Honeywell FC-SAI-1620M Analog Input Module.The analog input module SAI-1620m has sixteen analog inputs (0-4 V) and an external voltage readback input (0-4 V). The sixteen channels are safe (safety class SIL3, in compliance with IEC 61508) and have an isolated analog 0 V common to all sixteen channels.
The field signals for the analog inputs of the SAI-1620m module need to be converted from 0-20 mA to a level suitable for the SAI-1620m module.
You can perform this conversion in two ways:
On the field termination assembly module TSAI-1620m, TSHART-1620m, TSGAS-1624 or TSFIRE1624
Analog input conversion module BSAI-1620mE, located on programming connector (Px) on the back of the IO backplane in the 19-inch chassis.
Analog input signals, such as thermocouple or PT-100, can only be used after conversion to 0(4)—20 mA with a dedicated converter (and a TSAI-1620m or BSAI-1620mE module)
Specification:
Approvals:CE, TUV, UL, CSA, FM
Space requirements:4 TE, 3 HE (= 4 HP, 3U)
Power requirements:5 V DC, 35 mA；24 V DC, 35 mA
Number of input channels:16
Input range:0-4.1 V
Input resistance:> 1 MΩ
Maximum load capacitance:100 nF
A/D converter:12-bit
A/D converter inaccuracy:± 1 LSB
Module inaccuracy: < 0.25%
Absolute max. input signal:± 36 V DC
Cross talk between channels:> 60 dB3
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