Signet 2820-1 User manual

Signet 2820 Series Conductivity Sensor Instruction Manual
1. Wiring
2. Recommended Position 3. 2819/2820/2821 In-line Installation
SAFETY INSTRUCTIONS FOR IN-LINE ELECTRODE INSTALLATION
1. Do not remove from pressurized lines.
2. Do not exceed maximum temperature/pressure specifications.
3. Wear safety goggles or face shield during installation/service.
4. Do not alter product construction.
5. Disconnect instrument power before wiring this sensor.
Failure to follow safety instructions may result in severe personal injury!
Customer
supplied
pipe tee/
reducer
Standard
fitting kit
Hole upMark hole
position
3/4 in. NPT
Hand tighten only!
Optional
fitting kit
Hole upMark hole
position
Custome
r
supplied
pipe tee/
reducer
1/2 in. NPT
Hand tighten only!
O-ring
O-ring Sealant
Sealant
Signet 5800CR
• Use three conductor shielded cable for cable extensions up to 30 m (100 ft) max.
• Shield must be maintained through cable splice.
• Disable power to instrument before connecting this sensor.
RED
WHITE
BLACK
SILVER (SHLD)
Shld
Signal IN
Temp. IN
Iso. Gnd
CH 2
CH 1
RED
SILVER (SHLD)
BLACK
SILVER (SHLD)
BLACK
C NO Tx GND Rx
CH2
S2 T2 S1 T1 SGCNO
R+ R-
RLY3 RLY4 SERIALANL2 CH1
1 2 3 4 5 6 7 8 9 10 11 12 13 14
WHITE
RED
WHITE
Signet 9050CR
In-line
2821-1
Use caution to avoid air bubble
or sediment trapping inside the
electrode cavity.
Submersible
OR
*3-2820.090*
3-2820.090-1 Rev. K 11/04 English
English
Warning!

2Signet 2820 Series Conductivity Sensor Instruction Manual
4. 2822 In-line Installation 5. 2823 In-Line Installation
Custome
r
supplied
pipe tee/
reducer
Sealant
1-1/4 turns past finger tight
Hole up
Mark hole position
Install behind
hole ONLY!
Customer
supplied
pipe tee/
reducer
3/4 in. NPT
Sealant
1 2
1-1/4 turns
past finger
tight
3/4 in. NPT
Customer supplied
coupling
Customer supplied
pipe
Sealant
Sealant
6. 2819/2820/2821 Submersible Installation 7. 2822 Submersible Installation
2
Standard
fitting kit
Optional
fitting kit
3/4 in.
NPT
1/2 in.
NPT
1
Customer
supplied pipe
Customer
supplied
coupling
Hand
tighten
only!
Standard
fitting kit
Optional
fitting kit
O-ring
Sealant
Sealant
Optional
submersion
fitting kit
#3-2820.390
1 2
1-1/4 turns
past finger
tight
3/4 in. NPT
Customer supplied
pipe
Customer supplied
coupling
Sealant
Sealant
8. 2823 Submersible Installation
Fill with
3 to 4 in.
of sealant
Attach 3/4 in. watertight pipe to the top of the sensor. Secure
the threaded connection to prevent any leakage. For additional
defense against possible accumulation of condensation at the
back seal area of the sensor, fill the lower 3-4 inches (75-100
mm) of conduit or extension pipe with a flexible sealant such as
silicone.

3
Signet 2820 Series Conductivity Sensor Instruction Manual
64 mm
2.5 in./
152 mm
6.0 in./
13 mm
0.5 in./
126 mm
5.0 in./
2820-X2
sensor tip
2821-X2
sensor tip
50 mm
2.0 in./
21 mm
0.8 in./
8 mm
0.3 in.
/
15 ft/4.6 m cable (std.)
6 in./
152 mm
4.2 in./
107 mm
2 in./
50 mm 0.8 in./
21 mm
3/4 in. NPT
15 ft/4.6 m cable (std.)
Reversible
fitting assy.
for submersion
mounting
0.5 in./
13 mm
2821-1
sensor tip
2820-1
sensor tip
0.3 in.
/
8 mm
152 mm
6.0 in./
13 mm
0.5 in./
50 mm
2.0 in./
126 mm
5.0 in./
2820-X1
sensor tip
2821-X1
sensor tip
50 mm
2.0 in./
21 mm
0.8 in./
8 mm
0.3 in./
15 ft/4.6 m cable (std.)
2819-1/2820-1/2821-1
• 2819-1 cell: 0.01
2819-1 range: 0.010 to 100 µS (10 kΩ to 100 MΩ)
• 2820-1 cell: 0.1
2820-1 range: 1 to 1000 µS
• 2821-1 cell: 1.0
2821-1 range: 10 to 10,000 µS
Temperature compensation: PT1000
Wetted materials:
• O-rings: EPR
• Insulator material: PTFE
• Electrodes: 316 stainless steel
Standard fitting: Polypropylene
• Max. pressure: 6.9 bar (100 psi)
• Max. temperature: 100°C (212°F)
Optional fitting: 316 stainless steel (1/2 in. NPT)
• Max. pressure: 13.8 bar (200 psi)
• Max. temperature: 120°C (248°F)
Quality Standard: CE
2819-S1/2820-S1/2821-S1/2819-T1/2820-T1/2821-T1
• 2819-X1 cell: 0.01
2819-X1 range: 0.010 to 100 µS (10 kΩ to 100 MΩ)
• 2820-X1 cell: 0.1
2820-X1 range: 1 to 1000 µS
• 2821-X1 cell: 1.0
2821-X1 range: 10 to 10,000 µS
Sanitary fitting size: 1 and 11
/2in.
Temperature compensation: PT1000
Wetted materials:
• O-rings: EPR
• Insulator material: PTFE
• Electrodes: 316 stainless steel or titanium
Sanitary fitting: 316 stainless steel or titanium
Max. pressure: 6.9 bar (100 psi)
Max. temperature: 120°C (248°F)
Quality Standard: CE
2819-S2/2820-S2/2821-S2/2819-T2/2820-T2/2821-T2
• 2819-X2 cell: 0.01
2819-X2 range: 0.010 to 100 µS (10 kΩ to 100 MΩ)
• 2820-X2 cell: 0.1
2820-X2 range: 1 to 1000 µS
• 2821-X2 cell: 1.0
2821-X2 range: 10 to 10,000 µS
Sanitary fitting size: 2 in.
Temperature compensation: PT1000
Wetted materials:
• O-rings: EPR
• Insulator material: PTFE
• Electrodes: 316 stainless steel or titanium
Sanitary fitting: 316 stainless steel or titanium
Max. pressure: 6.9 bar (100 psi)
Max. temperature: 120°C (248°F)
Quality Standard: CE
9. Specifications
Alternate wetted materials and overall lengths are available through special order. Cable length extensions to 100 ft. (30 m) are available
through special order. For resistivity measurements above 10 MΩ and/or below 20°C, maximum cable length is 25 ft. (7.6 m).
2819-1
2819-X2
2819-X1

A
Sensor tip
(side view)
Electrode
B
Insulator
C
Electrode
Cotton swab
Clean electrode
Clean metal body
8-32
Sensor tip
(end view)
D
Insulator
Sensor tip
(side view)
10. Maintenance
Any coatings on electrodes will cause readings to drift or show
poor response. Clean metallic surfaces with a mild detergent and
a non-abrasive brush or cotton swab.
2823-1 Sensor Tip Removal Procedure:
11. Accessories
Part No. Description
3-2820.392 Optional 1/2" 316 SS Fitting
3-2820.390 Optional 3/4" 316 SS Fitting
2822-1
Cell: 10.0
Range: 100 to 200,000 µS
Temperature compensation: PT1000
Wetted materials:
• O-rings: EPR
• Insulator material: CPVC
• Electrodes: 316 stainless steel
Standard fitting: 316 stainless steel
Max. pressure: 6.9 bar (100 psi)
Max. temperature: 95°C (203°F)
Quality Standard: CE
2823-1
Cell: 20.0
Range: 200 to 400,000 µS
Temperature compensation: PT1000
Wetted materials:
• O-rings: EPR
• Insulator material: PTFE
• Electrodes: 316 stainless steel
Fitting: 316 stainless steel
Max. pressure: 6.9 bar (100 psi)
Max. temperature: 150°C (302°F)
Quality Standard: CE
8.0 in./
203 mm
15 ft./4.6 m
cable (standard)
3/4 in. NPT
Reversible
fitting assy
for submersion
mounting
3.5 in./
89 mm
0.75 in. 19 mm
5.8 in./
147 mm
3.4 in./
86 mm
15 ft/4.6 m
cable (std.)
Optional 316 SS
submersion fitting
kit #3-2820.390
3/4 in. NPT
19 mm0.75 in.
3/4 in. NPT
George Fischer Signet, Inc. 3401 Aerojet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. [phone] • Fax [phone]
For Worldwide Sales and Service, visit our website: www.gfsignet.com • Or call (in the U.S.): [phone]
3-2820.090-1 Rev. K 11/04 English © George Fischer Signet, Inc. 2003 Printed in U.S.A. on recycled paper