Datasheet

Digital Multimeters — Tektronix DMM4050 and DMM4040
Continuity
Characteristic
Description
Continuity Threshold Selectable between 1  and 1000 
Test Current
1mA
Response Time
300 S/s with audible tone
Accuracy is given as ±(% measurements + % of range)
Range 24 Hour
(23 °C ±1 °C)
90 Days
(23 °C ±5 °C)
1 Year
(23°C±5°C)
Temperature
Coefficient/°C
Outside 18
to 28 °C
1000.0 
0.002 + 0.01 0.008 + 0.02 0.01 + 0.02 0.001 + 0.002
Diode Test
Characteristic
Description
Test Current
100 Aor1mA
Response Time
300 S/s with audible tone
Accuracy is given as ±(% measurements + % of range)
Range 24 Hour
(23°C±1°C)
90 Days
(23 ° C ±5 °C)
1 Year
(23°C±5°C)
Temperature
Coefficient/°C
Outside 18
to 28 °C
5.0000 V 0.002 + 0.002 0.008 + 0.002 0.01 + 0.002 0.001 + 0.002
10.0000 V 0.002 + 0.001 0.008 + 0.002 0.01 + 0.002 0.001 + 0.002
Measurement
Rates (IEEE488*
16
)
Measurements/Second*
13
Function Digits
Setting
Integration Time
60 Hz (50 Hz)
DMM4040 DMM4050
6½ 100 NPLC 1.67 (2) s 0.6 (0.5) 0.6 (0.5)
6½ 10 NPLC 167 (200) ms 6 (5) 6 (5)
5½ 1 NPLC 16.7 (20) ms 60 (50) 60 (50)
5½ 0.2 NPLC
3.3 ms 270 270
DC Volts, DC Current, and
Resistance
4½ 0.02 NPLC
500 s 995 995
6½
3Hz 0.47 0.47
6½
20 Hz 1.64 1.64
AC Voltage and AC
Current*
14
6½ 200 Hz*
15
4.5 4.5
6½
1s 1 1
5½
100 ms 9.8 9.8
Frequency and Period
4½
10 ms 80 80
Capacitance 6½
NA 2
*
13
Typic
al measurement rates with auto-zero off, delay = 0, display off, auto range off and math off.
*
14
Maximum measurement rates for 0.01% of AC step. When DC input varies, additional settling delay is required.
*
15
For remote operation or external trigger using default settling delay.
*
16
Speed
s available in OutG SW 1.0.700.18 or higher. Note that the measurement rates for RS232 can vary depending on the baud rate chosen. If the baud rate selected is 115,200, the maximum measurement rate is
711 measu
rements. The LAN bus has a maximum measurement rate of 963 measurements.
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