Campbell Scientific CR9000X Measurement and Control System - Manual (Page 39)

Overview
OV1.2 Measurement Modules
CR9050(E) Analog Input Module
9050 ANALOG INPUT W RTD
SE
DIF
1
1
H
2
L
2
3
H
4
L
3
5
H
6
L
4
7
H
8
L
5
9
H
10
L
6
11
H
12
L
7
13
H
14
L
8
15
H
16
L
9
17
H
18
L
10
19
H
20
L
11
21
H
22
L
12
23
H
24
L
13
25
H
26
L
14
27
H
28
L
MADE IN USA
FIGURE OV1-5. CR9050
The only difference between a CR9050 and a CR9050E is that the CR9050E is
an "Easy Connect" module type, and includes a CR9050EC. Both the
CR9050E and the CR9051E use the same CR9050EC Easy Connect module
(See Figure OV1-6). The CR9050E typically remains in the CR9000(X)
chassis while each CR9050EC remains connected to the sensors. This allows
one CR9000(X) system to be moved from location to location and be quickly
connected to the sensors on-site.
The CR9050(E) Analog Input Module has 14 differential inputs for measuring
voltages up to
±5 V. Each differential input can be, independently, configured
as two Single Ended inputs. Next to each differential channel, is an analog
ground input. All analog grounds on all CR9050(E), CR9051E, CR9055(E),
CR9060, CR9070, and CR9071E modules in a CR9000X chassis are common.
Sensor
Diff. Channel H
Diff. Channel L .
Differential Channel 1 through 14
Sensor wired up as a Differential (DIF) input
Each differential analog input can, independently, be setup as 2 single-ended
inputs.
Sensor
S.E. Channel
Ground
Single Ended Channel 1 through 28
Sensor wired up as a Single Ended (SE) input
All inputs on the CR9050(E), CR9051E, and CR9055(E) modules are
multiplexed through the single 16 bit A/D on the CR9041 A/D module. The
maximum aggregate throughput for all channels on all modules is 100,000
samples per second. Resolution on the most sensitive range is 1.6
μV.
OV-7