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td7600 test system for process signals 热工仪表与过程信号计量校准的参考级仪器，准确度等级达 0.003 级
电量输出与测量：直流电压 / 电流、电阻、脉冲信号
支持多种类型热电阻 ( rtd ) 的模拟和测量，支持四线电阻测量模式
支持多种类型热电偶 ( tc ) 的模拟和测量，用户可选择内部或外部进行温度补偿
overview
model td7600, a reference calibrator for thermal meters and process signals. the accuracy class is 0.003, it can calibrate the process signal calibrators with class 0.01 and below, and calibrate the thermal process instruments such as industrial sensors, transmitters and recorders.
meet the requirement of jjf 1472-2014 calibration specification for process calibrators. (tunkia is involved in drafting)
application
● support output or measurement of following electrical parameters: dc voltage, dc current, resistance, pulse signal, etc.
● support equivalent simulation and measurement of various thermal resistances (rtd), 4-wire resistance measurement mode.
● support equivalent simulation and measurement of various thermocouples (tc), and automatic temperature compensation without external compensating elements.
features
● the output and measurement can be performed simultaneously, the information of source and meter are displayed separately, and any channel can be closed off at any time.
● good electrical isolation between the channels to ensure the accuracy for a long time.
● the equivalent output or measurement values of rtd and tc can be displayed in the form of electrical parameter or temperature.
● provide dc voltage of 24 v as auxiliary power supply for transmitters (loop mode).
● complete electrical protection such as electrostatic protection and instantaneous overload protection of voltage and current, can adapt to complex industrial applications.
● large lcd touch screen, more intuitive of value display
● select the proprietary calibration software with computer to build full-automatic calibration system.
● the proprietary calibration software has built in multiple calibration solutions for dozens of process signal calibrator manufacturers at home and abroad.
● the proprietary calibration software has powerful data management, and supports customized templates to generate calibration reports.
electrical specifications
dc voltage and current output
output characteristics
● output range of voltage: 10 mv to 105 v
● output range of current: 2 ma to 110 ma
● ripple coefficient: <0.5 %
● display: 7 digits
dc voltage and current measurement
measurement characteristics
● measuring range of voltage: 10 mv to 120 v
● measuring range of current: 2 ma to 110 ma
● display: 7 digits
dc resistance output and measurement
output and measurement characteristics
● output range of resistance: 4 ω to 440 ω @ 400 ω range; 5 ω to 4.4 kω @ 4 kω range.
● measuring range of resistance: 4 ω to 4.8 kω
● display: 7 digits
● measurement mode: 2-wire or 4-wire
frequency signal output and measurement
● output range of frequency: 1 hz to 100 khz.
● measuring range of frequency: 1 hz to 100 khz.
● minimum resolution: 0.01 hz
● display: 6 digits
● output accuracy in 1 year: ±0.005 %
● measurement accuracy in 1 year: ±0.005 %
● output signal type: 0.3 vp-p to 12 vp-p
rtd output (°c)
rtd measurement (°c)
tc output and measurement (mv)
● output/ measurement range: -10 mv to 80 mv
● accuracy in 1 year: ± (25 ppm + 2 μv)
● ripple coefficient: <0.5 %
● display: 7 digits
tc output and measurement with external compensation (°c)
general specifications
● line power: 220 v ±22 v, 50 hz ±2 hz
● maximum power consumption: 80 va
● operating environment: +15 °c to +35 °c, 20 % to 85 % r·h, non-condensing
● calibrated environment: +21 °c to +25 °c, 40 % to 60 % r·h, warm up for 30 minutes
● storage environment: 0 °c to +40 °c, <95 % r·h, non-condensing
● dimensions (w × h × d): 460 mm × 220 mm × 360 mm
● weight: 10 kg
● communication: rs-232 interface