Emerson Process Management 381 instruction manual Sensor Specifications, Materials of Construction

MODEL 381 pH/ORP

1.2 SENSOR SPECIFICATIONS

Materials of Construction:

Body, Cover and Flow Cell: Polyethersulfone (PES).

O-Rings: Viton2.

Measuring Electrode: Glass (and platinum for Model 381 ORP).

Liquid Junction: Kynar3/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.).

2Viton is a registered trademark of E.I. du Pont de Nemours & Co.

3 Kynar is a trademark of Elf Atochem North America, Inc.

SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

FIGURE 1-1. Dimensional Drawing

HANDRAIL MOUNTING ACCESSORY

HANDRAIL MOUNTING ACCESSORY

PN 1000856

PN 11275-00

FIGURE 1-2. Mounting Drawing

2