Tektronix DMM830 Manuale utente

Handheld Instruments Basic Service

DMM800 Series Digital Multimeters

The Tektronix DMM800 Series digital multimeters provide many features.

Table 1 lists the features of each meter for easy comparison.

Figure 1: DMM870 Digital Multimeter

Table 1: DMM800 series digital multimeter features

Feature DMM830 DMM850 DMM870

40,000 display count

  

Bargraph

  

C entering and zooming

 

True R MS or average AC measurements

  

Autorange

  

Measurements

DC /AC voltage

  

AC + DC voltage

  

DC /AC current

  

DMM800 Series Digital Multimeters

Handheld Instruments Basic Service

Table 1: DMM800 series digital multimeter features (cont.)

Feature DMM870DMM850DMM830

R esistance

  

F requency

  

Diodes and capacitors

  

C ontinuity

  

Duty factor

 

Temperature

 

Decibel



AC volts and amps with Hz display

 

Measurement hold

  

P eak hold



Minimum, maximum, and average values

  

M/M/A time stamp

 

Delta mode

  

HI/LO limits

 

Memory store and recall

  

Backlight



Automatic fuse verification

  

Improper input connection warning

  

Handheld Instruments Basic Service

DMM800 Series Specifications

The characteristics listed in this section apply under the following conditions:

The instrument operates in an 18to 28C ambient environment at less than

75% relative humidity.

The batteries are adequately charged (the battery indicator does not display).

NOTE

. All specifications are warranted unless marked “typical.” Typical

characteristics are not guaranteed but are provided for the convenience of the

user.

Table 2: General specifications

Characteristic Description

LC D display digits 43/4or 33/4

Bargraph segments 40

Display count 40,000 or 4,000

Numeric update rate 1 time/sec (40,000 count)

4 times/sec (4,000 count)

Bargraph 20 times/sec

P olarity display Automatic

O verrange display O L is displayed

Low voltage indicator Battery indicator

Automatic power-off time User selectable (default = 15 minutes)

P ower source One standard 9 V battery, ANS I/NE DA 1604A, IE C 6F 22

Maximum input voltage 1000 V (750 V AC ) C AT II between V and C O M

Maximum floating voltage 1000 V (750 V AC ) C AT II between any terminal and earth ground

Maximum input current 400 mA between



A mA and C O M

10 A continuous between A and C O M (20 A for 30 seconds)

Maximum open circuit voltage C urrent inputs: 600 V between A and C O M and between



A mA and C O M

O verload protection



A mA connector 1 A (600 V) fast blow fuse (type BLS or BBS )

Tektronix part number 159-0337-00

A connector 15 A (600 V ) fast blow fuse (type K T K or K L K )

Tektronix part number 159-0287-00

V connector 1100 Vpk AC + DC

V V

850 Vpk Hz





DMM800 Series Specifications

Handheld Instruments Basic Service

Table 3: Measurement characteristics

Characteristic Description

DC voltage

V ranges 4 V, 40 V, 400 V, 1000 V

mV range 400 mV

Accuracy (% +

counts)

DMM830 DMM850 DMM870

0.2%

0.1%

0.06%

AC voltage

R anges 4 V, 40 V, 400 V, 750 V

Accuracy5(% + 40 counts)

DMM830 DMM850 DMM870

50 to 100 Hz

1.0%

0.8%

0.7%

>100 to 1 kHz

2.5%

2.0%

1.5%

>1 kHz to 10 kHz

– – –

3.5%

2.5%

>10 kHz to 20 kHz

– – – – – –

3.5%

Bandwidth

DMM830 DMM850 DMM870

1 kHz 10 kHz 20 kHz

C rest factor

≤

Input impedance 10 M



paralleled by 100 pF

AC + DC volts S ame as AC (R MS ) + 1.2% + 10 counts

dBm/dB dBm reference = 1 mV into 600



dB reference = 1 V

C urrent

AC and DC ranges 4,000



A, 400 mA , 10 A: 20 A maximum for < 30 seconds

accuracy (% +

counts)

DMM830 DMM850 DMM870

0.5%

0.4%

0.3%

AC accuracy (% + 80 counts)

1.2%

0.9%

Bandwidth (typical)

≤

1 kHz

R esistance

R anges



ranges 400



4 k



40 k



400 k



4 M



40 M



LV ranges 4 k



40 k



400 k



4 M



40 M



Accuracy

DMM830 DMM850 DMM870



(% + 10 counts)

0.5%

0.4%

0.3%

LV (% + 1 count)

2,3

0.8%

0.6%

4 M



400



range

0.8%

0.6%

40 M



range3

DMM800 Series Specifications

Handheld Instruments Basic Service

Table 3: Measurement characteristics (cont.)

Characteristic Description

ompliance voltages (typical) 1 V (



setting)

0.4 V (LV setting)

C ontinuity threshold

Beeper sounds when resistance is approximately 75



or less

Diode test

Test current (typical) 0.6 mA

Test voltage (typical)

≤

3 V

C apacitance

R anges 4 nF, 40 nF, 400 nF, 4



F, 40



F, 400



F, 4 mF, 40 mF

Accuracy3(% + 10 count)

4 nF to 4



1% (delta mode)



F to 40 mF

F requency

R anges 400 Hz, 4 kHz, 40 kHz, 400 kHz, 2 M Hz

Accuracy

(% + 10 count)

400 Hz to 400 kHz

0.01%

2 MHz

0.15%

S ensitivity 0.5 V p-p

Duty factor

Accuracy

(0.1% + 0.05% per kHz) for 5 V input

R ange 15 Hz to 10 kHz (10% to 90% duty factor)

Temperature

R ange – 50



to +980



Accuracy 2



Thermocouple type K

P eak measurements

Accuracy DC volts:

5% + 40 counts of the peak value of a single 1 ms pulse

1Divide counts by 10 in 4000 count mode.

2750 V, 40 M



–LV range unspecified.

34000 count mode only.

4Upper display readout is limited to 10 kHz with reduced accuracy.

5>10% range, 4 V range > 1 V.

6>5% range.

DMM800 Series Specifications

Handheld Instruments Basic Service

Table 4: Physical characteristics

Characteristic Description

Dimensions

Without holster 32 mm

86 mm

185 mm (H

Weight

With battery 370 g (13 oz.)

With battery and holster 600 g (21.2 oz.)

Table 5: Environmental characteristic

Characteristic Description

Temperature

O perating 0



to +50



Nonoperating (storage) – 20



to +60



Humidity

O perating <80%

Altitude

O perating 2,222 m (7290 ft.)

Nonoperating 12,300 m (40354 ft.)

Vibration

O perating 2.66 gR M S , 5 to 500 Hz, 3 axes (10 minutes each)

Nonoperating 3.48 gR M S , 5 to 500 Hz, 3 axes (10 minutes each)

Table 6: Certifications and compliance

Characteristic Description

Declaration of

onformity Meets the intent of Directive 89/336/E E C for E lectromagnetic C ompatibility and Low

Voltage Directive 73/23/E C C for P roduct S afety. C ompliance was demonstrated to the

following specifications as listed in the official J ournal of the E uropean C ommunities:

E N 55011 C lass A: R adiated and C onducted E missions

E N 50082– 1 Immunity: IE C 801– 2 E lectrostatic Discharge

IE C 801– 3 R F R adiated

E N 61010-1: E lectrical equipment safety requirements for

measurement,control, and laboratory use

C ertifications C ertified U L3111-1 and C AN/C S A C 22.2 No. 1010.1-92

DMM800 Series Specifications

Handheld Instruments Basic Service

Table 6: Certifications and compliance (cont.)

Characteristic Description

O vervoltage category C AT III: D istribution level mains, fixed installation

C AT II: Local level mains, appliances, portable equipment

C AT I: S ignal level, special equipment or parts of equipment, telecommunication,

electronics

P ollution Degree 2 Do not operate in environments where conductive pollutants may be present.

DMM800 Series Specifications

Handheld Instruments Basic Service

DMM800 Series Performance Verification

This section contains procedures to verify that the DMM830, DMM850, and

DMM870 Digital Multimeters perform as warranted. If an instrument fails any

of these checks, it needs adjustment and or repair.

The performance verification procedures provide a valid confirmation of

instrument electrical characteristics and function under the following conditions:

The multimeter operates in an 18to 28C (64to 82F) ambient

environment with a relative humidity of less than 75%.

The multimeter stabilizes in the stated ambient temperature for one hour.

The multimeter warms up for five minutes.

For AC measurements, allow the multimeter to settle to its final value before

taking the measurement.

The multimeter remains fully assembled and in the holster.

The DMM800 Series performance verification consists of the checks listed in

Table 7.

Table 7: Performance verification checks

AC Volts C heck

DC Volts C heck

DC M illivolts C heck

AC +DC Volts C heck

F requency C heck

Duty F actor C heck (DM M850 and DM M870)



C heck

Low Voltage



C heck

C ontinuity C heck

Diode C heck

C apacitance C heck

Temperature C heck (DMM 850 and DM M870)

Volts P eak Hold C heck (DM M870)

DC M illiampere C heck

AC Milliampere C heck

DC Ampere C heck

AC Ampere C heck

The performance verification procedure should be performed annually or after

every 2000 hours of operation if used infrequently.

DMM800 Series Performance Verification

Handheld Instruments Basic Service

Test Equipment

The performance verification procedures use external traceable test equipment to

directly check warranted characteristics.

Alternative test equipment must meet or exceed the intended minimum

requirements specified in Table 8. If you substitute equipment, you may need to

modify the procedures.

NOTE

. Before beginning the performance verification procedures, warm up the

test equipment according to the manufacturer’s recommendations.

Table 8: Test equipment

Description Minimum requirements Example product

��

�

��

�

Universal C alibration

S ystem

��

�

��

�

R esolution & accuracy 4 times

greater than the multimeter

display reading.

��

�

��

�

Wavetek 9100 with 9105 lead

set.

AC and DC volts measurement1

AC and DC current measurement

R esistance measurement1

C apacitance measurement

S inewave generation

S quarewave generation

T hermocouple adapter K Type Tektronix AT K 01

C apacitance S tandard O ptional

1Choose 4-wire

measurement setup if available.

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