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90-0322-AAA

OHG Sub-Unit Installation Instructions

20th Nov 2012

Proprietary and Confidential

Page 1 of 14

90-0322-AAA OHG Sub-Unit Installation Instructions

Issue/Version

Date

Author

Details

AAA

20/11/2012

Graham Newell

Original

Overview

This document describes how to install additional OHG sub-units into an existing GEN-SYS system.

Table of contents

Section 1 -

Note on safety .......................................................................................................................... 2

Section 2 -

Materials and tools ................................................................................................................... 2

Section 3 -

Overview of procedure ............................................................................................................. 3

Section 4 -

Disconnect power + air from the GEN-SYS rack ..................................................................... 4

Section 5 -

Removing an OVG-4 sub-unit (optional step) .......................................................................... 5

Section 6 -

Installing a Quick Connect in GEN-SYS .................................................................................. 8

Section 7 -

Preparing the RS-485 cable .................................................................................................... 9

Section 8 -

Installing the OHG ................................................................................................................. 10

Section 9 -

Fit the water bottle bracket assembly .................................................................................... 12

Section 10 -

Connecting the water bottle ................................................................................................... 13

Section 11 -

Connecting the hygrometer .................................................................................................... 14

Summary of Contents for 90-0322 Series

Page 1: ...ub units into an existing GEN SYS system Table of contents Section 1 Note on safety 2 Section 2 Materials and tools 2 Section 3 Overview of procedure 3 Section 4 Disconnect power air from the GEN SYS rack 4 Section 5 Removing an OVG 4 sub unit optional step 5 Section 6 Installing a Quick Connect in GEN SYS 8 Section 7 Preparing the RS 485 cable 9 Section 8 Installing the OHG 10 Section 9 Fit the w...

Page 2: ...removing them from the GEN SYS rack Section 2 Materials and tools If a customer purchases an OHG they are supplied with the following items 00 0006 1 Owlstone Humidity Generator OHG 50 0081 1 Quick connect body Swagelok 1 8 01 0228 1 Bracket assembly for holding bottle 51 0020 6 M3 x 6mm screws to connect bottle bracket to GEN SYS rack 01 0160 1 Bottle cap and 2micron diffuser assembly 50 0158 1 B...

Page 3: ... the external water bottle the OHG must be mounted in the right hand position as shown below If you need to remove an OVG already mounted in this position see section 5 Figure 1 OHG position Fit the Quick Connect supplied with the OHG see section 6 Prepare the RS 485 cable see section 7 Install the OHG see section 8 Fit the water bottle holder see section 9 Connecting the water bottle section 10 C...

Page 4: ...st be vented before following this procedure 1 Vent the gas supply line that provides pressure to the GEN SYS system Do not proceed unless pressure has been vented from this line 2 Using a 9 16 spanner disconnect the inlet gas line from the rear of the GEN SYS system 3 If in use using a 9 16 spanner disconnect the exhaust line from the rear of the GEN SYS system 4 The DC power connection is unscre...

Page 5: ... responsible for considering all chemical safety implications COSHH before following this procedure Always disconnect DC power exhaust and gas supply from the rear of the GEN SYS rack before following this procedure Always consider chemical safety before following this procedure 1 Switch off power to the unit Figure 3 OVG 4 front panel 2 Allow the OVG 4 to cool down to room temperature 3 Unscrew a...

Page 6: ...can then be lifted off Figure 5 removing the roof panel 5 Disconnect DC power and gas supply Both DC power and gas supply fittings are removed by hand from the rear of the OVG 4 The DC power connector is removed by pulling gently The gas supply QC is removed by sliding the tapered end of the quick connect towards the rear of the OVG 4 Figure 6 Disconnect DC power cable Figure 7 Disconnect gas line...

Page 7: ...age 7 of 14 6 Disconnect the exhaust line Using a 7 16 spanner unscrew the 1 8 Swagelok fitting on the rear of the OVG 4 Figure 8 Disconnecting the exhaust 7 Carefully remove the OVG 4 from the rack Use both hands to carefully slide the OVG 4 out of the GEN SYS rack Figure 9 Removing an OVG 4 from the GEN SYS rack ...

Page 8: ...ther risk implications If the user requires the GEN SYS system to be leak tight it must be tested after assembly Please contact Owlstone for technical support regarding leak testing 1 Prepare materials A Swagelok Quick Connect is supplied with your OHG Owlstone p n 50 0081 Two 7 16 and a 5 8 spanner are required for this procedure Figure 10 Quick connect 2 Remove Swagelok cap fit Quick Connect Rem...

Page 9: ... 485 cable If the user needs RS 485 communication capability then cabling needs to be prepared as shown below Firstly un wrap un strap the spare cables Next remove the bridge or plug to leave the 15 way connector ready to connect to the OHG Figure 13 RS 485 cables as supplied Figure 14 Remove bridge or plug Figure 15 Cable ready to connect to the OHG ...

Page 10: ...Installing the OHG Installing the OVG 4 sub unit follows the procedure described in section 4 in reverse 1 Mount the OVG 4 sub unit in the GEN SYS rack Figure 16 Mounting an OVG 4 sub unit 2 Connect quick connect to the rear of the OVG 4 as shown below Pushing the valve firmly until a click is heard Figure 17 Connect Quick Connect Valve ...

Page 11: ...e rear of the OVG 4 as shown below Figure 18 Plug power cable into socket 4 Connect the RS485 cable Connect the RS 485 connector to the rear of the OHG as shown below tighten the two screws Figure 19 Fitting the RS 485 connector 5 Replace the roof panel Replace the roof panel and tighten the 4x screws See section 5 4 6 Re connect DC power Air Exhaust to the rear of the GEN SYS system Refer to Sect...

Page 12: ...e right hand side of the rack need to be removed before the bottle bracket assembly can be attached to the rack They can easily be removed by hand Figure 20 rivets Figure 21 Screws required to fasten the bracket Using a screwdriver and the screws provided fasten the bracket Figure 22 fixing the bracket The bracket is now secured to the rack Figure 23 the bracket is attached Remove the 4x rivets ...

Page 13: ...ve connected the two pipe assemblies to the top of the bottle you simple connect the other end of each pipe assembly to the OHG using a 7 16 spanner Figure 24 attached the bottle Figure 25 attaching the pipes Connect tubing from the connector on the top of the bottle marked DRY to the outlet port on the OHG marked Dry Air Outlet Connect tubing from the connector on the top of the bottle marked WET...

Page 14: ...the Wet Air Outlet as described below Depending on user requirements you may choose to fit the hygrometer elsewhere in your pneumatic circuit Figure 27 attaching the hygrometer Figure 28 attaching the connector Figure 29 finished 1 8 Swagelok tube fittings should be tightened finger tight a further half a turn using a 7 16 spanner Locate the sensor connector into the Humidity Sensor socket at the ...

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