Banner M18TIP8Q, M18TUP8Q, M18TUP8, M18TUP6EQ, M18TUP14 User Manual

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
M18TUP8Q	5-pin Euro-style integral QD
					0 to 10V dc ana-
M18TUP6E	5-wire, 2 m (6.5') shielded cable		Enclosed Plastic face
		6:1	(for food industry use)		log, plus PNP
M18TUP6EQ	5-pin, Euro-style integral QD
					Alarm
M18TUP14	5-wire, 2 m (6.5') shielded cable	14:1	Germanium lens
M18TUP14Q	5-pin, Euro-style integral QD			12 to 30V dc
M18TIP8	5-wire, 2 m (6.5') shielded cable	8:1	Integrated lens
M18TIP8Q	5-pin Euro-style integral QD
					4 - 20 mA ana-
M18TIP6E	5-wire, 2 m (6.5') shielded cable		Enclosed Plastic face
		6:1	(for food industry use)		log, plus PNP
M18TIP6EQ	5-pin, Euro-style integral QD
					Alarm
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 serious 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 energized or de-energized sensor output condition.

P/N 123698_web	5/14/2012
Rev. A

T-GAGE™ M18T Series Infrared Temperature Sensors

Overview

The T-GAGE analog sensor is a passive, non-contacting, temperature-based device. It is used to detect object(s) temperature within a sensing window and output 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.

	Figure 1. Sensor Features
1	Power/Teach LED
2	Alarm Output LED
3	TEACH Push Button

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 sensors 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 (see table)

Distance (mm)
200	400	600	800	1000

Sensor D:S					Distance from Sensor Face Versus Spot Size
Ratio
	100	200	300	400		500	600	700	800	900	1000	Distance (mm)
6:1	17	33	50	67		83	100	117	133	150	167
8:1	13	25	38	50		63	75	88	100	113	125	Spot Size (mm)
14:1	7	14	21	29		36	43	50	57	64	71

Figure 2. Detection spot size versus distance from sensor

2	www.bannerengineering.com - tel: [phone]	P/N 123698_web
		Rev. A

T-GAGE™ M18T Series Infrared Temperature Sensors

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 possible. 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 distributes the output signal over the width of the programmed sensing window.

	Alarm	Alarm		Second
	Output	Output		Taught
10	ON	ON	20	Condition
Analog Output (V dc)		Positive Slope	Analog Output (mA)
	Negative Slope
0			4	First
				Taught
	Cold	Hot		Condition
	Condition	Condition

Positive Slope: Cold condition taught first

Negative Slope: Hot condition taught first

Figure 3. Analog/Alarm outputs as a function of taught conditions

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”:

0.04 seconds < T < 0.8 seconds

P/N 123698_web	www.bannerengineering.com - tel: [phone]	3
Rev. A