Measurement-computing WLS-TEMP Instrukcja Użytkownika Strona 15
- Strona / 34
- Spis treści
- BOOKMARKI
Oceniono. / 5. Na podstawie oceny klientów
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 configuration,
since it requires the fewest connections to the sensor. With this method, the two wires that provide the RTD
sensor with its excitation current also measure the voltage across the sensor.
Since RTDs exhibit a low nominal resistance, the lead wire resistance can affect measurement accuracy. For
example, connecting lead wires that have a resistance of 1 Ω (0.5 Ω each lead) to a 100 Ω platinum RTD results
in a 1% measurement error.
With a two-wire configuration, you can connect either one sensor per channel pair, or two sensors per channel
pair.
Two-wire, single-sensor
A two-wire, single-sensor measurement configuration is shown in Figure 4.
Figure 4. Two-wire, single RTD or thermistor sensor measurement configuration
When you select a two-wire, single-sensor configuration with InstaCal, connections to C#H and C#L are made
internally.
Two-wire, two sensor
A two-wire, two-sensor measurement configuration is shown in Figure 5.
Figure 5. Two-wire, two RTD or thermistor sensors measurement configuration
When you select a two-wire, two-sensor configuration with InstaCal, connections to C#H (first sensor) and
C#H/C#L (second sensor) are made internally.
When configured for two-wire mode, connect both sensors to obtain proper measurements.
- User's Guide 1
- HM WLS-TEMP.docx 2
- Table of Contents 3
- Chapter 5 4
- About this User’s Guide 5
- Introducing the WLS-TEMP 6
- WLS-TEMP block diagram 7
- Installing the WLS-TEMP 8
- Configuring the hardware 9
- Calibrating the WLS-TEMP 11
- Warm up time 11
- Sensor Connections 12
- Thermocouple connections 13
- Wiring configuration 14
- Two-wire configuration 15
- Three-wire configuration 16
- Four-wire configuration 16
- Digital I/O connections 17
- WLS-TEMP Specifications 18
- Functional Details 19
- AC power supply 20
- External components 20
- Screw terminals 21
- USB connector 21
- Status LEDs 21
- LED Test button 22
- Specifications 23
- Channel configurations 24
- Compatible sensors 24
- Accuracy 25
- RTD measurement accuracy 26
- Digital input/output 27
- Temperature alarms 28
- Microcontroller 28
- Wireless communications 28
- USB +5V voltage 29
- USB specifications 30
- Environmental 30
- Mechanical 30
- LED / button configuration 31
- Screw terminal connector 32
- Declaration of Conformity 33
Powiązane produkty i podręczniki dla Sprzęt komputerowy Measurement-computing WLS-TEMP
(28 strony)Radio Shack 31-5021 manuels
Manuels d'utilisation et guides de l'utilisateur pour Récepteurs et amplificateurs Radio Shack 31-5021.
Nous fournissons des manuels en pdf 1 Radio Shack 31-5021 à télécharger gratuitement par type de document : Manuel de l'utilisateur
Komentarze do niniejszej Instrukcji