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                TES-2900

                True RMS MULTIMETER

                Product Features
                • Variable – frequency drive (VFD) V & Hz measurement.
                • Lo – Z voltage measurement to drain ghost voltages.
                • Check 3? phase sequence.
                • Voltage harmonic ratio measurement.
                • Smart ohm for ground resistance measurement.
                • Data hold & Auto hold mode.
                • Max/Min/Avg record mode.
                • Relative value display.
                • Frequecy count. (Auto-Range)
                • Temperature type K, J measurement.
                • Capacitance measurement.
                • Data memory & read function.
                True RMS MULTIMETER
                SPECIFICATIONS :
                Accuracies are ±(...% of reading + ...digits) at 23℃ ± 5℃,below 80% RH.
                AC Voltage 
                AC conversions are ac-coupled and valid from 3 % to 100 % of range. 
                Range
                Resolution
                Accuracy
                45 – 65Hz
                15 – 200Hz
                200 – 440Hz
                440Hz – 1kHz
                1 – 5kHz
                5 – 20kHz
                999.9mV
                0.1mV
                ±(0.7%+4)
                ±(1.0 % + 4)
                ±(2%+4)
                ±(2%+20)
                    [1]
                9.999V
                0.001V
                99.99V
                0.01V
                ±(0.7%+2)
                ±(2%+4)
                    [2]
                Unspecified
                999.9V
                0.1V
                Unspecified
                VFD
                ±(1.0%+4)
                +1.0%+4
                -6.0%-4  [3]
                Unspecified
                Unspecified
                Unspecified
                [1] Below 10 % of range, add 12 counts. 
                [2] Frequency range: 1 to 2.5kHz 
                [3] Specification increases from -1% to -6% at 440Hz when filter is used.

                 DC Voltage, Conductance, and Resistance

                Function
                Range
                Resolution
                Accuracy
                mV dc
                999.9mV
                0.1mV
                ±(0.1% + 1)
                V dc
                9.999V
                0.001V
                ±(0.05% + 1)
                99.99V
                0.01V
                999.9V
                0.1V
                Ω
                999.9Ω
                0.1Ω
                ±(0.2% + 2)   [2]
                9.999kΩ
                0.001kΩ
                ±(0.2% + 1)
                99.99kΩ
                0.01kΩ
                999.9kΩ
                0.1kΩ
                9.999MΩ
                0.001MΩ
                ±(1% + 1)
                50.00MΩ
                0.01MΩ
                ±(5% + 1)   [1]
                nS
                99.99nS
                0.01nS
                ±(5% + 10)   [1,2]
                [1] Add 0.5% of reading when measuring above 30MΩ in the 100MΩ range, and 20 counts below 33nS in the 100nS range.
                [2] When using the rel function to compensate for offsets.Smart Ω: ±(1% + 2).

                 

                Temperature 

                Thermocouple Type
                Range
                Accuracy
                K
                -40 to 1372°C (-40 to 2502°F)
                ±1.0%±1°C(2°F)
                J
                -40 to 1200°C (-40 to 2192°F)
                [1] Does not include error of the thermocouple probe.
                [2] Accuracy specification assumes ambient temperature stable to ± 1°C.
                     For ambient temperature changes of ± 5°C, rated accuracy applies after 2 hour.

                  AC Current (45Hz to 10kHz)

                Function
                Range
                Resolution
                Burden Voltage
                Accuracy
                μA ac
                999.9μA
                0.1μA
                100μV/μA
                ±(1.0 % + 2)
                9999μA
                A
                100μV/μA
                mA ac
                99.99mA
                0.01mA
                3.6mV/mA
                400.0mA
                0.1mA
                3.6mV/mA
                A ac
                9.999 A
                1mA
                50V/A
                AC conversions is true rms responding, and valid from 3% to 100% of range, except 400 mA range.
                (5% to 100% of range) and 10A range (15% to 100% or range).
                 
                DC Current 
                Function
                Range
                Resolution
                Burden Voltage
                Accuracy
                μA dc
                999.9μA
                0.1μA
                100μV/μA
                ±(0.2% + 4)
                9999μA
                1μA
                100μV/μA
                ±(0.2% + 2)
                mA dc
                99.99 mA
                0.01 mA
                3.6 mV/mA
                ±(0.2% + 4)
                400.0 mA
                0.1 mA
                3.6 mV/mA
                ±(0.2% + 2)
                A dc
                9.999 A
                1 mA
                50 mV/A
                ±(0.2% + 2)
                 
                Capacitance 
                Range
                Resolution
                Accuracy
                10.00nF
                0.01nF
                ±(2.0% + 2) [1]
                100.0nF
                0.1nF
                1.000μF
                0.001μF
                ±(2.0% + 2)
                10.00μF
                0.01μF
                100.0μF
                0.1μF
                9999μF
                1μF
                [1] With a film capacitor or better, using the rel mode to zero residual.
                Diode 

                Range

                Resolution

                Accuracy

                2V

                0.001V

                ±(1.0% + 1)

                  
                Phase Sequence Indication

                Range

                Frequency Response

                Overload Protection

                80V to 480V

                50Hz / 60Hz

                1000V

                 
                Frequency Counter Specifications

                Range

                Resolution

                Accuracy

                99.99Hz

                0.01Hz

                ±(0.1% + 1)

                999.9Hz

                0.1Hz

                9.999 kHz

                0.001kHz

                99.99 kHz

                0.01kHz

                999.9 kHz

                0.1kHz

                9999 kHz

                1kHz

                From 5Hz to 99.99kHz, pulse width > 5μs.

                 
                Frequency Counter Sensitivity
                Input Range
                Approximate Voltage Sensitivity (rms sine wave) [ 1 ]

                5Hz to 100Hz

                100Hz to 100kHz

                999.9mV

                50mV VFD

                50mV

                9.999V

                500mV VFD

                500mV

                99.99V

                5V VFD

                5V

                999.9V

                50V VFD

                50V

                Input Range
                Approximate Current Sensitivity (rms sine wave) 

                5Hz to 100Hz

                100Hz to 10kHz

                999.9μA

                50μA  VFD

                50μA

                9999μA

                500μA

                500μA

                99.99mA

                5mA  VFD

                5mA

                400.0mA

                  50mA

                50mA

                9.999A

                1A  VFD

                1A

                [1] Maximum input = 10 x range (1000V maximum, 2 x 107 V-Hz product maximum)

                VFD : Enabled Low Pass filter

                 
                Hz Logic Level Frequency

                Range
                Sensitivity
                5Hz to 9999Hz
                3.0Vp square wave
                 
                Input Characteristics 
                Function
                Overload
                Protection
                Input
                Impedance
                (nominal)
                Common Mode
                Rejection Ratio
                (1 kΩ unbalance)
                Normal Mode Rejection
                 
                1000V rms
                10MΩ<100pF
                > 120dB at dc,
                50Hz or 60Hz
                > 60dB at 50Hz or 60Hz
                 
                1000V rms
                > 120dB at dc,
                50Hz or 60Hz
                > 60dB at 50Hz or 60Hz
                 
                1000V rms
                10MΩ<100pF
                (ac-coupled)
                > 60dB, dc to 60Hz
                 

                 
                 
                Open Circuit
                Test Voltage
                Full Scale Voltage
                Typical Short Circuit Current

                To 1MΩ

                >1MΩ or
                100nS
                1kΩ
                10kΩ
                100kΩ
                1MΩ
                10MΩ
                50MΩ
                     Ω
                1000V rms
                 
                 
                 
                200μA
                20μA
                2μA
                0.2μA
                0.1μA
                0.1μA
                 
                1000V rms
                 
                2.0V dc
                200μA typical
                 
                 
                General Specifications:
                Power Source: Single standard 9-volt battery, NEDA 1604, JIS 006P, IEC 6F22.
                Weight: Approx. 470g
                Size: 193mm(L)×91mm(W)×53mm(H), (7.6”L×3.6”W×2.1”H)
                Accessories : Test leads, Battery, Operating Instruction

                You can get an accurate ground resistance measurement in the presence of offset voltage.

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