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 315-4 is a convenient and robust measuring instrument for recording ambient CO values. It is used for risk prevention. Fields of application are, for example Heating systems with operation dependent on ambient air Ventilation systems 3.2.
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20 °C/68 °F), mains operation possible Display Segment display Supported printer 0554 0549/0554 0547 License acc. to EN 50543 Warranty Instrument: 24 months Rechargeable battery: 12 months CO sensor: 12 months Warranty terms: see website www.testo.com/warranty EU guideline 2014/30/EU...
4 Product description Product description 4.1. Overview 4.1.1. Control elements and connections 1 Connection for temperature/humidity module (optional) 2 Report printer IR interface 3 CO sensor module 4 Display 5 Keyboard 6 Reset button (back) 7 USB mains unit socket...
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4 Product description Temperature/humidity module option 8 Temperature/humidity sensor 9 Connection for temperature/humidity module Keyboard functions Duration Status Function Reading display • Holds readings • Displays maximum values • Displays minimum values Short • Displays current values Configuration Confirms entry, next mode setting Reading display...
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4 Product description Duration Status Function Reading display, • Displays humidity only if humidity and temperature module is • Displays dew connected point/temperature Short • Displays CO Configuration Changes mode option/increases value Sets zero Reading display point/deletes zero point Long Configuration Increases value mode...
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 not used Data transfer enabled Lights up: Note Flashes: Error message Differential measurement...
Power is supplied to the instrument via: • Rechargeable battery, type: Li-Po rechargeable battery pack, 3.7 V/1500 mAh (can be replaced via Testo-Service) • USB mains unit including cable (0554 1105), 5.0 V/1000 mAh With an attached mains unit, power is supplied automatically via the mains unit and the instrument's rechargeable battery is charged.
6 Using the product Using the product 6.1. Performing settings Open 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...
6 Using the product Hold/Max/Min ✓ Instrument is in measurement view. The readings for Hold/Max/Min can be called up for: • • Temperature and humidity (if temperature and humidity module is connected) • Dew point (if temperature and humidity module is connected) >...
7 Maintaining the product Maintaining the product Charging the rechargeable battery 1. Connect the mains unit connector to the instrument's micro USB socket. 2. Connect the mains plug to the mains socket. The charging process will start automatically. Charging is indicated by a change in the battery icon segments.
> Let the instrument warm up or cool down. A serious error has occurred: flashes and E161 > Contact your dealer or the Testo lights up Customer Service. flashes and E419 lights up flashes and...
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 authorized by Testo. 8.3. Accessories and spare parts Description Article no.
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