Description
This product was designed to provide a cost-effective way to add eight, individually isolated, analogue inputs to an existing data acquisition system. Modbus RTU and Danntech RMF serial protocols are supported with isolated RS485 and USB interfaces.
The individual input isolation is vital in many applications especially in the original application of DC battery bank monitoring in a telecom system where the inputs are a combination of mV current shunt inputs (measuring battery currents) and DC voltage (measuring battery voltage).
Isolated dual power supply inputs allow either battery bank to power the AIM-08.
Specifications
- Eight analogue inputs.
- One digital counter/timer input for period or frequency measurement.
- Communications protocols Modbus RTU and Danntech RMF.
- Separate hardware communications watchdog relay output.
- DC voltage inputs from 0-30 mV up to 0-100 V, current inputs 4-20 mA, 0-20 mA.
- Loop powered 4-20 mA input also available with +15 V, 22 mA loop supply.
- Different input types are link/jumper and mini-DIP switch selectable, each input can be different.
- 12 bit analogue input resolution. (accuracy better than ±0.25% of the range).
- Analogue response time fastest at less than 0.1 seconds.
- Bi-colour LED indication of each input status with configurable indication values.
- Input calibration using switches and push button to capture input values for zero and full scale.
- Standard Input Value settings for each input status LED display are set up using switches and push buttons to capture input values for minimum and maximum input values.
- Individual instrument earthing, selectable using links/jumpers for each input and the RS485 communications.
- Isolation >500 VDC between each input, main processor, communications, power in – A, power in – B, watchdog relay output and the digital input.
- Communications protocols Modbus RTU and Danntech RMF.
- Communications isolated RS485 and USB at up to 115.2 kbps.
- Address and communications speed DIP switch selectable.
- Plug-in screw terminals with each input to include screen.
- The input connectors are keyed so that analogue inputs cannot be inadvertently mixed and cause damage. Multi-strand wire connections – cross sectional area 2.5mm2.
- Optional dual isolated power supplies 9-36 V and 18–72 V for redundancy purposes. Power required: 6.8 W plus 0.4 W per loop powered input.
- Operating temperature range -10°C to +60°C.
- Test sheet supplied for each unit after burn-in with calibration and accuracy information shown for each input.
- Enclosure – plastic, IP20, DIN rail mounting.
- Product dimensions: 210 x 110 x 60 mm (L x W x H off rail) including connectors. Weight 0.4 kg.
- Packaged size: 435 x 330 x 275 mm (L x W x H). Weight 0.6 kg.
Documentation
- Product Brochure
- Application Notes (Coming Soon)
- User Manual (Coming Soon)
Applications