Metrix MTX 3281 - Capacitance Measurement; Temperature Measurement with Pt100 or Pt1000 Sensor (MTX 3282, MTX 3283); Temperature Measurement with J ou K Thermocouple; Dbm Measurement

Technical specifications
36 100,000-count graphical multimeters
Technical specifications (cont’d)
Capacitance
measurement
( )
MTX 3281
MTX 3282
MTX 3283
In this position, you can measure the value of a capacitor.
(∗) Use the REL function for values < 10 % of range to reset to residual zero
(compensation of the test lead capacity)
Resolution of 1000 points.
Automatic/manual range selection .
"Active" protection by CTP thermistor.
Maximum voltage delivered on open circuit: 1 V typ. / 4 V max.

For measurements lower than 10 nF, a shielded cable is recommended.
For a 2 wire-link, use very short wires (< 25 cm) and twist them .
Temperature
measurement with
Pt 100 or Pt 1000
MTX 3282
MTX 3283
In this position, you measure a temperature via a Pt 100 or Pt 1000 sensor.
"Active" protection by CTP thermistor
Display in °C (Celsius) / K (Kelvin) / °F (Fahrenhe it) possible

In Temperature measurement, it is possible to modify the scale of the graphic window
with the keys . The selected scale is recalled in the help line i .
Temperature
measurement with
thermocouple J or K
MTX 3281
MTX 3282
MTX 3283
In this position, you measure the temperature via a thermocouple:
Thermocouple K from -40°C to +1200°C
Thermocouple J from -40°C to +750°C
Internal measurement accuracy ± 3°C ± 0.1% range ( -10°C to 55°C)
Reference temp. accuracy ± 3°C / typical value
Type of thermocouple J and K
The multimeter needs 60’ to adapt to the ambient temperature.
dBm measurement
(power decibels)
MTX 3283
Display of measurement in dBm in relation to a resistance reference
(dBm REF) adjustable from 1 Ω to 10,000 Ω, factory set at 600 Ω.
Resolution 0.01 dB
Absolute error in dB 0.09 x V AC relative error expressed in %
Additional calculation error 0.01 dB
Measuring range 10 mV to 1000 V
Protection 1000 Vrms
dB measurement
(voltage decibels)
MTX 3283
Display of measurement in dB with the value measured (V ref) at activation of
the mode as voltage reference.
Resolution 0.01 dB
Absolute error in dB 0.09 x V
AC relative error expressed in %
Additional calculation error 0.01 dB
Measuring range 10 mV to 1000 V
Protection 1000 Vrms
Range Accuracy Resolution Measurement time Protection
10 nF (∗)
1 % + 10D
10 pF
< 0,2 s
100 nF 100 pF
< 0,5 s
1000 nF 1 nF
10 µF 10 nF
100 µF
1 % + 5D
100 nF
< 2 s
1000 µF 1 % + 15D 1 µF
10 mF 1.5 % + 15D 10 µF
≈ 5 s/mF
1000 Veff.
Range Measuring current Resolution Accuracy Protection
- 125°C to + 75°C
< 0.8 mA (Pt 100)
< 0.5 mA (Pt 1000)
± 0.5°C
- 200°C to + 800°C
< 0.8 mA (Pt 100)
< 0.5 mA (Pt 1000)
0.1°C ≡ 2µV
0,1 % ± 1°C
0,07 % ± 1°C
1000 Vrms