Campbell Scientific CR9000X Measurement and Control System - Manual (Page 46)

Overview
CR9058E Isolation Module
CR9058E 60V ISOLATED ANALOG INPUT MODULE W/RTD MADE IN USA
CR9058EC
60V ISOLATED ANALOG INPUT CONNECTOR FOR CR9058E MADE IN USA
FIGURE OV1-9. CR9058E with CR9058EC
The CR9058E is a 10-channel, differential input isolation module. One
CR9058EC Easy Connector Module is included with the CR9058E; additional
CR9058ECs can be purchased as accessories. The CR9058E typically remains
in the CR9000(X) chassis while the CR9058EC remains connected to sensors.
This allows one CR9000(X) system to be moved from location to location and
be quickly connected to the sensors on-site.
Next to each channel is an isolated ground. The CR9058E ten input channels
cannot be configured as Single Ended inputs. Each channel has a 24-bit A/D
converter which supplies input isolation for up to
±60 VDC continuous
operational voltage conditions. Inputs with voltages greater than 469 VDC
with respect to data logger ground can damage the logger. The full-scale
ranges available are
±60 VDC, ±20 VDC, and ±2 VDC with a resolution to 2
μVolts. Due to its superb signal to noise ratio, and good resolution, an
accurate thermocouple measurement can be made on the 2 Volt range code.
The measurement speed for the CR9058E is lower than the other CR9000X
modules, but this is somewhat offset by the fact that all of the channels are
sampled simultaneously:
Full Scale Maximum Maximum
Range Resolution Throughput
± 60 V 300 uV 650 Hz
± 10 V 100 uV 650 Hz
± 2 V 10 uV 650 Hz
CR9058E SUPPORTED MEASUREMENT INTRUCTIONS:
ModuleTemp Module Temperature
VoltDiff
Differential Voltage
VoltSe Single-Ended Voltage
See Section 3.2 CR9058E Isolation Module Measurements for measurement details.
See Section 7 Measurement Instructions for Instruction details.
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