ENMET PID User Manual

ENMET Corporation

PO Box 979 Ann Arbor, MI 48106-0979

Manual Part Number 80002-050

MCN-383, 11/05/07

PID-G

UARD

Compressed Air Line

Hydrocarbon Monitor

Manual

Table of Contents

1.0 INTRODUCTION........................................................................................................................................................1

1.1 U

NPACK

....................................................................................................................................................................................1

1.2 C

HECK ORDER

1.3 S

ERIAL NUMBERS

2.0 COMPONENTS OF THE PID-GUARD......................................................................................................................2

2.1 PID-G

2.2 PID-G

2.3 C

UARD ELEMENTS UARD OPERATIONAL FEATURES

IRCUIT BOARD FEATURES

3.0 INSTALLATION.........................................................................................................................................................5

3.1 M

OUNTING

3.2 W

IRING THE

3.2.1 Air Supply..........................................................................................................................................................................6

3.2.2 Power Supply.....................................................................................................................................................................6

3.2.3 Relay Contacts...................................................................................................................................................................7

4.0 OPERATION............................................................................................................................................................... 8

4.1 S

TART UP

4.1.1 Typical Start Up.................................................................................................................................................................8

4.2 N

ORMAL DISPLAY MODE

4.2.1 Alarm Conditions PID-G

4.3 H

YDROCARBON SENSOR RESPONSE

5.0 MAINTENANCE.......................................................................................................................................................10

5.1 M

AINTENANCE MENUS

5.2 PID-G

UARD MAINTENANCE ADJUSTMENTS

5.2.1 Advance/Exit Maintenance Menu .....................................................................................................................................11

5.2.2 Zero Adjust......................................................................................................................................................................11

5.2.3 Gas Span Calibration.......................................................................................................................................................12

5.2.4 Alarm Set Points..............................................................................................................................................................14

5.2.5 Span Set...........................................................................................................................................................................14

5.4 S

ENSOR REPLACEMENT

6.0 REPLACEMENT PARTS......................................................................................................................................... 17

7.0 TECHNICAL DATA AND SPECIFICATIONS .......................................................................................................17

8.0 WARRANTY .............................................................................................................................................................18

APPENDIX A: GAS IONIZATION POTENTIALS....................................................................................................... 19

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PID-G

UARD

............................................................................................................................................................5

PID-G

UARD

..........................................................................................................................................................6

PID-G

UARD

..............................................................................................................................................................8

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UARD

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ABLE

1 : R

ELAY FAILSAFE SETTINGS

ABLE

2: F

ACTORY ALARM SET POINTS

ABLE

IGURE

IGURE 1A

IGURE

3: PID-G

1: E 2: PID-G

3: M 4: P 5: R 6: C 7: PID-G 8: PID-G

UARD MAINTENANCE MENUS SEQUENCE

XTERNAL

: O

PTIONAL REGULATOR AND SAMPLE AIR HOSE

UARD CIRCUIT BOARD FEATURES

OUNTING OWER TERMINAL CONNECTIONS ELAY TERMINAL CONNECTIONS

ALIBRATION ADAPTER

UARD MAINTENANCE MENU FLOW CHART UARD SENSOR REPLACEMENT

Reference Information:

OTE

: [important information about use of instrument]

ARNING

AUTION

: [affects equipment – if not followed may cause damage to instrument, sensor etc…]

[affects personnel safety – if not followed may cause bodily injury or death.]

Earth Ground

PID-G

UARD FEATURES

PID-G

UARD

List of Tables

................................................................................................................................. 7

.............................................................................................................................. 9

.....................................................................................................10

List of Illustrations

...................................................................................................................... 3

.................................................................................................. 3

............................................................................................................... 4

...................................................................................................................................... 5

PID-G

UARD

...................................................................................................... 6

PID-G

UARD

....................................................................................................... 7

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PID-G

UARD

ENMET Corporation

1.0 Introduction

The PID-G air systems utilizing a photoionization sensor. Hydrocarbons (HC) are limited to gases with an ionization potential of 10.6 eV or less. See Appendix A for a list of gases and IPs. The PID-G Groups B, C, D classified area and C

Features of the PID-G

OTE

: All specifications stated in this manual may change without notice.

1.1 Unpack

Unpack the PID-G service personnel and the commercial carrier involved immediately.

Regarding Damaged Shipments

UARD

is a compressed air monitoring instrument that measures and detects Hydrocarbons in industrial compressed

UARD

AN NOT

be installed in a hazardous location.

 continuous monitoring of the sample air  continuous LCD display of gas and vapor concentrations  menu driven operational and maintenance controls  menu driven calibration procedure  audio and visual alarms indicate unsafe conditions  alarm relay contacts available on terminals  a fault relay and visual fault alarm  low air flow fault indication and display  alarm acknowledgement capability including audio defeat  mA outputs for target gas

UARD

and examine it for shipping damage. If such damage is observed, notify both ENMET customer

UARD

is NOT in an enclosure rated for use in a Class I, Div 1,

OTE

: It is your responsibility to follow these instructions. If they are not followed, the carrier will not honor

any claims for damage.



This shipment was carefully inspected, verified and properly packaged at our company and delivered to the carrier in

good condition.



When it was picked up by the carrier at ENMET, it legally became your company’s property.



If your shipment arrives damaged:

• Keep the items, packing material, and carton “As Is.” Within 5 days of receipt, notify the carrier’s local office and

request immediate inspection of the carton and the contents.

• After the inspection and after you have received written acknowledgment of the damage from the carrier, contact

ENMET Customer Service for return authorization and further instructions. Have your Purchase Order and Sales Order

numbers available.



ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage,

usually $100.00. Repair or replacement charges above that value are your company’s responsibility.



The shipping company may offer optional insurance coverage. ENMET only insures shipments with the shipping

company when asked to do so in writing by our customer. If you need your shipments insured, please forward a written

request to ENMET Customer Service.

Regarding Shortages

If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of receipt at the following address:

ENMET Corporation

680 Fairfield Court

Ann Arbor, MI 48108

734-761-1270 734-761-3220 Fax

1.2 Check Order

Check, the contents of the shipment against the purchase order. Verify that the PID-G G

UARD

is labeled with its target gas. If there are accessories on the order, ascertain that they are present. Check the contents of

calibration kits. Notify ENMET customer service personnel of any discrepancy immediately.

UARD

is received as ordered. Each PID-

1.3 Serial Numbers

Each PID-G

UARD

is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.

PID-G

UARD

ENMET Corporation

2.0 Components of the PID-G

2.1 PID-G

UARD

elements

UARD

See Figure 1 for location of elements:

Feature Description Enclosure A polycarbonate box, approximately 7 x 5 x 3, with a detachable front cover.

4 holes for mounting the enclosure to a vertical surface. Located at the corners of the bottom of the enclosure, directly beneath the 4 front cover retaining screws. See Figure 3

Input Port The entrance for the air sample and calibration gas. The quick release fitting mates with one

on the optional Sample air hose and the calibration adapter.

Front Cover

Detachable front cover of PID-G

UARD

with Display Panel. See Section 2.2 and Figure 1

There are 4 Screws that hold the front cover in place.

Sample Air Hose

(Optional)

Regulator

(Optional)

A five foot long hose to conduct a sample of the air from the source to the instrument. The hose has a Female quick release fitting and regulator. See Figure 1a

To connect to the compressed air line. Sample pressure to the PID-G 55

PSI

. See Figure 1a

UARD

should be set to

Output Port Sampled air out: Luer connection provided to connect to tubing

2.2 PID-G

UARD

Operational Features

The Display Panel is attached by a cable and is released by unscrewing the 4 screws located in the corners. After releasing the panel, it is swung upward, exposing the interior of the enclosure. See Figure 1 for location of features.

Feature Description Display A single line, 8 character LCD with backlight. Indicates the level of gas detected by sensor.

The numerical value of gas concentration and other information is displayed.

Audio Alarm(Horn) Audio alarm (105 dB at 30cm/12in). The audio alarm is on when the unit is in alarm. Visual Indicators and

Alarms

LED indicators:

Power / Fault Indicator LED, Green / Red Alarm (3) Indicator LED, Red

Membrane Switches 2 Pushbutton Switches on front panel control the instrument maintenance functions. The

pushbutton switch locations are indicated by:

ENU

↓: Advances the instrument display through operation information and maintenance

menus

ELECT

: Disables audio alarm temporally and

Selects the maintenance menu operations such as, Zero, Span, Exit menu or sets proper calibration values for Zero or Span

See Section 4.0 and 5.0 for operational and maintenance flow charts.

Flowmeter A flow indicator located at the output of the sample flow stream, which indicates

quantitatively the flow of sample air or calibration gas through the instrument.

Three alarm points are preprogrammed into the PID-G

UARD

. At each alarm point, an LED on the front panel is activated. These internal alarm settings are independent of the 4-20mA output alarm values that can be set at a controller. An optional relay board is available that will activate 0.5 Amp relay contacts at each alarm point, plus a fault relay.

PID-G

Regulator

¼“ NPT

Input Port

Strain Relief

Power/Fault

UARD

ENMET Corporation

Visual Indicator

Flowmeter

Select

Figure 1: External PID-G

UARD

Visual Indicators: Alarm1, Alarm2, Alarm3

Output Port

Pushbutton Switches

Audio Alarm

Front Cover Retaining Screws

4 places

Features

Figure 1a: Optional R

Female Quick Release Fitting to Inlet Port

EGULATOR AND SAMPLE AIR HOSE

PID-G

PCB/Sensor Manifold

4-20mA Output

UARD

ENMET Corporation

2.3 Circuit Board Features

Feature Description Relay Terminals This group of terminals is located on the Circuit Board.

For the contacts for each of three alarm relays, and for the contacts of a fault relay. See Section 3.2.2

Output Terminals For the 4-20 mA output. PCB/Sensor Manifold The PCB/Sensor manifold. The photoionization sensor located under this housing.

Terminal J12

External Power

Figure 2: PID-G

UARD

Circuit Board Features

Relay Terminals J14, J15, J16, J17

Relays K1, K2, K3, K4

PID-G

Right Side View

UARD

3.0 Installation

The PID-G being used. The PID-G

UARD

should be located near the pipe or tank containing the air to be monitored, and upstream from where the air is

ENMET Corporation

UARD

must be installed such that it samples the compressed air before it reaches the users.

3.1 Mounting PID-G

Mount the PID-G

UARD

instrument on an appropriate vertical surface, leaving room for lid to be opened, using the mounting

holes provided. Avoid areas with excessive vibration or temperature extremes. The holes in the bottom of the enclosure are

0.18 inch in diameter and form a 6.44″ x 4.47″ rectangle. See Figure 3 It is recommended to use #8 drywall anchors and screws for mounting the PID-G

UARD

to a drywall/sheetrock surface.

Cover Inside View

Opened Upward Attached to Base

Dimensions are in inches.

Figure 3: Mounting PID-G

UARD

PID-G

UARD

3.2 Wiring the PID-G

UARD

ENMET Corporation

The electrical installation should conform to appropriate electrical codes, such as the National Electrical Code in the United States.

ARNING

The compliance of the installation to appropriate codes is not ENMET’s responsibility.

The PID-G

UARD

should be powered through circuit breakers provided for this purpose.

3.2.1 Air Supply

Tap the pipe or tank containing the air and use appropriate fittings to connect the sample input hose. The instrument is designed to operate from an air supply pressure 55

PSIG

. The sample input hose length should be as short as possible.

3.2.2 Power Supply

The input power can vary from 100 to 240 VAC, 50/60 Hz. Power should be connected to the Power Input Terminal TB1 and the Ground screw. See Figure 4 for location.

ARNING

Continuous gas detection and alarm systems (110VAC/220VAC / 24VDC/12VDC powered) become inoperative

upon loss of primary power. Contact factory for specifications and pricing of backup battery systems.

Upon supplying air and power to the PID-G

UARD

 The green power on LED is lit.  The display backlight is lit, and instrument will step through a start-up sequence: unit serial number and software revision

may be shown on the display.

The instrument may go into alarm briefly, but the sensors stabilize quickly. If the instrument persists in alarm, acknowledge the alarm by pressing the S

ELECT

button. If alarm persists longer than 30 minutes, call ENMET customer service personnel.

For DC wiring 24Vdc may be wired to J12, (J12-1)position 1 + with ground connected to (J12-2)position 2.

AC Power Supply Terminal: TB1

Label on PCB Function

110V

Ground

TB1 ACN Neutral TB1 ACL Line

AC GND

Cover Inside View

Opened Upward Attached to Base

Screw

220V

TB1 ACN Neutral

Optional TB1 ACL Line

Ground

AC GND

Screw

DC Power Supply Terminal: J12

Position Function

1 + 24 V 2 GND 3 4 - 20 mA out

power

Figure 4: Power Terminal Connections PID-G

UARD

+ 18 hidden pages

ENMET PID User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual