16
9900 Transmitter
via 8058-2
ALARM2
ALARM1
TB2
RLY2
TB1
NC
COM
NO
NC
COM
NO
RLY1
SHLD
B
A
+
–
24 VDC
ISL 1
4-20mA/
RS-485
+
+
+
+
RED
WHT
ORG
BLK
SHLD
YEL
L7
L7
L4
L2
L1
TB4
BRN
GRN
EMCF1
TB3
L3
L5
R4
R1
R3
R2
Q2
D2
D1
Q1
+
+
3 2 1
6 5 4
7 8 9
Loop1
PWR
N/C
S L
DATA
3
Loop2
PWR
+GF+ SIGNET
Black (5 VDC)
Black
White (Gnd)
Red (S
3
L)
Red
Power
Connection
DA
T
A
GND
V+
SHLD
9900
S
3
L Inputs
Technical Notes:
• All of the electrical
connections to the
instrument are made
through the terminal box.
The connections are labeled
within the terminal box and
are self-descriptive.
• A plug is inserted into the
RS-485 cable bulkhead
when shipped to ensure a
watertight seal. Remove
and discard this plug when
cabling to this connection.
• The bulkhead will accept
cable diameters from
5.8 mm (0.23 in.) up to
10 mm (0.34 in.).
The terminals are designed to
accept wires in the range of
14-28 AWG. All wires should
be stripped to a length of
6 mm (0.25 in.).
• Ensure that the watertight
seal is maintained after the
terminal box has been wired
for operation. If any of the
bulkheads are not tightened
properly around a cable
or plug, the ratings of the
instrument will be jeopardized
and there is a possibility of
creating a shock hazard.
• Do not run 4 to 20 mA cables
in the same conduit as power.
Signet Turbidimeter
ENTER
via 8058-1
ALARM2
ALARM1
TB2
RLY2
TB1
NC
COM
NO
NC
COM
NO
RLY1
SHLD
B
A
+
–
24 VDC
ISL 1
4-20mA/
RS-485
+
+
+
+
RED
WHT
ORG
BLK
SHLD
YEL
L7
L7
L4
L2
L1
TB4
BRN
GRN
EMCF1
TB3
L3
L5
R4
R1
R3
R2
Q2
D2
D1
Q1
+
+
Output
S
3
L
Signet 8058 i-Go™
4-20 mA
to S
3
L
Converter
+GF+
4-20 mA input
S
3
L Output
Black
Red
Black
Red
Shield
Shield
White
DA
T
A
GND
V+
SHLD
Input
4-20 mA
Power
Connection
9900
S
3
L Inputs
Wiring for:
4150
Connect 4 to 20 mA wires to
terminal board TB3 as shown in
the
fi
gure.
Refer to the latest revision of
the Signet 4150 Turbidimeter
Manual (3-4150.090) for further
information.
Technical Notes:
When using the 8058-2, connect the
loop source to Channel 1 input ONLY.
Sensor Wiring