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AI-SERIES MULTI-CHANNEL PID TEMPERATURE CONTROLLER
AI-7028 / AI-7048
Operation Instruction
Ver. 7.8
1. SUMMARY
Multi-channel temperature controller provides thermocouple inputs and solid-state SSR outputs.
Each channel can be set as different type of inputs and works independently. This controller can
either used independently or used with computer or PLC (Programmable Logic Controller). The
supply power can be ordered as 24VDC/AC or 100~240VAC. It complies with ISO9001 quality
assurance. It is highly reliable with EMC standard compatible. The power and all I/O terminals has
passed 4KV/5KHz EFT test. It is able to be stably working under strong interference. By adopting
YUDIAN’s new technology, the anti-interference power of multi-channel inputs is as strong as that of
single channel measurement.
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Providing up to 4 channels of programmable inputs, supporting multiple thermocouple inputs, K,
S, E, J, B, N, T, WRe5-WRe25 and etc, with automatic cold junction compensation and linear
voltage (mV) inputs with user defined scale. Individual digital filtering for each channel are
possible to be adjusted or disabled.
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High performance hardware design, which greatly decreased temperature drift and the
interference among the 4 channels. Therefore, this multi-channel controller obtains the same
measurement accuracy and anti-interference ability as that of single channel controller.
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Rail mounted panel with code D5/E5/D7/E7 are available. Those panels without display can be
programmed by connecting the external handset display E8.
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Apart from rail mounted panel D5, every channel has independent high/low limit alarm or
deviation alarm outputs. Those alarms can be assigned to different alarm output slot (AL1 or
AL2) by programming. Alarms from different channels can be assigned to the same alarm slot or
different alarm slots.
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There are 12 programmable Field Parameters. Users can tailor-made the parameter table.
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Advanced communication functions, compatible with the communication protocol of other AI
series instruments such as AI-708 high precision artificial intelligent regulator/temperature
controller. One unit of AI-7048 in communication works as if there are 4 individual units of AI-708
controllers working.
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Among this multi-channel controller series, AI-70482 provides 4 channels of individual inputs
with weak electronic signal isolation among channels. It is suitable for application of grounded
thermocouples of which the negative pole of thermocouple is connected to the probe shell.