for more than 2 seconds
to go back auto range mode. And Push the key to change manual range mode .But
in Hz/Duty and Capacitance measurement, it can not use.
⑥REL Key: Pressing this button, the meter enters relative measuring mode, "REL"
is displayed on the LCD and the present reading becomes the reference value and
displayed on the display. Relative measurement REL△ =measurement
value-Reference value.
⑦ RANGE Key: Pressing this button, the meter enters mancal range mode, press
it more than 2 seconds again, return to auto mode
⑧Rotary Switch: use this switch to select functions and ranges
⑨ Illuminative window
⑩V ΩInput Jack、10A Input Jack、mA Input Jack 、COM Input Jack
3. Safety Information
3-1 The meters are designed according to IEC-1010 concerning electronic
measuring instruments with an over-voltage category 600V (CAT IV)/1000V(CAT III)
and pollution 2.
3-2 Follow all safety and operating instructions to ensure that the meter is used
safely and is kept in good operating condition.
3-3 safety symbols:
important safety information, refer to the operating manual.
Dangerous voltage may be presence.
Double insulation (protection Class II)
4. Special Cautions for Operation
4-1 The meters can be safe only according to standard procedures when used in
conjunctions with the supplied test leads. To replace damaged test leads with only
the same model or same electric specifications.
4-2 To avid risk of electric shock, do not use the meters before the cover is in place.
4-3 The Rotary switch should be right position for the testing.
4-4 To avoid electric shock and damaging the instruments, the input signals are
forbidden to exceed the specified limits.
4-5 When measuring TV set or switched power, attention should be paid to the
possible pulses that may bring destruction to the circuit.
4-6 Rotary switch position is forbidden to be changed at random during
measurement.
4-7 Take caution against shock in the course of measuring voltage higher than DC
60V & AC 30V.
4-8 Protection fuse should be replaced only with same type and same specification.
4-9 After operation is finished, set function switch at OFF range to save battery power.
4-10 If the meter is without usage for long time, take out battery to avoid damage
by battery leakage.
5. GENERAL SPECIFICATIONS
5-1 Max Voltage between input terminal and Earth Ground: CAT Ⅳ 600V
5-2 Over-range Indication: display "OL" for the significant digit.
5-3 Automatic display of negative polarity "_" .
5-4 Low Battery Indication: „ ‟ displayed
5-5 Max LCD display: 6000 digits; capacitor, Frequency range: 9999 digits
5-6 auto ranges
5-7 Fuse protection: F-800mA/1000V (Ø 6x32mm) F-10A/1000V (Ø 10x38mm)
Ω" range , Push the key to choose
5-8 Power Supply: 9V Zinc-carbon battery
5-9 auto power-off：15minites,Push SELECT Key,Atuo power Off disable;
5-10 Operating Temp.: 0℃ to 40℃ (relative humidity <85%)
5-11 Storage Temp.:-10℃ to 50℃ ((relative humidity <85%)
5-12 Guaranteed precision Temp.: 23± 5 ℃ (relative humidity <70%)
5-13 Dimension: 193× 88× 41mm
Weight: approx.320g (including battery)
6. Testing Specifications
Accuracy is specified for a period of year after calibration and at 18℃ to 28℃
(64℉ to 82℉) with relative humidity to 70%.
6-1 DC Voltage
range resolution
600mV 0.1mV
6V 1mV
60V 10mV
600V 100mV
1000V 1V
-- Input Impendence: 10MΩ, 60mV, 600mV range ＞100 MΩ
-- Overload protection: 250V for 400mV range, DC 1000V or AC 750V for other
ranges
6-2 AC Voltage(True RMS)
Range Resolution
600mV 0.1mV ± (2.5% of rdg +15 digit )
6V 1mV
60V 10mV
600V 100mV
750V 1V
1. input impedance : > 10MΩ ; 60mV, 600mV range ＞100 MΩ
2. Overload protect : 250V for 400mV range, DC 1000V or AC 750V for other
ranges
6-3 DC Current
range Resolution
600uA 0.1μA
6000uA 1μA
60mA 10μA
600mA 100μA
6A 1mA
10A 10mA
Overload protection:
4A &10A ranges: F10A/1000V fuse
Other ranges: F500mA/1000V fuse
10A up to 10 seconds
6-4 AC Current
range Resolution
600uA 0.1μA
6000uA 1μA
60mA 10μA
600mA 100μA
6A 1mA
10A 10mA
Overload protection:
6A &10A ranges: F10A/1000V fuse
Other ranges: F800mA/1000V fuse
10A up to 10 seconds
Frequency Range: 40 to 1KHz
6-5 Resistance
range Resolution
600Ω 0.1Ω
6KΩ 1Ω
60KΩ 10Ω
600KΩ 100Ω
6MΩ 1KΩ
60MΩ 10KΩ
-- over-load protection: 600V effective value
6-7 Capacitor
range Resolution
9.999nF 0.001nF
99.99nF 1pF
999.9nF 0.1nF
9.999μF 1nF
99.99μF 10nF
999.9μF 0.1μF
9.999mF 1μF
99.99mF 10μF
-- over-load protection: 600V effective value
6-8 Frequency Testing
range resolution
9.999Hz 0.001Hz
99.99Hz 0.01Hz
999.9Hz 0.1Hz
9.999kHz 1Hz
accuracy
± (1.2% of rdg + 5 digit )
± (0.8% of rdg +5 digits)
± (0.8% of rdg +5 digits)
± (0.8% of rdg +5 digits)
± (1.5% of rdg +10 digits)
Accuracy Sensitivity
40HZ-1KHZ
± 1.0% of rdg+10 digits 40HZ-400HZ
± 1.0% of rdg+10 digits 40HZ-400HZ
± 1.0% of rdg+10 digits 40HZ-400HZ
± 1.0% of rdg+10 digits 40HZ-400HZ
accuracy
± (1.0% of rdg +5 digits)
± (1.0% of rdg + 5 digits)
± (1.0% of rdg +5 digits)
± (1.0% of rdg +5 digits)
± (1.5% of rdg + 5 digits)
± (1.5% of rdg + 5 digits)
accuracy
± (1.5% of rdg +10digits)
± (1.5% of rdg + 10 digits)
± (1.5% of rdg +10 digits)
± (1.5% of rdg + 10 digits)
± (2.0% of rdg +10 digits)
± (2.0% of rdg +20 digits)
accuracy
± (1.2% of rdg +10 digits)
± (1.2% of rdg +5 digits)
± (1.2% of rdg +5 digits)
± (1.2% of rdg +5digits)
± (1.5% of rdg +10 digits)
± (2.5% of rdg + 10 digits)
accuracy
± (3.0% of rdg +20 digits)
± (2.5% of rdg +10digits)
± (2.5% of rdg +10digits)
± (2.5% of rdg +10digits)
± (3.0% of rdg +10 digits)
± (3.0% of rdg +25 digits)
± (3.5% of rdg +25 digits)
± (3.5% of rdg +25 digits)
Accuracy
± (0.5% of rdg + 15 digits)