• Simple touch switch set-up with English statement prompts by approved IR
• Low cost – High performance
• Programmable dual channel quadrature input or single pulse train with DIP switch selection for turbine, reed & open collector
• Background total for main flow and additive flow
• Dual 4-20mA output with Proportional and Integral algorithm control from the main and additive flow signal for modulating valve control for continuous dispensing of additive
• Main flow and additive flow rate display
• Sensor supply that can be adjusted from 8 to 20VDC
• Micro SD card of 8GB for storage of batching data
• 85 to 265VAC 47-63 Hz universal supply or factory fitted 10 to 40VDC isolated supply
• 4 of voltage free inputs 24VDC tolerant 1 dedicated squirt input, 1 of dedicated alarm reset4 of voltage free inputs 24VDC tolerant 1 dedicated squirt input, 1 of dedicated alarm reset
• 2 of PD / turbine input for main flow
• 6 of single train input for additive flow
• 1 of low flow alarm, 1 of pulse output as 1 PPL; 10 PPL, 100 PPL or 1000PPL
• 6 of relay outputs 240VAC tolerant SSR@ 2Ampere OR
• 6 of mechanical relay with changeover contacts rated @ 2 Amperes resistive
• 1 of 4-20mA output that can drive 500 Ohms with PI algorithm control with a 50:1 turn down ratio
• 1 of temperature input
• Communications: 2 wire RS485
• 6-off Pacing Signal Inputs (DC)
• 6-off Permissive Inputs (AC)
• 6-off Injector Feed-Back signals (DC)
• 6-off Injector SOV Outputs (AC)
• 6-off Pump Start Signals AC

The controller can operate in:
Pace Mode
Injection rate on the main flow throughput and a user programmed algorithm
Permissive Pace Mode
Injection rate on the main flow throughput, a user programmed algorithm and enabled by a permissive input
Slave Mode
Inject additive enabled by the squirt button or remotely wired to the permissive input
Control Mode
Start injection from first received main flow pulse and IAI algorithm, and stop at programmed batch size
Remote mode
Algorithm and start signal from communication link

Specification

INPUT DETAILS

The IAI accepts a dual channel input from 0 to 5KHZ and channel one is DIP switch selectable for open collector, reed, Hall and turbine signals (from 20mV peak to peak)

STANDARD FEATURES

• External squirt button included on IR remote control
• Injector block size 4 [.01 to 1.0 LPM] selection size by application
• Injector block size 6 [.03 to 1.66 LPM] selection size by application
• Injector block size 8 [.25 to 10.0 LPM] selection size by application
• Controller accuracy +/- 0.5% with a repeatability of +/- 0.25%

DISPLAY

The IAI incorporates a 480mm wide x 232mm high colour TFT LCD graphics module backlight

INFRARED REMOTE

Four button IR remote is potted in epoxy and complies with AS/NZS 60079.18: 2005

ANALOGUE OUTPUT

The IAI has two 4-20mA outputs for controlling two modulating valves or pumps and two pulse inputs from flow meters. Proportional and Integral control is used to control both flow rates either independently or in ratio.

ENVIRONMENTAL PARAMETERS

• -20 to 50°C
• Humidity 5-95%
• Protection class to IP66

ELECTRICAL PARAMETERS

• 4 of voltage free inputs 24VDC tolerant
• 1 of quadrature input for main flow and 1 of quadrature input for additive flow
• 4 of open collector outputs 24VDC tolerant @ 100mAmpere
• 1 of timed open collector output 24VDC tolerant @ 200mAmpere
• 2 of relay outputs 240VAC tolerant SSR @ 2Ampere or
• 2 of mechanical relay with changeover contacts rated @ 2Ampere resistive
• 1 of 4-20mA output that can drive 500 Ohms with PI algorithm control with a 50:1 turn down ratio
• Communications: 2 wire RS485 with Modbus RTU protocol (Optional)

POWER SUPPLY

85 to 265VAC 47-63 Hz or DC to DC converter isolator from 10 to 40VDC. An adjustable transducer power supply of 8 to 20VDC at 50mA is incorporated.

MOUNTING DETAILS

• Surface mounting Govan EXD Cast Aluminium enclosure of case; dimensions 210mm wide by 210mm high by 175mm deep with fixing centres of 187mm wide x 187mm high by M8 screws with IECEX (Approval to IECEX EX 11B T6 IP66)
• 4 of M20 cable entries available for user connection
• Weight is 15Kg

ORDERING INFORMATION

• Model Structure: model/input/display/power supply/options
• Sample Number: IAI/2xB/0-99999999/VAC
• CE Conformity (pending)