Yokogawa GD40 Gas Density Detector - Manual (Page 6)

Toc-1
IM 11T3E1-01E
<CONTENTS>
Model GD402
Gas Density Meter
CONTENTS
IM 11T3E1-01E 7th Edition
Introduction ..............................................................................................................i
u After-sales Warranty ...................................................................................................... iv
1. SPECIFICATIONS ..................................................................................... 1-1
1.1 Specifications ....................................................................................................1-1
1.1.1
General Specifications .......................................................................1-1
1.1.2 GD40G, T, V, R Detector ....................................................................1-5
1.1.3 GD402G, T, V, R Converter................................................................1-5
1.2 Model and Suffix Codes ...................................................................................1-7
1.2.1
Gas Density Converter ......................................................................1-7
1.2.2 Gas Density Detector .........................................................................1-7
1.2.3 Hardware for Connection with External Cables
(For Explosion-proof use) ..................................................................1-8
1.2.4 Two-core, Double-Shielded Cable .....................................................1-8
1.2.5 Brain Terminal (Optional) ...................................................................1-9
1.2.6 Pressure transmitter (Optional)..........................................................1-9
1.3 External Views and Dimension ......................................................................1-10
1.3.1
GD402G Converter (General purpose) ...........................................1-10
1.3.2 Pipe- and Wall-Mounting Hardware (Optional) ................................ 1-11
1.3.3. GD402T, V, R Converter (Explosion-proof) .....................................1-12
1.3.4 GD40 Detector .................................................................................1-13
1.3.5 Detector Unit (Intrinsically Safe, Explosion-proof) ...........................1-14
1.3.6 Surge protector: K9215LP ...............................................................1-14
2. INSTALLATION, WIRING AND PIPING .................................................... 2-1
2.1 Installing the Detector ......................................................................................2-1
2.1.1
Selecting the Location ........................................................................2-1
2.1.2 GD40T (FM Explosion-proof and Intrinsically Safe Approval) ...........2-2
2.1.3 GD40V (CSA Explosion-proof and Intrinsically Safe Approval) ........2-3
2.1.4 Mounting the Detector........................................................................2-4
2.2 Installing the Converter ....................................................................................2-5
2.2.1
Selecting the Location ........................................................................2-5
2.2.2 GD402T (FM Explosion-proof Approval) ...........................................2-6
2.2.3 GD402V (CSA Explosion-proof Approval) .........................................2-7
2.2.4 Mounting the Converter .....................................................................2-8