LL general with X transmitter
6Pages

MAX FLOW SIZES FROM 5 GPH to 20 GPM (20 LPH TO 75 LPM) MAX LIQUID PRESSURE 300 PSI (20.69 BAR) LL SERIES MAX LIQUID PRESSURE 500 PSI (34.48 BAR) LP SERIES MAX LIQUID PRESSURE 1500 PSI (103.45 BAR) LH SERIES Flow meters, Flow switches and Flow transmitters A piston design for low flows of liquids ® LL Series, with standard scale and pointer (control box A). NIST Traceable Calibration Certificate Available ® DESCRIPTION These variable-area meters position an orifice over a tapered shaft to establish flow rate. Mounting is in-line and in any position. Straight pipe runs before or after this monitor are not required. The all-mechanical sensing system directly drives the pointer, switches and transmitters. READOUTS The flowmeter has outputs both visual and electronic. Visual displays are either pointer (with inscribed scale) or numeric (digital LCD). Electronic outputs can be mechanical switch closure, 4-20 mA analog or both (for signal redundancy). The switches can be general purpose or rated for hazardous locations (all classes, groups and divisions). The 4-20 mA transmitters are Intrinsically Safe if used with approved barriers. CALIBRATION All flow meters are individually calibrated for fluids with the viscosity you specify (up to 3000 SSU/650 Centistokes). We also compensate for your fluid’s specific gravity. For NIST Traceability please consult factory. CONSTRUCTION MATERIALS Housings and seals are offered in a variety of materials to suit a wide range of applications, such as: water, oil, coolants, paint, solvents and some corrosive fluids. See selections in the “How to Order” section. LINE CONNECTION Ports can be threaded or flanged. See selections in the “How to Order” section. Fluid flow causes a spring-loaded piston A having a circular opening at its center B to move along the axis of a precision-tapered shaft C. This creates a variable orifice in direct proportion to the flow rate. The piston is mechanically linked to the readout pointer D and actuates switch E or a transmitter (not shown). Viton® and Kalrez™ are registered trademarks for DuPont Performance Elastomers.

Select appropriate symbols and build a model code number, as in example shown: EXAMPLE: LL - SERIES BY PRESSURE RATING Normal pressure (150 or 300 PSI) Medium pressure (500 PSI) High pressure (1500 PSI) PISTON MATERIAL Brass Stainless steel (316) Water, oil Corrosives, chemicals WHERE USED Lube oil Water, oil with exterior corrosion protection Water Oil Oil Water, oil with exterior corrosion protection Chemicals, corrosives CAP MATERIAL Metal (same as housing) use matches housing (300 PSI) Polysulfone (150 PSI) SEAL MATERIAL Buna N EPR Viton Kalrez Kalrez (dynamic) & Buna N (static) Kalrez...

SERVICE Oil and dust tight (Type 12) Available on "A", "L" and "Z" only = N Weatherproof (Type 4) Available on all boxes = W Weatherproof, corrosion proof (Type 4X) Available on all boxes = X FLOW DIRECTION Left to right = R Right to left = L Up = U Down = D SPECIAL OPTIONS High-temp- 400°F for A & R Box (300°F for transmitter options) High accuracy (+/-3%) Stainless steel ID tag Pin connector with 3-6 pins, mini and micro style available CSA enclosure / PVC window Tempered glass window Wall mounting bracket Foot mounting bracket SWITCH SETTING No symbol = Lowest possible setting (usually...

ENGINEERING DATA Maximum fluid temperature: 200°F (93°C) Flow monitors mount in-line or offset and are typically supported by rigid pipe. For additional support when using tubing or flexible hose, order special options W (wall) or F (foot) mounting brackets. Optional max. fluid temperatures: 300 & 400°F (148 & 204°C) (option HT) Maximum ambient temp: 150°F (65°C) CSA listed only to 105°F (41oC) Wall Mount Bracket Series LL max. operating pressures: With plastic cap: (3:1 safety factor): 150 PSI (10.34 BAR) With metal cap: (3:1 safety factor): 300 PSI (20.69 BAR) Series LP max. operating...

CONTROL BOX SELECTION GUIDE “A” box is selected for price and simplicity. It holds switches (general purpose and hermetically sealed) or 4-20mA transmitter. You get this control box when you order any CONTROL BOX & READOUT starting with an “A” (see "How to Order" page). Examples: A1WR is a one switch, weatherproof box with flow from left to right. This control box is made of Polysulfone (standard low cost “A”) with options for aluminum (“L”) or 316 stainless steel (“Z”). 5.94 [151mm] APPROX. SWING RADIUS 5.33 [135mm] APPROX. SWING RADIUS Maximum installation dimensions “R” box is selected...

CONTROL BOX SELECTION GUIDE “T” box is selected for availability of two isolated junction boxes with terminal strips. This means that no direct wiring to switches or transmitters is required. Digital LCD display of flow is optional (“TXL”). It holds switches (general purpose) and 4-20mA transmitter. Switch (standard service) and transmitter are offered in this control box together when signal redundancy is desired. These are wired to separate junction boxes for signal isolation. You get this control box when you order any CONTROL BOX & READOUT starting with a “T” (see "How to Order" page)....