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Manual: 151-082010 300-302 Series Page 6 of 31
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.
1.4. Other Accessories
1.4.1. Hastings Power supplies
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
1.4.2. Interconnecting Cables
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