Aft AFT-2000W - Page 6

AFT-2000W User Manual
6
Measurement
Period
500ms
Display
LCD with backlight, display accumulated flow/heat, instantaneous
flow/heat, velocity, time etc.
Output
Analogue output: 4-20mA or 0-20mA current output. Impedance 0∼
1k. Accuracy 0.1%.
OCT output: Frequency signal (1~9999HZ)
Relay output: over 20 source signal (no signal, reverse flow etc.)
RS485 serial port
Input
Three analogue input
Three-wire PT100 resistor input (optional)
Other functions
Automatically record the totaliser data of the last 64 days / 64
months / 5 years;
The power-on time and corresponding flow rate of the last 64 power
on and off events. Allow manual or automatic flow loss
compensation
The instrument working status of the last 64 days
pipe
material
Steel, stainless steel, cast iron, cement pipe, copper, PVC,
aluminum, FRP etc. Liner is allowed
Size
15-6000mm
Straight pipe
section
In the upstream it must be beyond 10D, in the downstream it must
be beyond 5D, in the upstream the length must be beyond 30D from
the access of the pump. (D stands for pipe diameter)
Liquid
Types
Water, sea water, industrial sewage, acid & alkali liquid, alcohol,
beer, all kinds of oils which can transmit ultrasonic single uniform
liquid
Temperature
Standard: -30˚C - 90˚C ，High-temperature：-30˚C - 160˚C
Turbidity
Less than 10000ppm, with a little bubble
Flow Direction
Bi-directional measuring, net flow/heat measuring
Environment
Temperature
Main Unit: -30˚C - 80˚C
Transducer: -40 ℃ -110 ℃ , Temperature transducer: select on
enquiry
Humidity
Main Unit: 85% RH
Transducer: water-immersible, water depth less than 3m
Cable
Twisted Pair Line, standard length of 20m, can be extended to 500m (not
recommended); Contact the manufacturer for longer cable requirement.
RS-485 interface, transmission distance up to 1000m
Power Supply
AC220V or DC24V
Power
Consumption
Less than 1.5W
Protocols
MODBUS, M-BUS, Fuji extended protocol and other factory protocol