FLUKE773 process calibrator, Fluke773CHN process calibrator 

 U.S. Fluke FLUKE773 process calibrator, Fluke773CHN process calibrator features: (loop troubleshooting) 
 ? No off loop, 4 to 20mA signal can be measured 
 ? 4 to 20mA current signal output 
 ? Provides 24V DC loop power supply 
 ? Also available in series measuring mA table pen 
 ? 25% of a linear ramp or step mA output signal 
 ? the HART loop can activate 250Ω series resistance 
 ? Power saving function, auto power off, backlight time control capabilities, extended battery 
 FLUKE773 process calibrator, Fluke773CHN process calibrator 
 Contact: Zou Pengcheng QQ; 443813032 Tel :13144813660,0755 -36,890,859 
 FLUKE773 process calibrator, the U.S. process calibrator Fluke Fluke773CHN unique characteristics (circuit troubleshooting advanced features): 
 ? Simultaneous mA output / measurement functions, easy to adjust the valves or mA isolators / troubleshooting. MA for the device under test and simultaneously measure the input signal 4 to 20mA output (or feedback) signal 
 ? jaw measuring mA continuous output function. With the use of paperless recorder or Fluke 289, you can keep the case open-loop can be monitored and recorded 4 to 20mA signal, to help rule out the circuit failure 
 ? measuring 0 to 30 volts DC 
 ? Output 1 to 5 V or 0 to 10 volts DC voltage signal 
 ? 25% of a linear ramp or step output voltage signal 
 QQ: 443813032 Zou Pengcheng 13144813660 Tel :0755 -36,890,859 
 On-site valve adjustment / troubleshooting is a good helper 
 Clients in the adjustment valve, the common way of tuning, maintenance personnel at the scene simultaneously by two sources (handheld) with a multimeter, continue to test and compare measurements, record data. Therefore, a valve adjustment is very cumbersome, especially when a small opening repeated calibration. 
 After using the F773 CHN, to quickly distinguish between failure of electrical failure or mechanical failure. Save time, rapid investigation, conservation officers, cost savings, one person, one table to complete the valve calibration. 

 FLUKE773 process calibrator, Fluke773CHN process calibrator 
 Troubleshooting the machine a good helper hand 
 Automated robotic production line is difficult to troubleshoot the fault, and sometimes control the robot's movements will be 4-20mA signals or interference from other signals trigger the external signals, leading to burned or robot movement abnormalities, but there is no way to capture and engineers suffer This analysis led to the source and timing problems. With the F773, they can easily seize the culprit. 
 289 or with a similar signal recorder (can receive FLUKE773 timely process calibrator mA output signal), it can monitor and capture for a long time in those occasional mA loop / suspicious / unusual events to help determine the suspect / abnormal mA signal source and time of occurrence. 
 FLUKE773 process calibrator, Fluke 773CHN process calibrator Contact: Zou Pengcheng Tel :13144813660,0755-36890859 QQ; 443813032 






 Fluke's new circuit troubleshooting experts - FLUKE773 process calibrator, efficient, safe circuit troubleshooting table 
 FLUKE 773 Calibrator for the calibration process when the show's unique valve 
 U.S. Fluke Corporation recently introduced a loop troubleshooting experts - FLUKE773 process calibrator. Without "breaking the loop" can be measured 4 to 20 mA signal. The "Sync mA input / output" function is a valve, opening the valve, the valve of the investigation and intelligence tool. Operation of the pliers on the valve position feedback loop, while the output you want mA excitation signal to the excitation circuit, as FLUKE773 these two values ??simultaneously in a timely manner mA signal displayed on the screen, the user clear contrast, will be able to determine whether the switching valve in place, what, when abnormal opening. 


 Electric valve pneumatic control valve positioner is one of the key accessories, its role is to adjust the device output signal into a driving action of the gas valve signal. Valve positioner as an auxiliary tool, the positioning of the valve also plays a decisive role. Therefore, valve positioner tuning quality has a direct impact on the use of valves, valve positioners can also directly affect the normal valve function with field operations experienced engineers know that the tone of the valve positioner the school's most time-consuming, and adjust the accuracy is not very high. Repair the valve positioner tuning method of operation 
 An overhaul of the electrical valve positioner calibration process of the traditional method 
 1.1 Contact persons hand wheel control chemical pressure regulating valve opening, to maintain system stability. 
 1.2 removal of the locator and the membrane between the first output connector (hand wheel only for a particular direction of travel restrictions, restrictions can not be two 
 Direction of travel), so as not to repair locator output increases, causing the valve opening increases, the hand wheel can not be properly controlled, cause the system to fluctuate. 
 1.3 Repair or replace positioner. Ensure that the electrical part of the intact, with reference to the valve travel range should be adjusted accordingly. Then the zero adjustment screw 
 To the lowest, which is to ensure a good electrical connection parts, the positioning device has no output. 
 1.4 to inform the master control room will be transferred to the valve output signal corresponding to the current valve opening signal, and then connected the first locator and the membrane between the output connector and the wiring part. Then slowly adjust the zero knob positioning device, the output pressure gradually increased, while the other hand stop wheel slightly to force the valve opening direction, until the hand wheel has a sense of ease (ie, hand wheel has been separated from the membrane head pressure has replaced the hand-wheel), stop the zero adjustment knob, then you can inform the control room to achieve total computer operation, and then rotating the hand wheel to the free position. The reason for this last step is justified to follow. We have tried to locate in the removal of the output connector, through the block output connector, according to the positioner output pressure gauge to determine the location of the valve action, the result of course does not work. A notable feature locator: opening to send a signal, if the valve is not in place, positioning output will continue to increase until the output pressure to push the valve or air pressure, and vice versa. In fact, that is, through the role of feedback mechanism in order to achieve power levels 
 Balance, and ultimately to ensure total control of valve opening and valve position signals correspond to operating room. Similarly, the valve does not move the case, sent an open degree of increase (or decrease) the signal, the output will be increased to locate the source gas pressure (or reduced to no output pressure), except with the feedback signal changes lever to the corresponding opening, which is obviously difficult to operate. The correct way is: According to the current valve opening to send the appropriate signal, through the zero knob gradually from the smallest to film the first thrust, and ultimately replace the hand wheel, the feedback signal and input signal to achieve a balance, thus achieving handwheels to automatically bumpless operation. Adjustment process calibrator using FLUKE773 way valve / benefits: use FLUKE773 process calibrator, directly in the field can give an electrical output signal of positioner valve opening corresponding to the adjusted current signal, to avoid As the need to notify the control room to bring the total time delay caused by asymmetric information. One person, one table can be solved on-site valve adjustment. 
 2 electrical line replacement valve positioner 
 2.1 notify the operator to adjust the system pressure regulator valve to manually hit the state, and hit the pressure control valve hand wheel control. 
 2.2 According to the current valve opening, the angle lever is estimated at this time, installed locator. If the same type of locator, refer to the original 
 Locator installation location to install. It should be noted as a counter-pressure regulating valve to open the gas valve, be sure to check the direction of the feedback cam is good, to ensure that constitute 
 Negative feedback, otherwise the locator does not work. 
 2.3 Locator mechanical connection part connected, access 4 ~ 20mA DC (DC) input signal. 
 2.4 According to the current hand control opening round of the estimated input signal corresponding to the size of the DCS monitor screen gives the corresponding valve position signal. 
 2.5 locator connected with the air valve connection fitting, and finally connected to the gas source locator input, in accordance with the above mentioned methods of tuning adjustment. Use FLUKE773 process calibrator line replacement method of electrical positioner / benefits: an important regulator valve in the normal production process has failed and needs repair, use FLUKE773CHN, its unique on-line measurement capability, a line maintenance, to avoid valve fluctuations impact on the system