Description –

The Data Controller (DC) at the local site accepts a 4/20 mADC tank level signal and compares it to internal turn on and turn off setpoints. The DC, in turn, transmits pump on and off commands to the remote site DC via the leased line/dial-up modems. The remote DC converts those commands to contact outputs for operating the motor starters. The remote site DC accepts two 4/20 mADC pump flow signals and two pump running contacts and transmits them to the local site and converts them back to 4/20 mADC and contact closures for local display and recording. The local site DC closes a contact in the event there is a communications failure.

Specifying/Ordering –

Product Application Number (PAN)

DLS7

Specifications –

            E – NEMA 1 Rated Enclosures

P – Power – 115 VAC, 60 Hz,

I1 – Input Analogs – 1 each 4/20 mADC, Z = 250 Ohms

O1 – Output Analogs – 1 each 4.20 mADC

I1 – Input Contact Closures – 2 each Dry

O2 – Output Contact Closures – 2 each

Use the following table to specify other options.

Example – DLS7–EA-PB

Resulting Specifications –

            E – NEMA 4 Rated Enclosures

P – Power – 24 VDC