Pneumatic Indicating Controller - Model 40 Controller

PMT
Pneumatic Indicating Controller - Model 40 Controller
The Model 40 Pneumatic Controller automatically positions a valve or other final control element to maintain process pressure at the desired set point. As receiving controllers, they can control any process variable transmitted as a pneumatic signal. 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 proportio... More Detail
The Model 40 Pneumatic Controller automatically positions a valve or other final control element to maintain process pressure at the desired set point. As receiving controllers, they can control any process variable transmitted as a pneumatic signal. 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 two-position control action with adjustable differential gap. 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 proficient in controlling processes with unfavorable characteristics. Less Detail

*Not all products available in all areas. Please review our Territory information link.

Features

Quality, flexibility, accuracy and dependability

Indication of measured variable

A non-bleed, high capacity relay with excellent stability and fast response

Easy field calibration

Broad selection of control modes

Wide selection of process measuring elements for pressure, differential pressure, flow and level

Large, easy-to-read black on white dial for maximum resolution

Case and door with epoxy powdered fi nish for environmental protection

Specification Quickview
SPECIFICATIONS
Indication Accuracy: 1% middle half of scale. 1-½% remainder. Most ranges may be calibrated to ½% 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 ¼” 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, flush panel, pipe-supported or valve-mounted.
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 ¼” female NPT.
Measuring Elements: A wide range of precalibration measuring elements for pressure.
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 orifice and cleaner assembly only, or relay diaphragm housing and valve stem only output gauge and tubing.
Manufacturer's Documents

Manufacturers Documents

Manual
Ordering Information
Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8
XXXXXXXX X X X X X XX X
Table 1 Model 40 Pressure Instruments
Model 40 Pressure Instruments
Table 2 Control Mode
1 200% Prop. & Reset
2 100% Prop.
3 200% Prop.
7 300% PID (³/15 psi only)
Table 3 Output
1 3/15 psi
2 3/27 psi
3 6/30 psi
5 12/60 psi (Prop. only)
Table 4 Instrument Type
B Contr. W/2 Pos. By-Pass (not with PID)
K Controller
Table 5 Element Type*
B Bourdon Tube
C Barton #199 (Consult Rawson)
D Metal Diaphragm (Press.)
E Metal Diaphragm (0-30 in. Hg Vac, Ni Span C only)
F Slack Diaph. (D/P or Center 0)
I Barton #224 (Consult Rawson)
J Metal Diaph. (Suppressed Zero)
R Indicating Level
S Slack Diaph. (Pressure)
Table 6 Element Material*
0 No Element
1 Bronze
3 St. Stl. (316)
5 Ni Span C
7 Buna N
S Special
8 Buna N (Center 0)
9 C or I Element Type
Table 7 Element Range*
XX Enter first 2 digits of desired span so that it gives the desired
span when multiplied by the multiplier and the unit of measure.
Examples: 0 to 100 psi span is 101 (10 x 10 psi); 3 to 15 psi
span is 120 (12 x 1 psi)
Table 8 Multiplier & Units
0 x 1 psi
1 x 10 psi
2 x 100 psi
3 x 1000 psi
5 x 1 in. Water
6 x 10 in. Water
Contact Rawson Sales
Connect with our specialized support staff to address your specific sales questions or to place an order.
  • 800-779-1414
  • 713-684-1409
  • info@rawsonlp.com

Rawson is committed to providing you with personal attention, outstanding value and the best customer service in the industry.

Rawson Near You
Rawson, Inc. All Rights Reserved.
© copyright 1994 - 2018
Terms and Conditions | Category Site Map
ERIKS