ENMET RECON/4a User manual

ENMET
680 Fairfield Court
Ann Arbor, MI 48108
734.761.1270 Fax [phone]
www.enmet.com
RECON/4a
Portable Multi-Gas Detector
Operation and Maintenance Manual

RECON/4a
ENMET
Manual Revision Date – June 15, 2017
Page | 1
Manual Part No. – 80006-004a
Table of Contents
1.0 INTRODUCTION....................................................................................................................................................................2
1.1 Unpack.............................................................................................................................................................................................2
1.2 Check Order.....................................................................................................................................................................................3
1.3 Serial Numbers.................................................................................................................................................................................3
2.0 FEATURES ...........................................................................................................................................................................4
2.1 RECON/4a Elements .......................................................................................................................................................................4
2.2 RECON/4a Display Features ...........................................................................................................................................................5
2.3 RECON/4a Pushbutton Function.....................................................................................................................................................5
2.4 Sensor Detection Information..........................................................................................................................................................5
3.0 OPERATION RECON/4A......................................................................................................................................................6
3.0.1 Bump Test.......................................................................................................................................................................................................6
3.1 Power On RECON/4a......................................................................................................................................................................6
3.2 Power Off RECON/4a .....................................................................................................................................................................6
3.3 RECON/4a Alarm............................................................................................................................................................................6
3.4 RECON/4a Status Check.................................................................................................................................................................6
3.5 RECON/4a Battery Charging...........................................................................................................................................................7
4.0 CALIBRATION......................................................................................................................................................................8
5.0 SENSOR REPLACEMENT .....................................................................................................................................................10
6.0 TROUBLE SHOOTING GUIDE...............................................................................................................................................10
7.0 TECHNICAL DATA AND SPECIFICATIONS.............................................................................................................................10
8.0 TERMS AND CONDITIONS ...................................................................................................................................................11
8.1 Ordering Information.....................................................................................................................................................................11
8.2 Delivery .........................................................................................................................................................................................11
8.3 Payment Terms ..............................................................................................................................................................................11
8.4 Warranty Information and Guidelines ...........................................................................................................................................11
8.5 Return Policy .................................................................................................................................................................................11
9.0 INSTRUCTIONS FOR RETURNING AN INSTRUMENT FOR SERVICE...........................................................................................12
List of Figures
Figure 1: RECON/4a Features...................................................................................................................................................................4
Figure 2: FECON/4a Display.....................................................................................................................................................................5
Figure 3: Calibration of RECON/4a ..........................................................................................................................................................9
Reference Information:
NOTE:[important information about use of instrument]
CAUTION:[affects equipment – if not followed may cause damage to instrument, sensor etc.…]
WARNING:[affects personnel safety – if not followed may cause bodily injury or death.]
Attention / Warning
Earth Ground
!

RECON/4a
ENMET
Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
1.0 Introduction
The RECON/4a is a direct reading portable multi-gas detector designed to monitor continuously up to 8 hours for hazardous
atmospheric conditions.
Safety information:
NEVER ignore an alarm condition
Please first read the below safety information carefully before using and then operating this device.
• Please don't use a defective device.
• It is suggested that the user perform a "Bump Test" before using the device as described by ISEA standard. Periodic Bump
testing will check the response feature of the sensor. Please make sure that the visual, audible and vibration alarm signals are
functioning properly.
• Only the charger which is specified for RECON/4a can be used. Do Not charge the device in a hazardous location.
• Long term or repeated exposure to toxic and combustible gases above the range of the sensors may influence the performance
or damage the sensors.
• Exposing the RECON/4a to environments consisting of leaded compound, sulfocompound, organic phosphorus compound or
silicon, will cause the combustible gas sensor to be poisoned.
• Do not expose the device to electric shock, a strong magnetic field or serious continuous mechanic shocking.
• There is a lithium battery inside the device. Please do not discard a defective battery in the regular garbage disposal. The
defective battery should be recycled per your local regulations.
• Avoid dropping or seriously shocking the instrument.
NOTE:All specifications stated in this manual may change without notice.
1.1 Unpack
Unpack the RECON/4a 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
NOTE: 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 ENMET 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:
oKeep 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.
oAfter 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. Please 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.

RECON/4a
ENMET
Manual Revision Date – June 15, 2017
Page | 3
Manual Part No. – 80006-004a
Regarding Shortages
Items to be included
with the RECON/4a:
•Instrument
•Charger
•Calibration Cover
•Alligator Clip
•Manual
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
680 Fairfield Court
Ann Arbor, MI 48108
734-761-1270 Fax [phone]
Toll Free: 800-521-2978
1.2 Check Order
Check, the contents of the shipment against the purchase order. Verify that the RECON/4a is received as ordered. 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 RECON/4a is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.

RECON/4a
ENMET
Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
2.0 Features
2.1 RECON/4a Elements
See Figure 1 for location of features:
ITEM
FEATURE
DESCRIPTION
1 Visual Alarm
Red indicators are clearly visible on 3 sides and located at the top of the
RECON/4a.
LED’s activate when the alarm thresholds are exceeded.
2
Pushbutton
Turns the RECON/4a Power On/Off and accesses operational menu functions.
3
Sensors
Detection area
4
Display
The Liquid Crystal Display (LCD) allows messages to be read clearly.
5
Audio Alarm
The audio alarm is located on the front of the RECON/4a.
The audio alarm will sound when the unit alarm levels are reached.
6
Calibration Cover
Hold calibration cover in place during calibration procedure.
7
D-Ring
Attached to alligator clip
8
Alligator-Type Clip
To clip to outside of clothing for hands-free operation
9
Label
Instrument serial number and gases
10
Connection Point
Connection point for battery charger or computer connection.
Figure 1: RECON/4a Features

RECON/4a
ENMET
Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
2.2 RECON/4a Display Features
See Figure 2 for location of display features.
Color LCD, Display
Item
Function
1
Battery status
2 Audio Alarm
3 Vibrator Indication
4 Alarm Indication
5 TWA Alarm Indication
6 High Alarm Indication
7 STEL Alarm Indication
8 Low Alarm Indication
9 Gas Name
10 Unit of Measure, each quadrant
11 Gas Concentration
Figure 2: FECON/4a Display
2.3 RECON/4a Pushbutton Function
Pushbutton
Function
Turn on and off the instrument
Activate the Backlight
Silence the Audio alarm
Stop the Vibratory alarm
RECON/4a Status
Calibration Menu: operation
2.4 Sensor Detection Information
Gas
Detection Range
Preset Low Alarm
Preset High Alarm
TWA
STEL
O
2
0-30%vol
19.5%vol
23.5%vol
／ ／
H
2
S
0-100ppm
10ppm
15ppm
10ppm
15ppm
CO
0-1000ppm
35ppm
200ppm
35ppm
200ppm
LEL
0-100%LEL
20%LEL
50%LEL
／ ／

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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
3.0 Operation RECON/4a
CAUTION: RECON/4a is set to auto zero calibrate after turning on. Turn on the RECON/4a in clean air. Incorrect readings
will occur if the RECON/4a is turned on in contaminated air.
3.0.1 Bump Test
It is recommended that every day before using the device, the user carry out a bump test as described by ISEA standard
before using the device to check if the device is working normally.
Test method:
When the device is powered on, expose it to a level of gas greater than the lower level alarm points. This should be done for
each of the active sensors in the instrument. If all the device’s functions are ok, then device can be used in the working area.
NOTE:If any reading on the active channels failed to responded please follow section 4.0 of this manual to recalibrate the
instrument.
3.1 Power On RECON/4a
Press and hold the push button for 3 seconds until the RECON/4a displays lights and one short audio tone is generated. The
RECON/4a is now on.
The following tests will run: Alarm, Vibrator, “High alarm”, “Low alarm”, “STEL” and “TWA”.
Following this, the instrument will enter operation status. Now, the instrument displays the concentration of the target gases in the
environment. An LED flash will activate approximately every 15 seconds to indicate that the RECON/4a is active.
3.1.1 Battery Conservation
Following the warm up, to conserve battery life, the backlight will turn off within 30 seconds.
NOTE: Pressing the push button or any gas level alarm reactivates the backlight
3.2 Power Off RECON/4a
To turn the RECON/4a off, press and hold the push button for 3 seconds (there will be a count down on the screen), the audio
alarm will give a long sound 3 times and a short sound twice. The RECON/4a should now be off.
3.3 RECON/4a Alarm
Never ignore an alarm condition.
(1) When the gas concentration reaches the preset alarm levels, the RECON/4a will activate relative alarms:
The LED lights flash, audio alarm sounds and vibrator alarm activates.
The user can cancel audio and vibrator alarm by pressing and releasing the push button: The first press will cancel audio alarm,
and the second will cancel vibration.
(2) When the RECON/4a is kept in an environment with the target toxic gas, assuming the gas concentration is more than the
maximum average level of TWA or STEL, the RECON/4a will give the TWA or STEL alert. Now, the user can also cancel the
audio and vibrating alarms by pressing the pushbutton.
Additionally, Alarms sound when the respective sensor faults or if the battery is at a low level. Please refer to the LCD display
for indications.
3.4 RECON/4a Status Check
When the RECON/4a is on and in a non-alarm state, press and release the push button, the LCD screen will display max gas level
and min level*, STEL**, TWA**, current time, serial number(SN) and version number(VER) in turn.
NOTE:*Only O2 sensor has such indication.
**Only toxic gas sensors have STEL and TWA alert.

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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
3.5 RECON/4a Battery Charging
When the battery voltage is low, the RECON/4a will not function properly. To recharge the battery:The RECON/4amust be
Off. Connect the charger to an 110VAC or 220VAC outlet and plug the charging cable into the RECON/4a. When the charging
cycle is completed, the display will indicate full charge.
CAUTION: DO NOT start the battery charge process with the RECON/4a power on; otherwise the charge speed will
be adversely affected. Always charge the battery in normal ambient air. Do not charge the RECON/4a in a hazardous
area to avoid fire or explosion. Disconnect the charger after 24 hours, failure to do so may damage the battery.
Charging the instrument in an environment that is below temperature 0°C may possibly damage the battery as well.
It is recommended to charge the instrument every 3 months if it is not in regular use.

RECON/4a
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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
4.0 Calibration
It is recommended that every day before using the device, the user perform a bump test, to verify that the device is working properly.
Test method:
When the device is powered on, expose it to a level of gas greater than the lower level alarm points. This should be done for each of
the active sensors in the instrument. If all the device’s functions are ok, then the device can be used in the working area.
CAUTION:The RECON/4a will Auto Zero when you enter the calibration menu. Please fully charge the RECON/4a and
put the instrument into a clean air environment before beginning this procedure.
The RECON/4a is capable of calibrating multiple channels at the same time. However, you may elect to calibrate individual gas
sensors. During calibration, the RECON/4a automatically determines if a single gas or multi gas is being applied.
With the RECON/4a ON, Press and hold the push button, the RECON/4a will turn OFF. Continue to press the push button until the
instrument restarts, the display indicates CAL and the instrument beeps twice. The Display will show Cal followed by a countdown
from 30.
•After the countdown, the RECON/4a begins Zero calibration (Zero Cal). The icon, , indicating the zero-calibration process
will start. Calibration time is approximately 1 minute.
Example:
•When Zero Cal is complete, the icon, , will be displayed indicating that the RECON/4a is in Span Calibration. The active
sensors with their associated reference calibration gas levels will be displayed.
Example:
•Connect the cylinder of calibration gas to the regulator and attach the calibration cover to the RECON/4a and open the valve on
the regulator, reference figure 3. The RECON/4a display will change to indicate the sensor response.
NOTE:You will only see calibration numbers for the gas/gases that are being applied; the remaining sensors are not affected
Example:
Oxygen
•(1 to4 minutes) The RECON/4a is comparing internal data to the sensor numbers listed in the display. Note the sensor reference
numbers. When They are stable (not changing), the calibration process will automatically finish.

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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
•After calibration, the screen will display the calibrated gas(es) name(s) and relative data. RECON/4a will automatically turn off.
Example:
NOTE:The RECON/4a automatically determines if a single or multi gas is applied. You will only see calibration numbers for the
gas/gases that are being applied; the remaining sensors are not affected.
•If you are calibrating individual sensors repeat the above process.
•If the calibration was unsuccessful wait one hour and repeat the calibration procedure.
Figure 3: Calibration of RECON/4a
4.1 Calibration Equipment
ENMET part numbers
Description of Part
Part Number
Sensor Cover Assembly RECON/4a
02615-025
Regulator Assembly for 34 liters, aluminum cylinders
02506-002
Use with the following:
Gas Cylinder, aluminum 40ppm H2S, 34 liters
03314-040
Gas Cylinder, Mixed Gas, aluminum 34 liter 500ppm CO, 40ppm H2S, 50%LEL CH4, 20.9%O2,
balance N2
03388-001
Regulator Assembly for 34-liter steel cylinders
02506-004
Use with the following:
Gas Cylinder, steel 50%LEL Methane, 34liter
03220-050
Gas Cylinder, steel 20.9% O2, 34 liters
03296-209
Gas Cylinder, steel 500ppm CO, 34 liters
03219-500
Calibration Cover
Regulator
Gas Cylinder

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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
5.0 Sensor Replacement
When the sensor module fails bump test or calibration, please replace it with a new one.
To guarantee the device’s accuracy, it’s suggested to re-calibrate the sensor modules at least once every 6 months.
CAUTION:Sensor replacement should only be done by a qualified maintenance
person. After installing the new sensor module into the device, calibration must be done before using.
6.0 Trouble Shooting Guide
Normal Problem
Possible Reasons
Solution
Will not power on Battery Discharged Charge unit
Battery Defect
Change Battery
Circuit fault
Contact ENMET / Distributor
Time display is not correct Battery Discharged
Charge the battery and reset the
time and date
Time Zone Difference Reset the time and date
Display “–0” in normal detection
status
Sensor drift Perform zero calibration
Zero Calibration function not
available
Too much sensor drift
Recalibrate or replace the sensor
module
Reading of gas level not accurate
Sensor drift
Recalibrate
Sensor depleted
Replace Sensor
No response to gas
Warming up not completed
Wait till it finishes
Circuit fault
Contact ENMET / Distributor
7.0 Technical Data and Specifications
Electrical Power
Working Voltage
3.7 V
DC
, Lithium battery, rechargeable
Operation Time
Approximate 8 hours, continuous, non-alarm condition
Charge Time
Approximately 6 hours
Operation
Temperature Range
-20°C to +50°C
Relative Humidity
5 to 95% RH, non-condensing
Mechanical
Dimensions
2.7 x 4.8 x 1.2 inches (68 x 120 x 30 mm)
Weight
7.8 ounce (220g)
Explosion Proof
Ingress Protection
Exia IICT3
IP 65
Approval
Designed to be Intrinsically Safe
NOTE:All specifications stated in this manual may change without notice.
Notes:

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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
8.0 Terms and Conditions
8.1 Ordering Information
Address orders to: ENMET
Attention: Customer Service Department
680 Fairfield Court
Ann Arbor, MI 48108
Email Orders: o[email protected]
Phone: [phone]
Fax: [phone]
You may also contact our customer service department by email [e-mail]. MINIMUM ORDER IS $50.00.
8.2 Delivery
Unless Seller otherwise specifies, delivery will be made: FOB Ann Arbor, MI and/or FOB Bowling Green, KY. Title and risk of
loss shall pass to Buyer at that point. Shipping and handling charges will be Prepaid and Added to Buyer’s invoice. Buyer may
request shipping be charged to their own account with a preferred carrier. Seller shall have the right to choose means of
transportation and to route shipment when specific instructions are not included with Buyer’s order. Seller agrees to deliver the
goods and services, within the time, in accordance with specifications, at the prices specified on the face hereof. Buyer’s orders to
this quotation are not subject to cancellation or deferment of delivery without indemnification of loss to the Seller resulting there
from. Seller shall not be liable to Buyer for any loss or damage sustained on account of this delay or nonperformance due to
causes beyond Seller’s control and without his fault or negligence. Where performance of the terms here is contingent upon timely
delivery of goods or services by the Buyer and such delivery is in default, Seller shall be indemnified for any damage or loss
resulting there from, and/or by extension of Seller’s delivery commitment, as applicable.
8.3 Payment Terms
Payment Terms are Net 30 Days from the date of shipment from Seller unless otherwise noted. All shipping and handling costs
will be charged to Buyer on a Prepaid and Add basis. Buyer has the option of paying for shipping by charging its own account
with a carrier
8.4 Warranty Information and Guidelines
The Seller 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. The warrant covers both parts and labor excluding calibration and expendable parts such as filters,
detector tubes, batteries, etc. If the inspection by the Seller 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. The Seller shall not be liable for
any loss or damage caused by the improper use or installation of the product. The Buyer indemnifies and saves harmless the Seller
with respect to any loss or damages that may arise through the use by the Buyer or others of this equipment. This warranty is
expressly given in lieu of all other warranties, either expressed, implied or statutory, including that of merchantability, and all
other obligations, or liabilities of ENMET, LLC for damages arising out of or in connection with the use or repair or performance
of the product. In no event shall ENMET, LLC, be liable for any indirect, incidental, special or consequential damages or for any
delay in the performance by ENMET, LLC, which may arise in connection with this equipment. ENMET neither assumes nor
authorizes any representatives or other persons to assume for it any obligation or liability other than that which is set forth herein.
Buyer agrees to indemnify and save harmless Seller for any damage or loss from lawsuits against Seller by reason of manufacture
of sale of materials, parts, or use of processes resulting from Buyer’s design specifications. Any patent, design, pattern, tool, die,
jig, fixture, drawing, test equipment, or process furnished by Seller; whether possessed by the Seller before the date of this
quotation, or devised or acquired by Seller during performance of the terms of this quotation, shall remain the property of the
Seller except by specific stipulation on the face hereof. Seller reserves the right, without liability, for damage or loss, to destroy
Buyer’s drawings, specifications, patterns and special tools supplied by Buyer for performance of the terms on the face hereof,
unless Buyer gives notice of the disposition of such items.
8.5 Return Policy
All returns for credit must be approved in advance by ENMET, LLC. Such returns are subject to a minimum $50.00 or 20%
restocking charge, whichever is greater. Approval of equipment for return is totally at the discretion of ENMET, LLC. All
requests for return/exchange must be made no later 30 days of the original shipping date from ENMET. The actual amount of any
resulting credit will not be determined prior to a complete inspection of the equipment by ENMET. Calibration gas cylinders
cannot be returned or restocked.

RECON/4a
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Manual Revision Date – June 15, 2017
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Manual Part No. – 80006-004a
9.0 Instructions for Returning an Instrument for Service
Contact the ENMET Service Department for all service requests.
Phone: [phone]
Email: [email protected]
Fill out the “Service Request Form” found at the end of this manual and return with your instrument for all needs. Please send your
instrument for service to the site in which the product was purchased. A new “Service Request Form” may be requested if the one
found in the manual is not available. All instruments should be shipped prepaid to ENMET.
Address for Service:
Michigan Location: ENMET
Attention: Service Department
680 Fairfield Court
Ann Arbor, MI 48108
Kentucky Location: ENMET
62 Corporate Court
Bowling Green, KY 42103
Providing the “Service Request Form” assists in the expedient service and return of your unit and 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 and the customer will be
expected to pay the evaluation fee. Serviced 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.
For Warranty Repairs, please reference ENMET’s “Warranty Information and Guidelines” (found earlier in this section).

Mailing/Shipping Address:
ENMET
680 Fairfield Court
Ann Arbor, MI 48108
[email protected]
Phone: [phone]
Fax: [phone]
ENMET
Rev.2 – 9/15/2016
Service Request Form
Service Request Form
PAYMENT METHOD
☐COD
☐VISA/MasterCard
☐American Express
Card Number
Exp. Date
Security Code:
Name as it Appears on
Card:
RETURN SHIPPING METHOD
☐
UPS Ground
☐
UPS 3 Day
Select
☐
UPS Next Day
Air
☐
UPS ND Air
Saver
☐
UPS 2 Day Air
UPS Account #:
☐
FedEx Ground
☐
FedEx Air
Express Saver
☐
FedEx Air
Overnight Std.
☐
FedEx Air 2
Day
☐
FedEx Air
Overnight P-1
FedEx Account #:
Insure Shipment:
☐
Yes
☐
No
Insurance
Amount:
$
Product Name or Number:
Product Serial Number:
Describe Problem or Needed Service:
Warranty Claim?
☐
Yes
☐
No
CUSTOMER INFORMATION
Billing Address:
Shipping Address:
Contact Name:
Phone #:
Email:
Fax #:
PO/Reference
#: