Spectrum Spectral Analysis and High-Speed Analog Input Module
Maximize Your
High-Speed Dynamic Applications
Designed for analog measurements
weather applications supported water applications supported energy applications supported gas flux and turbulence applications supported infrastructure applications supported soil applications supported

Overview

The Spectrum Spectral Analysis and High-Speed Input Module—available in three-channel or nine-channel variants—offers high-speed synchronous sampling for analog inputs, with dedicated analog input hardware that includes amplifiers, filters, and analog-to-digital converters (ADC).

Note: The Spectrum 109 version with nine channels will be coming soon.

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Images

Spectrum 103
Spectrum 103
Spectrum 103
Spectrum 103
Spectrum 103
Spectrum 109
Spectrum 109
Spectrum 109

Compatibility

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Data Loggers

Compatible Note
CR1000Xe Compatibility is limited to a 1 kHz maximum and requires OS version 4 or greater. Limited to one Spectrum on the CPI channel for speeds less than 1,000 Hz.
CR6 Compatibility is limited to a 1 kHz maximum and requires OS version 10 or greater. Limited to one Spectrum on the CPI channel for speeds less than 1,000 Hz.

Distributed Data Acquisition

Compatible Note
GRANITE 10 This preferred option requires OS version 1 or greater.
GRANITE 6 (retired) Compatibility is limited to a 1 kHz maximum and requires OS version 1 or greater.
GRANITE 9 This preferred option requires OS version 1 or greater.

Specifications

Operating Temperature Range -40° to +70°C
Storage Temperature -55° to +85°C
IP Rating IP20
Humidity 0 to 99% (non-condensing)
Number of Channels
  • Three differential (Spectrum 103)
  • Nine differential (Spectrum 109)
Input Range ±10000 mV, ±5000 mV, ±1000 mV, and ±200 mV
Common-Mode Input Voltage ±15 Vdc
Absolute Maximum Input Voltage ±16 Vdc
A/D Converters 32-bit SAR ADCs
Measurement Accuracy @ 20°C ±(0.04% of reading ±130 μV)
Note: The accuracy specification does not include sensor error or measurement noise.
Input Resistance 80 MΩ
Input Time Constant 230 ns
Input Offset Current 5 nA typical, maximum @ 50°C
Processor Digital signal processor 32-bit with floating point units
Processor Speed 400 MHz
Memory 128 MB SRAM
Power Requirements 10 to 30 Vdc voltage
Dimensions 21.6 x 13.7 x 7.6 cm (8.5 x 5.4 x 3.0 in.); additional clearance required for cables and wires
Weight 1.6 kg (3.53 lb)