ENMET TDX User Manual
ENMETENMET Corporation
PO Box 979
Ann Arbor, MI 48106-0979
TDX – Series
Explosionproof
Oxygen & Toxic Gas
Sensor/Transmitter
Operating Manual
80003-128
02-25-94
MCN-204; 06/24/99
MCN-219; 06/30/99
MCN-269, 02/08/02
Table of Contents
1.0 Introduction................................................................................................................................................................................................1
1.1 Unpack....................................................................................................................................................................................................1
1.2 Check Order...........................................................................................................................................................................................1
1.3 Serial Numbers......................................................................................................................................................................................1
2.0 Operation....................................................................................................................................................................................................2
3.0 Description of Components.....................................................................................................................................................................2
3.1 Description of Sensor...........................................................................................................................................................................2
3.2 Description of Transmitter...................................................................................................................................................................2
4.0 Installation of the TDX-Series Unit .......................................................................................................................................................3
5.0 Calibration of the TDX-Series Unit .......................................................................................................................................................4
5.1 Checking Channel Response to Gas..................................................................................................................................................4
5.2 Calibration of a Channel......................................................................................................................................................................5
5.2.1 Zero Point Adjustment.................................................................................................................................................................5
5.2.2 Span Calibration Adjustment......................................................................................................................................................5
5.2.3 Applying Calibration Gas ............................................................................................................................................................ 5
6.0 TDX Sensor Life and Replacement.......................................................................................................................................................6
7.0 Maintenance...............................................................................................................................................................................................6
8.0 Calibration Kits .........................................................................................................................................................................................6
9.0 WARRANTY .............................................................................................................................................................................................6
List of Illustrations
Figure 1: Sensor/Transmitter Module Diagram..........................................................................................................................................2
Figure 2a: Mounting Dimensions Diagram.................................................................................................................................................3
Figure 2: System Wiring Diagram................................................................................................................................................................3
Figure 3: Calibration Diagram.......................................................................................................................................................................4
TDX-Series ENMET Corporation
1.0 Introduction1.0 Introduction
The TDX-Series gas detection unit accurately monitors low concentrations of a designated toxic gas. An
electrochemical sensor design produces a linear response to low gas concentrations, providing accurate signal output
for recorder equipment interface.
NOTE: All specifications stated in this manual are subject to change without notice.
1.1 Unpack
Unpack the TDX-Series 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.
q This shipment was carefully inspected, verified and properly packaged at our company and delivered to the
carrier in good condition.
q When it was picked up by the carrier at ENMET, it legally became your company’s property.
q 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.
q 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.
q 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 TDX-Series 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 TDX-Series is serialized. These numbers are on tags on the equipment and are on record in an ENMET
database.
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