# QUAD THERMOCOUPLE INPUT

## Fits Tiger 320 Series

Terminal Reference Junction.

On-board Reference Junction Sensor.

8-pin Input Connector.

Quad J or K Thermocouple.

On-board Digital Signal Processor.

Choice of type J or K thermocouples.

10Hz Averaged output.

Interface to Tiger Meter.

Crystal Controlled Line

Frequency Rejection.

50 / 60Hz line frequency rejection.

State-of-the-art Electromagnetic Noise

Suppression Circuitry.

Ensures signal integrity even in harsh EMC environments.

Multiple inputs processed with powerful signal conditioning.

Ideal for multi-temperature control systems, IST3 and IST4 monitor up to four individual thermocouple sensors at 10 Hz averaged output rate. A choice of industry J or K type thermocouples with an on-board temperature sensor for reference junction compensation provide a versatile interface for temperature measurement tasks.

Input Module

Order Code Suffix

Input Channels

Thermocouple Type

Input Sensitivity

Zero Drift

Span Drift

Non-linearity

Input Noise

Signal Processing Rate

Reference Junction

Hardware Module Specifications

Four independent channels, zero X-talk and 16-bit resolution.

Industry standard J or K type (software selectable).

0.08 V / count maximum. 40 nV / C typical. 5 ppm / C full scale maximum. 0.003% 5of full scale maximum.

160 nV p-p typical.

10 Hz averaged output rate on all channels.

On-board solid state sensor referenced thermal connection to terminal block socket. Resolution better that 0.1 C.

Output Rate

Sensor Selection

Line Frequency Rejection

Broken Thermocouple

Software Module Specifications

Fixed 10 Hz averaged per channel.

Choice of J or K, software selectable.

50/60 Hz, software selectable. [OVER] on display indicates broken thermocouple.

Software senses a broken thermocouple and causes the display to flash [OVER]. Note, only seen if that display is the current display. Otherwise, it can be checked through the view mode.

IST3-4 Data Sheet (NZ362)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 1

### Connector Pinouts

TC1

TC2

TC3

TC4

### Smart Setup Registers

Figure 1 IST3/IST4 Quad Thermocouple Smart Input Module

Thermocouple signals, TC1, TC2, TC3, and TC4, are then individually softw are selected for the four input channels. Either signal can be selected f or CH1 via Code 2, CH2 via Code 4, CH3 via Code 5, and CH4 via Code 6.

Note: Once selected, the thermocouple type is the same f or all four channels.

Note: The same thermocouple signal can be selected f or two or more channels.

Input Signal 1 (TC1)

Input Signal 2 (TC2)

Input Signal 3 (TC3)

Input Signal 4 (TC4)

Figure 2 IST3/IST4 Smar t Setup Registers Operational Flow Diagram

Reference junction sensor

thermally bonded to the connector block.

Reference

Junction

Sensor

Quad Input

Analog to

Digital

Convertor

16-bit

Resolution

Microcontroller

Page 2

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

IST3-4 Data Sheet (NZ362)

Figure 3 IST3/IST4 Quad Thermocouple Functional Schematic Diagram

### Standard Setup Quick Start Guide

This section describes the procedures to enter the controllers code structure and configure the input module for the following standard settings:

60 Hz Line Frequency (suitable for areas operating on 60 Hz power supplies).

J Type Thermocouple.

Thermocouple TC1 selected for channel 1 (CH1).

All other configuration settings are described in the following pages.

### Step 1

Step 2

Pass the Brightness

Mode and enter

Code 2

### From Step 5

Step 6

Return to Code 2 and select the

thermocouple for CH1

Example

Example

Step 8

Save settings and

return to Code 2

Step 4

Enter the Smart

Register 1 (SMt1)

Setup Mode

### Step

Step 9

Exit Code 2 and return to the operational

display

Programming Tip

The f ollowing procedure uses a DI-50 displa y.

The readings sho wn may differ for other displa y versions.

IST3-4 Data Sheet (NZ362)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 3

### Programming Procedures

The f ollowing prog ramming procedures co ver all the steps required to configure smar t input module IST3/IST4. Steps 1 to 5 describe how to select the line frequency and the thermocouple type through smart register 1 (SMT1).

Steps 7 to 12 describe how to select a specific ther mocouple from the output registers f or channels 1, 2, 3, or 4 as required.

Press the

and

buttons at the same time to enter the main programming mode.

Press the

button three times to enter Code 2. Set Code 2 to [X77].

This setting enters the smart register 1 code setup menu.

Note: The output registers in the 3rd digit are specific to the Quad Thermocouple input module. These registers vary for each different smart input module.

Press the

button.

This men u pro vides settings unique to smart register 1 of input module IST3/4.

Using the

1st digit and the thermocouple type in the 3rd digit.

buttons, select either 50 or 60 Hz line frequency rejection in the

2nd digit settings are not rele vant and should be left at z ero (0).

Note: 10 Hz is the average output for all four thermocouple inputs.

Operational Temperature Range

0 C to 700 C

0 C to 1100 C

J Type Thermocouple

K Type Thermocouple

Approximate contin uous w orking temper ature r ange of measur ing junction. Not related to wire diameters and conducted insulation.

Refer IEC 584.2, 1982 (BS EN 60584.2, 1993) Inter nal Standards for Thermocouple Characteristics.

5 Press the

button. The display returns to [Cod_2] [X77].

6 Using the

button, reset the 3rd digit to z ero [X70] to leave the smart register 1 menu.

Note: Leaving the 3rd digit as 7 means the display constantly cycles between [Cod_2] and [SMt1].

Press the

and

buttons at the same time to retur n to the operational display.

### Select a Channel

Select a thermocouple output from the output register map of the required c hannel

### Channel 1

Press the

and

buttons at the same time again to re-enter the main prog ramming mode,

then press the

button three times to enter Code 2.

Page 4

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

IST3-4 Data Sheet (NZ362)

Set Code 2 to [X7X]. Select the required processing rate for CH1 in the 1st digit and the required register map settings in the 3rd digit.

2nd digit settings are not rele vant and should be left at z ero (0).

## CH1

### Channel 2

Note: The output register map is different for each smart input module type.

Set Code 4 to [0X0]. Select the required register map settings f or CH2 in the 2nd digit.

## CH2

### Channel 3

Enter Code 5 and select the required register map settings f or CH3 in the 3rd digit.

## CH3

### Channel 4

Note: The output register map is different for each smart input module type.

Enter Code 6 and select the required register map settings f or CH4 in the 3rd digit.

## CH4

Press the

button to save the settings.

Press the

time to return to the operational display.

buttons at the same

and

IST3-4 Data Sheet (NZ362)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 5

### Calibration

As the calibration procedure requires a calibr ation source that can output stab le V signals, calibration of the four channels is nor mally done in the factory prior to shipping.

Calibrating 4 Channels for K Type Thermocouple If user calibration is required, the f ollowing procedure should be f ollowed. It is assumed that the user has a thermocouple calibration source available. When the controller is switched on, allow a few minutes warmup time to let the ref erence junction stabilize to the connector ter minal block temperature.

1 Setup Smart Register 1 (SMT1)

See Page 4 and carry out Steps 1 to 7 to select the required line frequency and thermocouple type.

2 Connect to the Calibrated Source

Connect a standard K type ther mocouple plug to the calibration source.

3 Connect to the Input Module

Connect the standard K type ther mocouple cable to the rele vant pins on the input module of the thermocouple input to be calibrated.

Thermocouple

Calibration

Source

K Type

Thermocouple

Plug

K Type

Thermocouple

Wire

IST3/IST4

Terminal Block

4 Set the Low Setting

a) Set the calibration source to 0 C.

b) Enter [CAL] [111] and set to [ZEro] setting.

5 Set the High Setting

Set the calibration source to 100 C.

Set to [SPAn] setting to 100.0.

6 Repeat Steps

Repeat Steps 2 to 4 f or all required ther mocouples and channels.

See 2-point Calibration Mode Example on Page 7 for a step-by-step calibration procedure.

Note:

One thermocouple can be assigned to one or more c hannels (e.g. TC1 assigned to CH1 to CH4), but each channel can accept only one thermocouple input.

Page 6

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

IST3-4 Data Sheet (NZ362)

From Step 6

T HERE STSTARART HERE 2-point Calibration

Mode Example

Step 1

Enter the

brightness

mode

Step 2

Pass the brightness

mode and the enter calibration mode

Step 4

Enter calibration

mode [111] for 2-point calibration of CH1

### Step 5

LOW

Signal

Step 6

Set reading for zero load into meter and enter span mode

Example

HIGH

Signal

Step 7

7.1. Adjust display to desired reading for

span input

Example

Step 8

Save zero and span settings and re-enter

calibration mode

Step 9

Select the no function calibration mode [000]

Step 10

Save calibration mode

[000] setting and enter Code 1

Step 11

Exit Code 1 and return to the operational display

### To Step 7

IST3-4 Data Sheet (NZ362)

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

Page 7

### Customer Configuration Settings:

1st Digit

2nd Digit 3rd Digit

## CH1

## CH2

1st Digit

2nd Digit 3rd Digit

1st Digit

2nd Digit 3rd Digit

1st Digit

2nd Digit 3rd Digit

## CH3

## CH4

1st Digit

2nd Digit 3rd Digit

For product details visit www.texmate.com

Tel: 1-760-598-9899 USA 1-800-839-6283 Thats 1-800-TEXMATE

Page 8

Texmate, Inc. Tel. (760) 598-9899 www.texmate.com

IST3-4 Data Sheet (NZ362)

### About TexMate

Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.