Emerson Bettis G Series User Manual

Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
December 2020
Bettis G01 through G10
Spring-Return Pneumatic Actuators with M18 Hydraulic Override

Emerson Bettis G Series Specifications

General

Category	Controller
Certifications	ATEX, IECEx, SIL3
Brand	Emerson
Series	G Series
Control Voltage	24 VDC, 220 VAC
Enclosure Rating	IP66, IP67
Communication Protocols	HART, Foundation Fieldbus
Ambient Temperature Range	-40°C to +85°C

Summary

Section 1: Introduction

1.3 General Safety Information

Crucial safety precautions for handling actuators.

1.10 Actuator Start-Up

Section 2: Actuator Disassembly

2.1 General Disassembly

2.2 Pneumatic Power Module Disassembly

Steps to take apart the pneumatic power module.

2.3 Drive Module Disassembly

Procedures for disassembling the drive module components.

2.4 G01 through G5 M18 Hydraulic Override Cylinder Disassembly

Steps to disassemble the hydraulic override cylinder for specific models.

2.5 G7 through G10 M18 Hydraulic Override Cylinder Disassembly

Steps to disassemble the hydraulic override cylinder for other models.

2.6 M18 Pump Disassembly

2.7 M18 Reservoir Disassembly

Section 3: Actuator Reassembly

3.1 General Reassembly

3.2 Drive Module Reassembly

Steps to reassemble the drive module.

3.3 Pneumatic Power Module Reassembly

Procedures for putting the pneumatic power module back together.

3.4 G2 and G3 Early Model Pneumatic Power Module Reassembly

3.5 G01 through G5 M18 Hydraulic Override Cylinder Reassembly

Reassembly instructions for specific hydraulic cylinder models.

3.6 G7 through G10 M18 Hydraulic Override Cylinder Reassembly

Reassembly instructions for other hydraulic cylinder models.

Actuator Testing

Leakage Test

Cycle the actuator

Apply MOP pressure

Apply leak testing solution

Re-perform leakage test

Section 5: Module Removal and Installation

5.1 M18 Override Cylinder Removal

Steps to remove the M18 override cylinder.

5.2 M18 Override Cylinder Installation

Procedures for installing the M18 override cylinder.

5.3 Spring Module Removal

How to safely remove the spring module.

5.4 Spring Module Installation

Steps for installing the spring module.

5.5 Pneumatic Power Module Removal

Process for removing the pneumatic power module.

5.6 Pneumatic Power Module Installation

Steps to install the pneumatic power module.

5.7 Power Swivel Removal

5.8 Power Swivel Module Installation

Section 7: Troubleshooting

7.1 Fault Insertion

Table for diagnosing and resolving actuator faults.

7.2 Operational Test