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AMETEK 40控制器
DAMETEK 40控制器escription
Standard models have proportional band adjustments for controlling processes where load changes are infrequent and can be corrected by the manual reset feature.
AMETEK 40控制器的详细资料
AMETEK 40控制器Description
Standard models have proportional band adjustments for controlling processes where load changes are infrequent and can be corrected by the manual reset feature, standard in every controller. By a simple screwdriver adjustment, the standard proportional controller can be changed to on/off control action with adjustable differential gap.AMETEK 40控制器
Model 40 Controllers are available with control modes of 100% proportional, 200% proportional plus reset and 300% proportional plus reset plus rate (PID) (for processes with frequent load changes). They not only satisfy ordinary control requirements, but are equally profi cient in controlling processes with unfavorable characteristics.
Specifications
| Indication Accuracy | 1% middle half of scale, 1-1/2% remainder. Most ranges may be calibrated to 1/2% accuracy at nominal extra charge. |
| Sensitivity | Less than 0.1% of full scale at 100% Proportional band |
| Frequency Response | Flat to 400 CPM with 200 ft. of 1/4” tubing and 1.2 cubic inch capacity. Flat to 120 CPM with 18’ 3/8” tubing and 200 cubic in. capacity. |
| Construction | Moving parts are designed as light as possible to keep friction and inertia forces low. This design also results in higher resistance to vibration and shock. |
| Mounting | Surface, fl ush panel, pipe-supported or valve-mounted. For dimensions, see page 7. |
| Air Supply | 20 psi for 3-15 psi range; 35 psi for 3-27 & 6-30 psi range; 65 psi for 12-60 psi range. A filter and dripwell are recommended ahead of each controller to ensure clean, dry air supply. May be operated on natural gas or bottled CO2. |
| Connections | Standard back connections are 1/4” female NPT |
| Measuring Elements | A wide range of precalibration measuring elements for pressure are detailed on page 5 |
| Modular Construction | Each of the following components may be removed without disturbing the other components: control chassis complete, precalibrated elements, feedback assemblies, complete relay units, or supply gauge only, or nozzle feed orifi ce and cleaner assembly only, or relay diaphragm housing and valve stem only- output gauge and tubing |
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