Install
Hardware Overview
The A8332-8F2D is designed to read a variety of industry standard analog and pulse sensor devices and communicate the
data values back to a Modbus master system using RS485. Applications include data acquisition systems reading
gas/water/electric meters or analog sensors such as temperature, humidity, pressure, and flow.
Features and Specifications
Processor Arm7, field upgradeable firmware.
LED 8 input status LEDs (red), 2 Modbus TX/RX (yellow), 1 power/alive status. (green)
Protocols Modbus/RTU
Power Supply 24VDC, 200mA
3
, Required (not included)
Serial Port
1
RS-485 two wire, 19200 or 9600 baud, 8N1
Inputs
1
8 flex-io inputs with multiple modes: voltage, current, resistance, pulse and status.
Voltage mode: 0-10vdc (min/max/average/instantaneous data)
accuracy: +- 0.25% of full scale at 20ºc
Current mode: 4-20mA (min/max/average/instantaneous data)
accuracy: +- 0.25% of full scale at 20ºc
Resistance mode: 100 ohms to 100k.
Accuracy: 100Ω 1kΩ +- 1% of 1kΩ at 20ºc
1kΩ – 10kΩ +- 1% of 10kΩ at 20ºc
10kΩ – 47.5kΩ +- 1% of 47.5kΩ at 20ºc
47.5kΩ – 100kΩ +- 1% of 100kΩ at 20ºc
100kΩ 10MΩ accuracy unrated.
Pulse mode: intended for use with dry contact outputs. (consumption/rate/runtime/status)
Standard and KYZ modes for form A and C relay outputs
Input terminal supplies 5V at 5mA sense voltage to detect contact closures.
Maximum rate: 10hz, minimum pulse width 50ms.
Adjustable contact closure threshold: 100Ω to 5kΩ, broken wire sense above 10kΩ optional.
Pulse count and runtime values are stored in non-volatile memory.
Outputs
1
: 2 optically isolated outputs
type: opto-fet, dry contacts.
rating: 30vdc, 150mA max.
Isolation
2
: Pulse outputs are isolated to 1500VDC from main board.
RS485 port is isolated to 1500VDC from the main board.
Power input, RS232, and analog/pulse inputs and are non-isolated.
Environmental North America: Indoor, temperature 0º - 50ºc, 0 - 95% humidity, non-condensing.
Europe: Indoor, temperature 5º - 40ºc, 0 - 90% humidity, non-condensing.
EMC FCC CFR 47 Part 15, Class A
EN 61000, EN 61326
Size 4.13” x 3.39” x 1.18” (105mm x 86mm x 30mm)
Mass 3.7 oz (105 g)
1
Inputs are intended for low voltage class II outputs.
2
If the product is used in a manner not specified by
the manufacturer, the protection provided by the
equipment may be impaired.
3
Power consumption listed does not include power
consumed by attached sensor devices. The combined
current draw requirements of all 8 input sensors
should not exceed 200mA.
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