Obsnap Instruments Sdn Bhd
29A, Jalan SS 15/4C,
47500 Subang Jaya,
Selangor, Malaysia.
+603-5621 5786
+603-5621 5829

True RMS Multimeter TES-2900

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True RMS Multimeter TES-2900 Multimeter Electrical Inspection

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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.
Specification

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 (-40 to 2502H) ±1.0%±1(2H)
J -40 to 1200 (-40 to 2192H)
[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 1μA 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 A 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)
3f 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
1000V rms  <2.5V dc  <0.21V dc  <2.2V dc 200μA 20μA 2μA 0.2μA 0.1μA 0.1μA
  1000V rms  <2.5V dc 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 Instructio
n
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