Measurement host (primary meter)

accuracy

1%

repetitiveness

0.2%

Maximum flow velocity

64m/s

measurement period

200mS (5 times per second, 128 sets of data collected per cycle)

Measuring principle

Continuous flow ultrasonic time difference principle, 4-byte IEEE754 floating-point operation

Display interface

Can connect to 2 × 10 backlit Chinese characters or 2 × 20 character LCD displays

operation

External 16 key touch keyboard and PC computer parameter software

input

3-channel 4-20mA input is optional, with an accuracy of 0.1%. It can input signals such as pressure, liquid level, temperature, etc., and can also be used as a digital interface.

Two way three wire PT100 platinum resistor input circuit, capable of achieving heat metering function (enthalpy difference method)

output

Current signal (optional module): 4-20mA, impedance 600 Ω floating, accuracy 0.1%.

Frequency signal (optional module): Choose between 1~9999Hz, OCT output.

Pulse signal: positive, negative, net flow and heat accumulation pulses, dual OCT output (with one pulse width programmable between 6-1000ms, default 200ms).

Alarm signal: Dual OCT output, with up to 20 selectable source signals.

Data interface: Isolated RS485 serial interface.

communication protocol

MODBUS protocol, MBUS protocol, FUJI extension protocol (compatible with communication protocols for flow meters and water meters of Huizhong Company), it is recommended to use MODBUS-RTU protocol or MODBUS-ASCII protocol

Other functions

Automatically remember the accumulated traffic and work status of the previous 64 days, 32 months, and 2 years; Automatically remember the first 16 power on/off times and flow rate, and can achieve automatic or manual replenishment;

Programmable quantitative controller (can be started using external input signals or MODBUS commands);

One bidirectional serial interface can connect multiple external devices such as 4-20mA and data loggers;

The working parameters can be fixed in the FLASH memory inside the machine and automatically retrieved when powered on;

Users can upgrade software by sending code files via email

Fault self diagnosis function.

Fault time timer.

operating current

50mA (without connecting keyboard display and buzzer not sounding)

Backup current

Using CR2032, maintain 100000 hours of data without loss under 24VDC power outage conditions

ambient temperature

-10 ℃~70 ℃ (please contact the manufacturer if the temperature range exceeds this requirement)

working hours

continuous

version number

TDS12

TDS13

TDS14

TDS15

power supply

24VDC

8~30VDC

24VDC

85~264VAC/24VDC

Dimensions (mm)

Φ84

116×62

92×36

150×95

sensor

External binding type

Standard S1 type, suitable for pipe diameter DN15~100mm

Standard M1 type, suitable for pipe diameter DN50~700mm

Standard L1 type, suitable for pipe diameters ranging from DN300 to 6000mm

High temperature S1H type, suitable for pipe diameter DN15~100mm

High temperature M1H type, suitable for pipe diameter DN50~700mm

Sensors from other manufacturers

plug-in

The material of the measuring pipeline is not limited (for non-stop installation) and is suitable for pipes with a diameter of DN80 or above.

pipe section

π - type pipe segment type: suitable for pipe diameters of DN25~DN40, with a measurement accuracy of ± 0.5% for the entire machine

Standard pipe section type: suitable for pipe diameters ranging from DN50 to DN1000, with a measurement accuracy of ± 0.5% for the entire machine

signal cable

Special SEYV75-2 shielded twisted pair cable, factory standard 5 meters, can be extended up to 500 meters for specific occasions (not recommended).

Protection level

IP68 (capable of working in water immersion)

Measurable pipeline

pipe material

Steel, stainless steel, cast iron PVC、 Copper, aluminum, cement pipes, and other materials with dense texture are allowed to have lining.

Lining material

Epoxy asphalt, rubber, mortar, polypropylene, polystyrene, polyester, polyethylene, hard rubber, rubberwood, polytetrafluoroethylene.

inner diameter

15mm~6000mm (the inner diameter of the π - shaped pipe segment can be as small as 2mm)

Straight pipe length

Upstream ≥ 10D, downstream ≥ 5D, distance from pump outlet ≥ 30D.

Measurable pipeline

category

Uniform liquids such as water, seawater, acidic and alkaline liquids, food oil, gasoline, coal, diesel, crude oil, alcohol, beer, etc. that can propagate continuous ultrasonic waves.

turbidity

≦20000ppm， The sewage measurement results are good, and the vast majority of sewage pipelines can be stably measured.

temperature

-40℃~160℃

flow direction

It can measure the forward and reverse flow separately and measure the net flow.