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ENMET Corporation
PO Box 979
Ann Arbor, MI 48106-0979
www.enmet.com
Venturi Module
With Enclosure and Filter
Manual
Manual Part Number
80021-017
MCN-460, 03/19/12
Page 2
Table of Contents
1.0 I
NTRODUCTION
.......................................................................................................................................... 1
1.1 Unpack.............................................................................................................................................................. 1
1.2 Check Order ..................................................................................................................................................... 1
1.3 Serial Numbers ................................................................................................................................................. 1
2.0 I
NSTALLATION
........................................................................................................................................... 2
2.1 Installation Sample Draw Module .................................................................................................................... 2
2.2 Installation of MOS/Combustible Sample Draw Adapter ................................................................................ 3
3.0 C
ALIBRATION
............................................................................................................................................ 5
4.0 WARRANTY ........................................................................................................................................... 6
List of Illustrations
F
IGURE 1: MOUNTING DIMENSIONS
F
IGURE 2:
F
IGURE 3: COMBUSTIBLE SENSOR ASSEMBLY
F
IGURE 4: CONNECT GAS TO VENTURI MODULE
MOS S
ENSOR ASSEMBLY
N
OTE
: [important information about use of instrument – if not followed may have to redo some steps.]
C
AUTION
: [affects equipment – if not followed may cause damage to instrument, sensor etc…]
..................................................................................................................... 2
.................................................................................................................. 3
.................................................................................................... 4
.................................................................................................. 5
W
ARNING
:
[affects personnel safety – if not followed may cause bodily injury or death.]
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Venturi Module ENMET Corporation
1.0 Introduction
The ENMET Venturi Module is designed to be used with most ENMET Corporation stationary sensor transmitters.
N
OTE
: All specifications stated in this manual may change without notice.
1.1 Unpack
Unpack the Venturi Module 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
N
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 Venturi Module 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 Venturi Module is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.
1
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Venturi Module ENMET Corporation
Mountin
g Feet
14.94
10.00
2.0 Installation
See Figure 1 for mounting Dimensions. Dimensions are in inches.
2.1 Installation Sample Draw Module
1. Mount the sample draw module at a convenient location; use the four mounting holes provided. See Figure 1.
C
AUTION
C
AUTION
: Do not exceed 120
PSI
to inlet to the venturi pump.
2. Supply compressed air to the inlet of the venturi pump, located at the upper left side. The inlet fitting is a Hansen 1000 quick
release pneumatic connector. If a different connector is desired, remove and discard the Hansen fitting; the replacement
fitting must have ¼ NPT male threads.
3. The sensor assembly can be mounted on the sample draw assembly plate, or it can be located within six feet of the plate. If
necessary, connect the sample line from the bottom port of the flowmeter to the output side of the sensor assembly.
: If reactive gasses such as CL2, HCL, NH3 or others are being sampled, make sure to use appropriate sample tubing
material. Teflon lined vinyl tubing is acceptable for most applications.
4. Supply tubing from the sensor input fitting to the sample point. The sample must never include liquid.
5. Set the regulator between 8 and 18
PSI
.
6. Set the flowmeter between 3.0 and 8.0 cc/min x 100.
4 places
Inches
Detail of Adapter Fitting
Inches
Figure 1: Mounting Dimensions
2
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Venturi Module ENMET Corporation
Sensor
Sensor
Top View
Threads of MOS Sensor
TRU-Arc must be covered
2.2 Installation of MOS/Combustible Sample Draw Adapter
Proper operation and gas detection require that there be no leaks in the system.
To insure proper operation a seal must be formed between the MOS sensor or Combustible sensor and the sample draw adapter.
This is accomplished with the use of Teflon Tape.
Steps to Teflon Tape sensor and adapter:
1. Wrap the threads of the MOS sensor with Teflon tape, 4 to 6 complete rotations. Be sure to pull the tape tight as you wrap
it, to insure the tape fills the threads.
2. F
OR
MOS S
• Remove the black retaining ring from the sensor and place 1 rotation of Teflon tape around the sensor to cover the TRUArc. See figure 2 and 3 sensor assembly and sensor detail below. Note the direction of the black retaining ring.
• Replace the black retaining ring and attach the sample draw adapter.
3. Tighten the sample draw adapter onto the sensor as far as possible.
4. Attach the input and output tubing to the adapter.
5. Check for leaks. With the sample draw system operating, plug the input connection to the sample draw adapter. Proper
installation will register 0 flow rate on the flow meter.
If the flow meter does not register 0, remove the sample draw adapter and re-tape it.
6. In order to remove the sample draw adapter you must first disconnect the tubing from the adapter fitting.
Press and hold the inner ring of the fitting while removing the tubing.
C
AUTION
: Do Not pull out the inner ring of adapter fitting. See detail of adapter fitting in figure 1.
See Detail
ENSORS
:
Sample Out
Sample In
Apply Teflon Tape
with Teflon Tape
Enclosure
Black Retaining Ring
Sensor
Type 03033-XXX
Sample In
Sample Out
Figure 2: MOS Sensor Assembly
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Venturi Module ENMET Corporation
Sensor
Threads of Combustible
Sensor
Elbow between
Sensor
Sample In
Sample Out
Enclosure
See Detail
Side View
Sensor
Sensor Apply Teflon Tape
Enclosure and
Type 03070-002
Figure 3: Combustible Sensor Assembly
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Venturi Module ENMET Corporation
Humidifier required
Side View
Top View
3.0 Calibration
See Figures 4 and 5.
1. Consult monitor or sensor/transmitter manual to determine how to make adjustments to the circuitry during calibration.
2. Connect the appropriate calibration gas cylinder to the flow demand calibration adapter. For all MOS sensors supplying
water to humidify gas is required. See Figure 4.
• For Combustible Sensors: Connect the output of the flow demand regulator directly to the air input of the sample draw
module.
• For MOS Sensors: Connect the output of the flow demand regulator to the humidifier. Connect the output of the
humidifier to the air input of the sample draw module.
for all MOS Sensors
Flow Demand
Regulator
Gas Cylinder
To air input
To Regulator
Figure 4: Connect Gas to Venturi Module
Tubing
5
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Venturi Module ENMET Corporation
4.0 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 is a Repair Return Form on the last pages of this manual. This form can be copied or used as needed.
Manual Part Number
80021-017
August 2001
MCN-307, 09/26/03
MCN-460, 03/19/12
Notes:
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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.
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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: $_________________
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