Digital Flow Indicator

Digital Flow Indicator – Overview

These digital indicators are designed for computing and displaying total and instantaneous flow rates in liquid or gas applications. Versions are available for either pulse or analogue inputs, and a batch controller is available for pulse inputs. It is housed in a rugged, powder-coated aluminium enclosure suitable for direct mounting to a flowmeter, pipe, wall or panel.

Digital Flow Indicator – Features

Pulse/analogue inputs
Batch controller available for pulse inputs
Rugged, powder-coated aluminium housing
Available in intrinsically safe and panel-mounted versions
Units are also available mounted directly to Turbine Liquid Flowmeters

Description

Digital Flow Indicator | DS1951

Display

Large 40 x 90mm LCD with 7 x 17mm digits and 11 x 8mm Digits

Flow – up to 7 digits, Total – 7 digits, Accumulated Total – 11 digits

Programming

Via Keypad

Input

Pulse

Sine wave, NPN/PNP open collector, reed switch or NAMUR 0-10kHz (selectable debounce for low frequencies)

Analogue

4-20 mA or 0 – 10V DC with linear or square root functions

Output

Pulse

Open collector output, scaleable pulse per unit, 20Hz max, 50V DC, 300mA max, 25 or 100msec pulse width

Analogue

Passive 4-20mA

Power Supply

7-year lithium battery (4-20mA loop or 5 – 24V DC if required)

Temperature

-15 to 60⁰C

Housing

UV-resistant, powder-coated aluminium casing, stainless steel bolts, Polycarbonate window, EPDM and PE seals

Protection

IP67 (IP65 when panel mounted)

Dimensions

130 x 114 x 58mm

Panel Cut-out

115 x 96mm (L x H)

Cable Entry

1 x M20 and 2 x Pg9 cable glands

Batcher Outputs

Two open collector outputs programmable as high/low alarms or pulse output 50V DC, 300mA max

Overrun Correction

Automatic

Remote Input

One input for Start/Stop batch

Alarm Unit

Outputs: 2 x open collector outputs programmable as high/low alarms or pulse output 50V DC, 300mA max

Remote Input

Reset of total quantity or batch total

Relays / Supply

12 – 24V AC/DC or 80 – 240V AC supply

Relays: 250V AC/1A max

Sensor supply: 8.1-24V DC, 80mA max @24V

Serial Comms

RS232/RS485

Digital Flow Indicator | DS1951

Digital Flow Indicator | DS1951

Digital Flow Indicator | DS1951