Features :
Record MAX, MIN, MAX-MIN reading. Crest (Instantaneous Peak hold) MAX, MIN, MAX- MIN reading. Relative zero mode. 500,000 counts high resolution stable reading mode.
Backlighted display, dBm readings.T1-T2 differential temperature readings (KM859CF only).  %4-20mA loop current readings. High noise rejection filtered Line Level Frequency mode. Data Hold. Audible & Visible input warning.

OVERLOAD PROTECTION

ACCURACY:
m A & mA : 0.63A/500V, IR 100kA, F fuse for KM857;1A/600V, IR 100kA, F fuse for KM859CF
A : 12.5A500V, IR 10kA, F fuse for KM857;15A/1kV, IR 10kA F fuse for KM859CF
V : 1050Vrms, 1450Vpeak; mV : W & Others : 600VDC/AC rms for KM857 (1050Vrms, 1450Vpeak for KM859CF

TRANSIENT PROTECTION : 8kV (1.2/50 m s surge)

STANDARD ACCESSORIES : Test leads (pair), holster, battery installed, user's manual, banana plug K type Thermocouple x1(KM859CF only), Tilt stand.

OPTIONAL ACCESSORIES : PC interface Kit (RS232 optical adapter cable + RS232 Software floppies)

ELECTRICAL SPECIFICATION

ACCURACY:
± (%Reading + number of digits) or otherwise specified, at 23°C ± 5°C & less than 75% relative humidity. True RMS voltage & current accuracies are specified from 5 % to 100% of range or otherwise specified, Maximum Crest Factor < 5:1 at full scale & <10:1 at half scale, and with frequency component within the specified frequency bandwidth for non-sinusoidal waveforms.

DC VOLTAGE    Range Accuracy    KM859CF   KM857   Accuracy  500.00mV, 5.0000V,  50.000V  0.02%rdg+2dgts  0.03%rdg +  2dgts  500.00V  0.04%rdg+2dgts  0.05%rdg+2dgts  1000.0V  0.05%rdg+2dgts  0.1%rdg+2dgts NMRR : > 60dB @ 50/60Hz CMRR : > 120dB @ DC, 50/60Hz, Rs = 1k Input Impedance : 10M W , 30pF nominal (80pF nominal for 500mV ranges)   CAPACITANCE  Range  Accuracy*  50.000 nF  0.8%+ 3d  50.000 nF  0.8%+ 3d  50.000 nF  1.0%+ 3d  50.000 nF  2.0%+ 3d  50.000 nF  3.5%+ 5d  9999 m F  5.0% + 5d *Accuracies with film capacitor or better

DIODE TESTER  Range  Accuracy  Test Current  (Typical )  Open Circuit  Voltages  5.0000V  1%+ 1d  0.8mA  <3.5 VDC dBm : At 600 , -11.76dBm to 54.25dBm, Accuracy : ± 0.25dB + 2d (@40Hz -- 20kHz) Input Impedance : 10M W , 30pF nominal Selectable reference impedance values of 4, 8, 16, 32, 50, 75, 93, 110, 125, 135, 150, 200, 250, 300, 500, 600, 800, 900, 1000, 1200 Crest mode (Instantaneous Peak Hold) : Accuracy : Specified accuracy ± 100 digits for changes > 0.8ms in duration ~ Hz Line Level Frequency  Range  Accuracy*  50.000 nF  0.8%+ 3d  50.000 nF  0.8%+ 3d Sensitivities (Sine RMS): 0.1V min @500mV range T 1V min @5V range 10V min @50V range 100V min @500V range 900V min @1000V range

AC & AC + DC CURRENT  Range  KM859CF  KM857  Burden Voltage   Accuracy  50Hz - 60Hz 0.5% + 50d 1.0% + 40d  0.15 mV/ m A  500.00 m A  0.15 mV/ m A  5000.0 m A  3.3 mV/mA  500.00 mA  3.3 mV/mA  5.0000 A  0.03 V/A  10.000 A*  0.03 V/A  40Hz - 1kHz        500.00 m A 0.7% + 50d       1.0% + 40d      0.15 mV/ m A  5000.0 m A  0.15 mV/ m A  50.000 mA  3.3 mV/mA  500.00 mA  3.3 mV/mA  5.0000 A  0.03 V/A  10.000 A*  0.03 V/A 1kHz - 10kHz        500.00 m A      0.15 mV/ m A  5000.0 m A      0.15 mV/ m A  50.000 mA      3.3 mV/mA  500.00 mA 2.0% + 50d Unspec'd  3.3 mV/mA  5.0000 A  10.000 A* Unspec'd Unspec'd  0.03 V/A *10A continuous, 20A for 30 second max with 5 minutes cool down interval   OHMS  Range  KM859CF  KM857   Accuracy  500.00  0.07% + 10d 0.1% + 6d  5.0000 k 0.07% +2d  50.000 k  500.00 k  5.0000 M  0.2% + 6d  0.4% + 6d  50.000 M  2.0% +6d  2.0% + 6d       Open Circuit Voltage : < 1.3 VDC (<3VDC for 500 W ranges)   Hz LOGIC LEVEL FREQUENCY  Range  Accuracy  5.0000Hz- 2.00000MHz  0.002%+4d Sensitivities : 2.5Vp square wave   % DUTY CYCLE  Range  Accuracy  0.1% -- 99.99%  3d/kHz + 2d Input Frequency : 5Hz - 500 kHz, 5V Logic family

T1-T2 DUAL TEMPERATURE (KM859CF only)  Range Accuracy  -50.0 °C TO 1000.0°C  0.3% + 1°C  -58.0 °F TO 1832.0°F  0.3% + 2°F Thermocouple range & accuracy not included   % DUTY CYCLE Range Accuracy  0.1% -- 99.99%  3d/kHz + 2d Input Frequency : 5Hz - 500 kHz, 5V Logic family   DC CURRENT Range Accuracy Burden Voltage  500.00 m A  0.15% rdg + 20dgts  0.15 mV/ m A  5000.0 m A  0.1% rdg + 20dgts  0.15 mV/ m A  50.000 mA  0.15% rdg + 10dgts  3.3 mV/mA  500.00 mA  0.1% rdg + 20dgts  3.3 mV/mA  5.0000 A  0.5% rdg + 10dgts 0.03 V/A  10.000 A*  0.5% rdg + 20dgts 0.03 V/A *10A continuous, 20A for 30 second max with 5 minutes cool down interval DC Loop Current %4--20mA 4mA = 0% (zero); 20mA = 100% (span) Resolution : 0.01% Accuracy : ± 25d ))) Audible Continuty Tester Audible threshold : between 20 W and 120 W . Response time < 100 m s

AC & AC + DC VOLTAGE Range KM859CF KM857   Accuracy  20Hz - 45Hz      500.00mV,  5.0000V, 50.000V  1.5%rdg+40dgts  Unspec'd  500.00V, 1000.0V  Unspec'd 45 Hz - 300 Hz  500.00mV  0.3%rdg+20dgts  0.8%rdg+60dgts  5.0000V, 50.000V  0.8%rdg+20dgts  500.00V, 1000.0V  0.4%rdg+40dgts   300Hz - 5kHz 300Hz - 1kHz  500.00mV,  0.3%rdg+10dgts  0.8%rdg+40dgts  5.0000V, 50.000V  500.00V  0.4%rdg+40dgts  2.0%rdg+60dgts  1000.0V  0.8%rdg+40dgts  (300Hz--1kHz)  1.0%rdg+40dgts   5kHz - 20kHz 1kHz - 20kHz  500.00mV,  0.5%rdg+20dgts  1dB* *  5.0000V, 50.000V  0.8%rdg+20dgts  2dB* *  500.00V  0.5%rdg+20dgts  3dB* *  1000.0V  Unspec'd  Unspec'd   20kHz -- 100kHz    500.00mV,  2.0%rdg+40dgts  Unspec'd  5.0000V, 50.000V  4.0%rdg+40dgts* *  500.00V  Unspec'd  1000.0V * From 5% to 10% of range : accuracy % of reading (or in dB) + 80d ** From 5% to 10% of range : accuracy % of reading (or in dB) + 180d ** From 10% to 15% of range : accuracy % of reading (or in dB) + 100d CMRR : > 90dB @ DC to 60Hz, Rs = 1k Input Impedance : 10M , 30pF nominal (80pF nominal for 500mV range) Residual reading less than 50 digits with test leads shorted.