Owner's manual

4 Signet 2537 Flowmeter
Installation
Plastic sensor installation tips
• Inspect the sensor O-rings for nicks and other damage that
may compromise the seal.
• Lubricate O-rings with a non-petroleum based, viscous
lubricant (grease) compatible with the system.
• Using an alternating/twisting motion,
lower the sensor into the  tting, making
sure the conduit ports on the yellow
housing are pointing in the direction
of  ow.
• Engage one thread of the sensor cap
then turn the sensor until the alignment
tab is seated in the  tting notch.
sensor
cap
tab
notch
Lubricate
O-rings
Wiring
Electrical connections to this product should be made only by
quali ed personnel.
To access the wiring terminals:
• Turn yellow cap ¼ turn counterclockwise to remove.
• Remove the two retaining screws and remove the black
cover.
• Route all cables through the conduit ports before connecting
them to the terminals.
• Wiring terminals are rated for 16 to 22 AWG conductors.
• The cable must be 7 to 10 mm in diameter (0.275 to
0.394 in.) to seal properly in the liquid tight connector.
• The conduit ports have ½ inch NPT threads. After routing the
cables, seal the port with a liquid tight conduit connector
(3-9000.392-1) or with conduit.
• For conduit installations:
• Thread conduit with ½ in. NPT threads directly into the
conduit port.
• For conduit with ISO threads, use the black thread adapter
included with the connector kit.
• To comply with NEC requirements, do not use any metal
conduit in the installation.
2537 Paddlewheel Flowmeter
for ½ in. to 4 in. pipe
130 mm
(5.12 in.)
97 mm
(3.82 in.)
2537 Paddlewheel Flowmeter
for 5 to 8 in. pipe
171 mm
(6.73 in.)
97 mm
(3.82 in.)
Dimensions
S1
S2
Blk Red Shld
-
+
3-8900.621C
I/O Module 3-8900.401-X
1
2
3
4
5
6
7
8
9
10
11
12
13
14
+5VDC (Black)
Freq. Input (Red)
GND (Shield)
+5VDC (Black)
Freq. Input 2 (Red)
S L (Red)
GND (White/Shield)
+5VDC (Black)
S L (Red)
GND (White/Shield)
3
3
Analog Output 1
Analog Output 2
(if applicable)
(if applicable)
Frequency
Input
1
Frequency
Input 2
OR
S
3
L
Input
2
S
3
L
Input
1
+
-
+
-
S1
S2
Blk Red Shld
-
+
DATA
GND
V+
SHLD
Wiring: Digital (S
3
L) Output
The Digital (S
3
L) output is compatible with the 3-8900 Multi-Parameter Controller
and the 3-9900 Transmitter.
-
+
S1
S2
Blk Red Shld
-
-
+
+
-
+
-
+
-
+
-
+
T
T
P
t
WIRING DIAGRAM
BLK
RED
SHLD
Sensor
PW/OUT
+
Power Rating:
5 - 6.5VDC 0.03 AMP
3-2505.613A
T
P
t
T
P
t
T
P
t
S1
S2
Blk Red Shld
-
+
WIRING DIAGRAM
BLK
RED
SHLD
Sensor
PW/OUT
+
Power Rating:
24VDC 0.03 AMP
3-2505.611A
N/O
COM
N/C
Dry-Contact
Relay
Relay Rating:
5A @ 250VAC
5A @ 30VDC
Using the liquid-tight
connector
Using conduit
HAND-TIGHTEN THE THREADED NUT ONTO THE IN-
STALLATION FITTING. DO NOT USE TOOLS! DO NOT
USE THREAD SEALANT OR LUBRICANTS ON THE
FITTING THREADS OR THE SENSOR CAP.
Connection to
9900 Transmitter
Connection to
8900 Controller