Tricon 3701 Analog Input Modules 3701N

The following types of AI modules are available for SR use in NPPs:
• Model 3721N (AI 6256) is a TriStation configurable 0-5 VDC or -5-+5 VDC analog input
module with 32 differential DC-coupled inputs. The model has a +6 percent over-range.
The 3721N uses the NG common core.
• Model 3701N2 (AI/NITC 5661) is a 0-10 VDC analog input module with 32 differential
DC-coupled inputs. It is equivalent to the 3701N approved with the Tricon V9 platform,
but has been implemented with surface mount components. The 3701N2 hardware and
software were re-qualified for the Tricon V10 platform.
• Model 3511N (PI 5647) is an 8 channel, non-commoned pulse input module with 16 bit
resolution and +/- 0.01 percent accuracy from 1-20 kilohertz (kHz). It is based on the
3510N approved with the Tricon V9 platform with the same specifications except update
rate has been improved from 50 msec to 25 msec, worst case. This pulse input module
is optimized for measuring speed of rotating machinery. It does not have totalization
capability.
• Model 3703EN (EIAI/ITC 5916) is a 0-5 or 0-10 VDC isolated AI module with 16
differential isolated inputs. This module has a selectable voltage range and upscale or
downscale open-input detection and a +6 percent over-range measurement capability.
Model 3703EN was approved for use with the Tricon V9 platform and was qualified with
the Tricon V10 platform.
• Model 3708EN (EIAI/ITC 5916) is an isolated thermocouple input module with 16
differential isolated inputs. This module can support thermocouple types J, K, T, and E,
and can be programmed to provide upscale or downscale burnout detection. In addition
to the Pass/Fault/Active indicator lights, this module has an indicator light that shows a
failure of a cold-junction transducer. Model 3708 EN was approved for use with the
Tricon V9 platform and was qualified with the Tricon V10 platform.