Teledyne hfc-302 ユーザーズマニュアル

  

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The 4-20 mA I/O option can accept a current input.  The 0-5 VDC command signal on pin 

14

 can be 

replaced by a 4-20mA command signal.  The loop presets an impedance of 75 ohms and is returned to 

the power supply through the valve common. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hastings Power Pod power supply/display units are available in one and four channel versions. They 
convert 100, 115 or 230VAC to the ±15 VDC required to operate the flow meter and provide a digital 

indication of the flow rate. Interface terminals for the retransmission of the flow meter analog output 
signal are located on the rear of the panel.  

The Power Pod 100 and 400 models are built with controllers in mind but will work with meters as 
well.  The Model 40 is for flow meters only.  Throughout this manual, when reference is made to a 

power supply, it is assumed the customer is using a Hastings power supply.  Hastings PowerPod-100 and 
PowerPod-400 power supplies are CE marked, but the Model 40 does not meet CE standards at this 
time. The Model 40 and PowerPod-100 are not compatible with 4–20 mA analog signals. With the 

PowerPod 400, individual channels’ input signals, as well as their commands, become 4–20 mA 
compatible when selected. The PowerPod-400 also sports a Totalizer feature.  More information about 

the Power Pods can be found on the Hastings web site.  http://www.teledyne-
hi.com/products/powerpod-series.htm 

Cables are available from Hastings, in various lengths, to connect from the 15 pin "D" connector on the 

back of the Power Pod directly to any of the 200 series and 300 series flow instruments (including 
digital versions).   More information about the available cables can be found in the Power Pod 400 
bulletin on the Hastings web site.  http://www.teledyne-hi.com/pdfs/bulletins.htm