Badger Meter Converters - Manual

INPUT
: 10 - 30 VDC OUTPUT
: 4 - 20 mA
MAX INPUT
CURRENT
: 25 mA
NEMA
4X,
TEMP
CODE
T6
USE IN CLASS I, GROUPS B, C & D, CLASS II, GROUPS E, F & G,
CLASS III
MADE IN USA
INTRODUCTION
The Blancett Active Sensor is a state-of-the-art, digital signal processing
device designed to provide exceptional accuracy at a very affordable
price. Designed for use with turbine meters, the sensor measures and
calculates the flow rate to produce an analog current or voltage output
representative of the meter’s flow rate.
The Active Sensor is offered in two versions with a wide range of
compatible turbine flow sensors:
•
The F-to-I converter provides a 4…20 mA output in a two wire, loop
powered configuration.
• The F-to-V converter offers a 0…5V DC output for those applications
where a Voltage output is preferred.
• Can be used with Blancett 1100, QuikSert, and FloClean series
turbine flow sensors.
OPERATING PRINCIPLE
Fluid entering the meter passes through the inlet flow straightener which
reduces its turbulent flow pattern and improves the fluid’s velocity profile.
Fluid then passes through the turbine, causing it to rotate at a speed
proportional to the fluid velocity. As each turbine blade passes through
the magnetic field at the base of the magnetic pickup, an AC Voltage pulse
is generated in the pickup coil (see Figure 1 ). These pulses are converted
to either a current or Voltage that is proportional to the volumetric flow
through the meter.
ACTIVE PICK-UP
METER BODY
INPUT: 10 - 30 VDC OUTPUT: 4 - 20 mA MAX INPUT CURRENT: 25 mA NEMA 4X, TEMP CODE T6 USE IN CLASS I, GROUPS B, C & D, CLASS II, GROUPS E, F & G, CLASS III MADE IN USA
INPUT
: 10 - 30 VDC
OUTPUT
: 4 - 20 mA
MAX INPUT
CURRENT
: 25 mA
NEMA
4X,
TEMP
CODE
T6
USE IN CLASS I, GROUPS B, C & D, CLASS II, GROUPS E, F & G, CLASS III
MADE IN USA
ACTIVE
PICK-UP TURBINE
ROTOR
OUTPUT
SIGNAL
Figure 1: Schematic illustration of electric signal generated by rotor movement Figure 2: Typical turbine flow meter with active sensor installed
SPECIFICATIONS
Power
Frequency to Current (F-to-I)
Loop powered, 6 V insertion loss maximum 10…30V DC supply range
Frequency to Voltage (F-to-V) 10…30V DC supply range (3-wire output)
Inputs Magnetic Pickup
Frequency 0…3500 Hz
Trigger Sensitivity 30 mV
p-p
Frequency Measurement Accuracy ±1%
Analog Output 4…20 mA current loop
Resolution 1:4000
Temperature Drift 50 ppm / °C (max)
Linearization 10 point using IFC programming utility (PN B220-953)
Threads 5/8-18 UNF
Environmental
Ambient Temperature –22…158° F (–30…70° C)
Humidity 0…90% non-condensing
Sensor/Transducer
F-to-V or F-to-I Active Sensor
SEN-UM-00084-EN-02 (July 2014)
User Manual