Measurement-computing WLS-TEMP Manuale Utente

WLS-TEMP Wireless Sensor Measurement User's Guide Document Revision 5 March 2013 © Copyright 2013

WLS-TEMP Specifications 10 You can configure sensor settings when the WLS-TEMP is connected locally to the computer through the USB port, or when th

WLS-TEMP Specifications 11 Restoring factory default settings You can restore the factory default configuration settings with InstaCal. Connecting t

12 Chapter 3 Sensor Connections The WLS-TEMP supports the following temperature sensor types:  Thermocouple – types J, K, R, S, T, N, E, and B  R

WLS-TEMP Specifications 13 Do not connect two different sensor categories to the same channel pair The WLS-TEMP provides a 24-bit A/D converter for

WLS-TEMP Specifications 14 Wiring configuration Connect the thermocouple to the WLS-TEMP using a differential configuration, as shown in Figure 3.

WLS-TEMP Specifications 15 Two-wire configuration The easiest way to connect an RTD sensor or thermistor to the WLS-TEMP is with a two-wire configur

WLS-TEMP Specifications 16 Three-wire configuration A three-wire configuration compensates for lead-wire resistance by using a single-voltage sense

WLS-TEMP Specifications 17 Four-wire, two-sensor A four-wire, two-sensor measurement configuration is shown in Figure 8. Figure 8. Four-wire, two R

WLS-TEMP Specifications 18 Figure 10. Schematic showing switch detection by digital channel DIO0 Caution! All ground pins on the WLS-TEMP (pins 9,

19 Chapter 4 Functional Details Thermocouple measurements A thermocouple consists of two dissimilar metals that are joined together at one end. When

2 HM WLS-TEMP.docx Your new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Thank you for cho

WLS-TEMP Specifications 20 error voltage = resistance of the thermocouple x 105 nA To reduce the error, reduce the length of the thermocouple to low

WLS-TEMP Specifications 21 1 Screw terminal pins 1 to 26 6 Receive LED 2 Screw terminal pins 27 to 52 7 Transmit LED 3 Command LED 8 Wireless Power

WLS-TEMP Specifications 22 LED Function Received Signal Strength (RSS) Indicator LEDs 3 green LED bar graph. The LEDs will turn on when receiving a

23 Chapter 5 Specifications All specifications are subject to change without notice. Typical for 25 °C unless otherwise specified. Specifications in

WLS-TEMP Specifications 24 Channel configurations Table 2. Channel configuration specifications Sensor Category Condition Max number of sensors (all

WLS-TEMP Specifications 25 Accuracy Thermocouple measurement accuracy Table 4. Thermocouple accuracy specifications, including CJC measurement error

WLS-TEMP Specifications 26 RTD measurement accuracy Table 6. RTD measurement accuracy specifications RTD Sensor Temperature (°C) Maximum Accuracy Er

WLS-TEMP Specifications 27 Note 12: Resistance values greater than 180 kΩ cannot be measured by the device in the thermistor mode. The 180 kΩ resi

WLS-TEMP Specifications 28 Temperature alarms Table 11. Temperature alarm specifications Parameter Specification Number of alarms 8 (one per digital

WLS-TEMP Specifications 29 Note 16: Contains FCC ID: OUR-XBEEPRO. The enclosed device complies with Part 15 of the FCC Rules. Operation is subject

3 Table of Contents Preface About this User’s Guide ...

WLS-TEMP Specifications 30 USB specifications Table 17. USB specifications Parameter Specification USB device type USB 2.0 (full-speed) Device compa

WLS-TEMP Specifications 31 LED / button configuration Table 21. LED configuration Parameter Specification Command LED Green LED – indicates a comman

WLS-TEMP Specifications 32 Screw terminal connector Table 22. Screw terminal connector specifications Connector type Screw terminal Wire gauge range

Declaration of Conformity Manufacturer: Measurement Computing Corporation Address: 10 Commerce Way Suite 1008 Norton, MA 02766 USA Category

Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: [email protected]

WLS-TEMP Specifications 4 Open-thermocouple detection (OTD) ...

5 Preface About this User’s Guide What you will learn from this user's guide This user's guide describes the Measurement Computing WLS-TEMP

6 Chapter 1 Introducing the WLS-TEMP Overview: WLS-TEMP features This user's guide contains all of the information you need to configure the WLS

WLS-TEMP Specifications 7 WLS-TEMP block diagram WLS-TEMP functions are illustrated in the block diagram shown here. Figure 1. Functional block dia

8 Chapter 2 Installing the WLS-TEMP What comes with your shipment? The following items are shipped with the WLS-TEMP: Hardware  WLS-TEMP  AC-to-

WLS-TEMP Specifications 9 Complete the following steps to connect the WLS-TEMP to your system: 1. Turn your computer on, and connect the USB cable