Series DMTFB wall-mount Clamp-on Transit Time Ultrasonic Flow Meters provide abundant capabilities for accurate liquid flow measurement from outside of a pipe. It utilizes state-of-the-art technologies in ultrasonic transmission receiving, digital signal processing and transit-time measurement. The proprietary signal quality tracking and self-adapting technologies allow the system to optimally adapt to different pipe materials automatically.

The flow meters of the DMTF family are carefully designed with their user-interfaces self-explanatory and their operation simple and easy. The unique clamp-on fixture design makes the installation very simple, requiring no special skills or tools.
Due to the non-invasive nature of clamp-on transducers, there is no pressure drop, no moving parts, no leaks, and no risk of contamination or corrosion.

Features:

1. Due to the non-invasive nature of the clamp-on technology, there is no pressure drop, no moving parts, no leakage, no risk of contamination and corrosion.

2. Measurement is independent of fluid conductivity with wider applications than magnetic meters.

3. Non-invasive, NEMA 4X (IP-65) clamp-on transducer is easy to install and cost efficient. Since the transducers do not contact with the liquid, fouling and maintenance are eliminated.

4. Parallel operation of positive, negative and net flow totalizers with multiplier, while the output of totalizer pulse or flow rate frequency output are transmitted via open collector terminal.

5. Standard type and Explosion-Proof ATEX(ExdIIBT6; LCIE 09 ATEX 3008) type are available, with wide operating temperature range : -40℃~250℃.

6. Wide range of pipe sizes from DN20 to DN4500.

7. Clamp-on transducers require no pipe cutting or processing interrupted.

8. Wide bi-directional flow range of -40 to 40 ft/s (-12 to 12 m/s).

9. Up to 8GB SD card data logger can memory flow rate, total flow, velocity and time. Time interval

Note: K mode transducers utilize the Round-Clamp method, and the transducers' transmitting and receiving sides are connected with the pipe surface thoroughly to acquire enough coupling area, better reliability, stability, etc.

Applications:

1. Water (hot water, cooling water, De-ionized water, potable water)

2. Petroleum products

3. Chemicals, including alcohol, acids, etc

4. HVAC, energy measurement system

5. Beverage, food and pharmaceutical processors

Specifications:

Transmitter	Power Supply	Standard: 115/230VAC 50/60Hz ±15%, 5VA max. Optional: 10 - 28 VDC, 2.5VA max. Solar supply 12VDC
Velocity	-40 ~ 40 ft/s (-12 ~ 12m/s), bi-directional
Display	4 line×16 English letters LCD back lit, can display total flow, flow rate, velocity and meter running status etc.
Units Rate Totalized	User Configured (English and Metric) Rate and Velocity Display (FWD, NET, REV or BATCH) gallons, ft³, barrels, lbs, liters, m³, kg
Output	4~20mA, OCT Pulse, Relay, RS232C or RS485, options: up to 8 GB Data logger, Hart +(4~20mA), ModBus Protocol etc.
Accuracy	±1.0% of reading at rates >0.5 m/s
±2.0% of reading at rates<0.5 m/s
Sensitivity	Flow Rate: 0.001ft/s (0.0003m/s)
Repeatability	0.2% of reading
Dimensions and Weight	Std.:241*193*76.5, Weight: <2.5kg Exp: 255*220*110, Weight: <5.0kg
Security	Keypad lockout, access code enable
Transducer	Liquid Types Supported	Virtually most any liquid containing less than 2% total suspended solids (TSS) or aeration
Suited Liquid Temperature	Std. Temp. Transducer: -40℃~121℃ High Temp. Transducer: -40℃~250℃
Cable Length	Std: 20 feet (6m); Opt: Maximum: 990 feet (300m)
Pipe Size	S transducer: DN10-50 Std M transducer: DN40 -1000 L transducer: DN1000-4500 K-mode round transducer: DN15-50 (For K, S transducer on the stainless steel pipe, It is better that the thickness of the pipe is more than 3mm. If not, please consult us, we have aother solve plan.)
Dimensions and weight	S: Size:42*25*25; weight:<0.2kg M: Size:60*43*43; weight:<0.5kg L: Size:80*53*53; weight:<1.0kg