BANNER T-GAGE M18T Series Infrared Temperature Sensors User Manual

BANNER T-GAGE M18T Series Infrared Temperature Sensors

Specifications:

• 18 mm sensor
• 0-10V and 4-20mA analog output
• TEACH-mode programming

Features:

• Models: M18TUP8, M18TUP8Q, M18TUP6E, M18TUP6EQ, M18TUP14, M18TUP14Q, M18TIP8, M18TIP8Q, M18TIP6E, M18TIP6EQ, M18TIP14, M18TIP14Q
• Cable: 5-wire, 2 m (6.5′) shielded cable D:S Ratio: 8:1, 6:1, 14:1
• Sensing Face: Integrated lens, Enclosed Plastic face (for food industry use), Germanium lens
• Supply Voltage: 0 to 10V dc analog, plus PNP Alarm; 12 to 30V dc; 4 – 20 mA analog, plus PNP Alarm

Product Usage Instructions

Installation:

Follow the wiring instructions provided in the user manual to connect the sensor to the power supply and output devices.

2. TEACH-mode Programming:

To program the sensor, follow these steps:

1. Ensure the power supply is connected and the sensor is powered on.
2. Locate the TEACH push button on the sensor (refer to Figure 1).
3. Press and hold the TEACH push button until the Power/Teach LED starts blinking.
4. Position the sensor towards the target object and adjust the distance according to the desired spot size (refer to Figure 2).
5. Press and release the TEACH push button to teach the sensor the desired temperature range.
6. The analog output and alarm output will be automatically set based on the taught conditions (refer to Figure 3).

Apparent Temperature:

The apparent temperature measured by the sensor can be influenced by the object’s emissivity and whether or not the object fills the sensor’s field of view.

Alarm Output:

The alarm output will activate when the analog output reaches 10V or 20mA, depending on the model. Refer to Figure 3 for more information on analog/alarm outputs as a function of taught conditions.

Analog Output:

The T-GAGE analog sensor can be programmed for either positive or negative output slope. The slope is determined by the teach order. If the cold limit is taught first, the slope will be positive; if the hot limit is taught first, the slope will be negative. The output signal will be distributed over the width of the programmed sensing window.

FAQ

Q: Can I use this sensor for personnel protection?

A: No, this product should not be used as a sensing device for personnel protection as it does not include the necessary circuitry for personnel safety applications.

Q: Can I use this sensor for absolute temperature measurement or safety-

related fire detection?

A: No, the T-GAGE M18T sensor is not intended for absolute temperature measurement or safety-related fire detection use.

T-GAGE™ M18T Series Infrared Temperature Sensors
18 mm sensor with 0-10V and 4-20mA analog output and TEACH-mode programming For the latest technical information about this product, including specifications, dimensions, and wiring, see www.BannerEngineering.com

Features

• Fast 75 ms response time
• Easy-to-use TEACH mode programming; no potentiometer adjustments
• Small self-contained package, no auxiliary controller needed
• Rugged encapsulated design for harsh environments
• Choose 2 meter or 9 meter unterminated cable, or 5-pin Euro-style QD connector
• Product motion not required for sensing
• Remote Teach available in both Static and Dynamic modes
• Alarm output for signal maximum
• Programming for either positive or negative analog slope based on teach order

Models

Model| **Cable*| D:S Ratio| Sensing Face| Supply Voltage| Output
---|---|---|---|---|---
M18TUP8**| 5-wire, 2 m (6.5′) shielded cable|

8:1

|

Integrated lens

|

12 to 30V dc

|

0 to 10V dc ana- log, plus PNP Alarm

M18TUP8Q| 5-pin Euro-style integral QD
M18TUP6E| 5-wire, 2 m (6.5′) shielded cable|

6:1

| Enclosed Plastic face (for food industry use)
M18TUP6EQ| 5-pin, Euro-style integral QD
M18TUP14| 5-wire, 2 m (6.5′) shielded cable|

14:1

| Germanium lens
M18TUP14Q| 5-pin, Euro-style integral QD
M18TIP8| 5-wire, 2 m (6.5′) shielded cable|

8:1

| Integrated lens|

4 – 20 mA ana- log, plus PNP Alarm

M18TIP8Q| 5-pin Euro-style integral QD
M18TIP6E| 5-wire, 2 m (6.5′) shielded cable|

6:1

| Enclosed Plastic face (for food industry use)
M18TIP6EQ| 5-pin, Euro-style integral QD
M18TIP14| 5-wire, 2 m (6.5′) shielded cable|

14:1

| Germanium lens
M18TIP14Q| 5-pin, Euro-style integral QD

• For 9 m (30′) cable, add suffix “W/30” to the model number of any cabled model (e.g., M18TUP8 W/30). A model with a QD connector requires an accessory mating cable. See Quick-Disconnect Cables on page 8 for more information.

WARNING: Not To Be Used for Personnel Protection
Never use this product as a sensing device for personnel protection. Doing so could lead to seri-ous injury or death. This product does NOT include the self-checking redundant circuitry necessary to allow its use in personnel safety applications. A sensor failure or malfunction can cause either an ener- gized or de-energized sensor output condition.

Overview

The T-GAGE analog sensor is a passive, non-contacting, temperature-based de- vice. It is used to detect object(s) temperature within a sensing window and out-put a proportional voltage or current.
While it looks and operates just like an Expert™ photoelectric sensor, the T-GAGE detects the infrared light energy emitted by objects, instead of its own emitted light. The sensor uses a thermopile detector, made up of multiple infra-red-sensitive elements (thermocouples) to detect this infrared energy within its field of view (see Figure 2. Detection spot size versus distance from sensor on page 2).

Potential applications include:

• Hot part detection (baked goods, metals, bottles, rubber)
• Ejection verification of injection-molded parts
• Flame process verification
• Hot glue detection (packaging equipment, book binding, product assembly)
• Cold part detection (frozen foods, ice, dairy)
• Roller monitoring
  NOTE: The T-GAGE M18T sensor is not intended for absolute temperature measurement or for safety-re-lated fire detection use.

Sensing Field of View
The sensing range is determined by the sensor’s field of view (FOV), or viewing angle, combined with the size of the object(s) being detected (see Figure 2. Detection spot size versus distance from sensor on page 2). The sensor’s distance-to- spot size ratio (D:S ratio) is inversely related to the viewing angle; a sensor with a small viewing angle will have a large D:S ratio. The T-GAGE M18T sen-sors have D:S ratios of 6:1, 8:1 or 14:1. For a sensor with an 8:1 D:S ratio, the sensor’s spot size is a 1″ diameter circle at a distance of 8″; farther from the sensor face the spot size will be larger.

Spot Size (mm)

8:1| 13| 25| 38| 50| 63| 75| 88| 100| 113| 125
14:1| 7| 14| 21| 29| 36| 43| 50| 57| 64| 71

Figure 2. Detection spot size versus distance from sensor

Apparent Temperature
Two factors that have a large influence on apparent temperature are the object’s emissivity and whether or not the object fills the sensor’s field of view.

Object Emissivity:

A “blackbody” is a “perfect” emitter, with an emissivity of 1.0 at all temperatures and wavelengths. Most surfaces emit only a fraction of the amount of thermal energy that a blackbody would. Typical T-GAGE applications will be sensing objects with emissivities ranging from 0.5 to 0.95. Many references are available with tables of emissivity coefficients for common materials. In general, shiny unpainted metals have low emissivity, while non-glossy surfaces have high emissivity. Shiny surfaces: a mirror or shiny surface can redirect an object’s emitted energy to an undesired location, or even bring additional unintended thermal energy into the sensor’s field of view (see Application Note on page 6).

Object Size:

If the object being detected does not fill the sensor’s field of view, then the sensor will average the temperature of that object and whatever else is in the sensing field of view. For the sensor to collect the maximum amount of energy, the object should completely fill the sensor’s field of view. However, in some applications, when the object is too small, this may not be possi-ble. In such cases, if the object is hot enough, the thermal contrast may still be adequate to trigger the sensor’s output.

Alarm Output
The alarm output will activate when the analog output is at 10V or 20mA, depending on model (see Figure 3. Analog/Alarm outputs as a function of taught conditions on page 3).

Analog Output

The T-GAGE analog sensor can be programmed for either positive or negative output slope, based on the teach order (see Figure 3. Analog/Alarm outputs as a function of taught conditions on page 3). If the cold limit is taught first, the slope will be positive; if the hot limit is taught first, the slope will be negative. Banner’s scalable output automatically distrib-utes the output signal over the width of the programmed sensing window.

Sensor Programming

Two TEACH methods may be used to program the sensor:

• Teach individual minimum and maximum limits (Two-Point Static Teach), or
• Dynamic Teach for on-the-fly programming.

The sensor may be programmed either via its push button, or via a remote switch. Remote programming also may be used to disable the push button, preventing unauthorized personnel from adjusting the programming settings. To access this feature, connect a normally open switch between the sensor’s gray wire and dc common or connect the gray wire to a digital input (PLC).

NOTE: The impedance of the Remote Teach input is 3 kΩ.

Programming is accomplished by following the sequence of input pulses (see Teaching Limits Using Two-Point Static TEACH on page 4). The duration of each pulse (corresponding to a push button “click”), and the period between multiple pulses, are defined as “T”:

Status Indicators

TEACH Mode: Waiting for Span condition
ON Yellow| Run Mode: Alarm output is energized
TEACH Mode: Waiting for Null condition
Flashing Yellow| Dynamic TEACH active

Teaching Limits Using Two-Point Static TEACH

Two-Point TEACH is the traditional setup method, used when two conditions can be presented individually by the user. The sensor es-tablishes the Null (0V or 4mA) output condition with the first taught condition and the Span (10V or 20mA) output condition with the second taught condition, and it scales between these points.

General Notes on Programming

• The sensor will return to RUN mode if the first TEACH condition is not registered within 60 seconds
• After the first limit is taught, the sensor will remain in PROGRAM mode until the TEACH sequence is finished

Teaching Limits Using Dynamic TEACH

Dynamic TEACH is a method of setting the sensor’s limits while the application is active. Dynamic TEACH will sense the high and low temperature limits of the process and automatically set the analog range between these limits.
The output slope will remain in the direction of the most recently taught Two- Point Static TEACH or default to positive.

Changing Direction of Output Slope

The following procedure changes the direction of the analog output slope from negative to positive or from positive to negative. See Analog Output on page 3 for an explanation of the analog output slope.

Push Button Lockout
The push button lockout feature enables or disables the push button to prevent unauthorized adjustment of the program settings.

Installation Notes

Align the sensor toward the object to be detected. Visually align if possible, or use the alignment device accessory listed in Additional Accessories on page 9.

Specifications

• Temperature Measurement Range
  0º to 300º C (32º to 572º F) standard;
  custom ranges available

• Sensing Range
  Depends on object size and sensing field of view (see
  Sensing Field of View on page 2)

• Wavelength
  8 to 14 μm

• Distance to Spot Size (D:S) Ratio
  6:1, 8:1, or 14:1, depending on model

• Supply Voltage
  12 to 30V dc (10% maximum ripple)
  @ less than 35 mA (exclusive of load)

• Output Configuration
  Analog: 0-10V or 4-20 mA, depending on model
  Alarm: PNP (current sourcing)

• Output Protection
  Protected against short circuit conditions

• Output Ratings

  • Analog Voltage: 2.5 kΩ minimum load resistance
  • Analog Current: 1 kΩ max. @ 24V input; max. load resistance = [(Vcc – 4)/0.02]Ω
  • For current output (4-20mA models): Ideal results are achieved when the total load resistance R = [(Vin – 4)/0.02]Ω. Example, at Vin = 24 V dc, R ~= 1kΩ (1 watt)
  • Alarm: Off-state leakage: < 10 microamps; Saturation: < 1.2 V @ 10 mA and < 1.6V @ 100 mA

• Delay at Power-Up
  1.5 seconds

• Output Response Time
  75 ms (for a 95% step change)

• Repeatability
  ± 1% of measurement, or ± 1º C, whichever is greater

• Minimum Taught Differential
  10º C

• Linearity
  From 0º to 50º C: ±2ºC
  From 50º to 300º C: ±1ºC or ±1%, whichever is greater

• Adjustments
  TEACH-Mode programming

• Indicators
  One bicolor (Green/Red) status LED, one Yellow LED (see Status Indicators on page 4)

• Remote Teach Input
  Impedance: 3 kΩ minimum load resistance

• Construction

  • Threaded Barrel: 304 stainless steel
  • Push Button Housing: ABS/PC
  • Push Button: Santoprene
  • Lightpipes: Acrylic

• Operating Conditions
  Temperature: -20º to +70º C (-4º to 158º F)

• Environmental Rating
  Leakproof design is rated IEC IP67; NEMA 6

• Temperature Warm-Up Time
  5 minutes

• Certifications
  for voltage models (M18TU..) Current models (M18TI..) are pending CE

Application Note

Following are examples of materials with high and low emissivity. (Many more examples can be found in sources such as the Internet.)

Sensor-Friendly Materials (High Emissivity)

• Aluminum – anodized
• Asphalt
• Brick
• Carbon – lampblack or plate material
• Cardboard – corrugated or chipboard
• Concrete
• Glass – smooth, lead, or borosilicate (e.g., Pyrex®)
• Gypsum (including finished boards)
• Ice
• Iron and steel (except bright galvanized)
• Paper – most types, regardless of color
• Styrofoam® insulation
• Plastics
• Water
• Wood
• Rubber (e.g., tires)
• Aluminum – plain or highly polished
• Copper
• Galvanized iron
• Stainless steel
• Vapor-deposited materials

Dimensions

Hookups

NOTE: It is recommended that the shield wire be connected to earth ground or dc common. Shielded cordsets are recommended for all QD models.

Accessories

Quick-Disconnect Cables

Accessory Mounting Brackets

Additional Accessories

Banner Engineering Corp Limited Warranty

• Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product.
• THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (IN-CLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.
• This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPEN-SES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN
• CONTRACT OR WAR-RANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.
• Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp.

References

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