New intelligent data logging devices currently on the market to achieve a common data logging devices to enhance technical, it solves the previous inspection slow crosstalk between channels, poor stability, alarm boxes were installed inconvenient, no international standard MODBUS communication protocol and many other shortcomings, is the most advanced and most complete product data logging devices. The main technical indicators: 1, Display range: -1999 to 9999, decimal point position can be set. 2, measurement and transmission output accuracy: ± 0.2% FS ± 1 word; ± 0.1% FS ± 1 word (on special order). 3, the input signal can be mixed input :() Thermocouple: K, E, S, B, J, T, R, N; automatic cold junction temperature compensation range 0 ~ 50 ℃, the compensation accuracy of ± 1 ℃. RTD: Pt100, Cu100, Cu50, BA2, BA1; lead resistance compensation range ≤50Ω. DC voltage: 0 ~ 20mV, 0 ~ 75mV, 0 ~ 200mV, 0 ~ 5V, 1 ~ 5V; 0 ~ 10V (specify when ordering, is not compatible with other signals). DC Current: 0 ~ 10mA, 4 ~ 20mA. Linear resistance: 0 ~ 400Ω (remote pressure gauge). Maximum 16 points selectable channels (channels 2 to 16 can be shielded in any one channel); each channel can be set (complete with software and hardware combination of jumpers) input signal type; you can set the scope and scale of decimal places respectively . 4 analog input impedance: current signal Ri = 100Ω; voltage signal Ri = 500KΩ. 5, the analog output: current signal: 4 ~ 20mA output Ro≤550Ω; 0 ~ 10mA output Ro≤1.1KΩ. Voltage signal: Requires external instrument input impedance Ri≥250KΩ, otherwise it does not guarantee the accuracy and linearity of the output to connect an external instrument after. You can select the measured values ??for each channel the average, maximum or minimum transmitter output; you can specify any channel transmission output; but the transmitter output range must be the same for all. 6, inspection modes: manual and automatic inspection mode, the display can also be fixed, you can toggle through the key. Manual inspection can be viewed through the key measurement values ??for each channel, 2 minutes without key operation to return to the automatic mode; interval display measured values ??for each channel according to the set time automatic inspection interval time can be set. 7, Alarm: multiple alarms ways for users to choose. a, unified set the alarm value for each channel, a shared relay output; b, set the alarm value for each channel separately, sharing relay output; c, set the alarm value for each channel separately, independent relay outputs (in this way need to reprovision the alarm control box); d Each channel independent bi-color LED alarm, red light indicates that the upper limit alarm, the green light indicates that the lower limit alarm; 8, means of communication: RS232 or RS485 selectable mode, using MODBUS standard communication protocols, versatility, and high reliability. 9, the use of environment: temperature: -10 ~ 55 ℃, Humidity: 10 ~ 90% RH. 10, compressive strength: input / output / power / communication ≥1000V.AC 1 min. 11. Insulation resistance: input / output / power / communication ≥100MΩ. 12 Power: Switching Power Supply: AC: 85 ~ 265V, frequency: 50Hz ± 2Hz; (recommended) linear power: AC: 220V ± 10V, frequency: 50Hz ± 2Hz; (transformer power supply, not recommended) DC power supply: DC 24V (Scope 16V-28V) 13, power consumption: <4W. Note: You can set up unified unified on-line or offline alarm alarm simultaneously more expensive, the details of telephone counseling