Multifunction calibrator / tester M-140
Multifunction
calibrator M-140 is a calibrator - tester, determined
mainly as standard of electric quantities in calibration
laboratories. It can be used for calibration of
electrical quantity meters from the field of voltage,
current, resistance, capacity and frequency. Installed
harmonic and non-harmonic shape signals as well make it
possible to test parameters of the meters by a signal
with various crest factor. Frequency modes enable to set
frequency, amplitude and duty ratio of the output signal.
They are suitable for basic calibration of oscilloscopes.
The calibrator is equipped with possibility to measure
temperature with TC and RTD temperature sensors. Built-in
multimeter can be used independently or in simultaneous
operation with source part of the calibrator together.
Testing of transducers of various types, regulators and
evaluating units can be perform with it without necessity
to use any other measuring instrument.
Basic parameters
Basic function of the calibrator is
generating of the calibrated DC/AC voltage in the range
from 0 µV to 1000 V and DC/AC current in the range from
0 to 20 A . Using a 50-turn coil the current range can be
extended from 50 µA to 500 A. The best accuracy of the
calibrator on DC voltage ranges is 0.0035%, on AC voltage
ranges 0.03%, on DC current ranges 0.013% and on AC
current ranges 0.055%. Maximum frequency range is from 20
Hz to 50 kHz for harmonic output waveform. The calibrator
is equipped with the function of generation the periodic
non-harmonic signals with the defined crest factor. Thus
it makes possible to test sensitivity of multimeters to
distorted signals. Next function of the calibrator is
simulation of resistance and capacity. With the
calibrator, the resistance in range from 0 ? to 50 ? and
capacity from 1 nF to 50 µF can be simulated with the
enough precision for calibration of common used hand-held
multimeters. The basic accuracy of the resistance ranges
is 0.03%, of the capacity ranges it is 0.5%. The
resistance may be used both with DC and AC signals up to
1 kHz.
The frequency function of the calibrator makes it
possible to generate a square wave signal with adjustable
and calibrated duty ratio, frequency and amplitude in
range from 1 mV to 10 V in the frequency band up to 10
kHz. In the mode HF the square wave signal up to 20 MHz
with a very low risetime can be generated. The frequency
functions are suitable for the calibrations of
corresponding frequency ranges of the multimeters, and
for calibration of the channel sensitivities and time
bases of the oscilloscopes as well.
For calibrations of DC and one-phase AC power-meters and
energy meters, the power mode is determined. Output
voltage can be set up to 240 V and output current up to
10 A with the power factor in range from -1 to +1 in the
frequency band from 20 Hz to 400 Hz. Current capability
of the voltage output is 30 mA. It allows to calibrate
also analogue power-meters which has usually higher
consumption. For calibrations of the thermometers and
temperature regulators, the function of simulation of
temperature sensors is determined. Calibrator is able to
simulate all common used Pt and Ni resistance sensors and
TC sensors of the R, S, B, J, T, E, K and N types as
well. Compensation of the TC cold junction is made either
by entering value from the keyboard, or automatically by
measuring the ambient temperature with Pt-100 sensor. The
precision of the simulated resistance and TC sensors
depends on set value and type of the sensor. For
resistance sensors uncertainty band is in the range from
0.04 °C to 0.5 °C, for TC sensors from 0.4°C to 4.0
°C.
Build-in multimeter
Internal multimeter with basic ranges 20 mA,
200 mV, 10 V and 2 k? is standard part of the calibrator.
With accuracy of 0.01% it enables to measure output
signals of various types of transducers. With external TC
or resistance temperature sensor temperature can be scan
and similarly, with external strange gauge sensor
pressure, torsion, strength, etc. can be measured and
displayed.
Calibrator - Tester
Calibrator can be used in simultaneous mode,
i.e. selected output signal is generated and the response
of the device under test is measured at the same time by
internal multimeter. Programmable capability of the
calibrator enable to set 10 steps of the testing
procedure and. The testing can run automatically and
after it is completed an information of the PASS/FAIL
type is displayed. With the testing function an isolated
relay contacts are coupled, which makes it possible to
control other equipment.
User comfort
M-140 Calibrator is equipped with a number of
other functions which make its use easier. Among them
belong possibility to set relative deviations from the
actual value of the selected output signal, displaying of
the output signal uncertainty, internal calibration
procedure and others. Concept of the calibrator's control
and indication uses a large area luminescence display on
which all necessary information is concentrated. The
control is perform by selection from the menu. Moreover,
frequently used functions have firmly assigned keys with
direct control. Normally, the calibrator is equipped with
the GPIB bus and with the RS-232 serial port making it
possible to be controlled by personal computer.
Without any problems, the calibrator can be included into
the MEATEST´s WinQbase software calibration system.
M-140
Specifications
DC voltage
| range |
% of value + % of
range |
| 0
µV - 20 mV |
0.05
+ 0.0 + 10 µV |
| 20
mV - 200 mV |
0.01
+ 0.0 + 10 µV |
| 200
mV - 2 V |
0.003
+ 0.0008 |
| 2
V - 20 V |
0.003
+ 0.0005 |
| 20
V - 240 V |
0.003
+ 0.0005 |
| 240
V - 1000 V |
0.005
+ 0.0005 |
AC voltage
| range |
% of value
+ % of range |
% of value
+ % of range |
| |
20
Hz - 10 kHz |
10
kHz - 50 kHz |
| 1
mV - 20 mV |
0.10
+ 0.0 + 5 µV |
0.20
+ 0.10 + 5 µV |
| 20mV
- 200mV |
0.05
+ 0.0 + 20 µV |
0.15
+ 0.05 + 20 µV |
| 200
mV - 2 V |
0.025
+ 0.005 |
0.05
+ 0.01 |
| 2
V - 20 V |
0.025
+ 0.005 |
0.05
+ 0.03 |
| 20
V - 240 V |
0.025
+ 0.010 |
-
- |
| 240
V - 1000 V |
0.03
+ 0.02 * |
-
- |
DC current
| range |
% of value + % of
range |
| 1
µA - 200 µA |
0.05
+ 0.010 |
| 200
µA - 2 mA |
0.02
+ 0.005 |
| 2
mA - 20 mA |
0.01
+ 0.003 |
| 20
mA - 200 mA |
0.01
+ 0.003 |
| 200
mA - 2 A |
0.015
+ 0.005 |
| 2
A - 20 A |
0.02
+ 0.010 |
AC current
| range |
% of value
+ % of range |
% of value
+ % of range |
| |
20
Hz - 1 kHz |
1
kHz - 5 kHz |
| 1
µA - 200 µA |
0.15
+ 0.0 + 20 nA |
0.30
+ 0.10 + 20 nA |
| 200
µA - 2 mA |
0.07
+ 0.01 |
0.20
+ 0.05 |
| 2
mA - 20 mA |
0.05
+ 0.005 |
0.20
+ 0.05 |
| 20
mA - 200 mA |
0.05
+ 0.005 |
0.20
+ 0.05 |
| 200
mA - 2 A |
0.05
+ 0.005 |
0.30
+ 0.05 |
| 2
A - 20 A |
0.10
+ 0.03 |
-
- |
When
option 130-50 Current coil is used, add
uncertainty 0.3 % of the set current to the value
specified in the above table.
Output current is multiplied by factor 50.
|
Resistance
| range |
% of value + % of
range |
| 0
Ohm - 100 Ohm |
0.03
+ 10 mOhm |
| 100
Ohm - 400 Ohm |
0.015
|
| 400
Ohm - 2 kOhm |
0.015
|
| 2
kOhm - 10 kOhm
|
0.015
|
| 10
kOhm - 40 kOhm
|
0.015
|
| 40
kOhm - 200 kOhm |
0.015
|
| 200
kOhm - 1 MOhm |
0.03
|
| 1
MOhm - 4 MOhm |
0.03
|
| 4
MOhm - 20 MOhm |
0.05
|
| 20
MOhm - 50 MOhm |
0.2
|
Maximum allowed voltage on the load is 8 Vpk.
|
Capacitance
| range |
% of value + % of
range |
| 900
pF - 2.5 nF |
0.5
+ 15 pF |
| 2.5
nF - 10 nF |
0.5
|
| 10
nF - 50 nF |
0.5
|
| 50
nF - 250 nF |
0.5
|
| 250
nF - 1 µF |
0.5
|
| 1
µF - 3.5 µF |
1.0
|
| 3.5
µF - 5 µF |
1.0
|
| 5
µF - 10 µF |
1.5
|
| 10
µF - 50 µF |
2.0
|
Maximum allowed voltage on the load is 8 Vpk.
|
Frequency
| type |
PWM
(pos, neg, sym) |
HF
* |
| range |
0.1
Hz - 100 kHz |
0.1
Hz - 20 MHz |
| frequency unc. [%] |
0.005 |
0.005 |
| amplitude |
1
mV - 10 V |
2
V |
| amplitude unc. [%] |
0.1 |
10 |
| ratio |
0.00
- 1.00 |
-
- |
| ratio unc. [%] |
0.05 |
-
- |
DC power, energy
| quantity |
range |
% of value
+ % of range |
| voltage |
200
mV - 240 V |
viz.
tabulka napìtí |
| current |
2
mA - 10 A |
0.05
+ 0.01 |
AC power, energy
| quantity |
range |
% of value
+ % of range |
| voltage |
200
mV - 240 V |
viz.
tabulka napìtí |
| current |
2
mA - 10 A |
0.05
+ 0.01 |
| frequency |
40
Hz - 400 Hz |
0.005 |
| power
factor |
-1
- +1 |
0.005
- 0.0005 |
| phase |
0
- 360 ° |
0.15
- 0.25 |
Setting time in energy mode 10 s - 1999 s.
Uncertainty of AC power depends on set value of
voltage, current, phase. The best uncertainty is
0.08 %. Uncertainty in energy mode depends on set
value of voltage, current, phase and time. The
best uncertainty is 0.09 %.
|
Resistance temperature sensor
simulation
| types |
Pt
1.385, Pt 1.392, Ni |
| range of R0 |
20
Ohm - 2 kOhm |
| range of
temperature |
-200
°C - 850 °C |
| temperature unc. |
0.04
°C - 0.5 °C |
| temperature scale |
ITS
90, PTS 68 |
Termocouples simulation
| types |
R,
S, B, J, T, E, K, N |
| range of
temperature |
-250
°C - 1820 °C |
| temperature unc. |
0.4
°C - 4.0 °C |
| temperature scale |
ITS
90, PTS 68 |
Multimeter
| quantity |
range |
uncertainty |
| VDC
(DC voltage) |
0
- ± 12 V |
0.01
% + 100 µV |
| mVDC
(DC voltage) |
0
- ± 2000 mV |
0.01
% + 10 µV |
| mADC
(DC current) |
0
- ± 25 mA |
0.02
% + 1 µA |
| FREQ
(Frequency) |
1
Hz - 15 kHz |
0.005
% |
| R4W
(Resistance) |
0
- 2 kOhm |
0.02
% + 100 mOhm |
| TRTD
(RTD sensors) |
-150
- +600 °C |
0.1
°C |
| TTC
(TC sensors) |
-250
- +1820 °C |
0.4
- 4 °C |
| SGS
(strain gauge) * |
depends
on sensor |
0.01
% + 10 µV
+ sensor unc. |
*
Supplying voltage 2 to 10 V DC,
Max. current 40 mA
Input resistance > 100 MOhm
Sensitivity 0.5 - 100 mV/V
Displayed unit settable
|
Accessories (included)
| Power line cable |
1 pc |
| Operation manual |
1 pc |
| Test report |
1 pc |
| Spare fuse |
1 pc |
| Test cable |
2 pc |
Extra ordered accessories
| Option 130-50 |
Current coil 50
turns |
| Option 140-01 |
Cable adapter for
multimeters |
| Option 140-02 |
Set of cables |
| Option 140-41 |
Cable adapter for
simultaneous applications |
| Option 10 |
Test cable
20A/1000V (black) |
| Option 11 |
Test cable
20A/1000V (red) |
| Option 20 |
Test cable
BNC/BNC 1m |
| Option 30 |
Test cable
BNC/banana 1m |
| Option 40 |
Test cable for
build-in multimeter 2 banana |
| Option 50 |
Test cable for
build-in multimeter 4 banana |
| Cable GPIB |
IEEE488/IEEE488,
2m |
| Cable RS232 |
RS232, 2m |
| WinQbase |
SW for meter
calibrating |
| MEACA |
SW module for
multimeters |
|
Indietro
