Omega Products OM-WLS-TEMP User Manual

8-Channel Wireless Temperature Measurement Module

OM-WLS-TEMP

U 8 Temperature

Input Channels

U Supports Thermocouple

Types J, K, T, E, R, S, B, N, RTD’s, Thermistors and Semi-Conductor Temperature Sensors

U Built-In Cold Junction

Compensation and Open Thermocouple Detection

U Eight Digital I/O–User

Conﬁguration for Alarms

U 802.15.4 Wireless Protocol U Range: Up to 46 m (150') Indoors

and 732 m (2400') Outdoors

OM-WLS-TEMP

shown smaller than

actual size.

The OM-WLS-TEMP is a wireless USB 2.0 full-speed temperature input module (fully compatible with both USB 1.1 and 2.0).

The OM-WLS-TEMP provides 8 differential input channels that are software programmable for different sensor types including:

• Thermocouple Types J, K, T, E,

R, S, B, N

• RTD–2, 3 or 4-wire Pt100 RTDs • Thermistors–2, 3 or 4-wire

measurements

• Semiconductor temperature

sensors–LM36 or equivalent

The OM-WLS-TEMP provides a 24-bit analog-to-digital (A/D) converter for each pair of differential analog input channels. Each pair of differential inputs constitutes a channel pair. A different type of sensor (i.e., thermocouple, RTD, thermistor or semiconductor) can be connected to each channel pair, however both channels in the channel pair need to be the same sensor type (although if thermocouples are connected it is possible to mix thermocouple types).

The OM-WLS-TEMP provides two integrated cold junction compensation (CJC) sensors for thermocouple measurements and built-in current excitation sources for resistive sensor measurements, an open thermocouple detection feature allows detection of a broken thermocouple. An onboard microprocessor automatically linearizes the measurement data.

The OM-WLS-TEMP features 8 independent temperature alarms. Each alarm controls an associated digital I/O channel as an alarm output. The input to each alarm is one of the temperature channel inputs. The output of each alarm is software conﬁgurable as active high or low. Temperature threshold conditions are software programmable to activate each alarm. When an alarm is activated, the associated digital I/O channel is driven to the output state. All conﬁgurable options are software programmable. The OM-WLS-TEMP is fully software-calibrated.

The OM-WLS-TEMP can be operated as a standalone plug-and-play device which draws power through the USB cable.

The unit can also be operated as a remote device that communicates with the computer through the OM-WLS-IFC USB-to-wireless interface device. An external power supply is shipped with the device to provide power during remote operation.

When operating as a remote device, the OM-WLS-TEMP communicates with the computer through the OM-WLS-IFC device connected to the computer’s USB port. Before the OM-WLS-TEMP can be operated remotely, it needs to be connected to the computer’s USB port and the network parameters conﬁgured to establish a wireless link with the interface device. Only devices with the same parameter settings can communicate with each other. All conﬁgurable options are software programmable using the included InstaCal

LEDs on the OM-WLS-TEMP indicate the status of communications over the wireless link. An LED bar graph shows the fade margin of signals received by the OM-WLS-TEMP.

utility software.

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Software

The OM-WLS-TEMP modules ship with an impressive array of software, including the new TracerDAQ®, a fullfeatured, out-of-the-box data logging, viewing, and analysis application.

Driver support and detailed example programs are included for Universal Library programming libraries for Microsoft Studio® programming languages, and other languages, including DASYLab®, and ULx for NI LabVIEW® (comprehensive library of Vls and example programs compatible with 32-bit and 64-bit LabVIEW v8.5 through 2012) and InstaCalTM installation, calibration and test utility-powerful solutions for programmers and nonprogrammers alike. These modules operate under Micrsoft Windows® XP (32-bit only) and VISTA/7/8 (32-bit and 64-bit) operating systems.

Visual

TracerDAQ Strip Chart.

The OM-WLS-TEMP data acquisition module is supplied with TracerDAQTM software which is a collection of four virtual instrument applications used to graphically display and store input data and generate output signals:

TracerDAQ Pro Strip Chart

with Measurements.

• Strip Chart—Log and graph values acquire from analog inputs, digital

inputs, temperature inputs and counter inputs

• Oscilloscope—Display values acquired from analog inputs

• Function Generator—Generate waveforms for analog outputs

• Rate Generator—Generate waveforms for counter outputs

SWD-TRACERDAQ-PRO, sold separately is an enhanced version of TracerDAQ. TracerDAQ PRO is shown below.

A comparison

of some of the features included in TracerDAQ vs

Features Comparison

Strip Chart

Features TracerDAQ TracerDAQ Pro

Channel Types Analog input, temperature input, Analog input, temperature input, digital input, event counter digital input, event counter

Number of Channels 8 48

Number of Lanes 2 8 Maximum Samples per Channel 32,000 1 million Alarm Conditions No Yes Measurements Window No Yes Enter Annotations No Yes Software Triggering No Yes Hardware Triggering No Yes Time-of-Day Triggering No Yes Linear Scaling No Yes

Oscilloscope

Features TracerDAQ TracerDAQ Pro

Channel Type Analog input Analog input

Number of Channels 2 4 Measurements Window No Yes Reference Channel No Yes

Math Channel No Yes

Function Generator

Features TracerDAQ TracerDAQ Pro

Channel Type Analog output Analog output Number of Channels 1 16

Waveform Types Sine Sine, square, triangle, ﬂat, pulse, ramp, random, arbitrary Duty Cycle No Yes Phase No Yes Gate Ratio No Yes Rate Multiplier No Yes Sweep (Linear and Exponential) No Yes

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Rate Generator

Features TracerDAQ TracerDAQ Pro

Channel Type Counter output Counter output

Number of Channels 1 20

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