Description – GF Signet 8900 Multi-Parameter Controller User Manual
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Signet 8900 Multi-Parameter
2. Description
The 8900 Multi-Parameter Controller takes the concept of modularity to the extreme. The controller comes with backlit display that
provides clear visibility in dark environments. In addition, ultimate fl exibility is achieved via plug-in modules for two, four or six input
channels, universal AC line voltage or 12 to 24 VDC power, up to four analog outputs, and up to four relays. The controller will support
up to four additional relays, for a total of eight, by way of external relay modules.
Absolute input versatility allows mixing and matching of up to six sensors with digital (S
3
L) output. Up to two of the possible six input
channels may be used for Signet fl ow sensors with frequency output. The 8058 Signal Converter module enables any 4 to 20 mA signal
to be used as input to the 8900.
2.1 Compatibility
Model numbers of sensors and external relays compatible with the 8900 are identifi ed in the tables below.
•
For two channel systems, mix and match up to two of any of these sensors.
•
For four channel systems, mix and match up to four sensors with digital (S
3
L) output.
•
For Six channel systems, mix and match up to six sensors with digital (S
3
L) output.
•
The optional external relays connect via digital (S
3
L)
to the I/O Module, but do NOT consume a sensor input channel.
•
pH and conductivity sensors include temperature sensors. These "secondary" measurements are treated by the 8900 as separate
sensors with respect to display, output and relay functionality, but they do NOT consume separate input channels.
SIGNET
FLOW
515
525
2537
2536
2540
2100
2000
2507
2551
2551
2552
2552
Freq.
Freq.
Freq.
Freq.
Freq.
Freq.
Freq.
Freq.
Freq.
Paddlewheels
Turbine, Mini & Micro Flow
Insertion Magmeters
digital (S
3
L)
digital (S
3
L)
digital (S
3
L)
Flow Sensors
8059 External
Relay Modules
2850 Sensor Electronics
with DryLoc Conductivity
Electrodes
8058 4 to 20 mA
Signal Converter
2450 Pressure Sensors
2250 Level Sensors
2350 T
e
mperature
Sensors
2750 Sensor Electronics
with DryLoc pH Electrodes
digital (S
3
L)
digital (S
3
L)
digital (S
3
L)
digital (S
3
L)
digital (S
3
L)
digital (S
3
L) digital (S
3
L)
pH & ORP
Sensors
Cond/Res
Sensors
Pressure
Sensors
Level
Sensors
Temp.
Sensors
Other Accessories
RELA
Y
A
RELA
Y
B
+
S
3
L
-
+
S
3
L
-
OUTPUT
24VDC
+ -
AC INPUT
INPUT
P
ASS-THRU
L
N
RELA
Y
C
RELA
Y
D
COM
PO
WER
Signet 3-8059 Relay Modul
e
Te
st
A
Te
st
B
Te
st
C
Te
st
D
Relay A
Relay B
Relay C
Relay D
LISTED
E171559
®
4-20 mA
Input
N/C 3
Loop1 -
2
Loop1 +
1
+GF+
S L
Output
3
7 +5VDC
8 S L
9 GN
D
3
8058 i-Go™
4-
2
0mA
to S
3
L
Converter
3
-805
8.
6
10D
35VDC MAX
N/C 6
Loop2 - 5
Loop2+ 4
3 2 1
6 5 4
7 8 9
Loop1
PWR
+GF+
N/C
S L
DA
TA
3
Lo
op2
PWR
Signet 8058
Input
4-to-20 mA
W
hit
e (Gr
ound)
Shield
Shield
Black
Red
Red
(
T
ie t
o
Black)
(
T
ie t
o
Whit
e)
Signet 8058 i-Go™
4-20 mA
to S
3
L Converter
+GF+
4-20 mA input
S
3
L Output
Output
S3
L
Black
Analytical Sensors