Dwyer Instruments SERIES TTM Catalog Page
4 [101.60]
[76.20]
1˝ NPT
2-1/2 [63.50]
4-1/8 [104.7]
SERIES TTM
ELECTRONIC TOTALIZING METER
Batch or Cumulative Totals, Easy-to-Read LCD Display, ±5% Accuracy
Flow Transmitters,
Paddlewheel, In-Line
The SERIES TTM Electronic Totalizing Meter measures batch and cumulative totals in
liquid transfer systems in Nylon or Aluminum for water or fuels. The meter is designed
for any pump, pressure, or gravity feed system with a 3 to 30 GPM (10 to 100 LPM)
ow range.
FEATURES/BENEFITS
• Easily view batch and cumulative totals on the large 4-digit LCD display
• Resettable batch totals ideal for totalizing a single use
• Cumulative total will automatically reset to zero when a maximum reading of 9999 is
obtained
• Models designed for use in water applications are constructed of Nylon® and rated to
150 psig (10.3 bar)
• Aluminum models are calibrated for fuels and rated to 300 psig (20.7 bar)
APPLICATIONS
• Petrochemical
• Cooling towers
• De-icing in airports
• Pest control dispensing
• Chemical blending
• Onsite add water for concrete trucks
MODEL CHART
Model Application Body Material Units
TTM10
Water*
TTM11
Water*
TTM20
Fuels†
TTM21
Fuels†
*Calibrated for use with water
†Calibrated for use with gasoline, diesel fuel
and kerosene
Nylon
Nylon
Aluminum
Aluminum
Gallons
Liters
Gallons
Liters
2-9/64
[54.37]
SPECIFICATIONS
Service: Compatible liquids.
Flow Range: 3 to 30 GPM (10 to 100 LPM).
Wetted Materials: Bearings: Ceramic; Shaft: Tungsten carbide; Rotor: Nylon 6-6;
Rings: 316 SS; Body: TTM10, 11: Nylon 6-6, TTM20, 21: Aluminum; Other: TTM20,
21: Ceramic magnet.
Accuracy: ±5%.
Batch Total Maximum: 9999.
Cumulative Total Maximum: 9999.
Temperature Limits: 14 to 130°F (-10 to 54°C).
Pressure Limits: Nylon models: 150 psig (10 bar); Aluminum models: 300 psig
(20 bar).
Pressure Drop: 2 psi (0.14 bar) @ 30 GPM (100 LPM).
Maximum Particulate Size: 350 microns.
Display: 4-digit LCD, 5/8˝ H.
Auto Shut-off: After 1 minute.
Connections: 1˝ female NPT.
Power Requirements: (2) AAA alkaline batteries, installed functional, user
replaceable.
Battery Life: Approx. 9000 hours.
Weight: Nylon models: 0.4 lb (190 g); Aluminum models: 0.7 lb (340 g).
Agency Approvals: CE.
DWYER INSTRUMENTS, INC. | www.304
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