All Stainless Steel Construction for Highly Corrosive Applications
The 6400 Series Senior Gauges are especially designed for chemical service with all wetted parts made of stainless steel except the nickel-plated Alnico drive magnet.
General Information & Features
The 6400 Series gauges are available in gear-action models for top, centerline or angle mounting, or in lever-action models for centerline mounting only. They are mounted to tank using Senior flanges 2 1⁄2″ bolt circle [63,5] by four #0040-00666 5⁄16 -24 x 3⁄4 bolts. A #0015-00462 spiral-wound, Teflon gasket is standard.
|Model Number||Action||Mounting||Dial, Sender or Switch Data|
|6440||Gear||Top||Senior TwinSite® Sender in choice of 0-30, 0-90, or 240-30 Ohm ranges. Direct-reading dials may also be used.|
|6443||C/L or Angle|
|6450||Gear||Top||Standard switch #5023s00778 S.P.S.T. VAC/50 VDC 1/2 Amp. Please furnish tank drawings and switch points so proper gauge and calibration can be supplied. Other switches available, see DS-364.|
|6453||C/L or Angle|
|6460||Gear||Top||#5002s00570 Senior side-reading fractional.|
|6480||#5002s00062 Senior direct-reading fractional.|
|6483||C/L or Angle|
|L6483||Lever||C/L||#5002s00547 Senior direct-reading fractional.|
|6490||Gear||Top||#5013s00456 4″ fractional dial.|
|6493||C/L or Angle|
Gallonage and percentage dials are available for models 6480 through L6493 at extra cost.
Accuracy depends upon proper gauge sizing. Senior dials +/-6%, TwinSite® dials +/-10%. Accuracy may be less depending upon tank shape. Accuracy may be less near full and empty. Accuracy may be less if tank is not level. This gauge is not to be used for filling. All accuracy estimates are expressed as a percent of full scale.
Recommended Mounting-Screw Torque
12 lb.-ft. [16,4 Mn]
Standard operating temperature range is -40°F to 158°F, -40°C to 70°C. +350°F, 177°C available on special order.
Passes MIL-S-901 B Naval Standard Shock Test.
Passes MIL-STD-167 Naval Standard Vibration Test.
0.5 watts maximum for TwinSite® versions.
Maximum Service Pressure
500PSIG [34 Bar] (Standard). Service pressure up to 575 PSIG [39,6 Bar] available on special order.
These direct indicating gauges are UL listed for flammable liquids.
Note: For installation instructions see MS-501/502 (mounting standard).
Materials of Construction*
Head, Centershaft, Support Tube, Gears, Cross Stud, Gear Housing, Bearings, Float, & Float Rod
Teflon and stainless steel.
Aluminum with acrylic crystal, hermetically sealed.
Aluminum with polycarbonate crystal, hermetically sealed.
Standard 4″ Dial
Aluminum with glass crystal, hermetically sealed.
When Ordering Specify:
1. Gauge model number.
2. Tank diameter and riser height.
3. Mounting locations.
4. OHM range on TwinSite® versions.
5. Preferred switch on switch gauges, if other than standard.
6. Service pressure.
7. Any listed options.
*Materials and specifications are subject to change without notice. Pressure ratings subject to change due to temperature and other environmental considerations.