Dräger DOL 53 Technical User Manual
www.dol-sensors.com
dol-sensors a/s Hedelund 4, Glyngøre 7870 Roslev Denmark Tlf. +45 72 17 58 88 Fax +45 72 17 59 59 www.dol-sensors.com
DOL 53 AMMONIA (NH3) SENSOR
EN
Technical User Guide
dol-sensors a/s Hedelund 4, Glyngøre 7870 Roslev Denmark Tlf. +45 72 17 58 88 Fax +45 72 17 59 59 www.dol-sensors.com
EN – TECHNICAL USER GUIDE
SAFETY-RELATED INFORMATION
Before using this product, carefully read the Technical user guide.
Strictly follow the Technical user guide. The user must fully understand and strictly observe the instructions. Use the product only for the
purposes specified in the Intended use section of this document.
Do not dispose of the Technical user guide. Ensure that they are retained and appropriately used by the product user.
Comply with all local and national rules and regulations associated with this product.
Use only genuine spare parts and accessories, or the proper functioning of the product may be impaired.
Do not use a faulty or incomplete product. Do not modify the product.
Notify the supplier in the event of any component fault or failure.
WARNING SYMBOLS
MEANING OF THE WARNING SYMBOLS
The following warning symbols are used in this document to identify and highlight the relevant warning texts which require increased care and
attention on the part of the user. The meanings of the warning symbols are defined as follows:
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in physical injury, or damage to the product or
environment. It may also be used to alert against unsafe practices.
NOTICE
Indicates additional information on how to use the product.
PRODUCT DESCRIPTION
DOL 53 consists of an electrochemical diffusion sensor and signal processing electronics. DOL 53 works like a "nose". DOL 53 only transmits the
concentration measured at the sensor. The measuring unit ppm (parts per million) is a volume concentration. DOL 53 is connected to suitable
control unit over a 3-wire cable. The measuring signal during normal operation is between 0 V and 10 V.
DOL 53 is used for the stationary continuous monitoring of ammonia concentrations in the ambient air under atmospheric conditions
1. Connector and coupling
2. Mounting lug
3. Sensor element
4. Mounting ring
5. LED green/yellow
6. DOL 53 housing
7. Dust cap
dol-sensors a/s Hedelund 4, Glyngøre 7870 Roslev Denmark Tlf. +45 72 17 58 88 Fax +45 72 17 59 59 www.dol-sensors.com
EN – TECHNICAL USER GUIDE
MOUNTING GUIDE
For optimum measurements DOL 53 should be installed at the centre of the area to be monitored. DOL 53 must be installed out of reach of
animals, accessible for maintenance work, suspended from the lug at the end of the housing or alternatively with a mounting bracket on the wall.
DOL 53 must not be mounted near the fresh air supply, in front of windows or doors, large electrical consumers (electromagnetic
influences), in exhaust air ducts, behind air washers or behind screens. DOL 53 must not be mounted in inaccessible areas.
Protect against direct exposure to dust or splash water. For wall mounting, unobstructed gas entry must be ensured.
DOL 53 must be mounted vertically with the sensor pointing down; ±30° at a
location with low vibration and, as far as possible, stable temperatures.
NOTICE DOL 53 must not be suspended from the electric cable.
INSTALLATION GUIDE
The scope of delivery includes an approx. 2.5-meter-long cable connection (5) for
the electrical installation up to the junction box (1). For the electrical supply and
signal transmission to the control unit cables with adequate cross-section must be
used. Connect the cable from the installation kit to the connector (4) and in the
junction box (1). Connect the GND cable in the control unit to protective earth.
The cable must be routed in a manner to obtain a "water loop" (2) for water to
drop off. Insert the cable into the clamping device (3) at the mounting lug. Attach
with a cable tie. Do not stress the cable.
SENSOR INSTALLATION
1. Remove the sensor element from the metal container.
2. Insert it into DOL 53 (6).
3. Secure it with the mounting ring (7).
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