Owner's manual

Signet 2839 to 2842 Conductivity Sensors
3-2840.090 Rev H 04/12 English
English
SAFETY INSTRUCTIONS
1. Depressurize and vent system prior to installation or removal.
2. Conrmchemicalcompatibilitybeforeuse.
3. Donotexceedmaximumtemperature/pressurespecications.
4. Wearsafetygogglesorfaceshieldduringinstallation/service.
5. Donotalterproductconstruction.
6. Whenusingchemicalsorsolventscareshouldbetakenand
 appropriateeye,face,hand,body,and/orrespiratoryprotectionshouldbeused.
Table of Contents
1. Specications
2. Cellconstantselection
3. Installation
4. Wiring
5. Maintenance
6. Orderinginformation
1. Specications
Dimensions
Instrument Compatibility:
• 2850, 5800CR, 5900, 8850-X, 8860, 9900
Standards and Approvals:
• ManufacturedunderISO9001andISO14001
Shipping Weight:
• 2839:   0.34kg(0.74lb)
• 2840,2841,2842: 0.30kg(0.66lb)
Process connection:
• -1 versions:
3
/
4
in. NPT
• -1Dversions:  ISO7/1-R
3
/
4
Cable:
• 4.6m(15ft)std.,3conductorwithshield,22AWG,
maxlength30m(100ft).Forresistivitymeasurementsabove
10MΩorbelow20°C,maximumcablelengthis7.6m(25ft).
Performance:
Accuracy:  ±2%ofcellvalue
Temp. measurement: PT1000
Temp.responsetime(τ):
2839: 5 s 2840: 10 s
2841: 20 s 2842: 30 s
Operating temperature/pressure:
(withthreadengagementperANSIB1.20.1)
-1X versions:
• -10to100ºC@6.9bar(14to212ºF@100psi)
• -10to131ºC@2.76bar(14to268ºF@40psi)
Storagetemperature: -20to131ºC(-4to268ºF)
Wetted materials:
Threadedtting: PEEK
Insulator: PEEK
InsulatorO-ring(2841,2842): FPM
Electrodecontacts: 316Lstainlesssteel
59.3 mm/
2.33 in.
73.7 mm/
2.90 in.
140.7 mm/
5.54 in.
15.9 mm/ 0.625 in.
21.5 mm/
0.85 in.
35.8 mm/
1.41 in.
102.7 mm/
4.05 in.
15.9 mm/
0.625 in.
15.9 mm/
0.625 in.
26.8 mm/
1.13 in.
109 mm/
4.29 in.
41.9 mm/
1.65 in.
2839: 0.01 cm
-1
2840: 0.1 cm
-1
2841: 1.0 cm
-1
2842: 10.0 cm
-1
General
50
3
PSIBAR
60
212
100 140
284
20
140
-20
-4
0
32 68
25
2
75
5
100
7
°F
°C
China RoHS (Gotowww.gfsignet.comfordetails)
*3-2840.090*