ENMET EX-5100 User Manual

Download

Page 1

ENMET Corporation

PO Box 979 Ann Arbor, MI 48106-0979

EX-5100 C

Manual

OMBUSTIBLE

Manual part number 80003-096 MCN-416, 04/03/09

Page 2

Table of Contents

1.0 I

NTRODUCTION

1.1 Unpack............................................................................................................................................... 1

1.2 Check Order ...................................................................................................................................... 1

1.3 Serial Numbers .................................................................................................................................. 1

2.0 F

EATURES OF THE

3.0 I

NSTALLATION OF THE

3.1 Mounting the EX-5100 Enclosure ..................................................................................................... 3

3.2 Wiring the EX-5100 to a Control Unit .............................................................................................. 4

4.0 O

PERATION OF THE

4.1 Start up .............................................................................................................................................. 6

4.1.1 Typical Start Up ...................................................................................................................... 6

4.1.2 Alternate Start Up ................................................................................................................... 6

4.2 Normal Display Mode ....................................................................................................................... 7

4.2.1 Alarm Conditions EX-5100 .................................................................................................... 7

5.0 M

AINTENANCE OF THE

5.1 Maintenance Menu ............................................................................................................................ 8

5.2 Calibration of the EX-5100 ............................................................................................................... 9

5.2.1 Zero Adjust ............................................................................................................................ 11

5.2.2 Gas Span ............................................................................................................................... 11

5.2.3 Exit Maintenance Menu ......................................................................................................... 11

5.3 Heater Voltage Settings ................................................................................................................... 13

5.4 Sensor Replacement ........................................................................................................................ 13

6.0 R

EPLACEMENT PART NUMBERS

7.0 WARRANTY ............................................................................................................................ 14

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

EX-5100 ......................................................................................................... 2

EX-5100 .................................................................................................... 3

EX-5100 ....................................................................................................... 6

EX-5100 ................................................................................................... 8

.................................................................................................. 14

IGURE 1:

IGURE 2:

IGURE 3: TERMINAL POSITIONS

ABLE 1:

IGURE 4: CALIBRATION ADAPTER

ABLE 2:

ABLE 3: SELECTED

ABLE 4: CALIBRATION TIME

IGURE 5:

EX-5100 EX-5100 S

Reference information:

OTE

: [important information about use of instrument – if not followed may have to redo some steps.]

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.]

EX-5100 F EX-5100 M

MAINTENANCE MENUS SEQUENCE

EX-5100 M

List of Figures and Tables

EATURES

OUNTING DIMENSIONS

TANDARD SPAN GAS

EX-5100 NON-S

AINTENANCE MENU FLOW CHART

.......................................................................................................... 2

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

EX-5100 S

ENSOR/TRANSMITTER

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

TANDARD GAS

............................................................................................................ 11

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

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

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

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

.................................................................... 12

Page 3

EX-5100 C

OMBUSTIBLE

ENMET Corporation

1.0 Introduction

The ENMET EX-5100 sensor/transmitters (S/T) is, 3-wire, 24VDC 4-20 ma S/T for the detection of combustible gas. The EX-5100 is meant to be used in conjunction with an appropriate power supply and controller. The ENMET EX-5100 sensor/transmitter is in an enclosure rated for use in a Class I, Div. 1, Groups B, C, D, classified area.

OTE

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

1.1 Unpack

Unpack the EX-5100 and examine it for shipping damage. If such damage is observed, notify both ENMET customer service personnel and the commercial carrier involved immediately.

Regarding Damaged Shipments

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 EX-5100 is received as ordered. [Each EX5100 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.

1.3 Serial Numbers

Each EX-5100 is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.

Page 4

ENMET Corporation EX-5100 C

Power /Fault

Sensor

2.0 Features of the EX-5100

See Figure 1 for location of features:

Feature Description Display Gain Potentiometer

(POT)

Visual Alarms

Magnetic Switches

Sensor

LCD: Indicates the level of gas detected by sensor POT 1: Display contrast adjustment

POT 2: Combustible Sensor Zero adjustment, See Sections 3.2 and 5.4 POT 3: Combustible Heater Do not adjust unless advised by ENMET POT 4: Used with EX-5150-MOS (High Voltage) Do not adjust unless advised by ENMET

LED indicators:

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

ENU

: Advances the instrument display through menus (Zero, Span, Exit)

ELECT

: Selects the Zero, Span, Exit menu or sets proper calibration values for Zero or Span

For sensing LEL levels of gas, see Table 2 and 3 for sensor types

OMBUSTIBLE

Magnetic switches control the instrument maintenance functions. The switch locations are indicated by M

ENU

and S

magnetic field pulse is applied by momentarily putting the end of the magnet in proximity to the switch and then removing it. Since the magnetic field penetrates the window, the enclosure cover is not removed in order to perform calibration.

Three alarm points are preprogrammed into the EX-5100 sensor/transmitters. 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.

3 Alarm Indicators

POT 1

Indicator

Display

POT 3

Menu Select

POT 4

ENU

Magnetic switch

POT 2

Note: POT 1, 3 & 4 shown

for reference only.

Do Not Adjust

Note: See Section 6.0

Replacement Parts for sensor identification

ELECT

Magnetic switch

ELECT

. A

Internal PCB View External View

Figure 1: EX-5100 Features

Page 5

EX-5100 C

Optional

Mounting Holes

Sensor/T

ransmitter

Sensor/Transmitter

OMBUSTIBLE

ENMET Corporation

3.0 Installation of the EX-5100

AUTION

3.1 Mounting the EX-5100 Enclosure

AUTION

Area must be declassified during installation.

The ENMET EX-5100 gas sensor/transmitter (S/T) is a 3-wire, 24 VDC 4-20 mA S/T for the detection of combustible gas. The S/T is meant to be used in conjunction with an appropriate power supply and controller. The ENMET EX-5100 sensor/transmitter is in an enclosure rated for use in a Class I, Div. 1, Groups B, C, D, classified area. Appropriate wiring, conduit and fittings are required for proper installation in a explosion proof rated environment.

: Since the sensor/transmitter detects gas only at the sensor location, pay attention to the possible sources of gas, the

density of the gas, locations where the gas may be confined and locations where the gas may damage or injure property or personnel, when choosing locations of sensor/transmitters.

Take into consideration environmental factors when deciding on S/T location. Avoid locations where the S/T may be damaged by liquid immersion, excessive heat or other know hazards. Also, take precautions to insure condensation inside of the conduit does not enter the S/T.

Mount the enclosure, using the two mounting holes provided see Figure 2. Pay particular attention to the source and density of the gas being detected when choosing the location. Mount the S/T near the ceiling for lighter than air gases /vapors and near the floor for heavier then air gas/vapors. Contact ENMET if you have questions regarding your application.

: Before connecting S/T to controller remove the power source to controller. Failure to do so may cause damage to

sensitive components.

Conduit fitting Typically: ½″ NPT female

Sensor

½″ NPT female

Select

Enclosure Top View

Enclosure Side View

IDE VIEW

Sensor

Figure 2: EX-5100 Mounting Dimensions

2 places, 0.313″

OP VIEW

Page 6

ENMET Corporation EX-5100 C

Wires to

To J8

Wires t

Sensor 03070

001

Sensor 03070

003

Relay Output Board

Optional Relay Output Board

OMBUSTIBLE

3.2 Wiring the EX-5100 to a Control Unit

AUTION

Contact ENMET for Modbus

Address information

Area must be declassified during installation.

Run conduit and 16

AWG

(1.5

) wires to the enclosure from the power supply and controller. If the EX-5100 is installed in a

hazardous location as defined by the National Electrical Code, then ALL wiring must be in accordance with the National code and any local governing codes.

Open the enclosure, and remove the 2 screws that retain the display overlay to the circuit board. Use caution when removing the over lay. Do not damage the magnetic switches. Remove the two overlay standoffs and remove the circuit board, exposing the terminal strips on the bottom of the circuit board.

Do not disconnect the circuit board wiring. Connect the wires from the controller (power supply) to the supplied J4 plug then attach to J4 terminal. Connect the wires from the sensor to the supplied J8 plug then attach to the J8 terminal. See Figure 3 for locations

J4 P

LUG – TERMINAL TO CONTROLLER WIRING

Position Function

1 +

24 V

power 2 GND 3 4 - 20 mA out

4* RS-485 D+ 5* RS-485 D–

Controller

To J4

Plug J4

 It is recommended that the auxiliary

alarm is powered separately.

 Use 14 – 20

AWG

(2.5 – 0.5

) wire.

 When on power the relays are energized.  Relays are rated at 0.5 Amp continuous.

5 4 3 2 1

1 2 3

Sensor

Circuit Board Bottom View

J8 P

LUG – TERMINAL SENSOR WIRING

Position Function Catalytic Sensor

1 + Heater Red

2 Signal Yellow

3 – GND Blue

Position Function Catalytic Sensor

1 + Heater Red

2 Signal White

3 – GND Black

Plug J8

03070-001

03070-003

Bottom View

OTE

: Auxiliary alarms should be powered from an independent power source separate form the instrument power to avoid alarm failure due to controller malfunction. ALL wiring must be in accordance with the National code and any local governing codes.

End View

Page 7

EX-5100 C

Sensor/Transmitter Enclosure

Printed Circuit Board

Display Overlay Screws

Display Overlay Standoffs

Magnetic Switches

Printed Circuit Board (PCB)

J4 and J8 Terminals are located

Opti

onal

Exit

Zero

OMBUSTIBLE

Display

ENMET Corporation

(2 places)

Display Overlay

(2 places)



on the bottom side of PCB

(2 places)

Relay Output circuit Board

(PCB)

Cutaway View

EX-5100 Interior Expanded View EX-5100 Interior Assembled View

Figure 3: Terminal Positions EX-5100 Sensor/Transmitter

When wiring is complete, re-assemble the EX-5100. Use caution when installing the overlay so as not to damage the magnetic switches. With the area declassified, apply power to the instrument. Allow the sensor transmitter to stabilize for 1 hour and then enter the maintenance menu.

AUTION

To enter the maintenance menu hold the magnet over the M The chart below indicates the maintenance menu sequence see Figure 5 for a detailed maintenance menu flow chart.

: Area must be declassified during this procedure.

ENU

switch for 2 to 4 seconds

Example of Display Function

0LEL

Normal Display Mode

Measurement of target gas

POT 2 on PCB

Tap the S

ELECT

At this point, tap the M [In 300] (+ or – 30). If not then, use POT 2, to adjust to 300(+ or – 30).

OTE:

The EX-5100 will automatically reset the zero point based on a stable signal if [Span] appears before you get the 300 set

then re-enter the zero cal again, to start the clock over.

Once the zero is set, you will see [Span] on the display. Tap the menu until [E instrument in the normal operation mode.

Hold the magnet over the M The Power/Fault LED will flash Green – Red to indicate the EX-5100 is in Maintenance Mode

Tap the magnet over the M

ENU

switch for 2 – 4 seconds to enter the Maintenance Menu

To exit the maintenance Menu and return to the Normal Display Mode: If intended function Tap the magnet over S

ENU

switch to advance to the Zero procedure

For adjusting Zero: If intended function Tap the magnet over S

switch once with the magnet, the display will alternate between [PV: 0] and [Zero]

ENU

switch once with the magnet. The display should now alternate between [Zero] and

XIT

] is displayed, then tap select once to put the

ELECT

switch

Page 8

ENMET Corporation EX-5100 C

5100

1256

LE W

OMBUSTIBLE

4.0 Operation of the EX-5100

It is best to have the EX-5100 transmitters powered up and operational for 24 hours before applying calibration or test gas to them.

When the EX-5100 transmitter is first powered up, it goes through a series of momentary screens, which identify the instrument model number, serial number and software revision. After all of the momentary screens have been displayed, the instrument arrives at the Main Gas Display showing the gas concentration and unit of measurement.

Depending on transmitter configuration and calibration condition, the furthest right character in the display may flash a letter indicating the instrument status. See the Section 4.1.2 below.

4.1 Start up

4.1.1 Typical Start Up

When power is supplied to the EX-5100, the S/T will display the following sequence of information:

OTE

: Software revision may cause variations of display output.

Example of Display Function

The instrument: Serial Number

The instrument: Software Revision

The instrument: Model EX-5100

S/W X.X

IF the right most character is a flashing W

For Combustible Gas

IF the right most character is a flashing C or F See Section 4.1.2

4.1.2 Alternate Start Up

Depending on EX-5100 S/T configuration and calibration condition, the furthest right character in the display may flash a letter indicating the instrument status. See the table below.

Example of Display Function

0 LEL

The instrument is in Warm-up mode

 This should last about 1 minute  The Signal Output is held at 4mA during warm-up

The instrument: Normal Display Mode Measurement of target Gas

IF the right most character is a flashing C

IF the right most character is a flashing F

To view instrument settings tap the M

0 LEC

The last calibration of the instrument was invalid

 The instrument must be recalibrated

There is a sensor fault

0 LEF

ENU

switch until 0 LEL is displayed.

Page 9

EX-5100 C

OMBUSTIBLE

ENMET Corporation

4.2 Normal Display Mode

When the EX-5100 is installed as described in section 3, and in clean air, the POWER green LED is on, the display is lit and the information on the display is measurement of the target gas detected by the EX-5100. The red alarm and fault LEDs are not lit.

To advance through displays of operational information tap the magnet over the M

OTE

Software revision may cause variations of display output.

ENU

button.

See sequence of operational information below:

Display Measurement of the target gas Tap the magnet over the M

ENU

button

0LEL

ENU

ELECT

Display indicates Alarm 1 Set point Tap the magnet over the M

ENU

button

A1: 10

ENU

ELECT

Display indicates Alarm 2 Set point Tap the magnet over the M

ENU

button

Display indicates Alarm 3 Set point Tap the magnet over the M

ENU

button

A2: 20

ENU

A3: 50

ENU

ELECT

No Function for the

ELECT

button

in this mode

Display indicates mA Span range (Full Scale)

Tap the magnet over the M

ENU

button

mA: 100

ENU

ELECT

Display returns to gas measurement

Operational Display Flow Chart

4.2.1 Alarm Conditions EX-5100

There are three alarm set points available. These alarm set points can be changed within limits; see the maintenance section of this manual for the procedure.

If the gas concentration increases above that of the alarm set point, the associated red LED is lit.

Page 10

ENMET Corporation EX-5100 C

0LEL

Exit

5.0 Maintenance of the EX-5100

AUTION

5.1 Maintenance Menu

Do not open the

EX-5100 S/T

in a classified area.

: Do Not Attempt A Span Procedure Without Calibration Gas Applied to The Sensor; if this is done, the S/T is forced

into a calibration fault mode.

Magnetic switches control the M display panel, see Figure 3. The M numbers such as alarm points, calibrations gas, etc. The S

ENU

and S

ELECT

functions. The M

ENU

switch is used to display the various menu options and make incremental changes to

ELECT

ENU

and S

ELECT

switch locations are indicated on the

switch is used to select that option or entered digit. Most

maintenance functions are controlled by simple taps of the supplied magnet on the transmitter glass, below the M

ELECT

boxes on the front panel.

To enter the maintenance menu hold the magnet over the M

ENU

switch for 2 to 4 seconds

Table 1 indicates the maintenance menu sequence see Figure 5 for a detailed maintenance menu flow chart.

Table 1: EX-5100 maintenance Menus Sequence

Example of Display Function

Hold the magnet over M

ENU

switch for 2 – 5 seconds to enter the Maintenance Menu

The Power/Fault LED will flash Green – Red to indicate the EX-5100 is in Maintenance Mode

Tap the magnet over the M

ENU

switch to advance to the Zero procedure

Zero

Normal Display Mode

Measurement of target gas

To exit the maintenance Menu and return to the Normal Display Mode:

If intended function Tap the magnet over S

ELECT

For adjusting Zero: If intended function Tap the magnet over S

ELECT

OMBUSTIBLE

ENU

switch

and

Tap the magnet over the M

Span

ENU

switch to advance to the Span procedure

For adjusting the Span: If intended function Tap the magnet over S

Tap the magnet over the M

Alarm1

ENU

switch to advance to each Alarm set point procedures

Alarm2

For adjusting the Alarm 1, 2 and 3 set points: If Intended function Tap the magnet over S

Alarm3

Tap the magnet over the M

mA Span

Taping the M You must Tap the S

OTE

: If the S/T fails to respond, the magnet may have become weak and may need to be replaced.

ENU

switch without taping the S

ELECT

ENU

switch to advance the mA Span set point procedure

For adjusting the mA Span set point: If intended function Tap the magnet over S

ELECT

switch will allow you to cycle through the menu options.

switch win order to change the desired operation.

ELECT

switch

Page 11

EX-5100 C

Fitting to

Calibration Cover

OMBUSTIBLE

ENMET Corporation

5.2 Calibration of the EX-5100

Calibration is the process of setting the instrument up to read accurately when exposed to a target gas. The Zero function sets the clean air reference point and the Span function sets the sensitivity of the instrument.

Initial Calibration:

Wait 24 hours after initially supplying power to the EX-5100 sensor/transmitter (S/T) before initial calibration. The S/T has been precalibrated at the factory, and initial field calibration should result in only fine tuning to circuit, as well as a way to check that installation is successful. It is not necessary to open the enclosure to make adjustment; the span and zero potentiometers are operated with magnets from outside the enclosure. Do Not open the S/T unless the area is de-classified.

Calibration Zero and Span functions are two separate procedures. They operate independently of each other. It is recommended that the Zero procedure be done prior to the Span procedure. ENMET Corporation recommends at least quarterly calibration of the EX-5100 transmitters.

Calibration equipment is available from ENMET Corporation to calibrate the EX-5100 sensor/transmitter. A calibration adapter will have a fitting for the gas cylinder on one side and a cover to go over the sensor housing on the other.

Generally, a cylinder of 20.9% Oxygen is used to provide a fresh air reference or Zero point for the calibration. Another cylinder is used to provide the Span reference point for calibration. Depending on the instrument calibration, the Span gas may be the same gas that the instrument is calibrated to display, or it may be another gas, which ENMET has found to have a similar response.

Select

p/n 03620-015

calibration cover

Regulator

Gas Cylinder

Figure 4: Calibration Adapter EX-5100 Sensor/Transmitter

Page 12

ENMET Corporation EX-5100 C

OMBUSTIBLE

Calibration: Calibration of Standard Gases: Calibration of the EX-5100 should be preformed using the target gas unless Methane is

known to be a possible background hazard. Reference Table 2 Standard Span Gas The EX-5100 was factory calibrated using 50% LEL levels of gases. Other levels, minimal 20% LEL, are acceptable. Contact

ENMET prior to use.

Table 2: EX-5100 Standard Span Gas

Gas Range Alarm 1* Alarm 2* Alarm 3*

Methane 0 – 100 %LEL 10% LEL 20% LEL 50% LEL 50% LEL Methane 50% LEL Methane Propane 0 – 100 %LEL 10% LEL 20% LEL 50% LEL 50% LEL Propane 50% LEL Propane Hydrogen 0 – 100 %LEL 10% LEL 20% LEL 50% LEL 50% LEL Hydrogen 50% LEL Hydrogen Butane 0 – 100 %LEL 10% LEL 20% LEL 50% LEL 50% LEL Butane 50% LEL Butane

OTE

: These internal sensor/transmitter alarms are independent of the 4-20mA Controller alarm point settings.

AUTION

: If Methane is a possible hazard, calibration should be done using Methane.

Span Calibration Gas Calibration Point

Calibration of Non-Standard Gases: The EX-5100 range is 0 – 100% LEL. All Non-Standard gas instruments have been

factory calibrated on LEL of Methane. Methane is considered to have a coefficient or relative response of 1.00(one). Calibration coefficients relative to Methane have

been generated for over 30 different combustible hydrocarbons and solvents. A partial list of these gases and vapors are listed in Table 3 Non-Standard Gas. An example of how to use this list of relative response coefficients is shown below.

Example: Acetone coefficient factor is 2.86

20%LEL Methane multiplied by the coefficient of 2.86 = 57

Apply the 20%LEL Methane to the instrument the display should read 57, 57 = 57%LEL Acetone. See Section 5.2.2 Span Gas.

AUTION

: If Methane is a possible hazard, the instrument should be programmed and calibrated for Methane. Calibration

should be done using Methane.

Table 3: Selected EX-5100 Non-Standard Gas

Gas

Acetone 2.6% 2.86 20 57 Isobutane 1.8% 1.82 20 36 n-Butane 1.8% 1.82 20 36 Cyclohexane 1.3% 2.22 20 44 Ethane 3.0% 1.18 40 47 Ethanol 3.3% 2.22 20 44 Ethyl Acetate 2.2% 2.86 20 57 Ethylene 2.7% 1.54 40 62 Hydrogen 4.0% 1.05 50 52 Isopropyl Alcohol (IPA) 2.2% 2.86 20 57 Methanol 6.7% 1.43 40 57 Methyl Ethyl Ketone(MEK) 1.9% 2.86 20 57 n-Pentane 1.4% 2.00 20 40 Propane 2.1% 1.67 40 67 Toluene 1.2% 2.50 20 50 Xylene 1.1% 2.50 20 50

In addition to the established coefficients listed in Table 3 above, ENMET can generate calibration data for most common combustible gases and vapors for which a sample can be readily obtained.

%LEL Coefficient

Calibration Gas

%LEL Methane Display Reads

Page 13

EX-5100 C

OMBUSTIBLE

ENMET Corporation

5.2.1 Zero Adjust

A ZERO function should be performed only when the EX-5100 sensor/transmitter is exposed to fresh air. If the air at the sensor is in question, use a cylinder of 20.9% oxygen to provide a clean air reference. Attach the gas cylinder to the regulator and regulator to the calibration cover, allow gas to flow over the sensor for 3-5 minutes.

Enter the maintenance menu by placing the magnet over the M

ENU

switch for 2 to 4 seconds. See Figure 5, EX-5100

Maintenance Menu flow chart. The first menu available is the Zero. Tap the S

ELECT

switch to perform a Zero.

 If the Zero is successful: Cal OK appears and in 1 – 2 seconds display will change to Span.

If you wish to Span the sensor, Tap the S If you wish to Exit the maintenance menu, Tap the M

ELECT

switch. You are now ready to apply gas. Proceed to gas span step 2.

ENU

switch until Exit is displayed, then Tap the S

ELECT

to the instrument to Normal Gas Display.

 If the Zero is Not successful: the sensor is outside of safe parameters to be zeroed, the display will read Bad Zero.

Repeat section 5.2.1 Zero Adjust making sure to use a cylinder of 20.9% Oxygen.

5.2.2 Gas Span

It is recommended that the Zero Function be performed first. Enter the maintenance menu. See Figure 5, EX-5100 Maintenance Menu flow chart.

1. Tap the M

2. Tap the S

and a signal level.

OTE

You can change the Calibration Gas Level. H The M The S

3. Attach the associated calibration gas cylinder to the regulator and calibration cover. See to Figure 3.

4. Open the valve to apply the calibration gas to the sensor.

5. Watch for the signal level to stabilize. Refer to Table 4 for typical response times.

6. Once the signal level has stabilized, the EX-5100 will automatically lock in the calibration data and:

 If the Span is successful, Cal OK appears on the display momentarily, then advances to Alarm 1. Remove calibration gas.

To exit maintenance menu tap the M

ENU

switch once to display Span on the screen.

ELECT

switch to perform a Span procedure. The display will alternate between the calibration gas concentration

OLD

the magnet over the S

ENU

switch changes digit indicated by underscore cursor

ELECT

switch locks underscored digit and moves to next digit

ENU

switch until Exit appears, then tap the S

ELECT

switch for 2 – 4 seconds

ELECT

switch.

switch to return

 If the sensor is outside of acceptable parameters, Bad Span is displayed momentarily, then returns to Span.

Remove calibration gas. Tap the M

ENU

switch until Exit appears, then tap the S

ELECT

switch. Check span gas and

repeat calibration in 30 – 60 minutes.

 If the sensor did not respond to gas, Same mV is displayed momentarily, then returns to Span.

 Remove calibration gas, tap the M

ENU

switch until Exit appears, then tap the S

ELECT

switch and try calibration again in 30-60 minutes. If the sensor will not calibrate See Section 5.4.

 N

OTE

: Some software revisions require the S

ELECT

switch be tapped to accept the signal.

7. Calibration is complete.

Table 4: Calibration Time

Sensor Type Calibration Gas Concentration Calibration Gas Application Time

Catalytic % LEL 1 – 2 minutes

5.2.3 Exit Maintenance Menu

Exit maintenance, by tapping on the M the instrument Normal Gas Display.

ENU

switch until Exit appears on the display. Then Tap the S

ELECT

switch to return to

Page 14

ENMET Corporation EX-5100 C

Tap the

switch to initiate Zero adjustment

Apply

Normal Display Mode

0LEL

ENU

Exit

ENU

OLD

the magnet over the for 2 – 4 seconds to enter the Maintenance Menus

ELECT

Tap the

ELECT

switch to return to the

Normal Gas Display.

Tap the magnet over the

ENU

switch to

cycle through Maintenance Menus

ENU

switch

See Section 5.2.3

Select

OMBUSTIBLE

Zero

ENU

Span

ENU

Alarm1

ENU

Alarm2

ENU

Alarm3

ENU

ELECT

PV: 0

Cal OK

PV: 0

ELECT

Same mV

Bad Sens

ELECT

Bad ZERO

ELECT

Cal OK

Λ 10

SetTDsec

Λ 20

SetTDsec

Λ 50

SetTDsec

ELECT

If the Zero signal is within Preset Specs the EX-5100 will display

Cal OK, See Section 5.2.1

If the Zero signal is not within Preset Specs the EX-5100 will

display Bad ZERO

OTE

tapped to accept the signal.

OTE

: You can change the Calibration Gas Level.

ELECT

The M

ENU

The S

ELECT

: Some software revisions require the S

OLD

the magnet over the S

switch changes digit indicated by underscore cursor

switch locks underscored digit and moves to next digit

ELECT

switch

switch be

See Section 5.2.2

Calibration Gas until signal value becomes stable (about 1 to 4 minutes) See Figure 4 If cal is good display will indicate OK or Same

If cal is not within preset “range” display will

indicate Bad Sens N

OTE

: Some software revisions require the S

ELECT

switch

be tapped to accept the signal.

To change Alarm set points: Tap Menu switch until Alarm to be changed is displayed Tap Select switch to display the set point

The M

ENU

cursor The S

moves to next digit If change is not within range display returns to first digit If change is within range display moves to Set Time Delay

Use M delay. Between 0 and 5 seconds is allowed

If change is within range display moves to next menu Λ - Indicates increasing alarm

V - Indicates decreasing alarm

switch: changes digit indicated by underscore

ELECT

switch: locks in the underscored digit and

ENU

and S

ELECT

switches as above to change time

mA Span

ENU

return to Normal Gas Diplay:

Tap M

ENU

Then tap S

switch until EXIT is displayed

ELECT

switch

Figure 5: EX-5100 Maintenance Menu Flow chart

ELECT

100

To change mA Span set point: Tap the M Tap the S

The M The S

ENU

switch until mA Span is displayed

ELECT

switch to display the set point

ENU

switch changes digit indicated by underscore cursor

ELECT

switch locks underscored digit and moves to next digit

Page 15

EX-5100 C

Zero

OMBUSTIBLE

ENMET Corporation

5.3 Heater Voltage Settings

Heater Voltages are necessary for Catalytic sensors. They are preset at the factory and should not require field adjustment. Do not adjust these voltages unless specifically instructed to do so by ENMET Corporation Technical Support Staff.

AUTION

: Improper adjustment of heater voltages can damage sensors voiding any warranties and also alter the operating

characteristics of the sensor in such a way that the EX-5100 may not respond to it’s target gas.

5.4 Sensor Replacement

AUTION

Sensors should be replaced when they can no longer be calibrated. Replacement sensor part numbers are listed in Section 6.0 of this manual. If you do not know the proper part number for your sensor, be sure to have the EX-5100 serial number available when contacting your Distributor or ENMET Corporation Technical Support.

To replace a sensor, it is necessary to open the transmitter housing. Remove the overlay and screws retaining the PC Board in the enclosure. Refer to Section 3.2, Figure 3. Remove the sensor connector J8 and sensor Wire in the new sensor. Refer to the wiring Table in Section 3.2, Figure 3. After the new sensor has been installed, it is suggested to allow the sensor to stabilize for 24 hours.

A Factory calibration must be performed.

To enter the maintenance menu hold the magnet over the M The chart below indicates the maintenance menu sequence see Figure 5 for a detailed maintenance menu flow chart.

: Area must be declassified during sensor replacement.

ENU

switch for 2 to 4 seconds

Example of Display Function

0LEL

Normal Display Mode

Measurement of target gas

POT 2 on PCB

Hold the magnet over the M The Power/Fault LED will flash Green – Red to indicate the EX-5100 is in Maintenance Mode

Tap the magnet over the M

Exit

ENU

switch for 2 – 4 seconds to enter the Maintenance Menu

To exit the maintenance Menu and return to the Normal Display Mode: If intended function Tap the magnet over S

ENU

switch to advance to the Zero procedure

For adjusting Zero: If intended function Tap the magnet over S

ELECT

switch

Tap the S At this point, tap the M

ELECT

switch once with the magnet, the display will alternate between [PV: 0] and [Zero]

ENU

switch once with the magnet. The display should now alternate between [Zero] and

[In 300] (+ or – 30). If not then, use POT 2, to adjust to 300(+ or – 30).

OTE:

The EX-5100 will automatically reset the zero point based on a stable signal if [Span] appears before you get the 300 set

then re-enter the zero cal again, to start the clock over.

Once the zero is set you will see [Span] on the display. Tap the menu until [Z Place the magnet over the M

ENU

switch and hold for 2-4 seconds while viewing the Zero menu.

ERO

] is displayed.

After 2-4 seconds, an F will appear on the far right hand side of the display. The F indicates that the instrument is in Factory mode.

Perform the calibration Zero and Span procedures as outlined in Section 5.2. Be sure that the F is present when selecting the Zero and Span functions.

The Factory calibration sets a calibration window for future standard instrument calibrations. Only perform a factory calibration when installing a new sensor!!

Page 16

ENMET Corporation EX-5100 C

Calibration Cover

OMBUSTIBLE

6.0 Replacement Part Numbers

ENMET replacement part numbers:

Description Part Number

Sensor, Catalytic * (Optional) 03070-001 Sensor, Catalytic * (Standard) 03070-003 Overlay 06000-058 Magnet 50030-001 Calibration Cover 03620-015 Regulator 02506-004 Calibration Gas, Consult ENMET Distributor or ENMET Corp.

OTE

: The proper calibration cover must be used for the sensor in use, as indicated above. See also Figure 4.

* See Section 3.2 Wiring EX-5100 to a Control Unit on page 4 for identification of sensors.

03620-015

7.0 WARRANTY

ENMET warrants new instruments to be free from defects in workmanship and material under normal use for a period of one year from date of shipment from ENMET. The warranty covers both parts and labor excluding instrument calibration and expendable parts such as calibration gas, filters, batteries, etc... Equipment believed to be defective should be returned to ENMET within the warranty period (transportation prepaid) for inspection. If the evaluation by ENMET confirms that the product is defective, it will be repaired or replaced at no charge, within the stated limitations, and returned prepaid to any location in the United States by the most economical means, e.g. Surface UPS/FedEx Ground. If an expedient means of transportation is requested during the warranty period, the customer is responsible for the difference between the most economical means and the expedient mode. ENMET shall not be liable for any loss or damage caused by the improper use of the product. The purchaser indemnifies and saves harmless the company with respect to any loss or damages that may arise through the use by the purchaser or others of this equipment.

This warranty is expressly given in lieu of all other warranties, either expressed or implied, including that of merchantability, and all other obligations or liabilities of ENMET which may arise in connection with this equipment. ENMET neither assumes nor authorizes any representative or other person to assume for it any obligation or liability other than that which is set forth herein.

NOTE: When returning an instrument to the factory for service:

 Be sure to include paperwork.  A purchase order, return address and telephone number will assist in the expedient repair and return of your unit.  Include any specific instructions.  For warranty service, include date of purchase  If you require an estimate, please contact ENMET Corporation.

There are Return for Repair Instructions and Form on the last pages of this manual. This Form can be copied or used as needed.

Manual part number 80003-096

December 2003 MCN-313a, 01/27/04 MCN-323, 10/19/04 MCN-361, 11/30/06 MCN-386, 10/10/07 MCN-416, 04/03/09

Page 17

PO Box 979 680 Fairfield Court Ann Arbor, Michigan 48106-0979

734.761.1270 Fax 734.761.3220

Returning an Instrument for Repair

ENMET instruments may be returned to the factory or any one of our Field Service Centers for regular repair service or calibration. The ENMET Repair Department and Field Service Centers also perform warranty service work.

When returning an instrument to the factory or service center for service, paperwork must be included which contains the following information:

 A purchase order number or reference number.  A contact name with return address, telephone and fax numbers  Specific instructions regarding desired service or description

of the problems being encountered.

 Date of original purchase and copy of packing slip or invoice

for warranty consideration.

 If a price estimate is required, please note it accordingly and be

sure to include a fax number.

Providing the above information assists in the expedient repair and return of your unit.

Failure to provide this information can result in processing delays.

ENMET charges a one hour minimum billing for all approved repairs with additional time billed to the closest tenth of an hour. All instruments sent to ENMET are subject to a minimum evaluation fee, even if returned unrepaired. Unclaimed instruments that ENMET has received without appropriate paperwork or attempts to advise repair costs that have been unanswered, after a period of 60 days, may be disposed of or returned unrepaired COD with the evaluation fee.

Service centers may have different rates or terms. Be sure to contact them for this information. Repaired instruments are returned by UPS/FedEx Ground and are not insured unless otherwise specified. If

expedited shipping methods or insurance is required, it must be stated in your paperwork.

Note: Warranty of customer installed components.

If a component is purchased and installed in the field, and fails within the warranty term, it can be

returned to ENMET and will be replaced, free of charge, per ENMET’s returned goods procedure.

If the entire instrument is returned to ENMET Corporation with the defective item installed, the item will

be replaced at no cost, but the instrument will be subject to labor charges at half of the standard rate.

Page 18

Mailing Address:

Shipping Address:

Repair Return Form

ENMET Corporation PO Box 979 Ann Arbor, Michigan 48106

Phone Number: 734.761.1270 FAX Number: 734.761.3220

Your Mailing Address:

Contact Name: __________________________ Your Phone: _______________________ Your PO/Reference Number: _______________ Your FAX: _______________________

ENMET Corporation

Attn: Repair Department

680 Fairfield Court

Ann Arbor, Michigan 48108

Your Shipping Address:

Payment Terms: K COD

(Check one) K VISA / MasterCard______________________ ________ ________

Card number Expiration Card Code

K American Express______________________ ________ ________

Card number Expiration Card Code

Name as it appears on the credit card___________________________________

Return Shipping Method:

K UPS: K Ground K 3 Day Select K Next Day Air K ND Air Saver K 2-Day Air K UPS Account number: ________________________

K Federal Express: K Ground K Express Saver K P-1 K Standard K 2-Day Air K FedEx Account number: ________________________

Would you like ENMET to insure the return shipment? K No K Yes Insurance Amount: $_________________