Document Reference: X-0036-01-07 Cadmus & Ratifi Operating Manual
Drawn: 13/11/2020
Page 28 of 66
1.13.8
External Temperature Sensor Tab
External temperature channels 3 and 4 on the device are RTD Pt1000 type sensors, which are connected using 2 wires. It is possible to compensate for the lead
resistance of the cable lengths to the sensor element using the screen below. Generally, there is a change of approximately 3.8
Ω
/°C for this type of element, and
sensor cables are normally about a 40th of this. Therefore an error of +0.02°C could be associated with the cable lengths per metre. For maximum accuracy select the
type of sensor supplied with the device. This will automatically remove any cabling errors. For customer probe assemblies the raw cable parameters can be entered.
The “Update Sensor List” function will query the c
loud for the most up-to-date list of probe assemblies.
1.13.9
Battery Tab
The battery tab gives information on the current battery status. This includes the date the batteries were fitted, capacity remaining and estimated life. In the image
below, the device is new and not yet connected to a Wi-Fi network. As previously mentioned in the manual, the battery life cannot be determined by measuring the
battery voltage, so a coulomb counting technique is used. To ensure maximum accuracy, you must only replace batteries with new stock. The battery calculation is
based on the characteristics of the CADMUS-ACC-01 battery. Other batteries may not give the life indicated by the application.
Once new batteries have been fitted, the user must reset the battery information
within the device. This can be done in the window below, or via the “Configuration
Wizard” in ratifi.cloud (Admin Screen).
Failing to reset the battery information will result in incorrect battery life warnings.