Emerson 398VP User Manual

The  Model 398 Sensor, housed in a titanium tube and made with a Tefzel reference
junction, can be used with a 1 inch MNPT process connector (purchased separately).
The sensor is available with a hemi bulb glass pH electrode or a platinum and glass
ORP electrode and with Pt100 or 3K temperature compensation. The 398 is provided
with a standard 15 ft cable. A preamplifier must be used if the sensor is more than 15 ft
from the analyzer/transmitter. Junction box kits with preamplifiers must be ordered sep-
arately. Process connector must also be ordered separately.

CODE

MEASURING ELECTRODE TYPE (Required Selection)

10

GPHT hemi glass, General Purpose High Temperature (0-14 pH) 

12

ORP

13

Flat Bulb, GPLR

CODE

ANALYZER/TC COMPATIBILITY (Required Selection)

50

For Models 1181 (3K TC) [no T.C. if ordered with option -12 (ORP)]

54

For Models 54/e, 1054A/B, 1055, 2700, 81, 2081, 3081, 4081, SCL-P, and Solu Cube (Pt-100 RTD)

CODE

O-RING MATERIAL (Required Selection)

30

EPDM

31

Viton 

32

Kalrez (recommended for applications with Chlorine Dioxide)

CODE

OPTIONAL SELECTIONS (see drawings on page 4)

62

No BNC (Not Valid w/Option 50) for wiring directly to 54/e, 1055, 81, 3081, and 4081 Transmitter/Analyzers

The Model 398VP insertion/submersion sensor is the same as Model 398, except
the cable is replaced with a Variopol connector. The watertight Variopol sensor-to-
cable connector uses the mating connector cable (ordered separately).  

CODE

ANALYZER/TC COMPATIBILITY (Required Selection)

50

For Models 1181 (3K TC) [no T.C. if ordered with option -12 (ORP)]

54

For Models 54/e, 1054A/B, 1055, 2700, 81, 2081, 3081, 4081, SCL-P, and Solu Cube (Pt-100 RTD)

CODE

MEASURING ELECTRODE TYPE (Required Selection)

10

GPHT hemi glass, General Purpose High Temperature (0-14 pH) 

12

ORP

13

Flat

CODE

O-RING MATERIAL (Required Selection)

30

EPDM

31

Viton 

32

Kalrez (recommended for applications with Chlorine Dioxide)

5