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MODEL 381 pH/ORP SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
1.2 SENSOR SPECIFICATIONS
Materials of Construction:
Body, Cover and Flow Cell: Polyethersulfone (PES).
O-Rings: Viton
2.
Measuring Electrode: Glass (and platinum for
Model 381 ORP).
Liquid Junction: Kynar
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/wood (Code 20) or
Kynar/ceramic (Code 21).
Process Connections: Submersion: 3/4 inch MNPT.
Insertion: 2 inch MNPT.
Flow Through:3/4 inch MNPT.
Dimensions: (see Figure 1-1).
Measuring Range: pH 0-14
ORP –1500mV to +1500mV
Temperature Compensation: (Model 381 pH only,
not required for Model 381 ORP).
Automatic, 0 to 100°C (32 to 212°F).
Pressure Rating: 790 kPa abs at 100°C
(100 psig at 212°F)
Cable: Four-conductor, 22 GA, each (0.64 mm dia.),
with common shield.
Weight/Shipping Weight: 1.0 kg/1.7 kg (2.2 lb./ 3.7 lb.).
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Viton is a registered trademark of E.I. du Pont de Nemours & Co.
3
Kynar is a trademark of Elf Atochem North America, Inc.
HANDRAIL MOUNTING ACCESSORY HANDRAIL MOUNTING ACCESSORY
FIGURE 1-2. Mounting Drawing
FIGURE 1-1. Dimensional Drawing
PN 1000856 PN 11275-00