MODEL Q-16 
The “Harwil” Model Q-16. Maximum Reliability at Minimum Cost.
The Q-16 is the newest addition to Harwil’s heavy-duty line of flow switches. The switch is used to signal, start, or stop electronically operated equipment when flow or no-flow conditions occur. The Q-16 benefits from 40 years of flow switch development experience for every conceivable application.
Continue reading Q-16 Flow Switch Max RELIABILITY – Min COST
Premier manufacturer’s of AC & DC current, voltage, power and frequency transducers since 1965. American Aerospace Controls is a company dedicated exclusively to the design and manufacture of electrical transducers for high reliability defense, aerospace and space flight applications. Our unique in-house testing for manufacturing and development meets Space Flight, Mil Grade, EMI Standards and DO-160 for reliability. The inherent quality levels of our manufacturing in compliance with ISO 9001 and AS9100 provides rail transit, commercial and industrial markets with standard catalog products produced in a high reliability environment. These markets benefit from customized products to meet specific needs that are not readily available.
Feature Product:
DC Current Transducer: Series 920
Output: 4-20mA
(2-Wire, loop power)
Closed-Loop Technology
Superior Accuracy and Stability
Over Wide Temperature Range
Automating & updating measurement and control functions in existing systems.
Local & remote station power & battery back-up current monitoring.
Field service, maintenance & trouble shooting DC systems.
DC current sensing in laboratory experiments and special projects.
Specification:
INPUT Accuracy
P/N: 920-50 0 to +50Adc 1.25%FS See
P/N: 920-75 0 to +75Adc 1.0%FS Note
P/N: 920-100 0 to +100Adc 1.0%FS (1)
P/N: 920-125 0 to +125Adc 1.0%FS
Continuous Overload………………±5000Adc
OUTPUT
Current Signal………………………..4 to 20mAdc
Current Signal @ Overload………24mAdc (typical)
Accuracy (Over –40 to +85°C)….See above table & Note (1)
Response Time (10 to 90%)…….10milli-seconds
Load Resistance…………………….250Ω nominal (0 to 300Ω)
Protection………………………………Reverse Polarity Protected
POWER SUPPLY
Supply Voltage……………………….+24Vdc (+18 to +28Vdc)
Current Drain………………………….4 to 24mAdc
Voltage Transient……………………±40V T< 5mS
ENVIRONMENTAL & PHYSICAL
Operating Temperature……………-40 to +85°C
Storage Temperature………………-45 to +85°C
Isolation (Input to Output)………..2kV rms @ 60Hz / 1min
Insulation Resistance………………500MΩ @ 500Vdc
Molded Plastic Case……………….UL Flammability rating 94V-O
Weight…………………………………..14 oz max
Finish (Blue Texture)……………….Panatone No. 294C
Note (1): Accuracy includes combined worst-case effects of: zero offset; temperature; hysteresis; supply swings and current cable position.
“The Standard” OEM Pressure Transmitter 4-20mA Output.
The M6420-50 is a two wire, 4-20mA pressure
transmitter and is available in standard ranges from
0.5 bar to 600 bar, or may be scaled to customer
requirements. All ranges are available in gauge or
absolute format.
Description:
The M6420-50 pressure transmitter is based on a four
active arm strain gauge bridge fused to a high purity
alumina ceramic diaphragm, offering high natural
output coupled with superb chemical and corrosion
resistance. This is housed within a stainless steel case with integral electronics and is supplied with a plug and socket electrical connection. Pressure connection is a G1/4 male thread as standard. Other threads are available on request.
Sensit-Pressure M6420 Literature 
Illustrating the various method of correct Incremental Magnetic and Absolute Encoder Mounting Configurations.
In all cases refer to relevant installation instruction and correct fit-up tolerances. The use of anti-backlash coupling for shaft to shaft coupling is advised.
Encoders are applied to measure speed and position in a wide variety of applications and are therefor available with numerous mounting styles. The mounting style should be selected carefully to best fit the application at hand.
sensit 