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- Page 1 Technical User Guide DOL 53 Ammonia sensor For other language variants of this document we refer to www.dol-sensors.com your local dealer. dol-sensors a/s – Agro Food Park 15 – DK-8200 Aarhus N – T: +45 7217 5888 – F: +45 7217 5959...
- Page 2 1 Product description The DOL 53 is an electrochemical sensor designed to measure ammonia levels in livestock houses. The sen- sor consists of a sensor element, a house, and a dust filter. The sensor element (sensor head) and filter can be replaced as required, and the sensor element is supplied in a can for additional protection.
- Page 3 DOL 53 must warm up for half an hour before being ready to measure (see the section of LED indication). The sensor must be placed in middle of the livestock house or in the center between walls/filters when used in an air cleaner.
- Page 4 Technical User Guide DOL 53 must not be suspended from the electric cable. Figure 1: DOL 53 must be mounted vertically with the sensor pointing down; +/- 15° at a location with low vibration and, as far as possible, stable temperatures.
- Page 5 Short circuit in supply cable. Check installation for short circuit. Overvoltage or undervoltage at the Check electric supply voltage at the sensor with a sensor. multi-meter. Incorrect voltage (e.g. 230 V AC) Replace the DOL 53 housing. applied, electronics damaged. www.dol-sensors.com DOL 53...
- Page 6 Unstable measured value. Dynamic signal fluctuations with No activity, continue to monitor. a period of more than 5 seconds can arise from turbulence with fresh air. Wet sensor. DOL 53 was cleaned with water. Wipe DOL 53 dry. www.dol-sensors.com DOL 53...
- Page 7 This affects the sensitivity. The dust filter must always be re- placed prior to checking the sensitivity. DOL 53 must be removed during cleaning and disinfection. After removing the connector, screw on the sealing plug. A missing sealing plug leads to corrosion of the connector.
- Page 8 Technical User Guide DOL 53, 0-10V, 0-100ppm NH Pressure 700 – 1300 Max. storage time (sen- See date on sensor can sor element) Warranty sensor element years Expected lifetime of Not beyond the date on the sensor years sensor element...
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