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DAQ4090A Data Acquisition System

 
Up to 600 channels per system; Scan rates up to 450 channels/second; Support 6 1/2 digit sampling accuracy; Voltage (AC/DC), current (AC/DC), resistance (2-wire and 4-wire system), strain, frequency period, capacitance, temperature (10 kinds of thermocouples/thermistors) can be measured simultaneously; There are 14 kinds of acquisition control cards to choose from to meet different application needs; Equipped with LAN, USB, RS232/485 and GPIB interface, communication interface is rich.
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  • Each system can have up to 600 channels;
  • Scan rate up to 450 channels/sec;
  • Supports 6 1/2 digit sampling accuracy;
  • Measure and convert 14 different input signals: direct measurement of temperature (RTD/thermocouple/thermistor), voltage (AC/DC), current (AC/DC), strain, 2- and 4-wire resistors, frequency and period, capacitor;
  • Rich interfaces, equipped with LAN, USB, RS232/485 and GPIB interfaces;
  • Basic DCV accuracy 0.003%;
  • The host unit has 15 built-in control modules to meet different measurement requirements;
  • 4.3-inch TFT LCD screen, which is convenient for easy configuration and display of measurement results in many ways;
  • Free PC software that allows easy configuration and control of tests;
  • Supports USB storage for copying/recording data in stand-alone operation.
Data Acquisition System
Each system can have up to 600 channels; Scan rate up to 450 channels/sec; Basic DCV accuracy 0.003%
Multifunctional measurement
Measure and convert 14 different input signals: Direct measurement of temperature values (thermocouples, RTDS and thermistors), DC and AC voltages, DC and AC currents, 2-wire and 4-wire resistances, frequencies and periods, capacitors and diodes, strains.
Rich interface
Equipped with LAN, USB, RS232/485 and GPIB interfaces, it is ideal for remote setup and control data logging applications. Support USB flash drive to store data directly.
View Function
View scanned memory readings, digitized readings, alert queues, or error queues; Perform various post-processing measurements and power analysis of digital readings.
Strong data processing
Advanced independent digital multimeter features and performance. The basic accuracy of 0.003% DC voltage, 0.05% AC voltage, and 0.01% resistor accuracy during the one-year calibration period.
Schematic diagram of board channel
Choose from 14 different modules to get the precise functionality you need today, while preparing for flexible expansion in the future. Up to 60 double-ended measurements, 120 single-ended measurements, or 96 matrix cross contacts can be used to complete complex and diverse measurement tasks while optimizing bench space utilization and reducing costs.
Switch Module Number of Channels Scanning Speed On/off Speed AC/DC Voltage Thermocouple 2-wire RTD 4-wire RTD Thermistor AC/DC Current Frequency/Period 2-wire Resistor 4-wire Resistor Capacitance Input Voltage Input Current Input Power
DAQM4000A 20 450 channels/second √ √ × × × × √ √ √ × 120V 0.02A 2.4W
DAQM4001A 20+2 80 channels/second 120 channels/second √ √ √ √ √ √ √ √ √ √ 300V 1A 50W
DAQM4002A 16 80 channels/second 120 channels/second √ √ √ √ √ × √ √ √ √ 300V 50mA 2W
DAQM4003A 20 (SPDT) 120 channels/second × × × × × × × × × × 300V 1A 50W
DAQM4004A 4×8 (2 lines) 120 channels/second × × × × × × × × × × 300V 1A 50W
DAQM4005A Double 1×4 (50Ω) 60 channels/second × × × × × × × × × × 42V 0.7A 50W
DAQM4008A 40 (1 line) 80 channels/second 70 channels/second √ × √ × √ × √ √ × √ 300V 1A 50W
DAQM4014A 8 80channels/second √ DC2A
DAQM4015A 8 15channels/second √ AC1100V/DC1500V 10mA(1500V)
DAQM4016A 8 15channels/second √ AC1400V/DC2000V 1mA(2000V)
DAQM4000A 20 channel multiplexer (solid state relay)
* Scan speed up to 450 channels per second
* 2-line and 4-line scanning
* Built-in cold contact technology 120V switch 		The DAQM4000A is A dependent relay module that provides two groups (A/B) of 10 2-wire channels each. All 20 channels can be switched to high (HI) and low (LO) inputs, providing fully isolated inputs for a built-in digital meter or external bit. During the 4-wire resistance measurement, the channels in Group A are automatically paired with those in Group 8 to provide power and sensing connections. The module has built-in cold contact technology that greatly reduces errors caused by thermal changes when measuring thermocouples.
DAQM4001A 20+2 channel universal multiplexer (armature relay)
* Scan speed up to 80 channels per second
* 2-line and 4-line scanning
* Built-in cold contact technology
*300V switch
* Additional 2 channels for direct current measurement (1A/CH) 		The DAQM4001A is an integrated multiplexer for general purpose scanning. The same module can mix 2-wire and 4-wire channels; At the same time, an additional 2 current input channels can be used for AC and DC current measurement without the need for external shunt resistors (maximum 1A per channel).
The DAQM4001A has a total of 22 channels, intensive multi-function switching and a scan rate of up to 80 channels per second for a variety of data acquisition applications.
DAQM4002A 16 channel high speed multiplexer
* Maximum scan rate of 80 channels per second
* 2-line and 4-line scanning
* Built-in thermocouple reference node 		The DAQM4002A achieves a scan rate of up to 80 channels per second. The module is suitable for high-throughput automated test applications, as well as high-speed data recording and monitoring tasks.
16 two-wire inputs can be switched to 300V. Both 2-wire and 4-wire channels can be mixed on the same module. Current measurement requires the use of the user's own shunt resistor.
DAQM4003A 20 channel actuator/universal switch
*SPDT (Type C) self-locking relay
*300V, 1A excitation and control 		The DAQM4003A features 20 separate single-pole double-throw (SPDT) relays. It can turn on and off the power supply circuit of the product under test, the control indicator light and the status lamp, and stimulate the external power relay and solenoid. It is combined with matrix and multiplexer modules to form custom switching systems with 300V, 1A contacts that can withstand power up to 50W.
DAQM4004A 4x8 doublet matrix
* Switching speed 3ms
*32 dual intersections
*300V, 1A switch
* Up to 96 intersections (3 slots) 		The DAQM4004A module provides the most flexible connection path between the DUT and the test system, allowing different test instruments to connect to multiple points on the DUT simultaneously. The DAQM4004A can connect rows and columns of multiple modules to build larger matrices, such as 8x8, 4x16, etc. Up to 96 intersections can be constructed in a single instrument.
DAQM4005A Dual 4-channel RF multiplexer (50Ω)
*2GHz bandwidth
* Includes BNC to SMB adapter cable 		The DAQM4005A provides broadband switching for high frequency and pulse signals. They can be used to route test signals between the device under test and signal generators, oscilloscopes, spectrum analyzers, or other instruments.
This module can be used as two independent 1x4 multiplexers, each containing a common shield and a switching center conductor. Connections can be made directly to an SMB input with 2GHz available bandwidth, or to a BNC to SMB adapter that provides 1GHz bandwidth. If the application requires a larger topology, multiple switch groups can also be cascaded to create a 16:1 multiplexer within a single instrument.
DAQM4008A 40 channel single-ended multiplexer
* Scan speed up to 80 channels per second
* Single-wire switch for public low-end applications 		The DAQM4008A can switch 40 single-wire inputs for each module, such as battery tests, component characteristics, and desktop tests. Low voltage connection and ground isolation, floating up to 300V. The DAQM4008A also supports all 2-wire internal measurements except current.
DAQM4014A 8-channel
* Maximum scan rate of 80 channels per second 		DAQM4014A module is continuous current measurement, which can ensure that the current path is disconnected for a short time during the measurement process and does not affect the measured circuit.
DAQM4015A 8-channel
* Maximum scan rate of 15 channels per second 		DAQM4015A is a 1500V high voltage measuring card. The maximum input voltage that can be measured is AC1100V/DC1500V, and the current limit is 10mA(1500V). Because the inside of the board has been equivalent to tens of M, in the measured voltage range, there is generally no need to add additional external current limiting measures.
DAQM4016A 8-channel
* Maximum scan rate of 15 channels per second 		The DAQM4016A is a 2000V high voltage measuring card. The maximum input voltage that can be measured is AC1500V/DC2000V, and the current limit is 1mA(2000V). Because the inside of the board has been equivalent to tens of M, in the measured voltage range, there is generally no need to add additional external current limiting measures.
Range (2) 24 hours（3） 90 Day 1 Year 2 Year Temperature coefficient (4)
TCAL ± 1℃ TCAL±5℃ TCAL±5℃ TCAL±5℃
DC Voltage
100mV 0.0030+0.0030 0.0040+0.0035 0.0050+0.0035 0.0065+0.0035 0.0005+0.0005
1V 0.0020+0.0006 0.0030+0.0007 0.0040+0.0007 0.0055+0.0007 0.0005+0.0001
10V 0.0015+0.0004 0.0020+0.0005 0.0035+0.0005 0.0050+0.0005 0.0005+0.0001
100V 0.0020+0.0006 0.0035+0.0006 0.0045+0.0006 0.0060+0.0006 0.0005+0.0001
1000V 0.0020+0.0006 0.0035+0.0010 0.0045+0.0010 0.0060+0.0010 0.0005+0.0001
True RMS AC Voltage (2, 5, 6)
100 mV, 1 V, 10 V, 100 V, and 750 V ranges
5Hz-10Hz 0.35+0.02 0.35+0.03 0.35+0.03 0.35+0.03 0.035+0.003
10Hz-20KHz 0.04+0.02 0.05+0.03 0.06+0.03 0.07+0.03 0.005+0.003
20KHz-50KHz 0.10+0.04 0.11+0.05 0.12+0.05 0.13+0.05 0.011+0.005
50KHz-100KHz 0.55+0.08 0.60+0.08 0.60+0.08 0.60+0.08 0.060+0.008
100KHz-300KHz 4.00+0.50 4.00+0.50 4.00+0.50 4.00+0.50 0.200+0.020
Direct Current Internal Resistance Pressure Drop
100μA <0.03V 0.010+0.020 0.040+0.025 0.050+0.025 0.060+0.025 0.0020+0.0030
1mA <0.3V 0.007+0.006 0.030+0.006 0.050+0.006 0.060+0.006 0.0020+0.0005
10mA <0.05V 0.007+0.020 0.030+0.020 0.050+0.020 0.060+0.020 0.0020+0.0020
100mA <0.5V 0.010+0.004 0.030+0.005 0.050+0.005 0.060+0.005 0.0020+0.0005
1A <0.7V 0.050+0.006 0.080+0.010 0.100+0.010 0.120+0.010 0.0050+0.0010
3A <2.0V 0.180+0.020 0.200+0.020 0.200+0.020 0.230+0.020 0.0050+0.0020
10A （8） <0.5V 0.050+0.010 0.120+0.010 0.120+0.010 0.150+0.010 0.0050+0.0010
True RMS AC Current (2, 6, 9)
100μA <0.011v 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
1mA <0.11V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
10mA <0.05V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
100mA <0.5V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
1A <0.7V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
3A <2.0V 3Hz-5KHz 0.23+0.04 0.23+0.04 0.23+0.04 0.23+0.04 0.015+0.006
5KHz-10KHz 0.23+0.04 0.23+0.04 0.23+0.04 0.23+0.04 0.030+0.006
10A （8） <0.5V 3Hz-5KHz 0.15+0.04 0.15+0.04 0.15+0.04 0.15+0.04 0.015+0.006
5KHz-10KHz 0.15+0.04 0.15+0.04 0.15+0.04 0.15+0.04 0.030+0.006
Resistance (7) Test Current
100Ω 1mA 0.003+0.0030 0.008+0.004 0.010+0.004 0.012+0.004 0.0006+0.0005
1KΩ 1mA 0.002+0.0005 0.008+0.001 0.010+0.001 0.012+0.001 0.0006+0.0001
10KΩ 100uA 0.002+0.0005 0.008+0.001 0.010+0.001 0.012+0.001 0.0006+0.0001
100KΩ 10uA 0.002+0.0005 0.008+0.001 0.010+0.001 0.012+0.001 0.0006+0.0001
1MΩ 5uA 0.002+0.0010 0.008+0.001 0.010+0.001 0.012+0.001 0.0010+0.0002
10MΩ 500nA 0.015+0.0010 0.020+0.001 0.040+0.001 0.060+0.001 0.0030+0.0004
100MΩ 500nA 0.300+0.0100 0.800+0.010 0.800+0.010 0.800+0.010 0.1500+0.0002
Frequency and Period Characteristics
Accuracy:±(%ofreading)（12、13）
100 mV, 1 V, 10 V, 100 V, and 750 V （14）
10Hz-100Hz 0.03 0.03 0.03 0.03 0.035
100Hz-1KHz 0.003 0.008 0.01 0.01 0.015
1KHz -300KHz 0.002 0.006 0.01 0.01 0.015
Square Wave (15) 0.001 0.006 0.01 0.01 0.015
Additional Gating Time Error ± (% reading) (13) 1 seconds 0.1 seconds 0.01 seconds
3Hz-40Hz 0 0.2 0.2
40Hz-100Hz 0 0.06 0.2
100Hz-1KHz 0 0.02 0.2
1KHz-300KHz 0 0.004 0.03
Square Wave (15) 0 0 0
Turn-on
1KΩ 0.002+0.030 0.008+0.030 0.010+0.030 0.012+0.030 0.001+0.002
Diode Test
5V 0.002+0.030 0.008+0.030 0.010+0.030 0.012+0.030 0.001+0.002
Temperature characteristics (11)
PT100(DIN/IEC751) Probe accuracy +0.05℃
5 KΩ thermistor Probe accuracy +0.1℃
Capacitance (15)
1.000 nF 0.50+0.50 0.50+0.50 0.50+0.50 0.50+0.50 0.05+0.05
10.00 nF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
100.0 nF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
1.000 uF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
10.00 μF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
100.0 uF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
1. For DC: the technical indicators are valid after 60 minutes of preheating, the integration period is set to 10 or 100PLC, and automatic zero is enabled. For AC: The technical specification is valid after 60 minutes of warm-up, with slow AC filtering and sine wave.
2. 20% overrange for all ranges except 1,000DCV, 750ACV, 10ADC, 3AAC, 10AAC and diode tests.
3. Relative to calibration standards.
4. Outside the TCAL±5℃ range, a coefficient is increased for every 1 degree (℃).
5. The technical index is valid when the sine wave input is >5% range and >1mVrms. The 750ACV range is limited to 8×107V-Hz. If the input signal frequency is < 50KHz and the sine wave input is between 1% and 5% of the entire range, then the indicator needs to add an additional 0.1% extra error, and the frequency between 50KHz and 100KHz, the indicator needs to add an additional error of 0.13%.
6. Low frequency performance: provide three filter Settings: 3Hz, 20Hz, 200Hz. Exceeding the frequency set by the filter has been specified, and no additional error will occur.
7. Technical specifications are suitable for 4-wire or 2-wire resistance measurement (NULL return to zero). Without NULL resetting, 2-wire resistance measurements add an additional error of 0.2Ω.
8.10A range is only available on the front connector. Add 2mA base current value to each amplifier, or input current >5Arms. 9. The technical specifications are valid when the sine wave input is >1.5% range and >10μAAC.
10. Technical specifications apply to the voltage measured at the input end. 1mA test current is typical. The change of current source will cause the voltage drop of diode junction to change.
11. The selected probe will limit the actual measurement range and measurement error. Probe accuracy has included all measurement and ITS-90 temperature conversion errors. The PT100Ro can be set to 100Ω±5Ω to eliminate the original probe error.
12. Unless otherwise stated, technical specifications are valid after 60 minutes of warm-up and with a sine wave input. Technical specifications Applicable to 1s strobe time (7 bits).
13. Suitable for sine wave and square wave input ≥100mV. For input signals of 10mV to 100mV, multiply the indicator by 10 (i.e., enlarge the reading indicator by a factor of 10).
14. The amplitude range is 10% to 120%, less than 750ACV.
15. The square wave input is specified as 10Hz-300kHz.
Range (2) 24 hours（3） 90 Day 1 Year 2 Year Temperature coefficient (4)
TCAL ± 1℃ TCAL±5℃ TCAL±5℃ TCAL±5℃
DC Voltage
100mV 0.0030+0.0030 0.0040+0.0035 0.0050+0.0035 0.0065+0.0035 0.0005+0.0005
1V 0.0020+0.0006 0.0030+0.0007 0.0040+0.0007 0.0055+0.0007 0.0005+0.0001
10V 0.0015+0.0004 0.0020+0.0005 0.0035+0.0005 0.0050+0.0005 0.0005+0.0001
100V 0.0020+0.0006 0.0035+0.0006 0.0045+0.0006 0.0060+0.0006 0.0005+0.0001
1000V 0.0020+0.0006 0.0035+0.0010 0.0045+0.0010 0.0060+0.0010 0.0005+0.0001
True RMS AC Voltage (2, 5, 6)
100 mV, 1 V, 10 V, 100 V, and 750 V ranges
5Hz-10Hz 0.35+0.02 0.35+0.03 0.35+0.03 0.35+0.03 0.035+0.003
10Hz-20KHz 0.04+0.02 0.05+0.03 0.06+0.03 0.07+0.03 0.005+0.003
20KHz-50KHz 0.10+0.04 0.11+0.05 0.12+0.05 0.13+0.05 0.011+0.005
50KHz-100KHz 0.55+0.08 0.60+0.08 0.60+0.08 0.60+0.08 0.060+0.008
100KHz-300KHz 4.00+0.50 4.00+0.50 4.00+0.50 4.00+0.50 0.200+0.020
Direct Current Internal Resistance Pressure Drop
100μA <0.03V 0.010+0.020 0.040+0.025 0.050+0.025 0.060+0.025 0.0020+0.0030
1mA <0.3V 0.007+0.006 0.030+0.006 0.050+0.006 0.060+0.006 0.0020+0.0005
10mA <0.05V 0.007+0.020 0.030+0.020 0.050+0.020 0.060+0.020 0.0020+0.0020
100mA <0.5V 0.010+0.004 0.030+0.005 0.050+0.005 0.060+0.005 0.0020+0.0005
1A <0.7V 0.050+0.006 0.080+0.010 0.100+0.010 0.120+0.010 0.0050+0.0010
3A <2.0V 0.180+0.020 0.200+0.020 0.200+0.020 0.230+0.020 0.0050+0.0020
10A （8） <0.5V 0.050+0.010 0.120+0.010 0.120+0.010 0.150+0.010 0.0050+0.0010
True RMS AC Current (2, 6, 9)
100μA <0.011v 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
1mA <0.11V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
10mA <0.05V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
100mA <0.5V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
1A <0.7V 3Hz-5KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.015+0.006
5KHz-10KHz 0.10+0.04 0.10+0.04 0.10+0.04 0.10+0.04 0.030+0.006
3A <2.0V 3Hz-5KHz 0.23+0.04 0.23+0.04 0.23+0.04 0.23+0.04 0.015+0.006
5KHz-10KHz 0.23+0.04 0.23+0.04 0.23+0.04 0.23+0.04 0.030+0.006
10A （8） <0.5V 3Hz-5KHz 0.15+0.04 0.15+0.04 0.15+0.04 0.15+0.04 0.015+0.006
5KHz-10KHz 0.15+0.04 0.15+0.04 0.15+0.04 0.15+0.04 0.030+0.006
Resistance (7) Test Current
100Ω 1mA 0.003+0.0030 0.008+0.004 0.010+0.004 0.012+0.004 0.0006+0.0005
1KΩ 1mA 0.002+0.0005 0.008+0.001 0.010+0.001 0.012+0.001 0.0006+0.0001
10KΩ 100uA 0.002+0.0005 0.008+0.001 0.010+0.001 0.012+0.001 0.0006+0.0001
100KΩ 10uA 0.002+0.0005 0.008+0.001 0.010+0.001 0.012+0.001 0.0006+0.0001
1MΩ 5uA 0.002+0.0010 0.008+0.001 0.010+0.001 0.012+0.001 0.0010+0.0002
10MΩ 500nA 0.015+0.0010 0.020+0.001 0.040+0.001 0.060+0.001 0.0030+0.0004
100MΩ 500nA 0.300+0.0100 0.800+0.010 0.800+0.010 0.800+0.010 0.1500+0.0002
Frequency and Period Characteristics
Accuracy:±(%ofreading)（12、13）
100 mV, 1 V, 10 V, 100 V, and 750 V （14）
10Hz-100Hz 0.03 0.03 0.03 0.03 0.035
100Hz-1KHz 0.003 0.008 0.01 0.01 0.015
1KHz -300KHz 0.002 0.006 0.01 0.01 0.015
Square Wave (15) 0.001 0.006 0.01 0.01 0.015
Additional Gating Time Error ± (% reading) (13) 1 seconds 0.1 seconds 0.01 seconds
3Hz-40Hz 0 0.2 0.2
40Hz-100Hz 0 0.06 0.2
100Hz-1KHz 0 0.02 0.2
1KHz-300KHz 0 0.004 0.03
Square Wave (15) 0 0 0
Turn-on
1KΩ 0.002+0.030 0.008+0.030 0.010+0.030 0.012+0.030 0.001+0.002
Diode Test
5V 0.002+0.030 0.008+0.030 0.010+0.030 0.012+0.030 0.001+0.002
Temperature characteristics (11)
PT100(DIN/IEC751) Probe accuracy +0.05℃
5 KΩ thermistor Probe accuracy +0.1℃
Capacitance (15)
1.000 nF 0.50+0.50 0.50+0.50 0.50+0.50 0.50+0.50 0.05+0.05
10.00 nF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
100.0 nF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
1.000 uF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
10.00 μF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
100.0 uF 0.40+0.10 0.40+0.10 0.40+0.10 0.40+0.10 0.05+0.01
1. For DC: the technical indicators are valid after 60 minutes of preheating, the integration period is set to 10 or 100PLC, and automatic zero is enabled. For AC: The technical specification is valid after 60 minutes of warm-up, with slow AC filtering and sine wave.
2. 20% overrange for all ranges except 1,000DCV, 750ACV, 10ADC, 3AAC, 10AAC and diode tests.
3. Relative to calibration standards.
4. Outside the TCAL±5℃ range, a coefficient is increased for every 1 degree (℃).
5. The technical index is valid when the sine wave input is >5% range and >1mVrms. The 750ACV range is limited to 8×107V-Hz. If the input signal frequency is < 50KHz and the sine wave input is between 1% and 5% of the entire range, then the indicator needs to add an additional 0.1% extra error, and the frequency between 50KHz and 100KHz, the indicator needs to add an additional error of 0.13%.
6. Low frequency performance: provide three filter Settings: 3Hz, 20Hz, 200Hz. Exceeding the frequency set by the filter has been specified, and no additional error will occur.
7. Technical specifications are suitable for 4-wire or 2-wire resistance measurement (NULL return to zero). Without NULL resetting, 2-wire resistance measurements add an additional error of 0.2Ω.
8.10A range is only available on the front connector. Add 2mA base current value to each amplifier, or input current >5Arms. 9. The technical specifications are valid when the sine wave input is >1.5% range and >10μAAC.
10. Technical specifications apply to the voltage measured at the input end. 1mA test current is typical. The change of current source will cause the voltage drop of diode junction to change.
11. The selected probe will limit the actual measurement range and measurement error. Probe accuracy has included all measurement and ITS-90 temperature conversion errors. The PT100Ro can be set to 100Ω±5Ω to eliminate the original probe error.
12. Unless otherwise stated, technical specifications are valid after 60 minutes of warm-up and with a sine wave input. Technical specifications Applicable to 1s strobe time (7 bits).
13. Suitable for sine wave and square wave input ≥100mV. For input signals of 10mV to 100mV, multiply the indicator by 10 (i.e., enlarge the reading indicator by a factor of 10).
14. The amplitude range is 10% to 120%, less than 750ACV.
15. The square wave input is specified as 10Hz-300kHz.
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