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• Input galvanically separated fromoutput and supply
• Current or voltage input
• Signal conversion
• Current and voltage output
• 24 VDC supply or universally supplied
• Applicable in PELV/SELV circuits
Applications:
Galvanic separation of analogue signals (ground loop elimination).
• Measurement of floating signals.
• Signal conversion within the ranges: 0...10 VDC or 0...50 mA on the input and 0...20 mA and 0...10 VDC in fixed ran-ges on the output.
Technical characteristics:
General:
The 2204 uses microprocessor technology for the selection of gain and zero offset, yet the signal conditioning is ana-logue with a fast response time of less than 25 ms. In standard ranges, the 2204 is programmable by use of internal dipswitches within the input - and output ranges of the order schedule. Provided that front adjustments are still sealed, the unit needs no adjustment after programming. Universally supplied units have a 3-port galvanic separation between input, supply, and output.
Input:
Current or voltage in standard or special ranges within the measuring range. Standard input voltage: 0/0.2...1 V, 0/0.5...2.5 V and 0/2...10 V. Input resistance: typ. 10 ΜW. Standard input current: 0/1...5 mA or 0/4...20 mA. Input resistance: norm. 50 Ω (0/4...20 mA).
Output:
The output can be ordered for standard currents and voltages or special versions within the signal range.
Standard output current
(pin 3) 0/4...20 mA and 0/1...5 mA acc. to order schedule with the possibility of reversal. Current limit: 23...28 mA.
Standard voltage output
(pin 2) is achieved by shortcircuiting pins 2 and 3. The current signal is available between pins 2 and 1. For voltage signals in the ranges 0...1 VDC, a 50 Ω shunt (DP 2-1) is applied; in the ranges 0...10 VDC, a 500 Ω shunt (DP 2-2) is applied. Using both signals simultaneously, the mA loop to ground must go through the internal shunt. Adjustment of 0 and 100% is possible at the front ± 10%, but please note that the basic calibration is thereby lost.
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