The 405 Flow Computers handle a wide range of flow applications, where high accuracy and flexibility are required. They will interface to most flowmeters with versions available for pulse and analog inputs.
Features
- Large LCD display
- Operates from 12-28V dc or ac mains
- Scaled pulse output standard
- Accepts 4-20mA and frequency flow inputs
- Provides 8-24V dc transducer power supply
- High accuracy
- Displays Rate, Total (Resettable) and Accumulated Total
- Output Options
- Isolated 4-20mA output
- RS232 and RS422/485 communications interface including printer and computer protocols
- High/low alarm outputs
Models Available
Model 405A
An analog version with a fully isolated input. Inputs include 4-20mA, 0-20mA, 1-5V and 0-10V signals from flowmeters and pressure transducers. Open channel applications can also be handled .
Model 405B
A frequency input version that will accept pulse inputs and open collector inputs from opto-sensors or Hall effect devices.
Model 405D
Frequency input version capable of accepting mV signals from coils, two wire proximity sensors, reed switch inputs and most other pulse type signals.
Model 405LA
In addition to flow, the 405LA accepts a 4-20mA temperature signal and provides temperature correction for general chemicals, petroleums and LPG to API tables.
Model 405LR
Similar to 405LA except that the 405LR has a direct RTD temperature input.
Model 405Q
Frequency or pulse input with non-linearity correction and quadrature signal for measurement of bi-directional flows.
Model 405S
For applications requiring the addition or subtraction of two flows this instrument will accept two frequency inputs and display Rate and Total for each channel.
