The intelligent inspection instrument is suitable for the detection and alarm of the process quantity from 5 to 80 points. It can input sensor and transmitter signals such as thermal resistance, thermocouple, DC current, and DC voltage.

► The basic error is less than 0.2%F·S, the display range is -1999~9999

► Set the input signal type, range and alarm value for each channel d.u.

► The digital filter time constant is set independently for each channel to effectively improve the anti-interference ability

► The zero point and full scale correction of each channel can be set independently, which can effectively reduce the sensor error and improve the measurement accuracy of the system

► Can arbitrarily close unused channels

► Level 2 parameters. Level 2 parameters are controlled by password to prevent misoperation. With parameter copy function, the workload of parameter setting is greatly reduced

► d.u has a very practical alarm function, which can be connected to a multi-point control unit to realize the alarm output of each channel

► Manual, timer, alarm start printing

► Fast and efficient communication interface, greatly reducing communication time

2. Selection table of intelligent inspection instrument:

Note: The connection can realize the alarm output of each channel, each unit has 16 points of control output, and each meter can use up to 2 to achieve 32-point control.

The multi-point control unit is used in conjunction with the inspection instrument. Through the supporting multi-point control unit, the alarm status of each channel can be output independently or in combination.

To achieve the purpose of alarm or control of each channel d.u.

Note: 1. Standard configuration includes 4-point control

2. All 16 control points can be selected as relay output or solid-state output, or different points can correspond to different control outputs, but need to be specified when ordering.

3. Technical specifications of intelligent inspection instrument:

input

Number of channels: 5~80 channels

Thermal resistance: Pt100, Cu100, Cu50, BA1, BA2, G53

Full-scale measurement, display resolution 0.1 ℃, with disconnection recognition function

Thermocouples: K, S, R, B, N, E, J, T, etc.

Full-scale measurement (including negative temperature), display resolution 1 ℃ or 0.1 ℃, selected by parameters. With disconnection recognition function

DC current: 4mA~20mA, 0mA~10mA, 0mA~20mA, display range -1999~9999, arbitrarily set the range and decimal point position

DC voltage: 1V~5V, 0V~5V, display range -1999~9999, arbitrarily set range and decimal point position

RTD input lead resistance: within 20 Ω

Thermocouple input lead wire resistance: within 100 Ω

Accuracy

16-bit A/D converter

Measurement accuracy: ± 0.2%F·S

Display Resolution: 1/10000

Thermocouple cold junction compensation accuracy: ± 0.2 ℃, range 0 ℃ ~ 60 ℃