JH-JF4 type thermal Collection site mainly for industrial instrumentation and thermal validation system designed to maintain, provide better thermal Collection and practical functions, easy to operate. Thermal Collection using SCM as the CPU, the latest set of large-scale digital conversion integrated circuits and large-screen liquid crystal display technology in one, with output, measurement, manuals and 24VDC power distribution capability, and four functions can work simultaneously with the display output and measurements and the corresponding ITS-90 standard value (thermal resistance and thermocouple). Thermal Collection and equipped with large capacity rechargeable battery, portable, easy to complete the industrial scene thermal instrumentation (sensors, transmitters, display instruments, control system) maintenance, calibration. Thermal Collection its use with the following characteristics: 

 ■ Small, portable and handheld. 

 ■ Rugged, reliable, on the back of the bracket and hook holes for field use. 

 ■ Large display, measuring the output can be displayed simultaneously. 

 ■ voltage, current, resistance measurement and voltage and current output. 

 ■ 8 thermocouple (K, E, T, J, S, R, N, B) measurement and output, two RTD (PT100, Cu50) measurements. 

 ■ Thermal Collection thermocouple, thermal resistance measurement output with ITS-90 International Standard millivolt, resistance value corresponds to display. 

 ■ Voltage and current measurements show the percentage. 

 ■ thermocouple output with automatic or manual compensation. 

 ■ output value of the input using a variety of ways. 

 ■ Collection of thermal resistance can be achieved with the temperature, mV value and temperature value of fast peer review. 

 ■ Built-in high-capacity thermal canon rechargeable battery, charging time can work for 5-7 hours (associated with working conditions). 

 ■ large-screen LCD display with backlight, Chinese menu operation. 

 ■ Key Sound and light can be controlled, and can only boot to keep the last time the state of the last set. 

 Second, the technical parameters 

 2.1 DC input: 

 Measuring 

 Function 
 Range 
 Accuracy 

 DCV 
 0 ~ 35V 
 ± 0.1% FS 

 DCmV 
 0 ~ 100mV 
 ± 0.05% FS 

 DCmA 
 0 ~ 35mA 
 ± 0.05% FS 

 RTD 
 Two kinds 
 ± 0.1% FS 

 TC 
 K, T, E, J, N 
 ± 0.1% FS 

 R, S, B 
 ± 0.2% FS 

 F 
 0.0 ~ 5000Hz 
 ± 0.2Hz 



 2.2 DC output 

 Output 

 Function 
 Range 
 Accuracy 

 DCV 
 0 ~ 5V 
 ± 0.05% FS 

 DCmV 
 0 ~ 100mV 
 ± 0.05% FS 

 DcmA 
 0 ~ 24mA 
 ± 0.05% FS 

 TC 
 K, T, E, J, N 
 ± 0.1% FS 

 R, S, B 
 ± 0.2% FS 

 Hz 
 0 ~ 1000Hz 
 ± 1Hz 

 0 ~ 5.00KHz 
 ± 0.02KHz 



 2.3 Performance indicators: 

 Operating temperature: -10 ~ 50 ℃ 

 Storage temperature: -27 ~ 70 ℃ 

 L × W1 (W2) × H 

 Dimensions: mm 

 237 × 131 (95) × 45