2 Safety and the environment Safety and the environment 2.1. About this document > Please read this documentation through carefully and familiarize yourself with the product before putting it to use. Pay particular attention to the safety instructions and warning advice in order to prevent injuries and damage to the products.
> Dispose of faulty rechargeable batteries/spent batteries in accordance with the valid legal specifications. > At the end of its useful life, send the product to the separate collection for electric and electronic devices (observe local regulations) or return the product to Testo for disposal.
3 Specifications Specifications 3.1. The testo 315-3 is a convenient and robust measuring instrument for recording ambient CO/CO values. It is used to avoid risks. Fields of application are, for example Heating systems with operation dependent on ambient air Ventilation systems...
4 Product description Product description 4.1. Overview 4.1.1. Control elements and connections 1 Connection for temperature/humidity module (optional) 2 IR interface, record printer 3 CO sensor module 4 CO sensor module (back) 5 Display 6 Keyboard 7 Reset button (back) 8 USB mains unit socket...
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4 Product description Temperature/humidity module option 9 Temperature/humidity sensor 10 Connection for temperature/humidity module to the testo 315-3 Key functions Button Duration Status Function Reading display • Holds measuring values • Displays maximum values • Displays minimum Short values •...
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4 Product description Button Duration Status Function Reading display, • Displays humidity only if humidity and temperature module is • Displays dew connected point/temperature Short • Displays CO/CO Configuration Changes mode option/increases value Reading display Sets zero point/deletes zero point Long Configuration Increases value...
4 Product description 4.1.2. Display 1 Status information Icon Function Battery capacity: 100% / 66% / 33%, <10% Micro USB mains unit is connected. Alarm off, alarm on Flashes: the alarm threshold is exceeded Data transfer Data transfer enabled Lights up: information Flashes: error message Differential measurement calibration...
5 First steps 4.2. Basic properties Power supply Power is supplied to the testo 315-3 via: • Rech. batt., type: Li-Po rechargeable battery pack, 3.7 V/1,500 mAh (can be replaced via Testo Service) • USB mains unit inc. cable (0554 1105), 5,0 V/1.000 mAh...
6 Using the product Using the product 6.1. Performing settings Opening the configuration menu ✓ The instrument is in measurement view. > Open configuration menu: press and hold down until configuration mode appears. Selecting, opening and setting functions > To select the next function: press briefly.
Humidity values are aligned to the alignment points 11.3 % RH and 75.3 % RH and saved. To adjust to the alignment points, use the testo Control and alignment set for humidity sensors (0554 0660). > Cancel configuration menu: press and hold down...
> Display humidity and temperature value: press briefly. > Display dew point: press briefly. Delta measurement ✓ testo 315-3 for CO and CO is in the measurement view. > Call up Delta measurement menu: press until the display changes. Delta measurement is carried out lights up).
330 (0632 3306 / 0632 3307) from firmware version V1.11 • testo 330 (0632 3304 / 0632 3305) from firmware version V1.63 ✓ testo 315-3 is on and a measurement has been carried out. > Switch on data transfer: press and hold down lights up. Data is transferred.
> Let the instrument warm up or cool down. A serious error has occurred: E161 flashes and > Contact your dealer or the Testo lights up Customer Service. flashes and E419 lights up flashes and...
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CO2 measurement is not possible. If we could not answer your question or the solutions given during troubleshooting did not help: please contact your dealer or Testo Customer Service. Contact data see back of this document or website www.testo.com/service-contact.
8 Tips and assistance 8.2. Calibration interval Testo recommends that calibration of the measuring instrument is carried out once a year by Testo Customer Service or a service centre authorised by Testo. 8.3. Accessories and spare parts Description Article no.
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