Meatest M641 User manual

M641 Programmable RTD Simulator

Operation manual

M641 Programmable RTD Simulator MEATEST

3 Revision 23, FW 2.000 Operation manual

Content

1. BASIC INFORMATION....................................................................................................................... 5

2. PREPARATION FOR USE .................................................................................................................. 5

2.1. INSPECTING PACKAGE CONTENTS, SELECTING THE INSTALLATION LOCATION ..................................... 5

2.2. POWER ON ...................................................................................................................................... 5

2.3. WAR -UP TI E .............................................................................................................................. 6

2.4. SAFETY PRECAUTIONS ..................................................................................................................... 6

3. DESCRIPTION ..................................................................................................................................... 7

3.1. FRONT PANEL ................................................................................................................................. 7

3.2. REAR PANEL ................................................................................................................................... 9

4. OPERATION .......................................................................................................................................10

4.1. CONNECTION AND DISCONNECTION OF OUTPUT TER INALS .............................................................10

4.2. WIRES CONNECTION .......................................................................................................................10

4.3. SETTING THE FUNCTION .................................................................................................................10

4.4. SETTING THE VALUE OF OUTPUT SIGNAL .........................................................................................17

4.5. PARA ETER SETTINGS (SETTINGS ENU) ........................................................................................18

4.6. PRESET ENU ................................................................................................................................18

4.7. AIN ENU ...................................................................................................................................19

4.8. CALIBRATION ODE ......................................................................................................................21

5. PERFORMANCE VERIFICATION TEST ........................................................................................24

6. REMOTE CONTROL .........................................................................................................................25

6.1. RS232 INTERFACE .........................................................................................................................25

6.2. GPIB INTERFACE (OPTION) ............................................................................................................26

6.3. LAN INTERFACE (OPTION) .............................................................................................................27

6.4. USB INTERFACE (OPTION) ..............................................................................................................28

6.5. CO AND SYNTAX .......................................................................................................................29

6.6. SCPI CO AND TREE ...................................................................................................................30

6.7. STANDARD STATUS DATA STRUCTURES .........................................................................................32

6.8. SCPI STANDARD CO ANDS ........................................................................................................34

6.9. SCPI CO ANDS ..........................................................................................................................38

6.10. SCPI ERROR CODES .......................................................................................................................63

6.11. CO PATIBLE CO ANDS ..............................................................................................................64

6.12. DE O PROGRA ............................................................................................................................65

7. MAINTENANCE .................................................................................................................................66

7.1. FUSE REPLACING ............................................................................................................................66

7.2. EXTERNAL SURFACE CLEANING ......................................................................................................66

8. MODULE 19” (VERSION M641 VXX1X)..........................................................................................66

9. TECHNICAL DATA ............................................................................................................................67

10. ORDERING INFORMATION – OPTIONS .......................................................................................69

CERTIFICATE OF CONFORMITY ...........................................................................................................70

MEATEST M641 Programmable RTD Simulator

Operation manual 4

Figures

Figure 1 Starting Screen ......................................................................................................... 6

Figure 2 Front panel ............................................................................................................... 7

Figure 3 Display..................................................................................................................... 7

Figure 4 Rear panel ................................................................................................................ 9

Figure 5 Resistance screen ................................................................................................... 10

Figure 6 Platinum screen ...................................................................................................... 11

Figure 7 Nickel screen ......................................................................................................... 11

Figure 8 User function screen ............................................................................................... 12

Figure 9 User function list .................................................................................................... 12

Figure 10 New user function ................................................................................................ 13

Figure 11 User function point editing ................................................................................... 13

Figure 12 User function edit ................................................................................................. 14

Figure 13 Timing screen ...................................................................................................... 14

Figure 14 Time sequence list ................................................................................................ 15

Figure 15 New sequence ...................................................................................................... 15

Figure 16 Timing sequence point editing .............................................................................. 16

Figure 17 Timing sequence edit ........................................................................................... 16

Figure 18 Numeric value entry ............................................................................................. 17

Figure 19 Settings menu ....................................................................................................... 18

Figure 20 Preset menu .......................................................................................................... 18

Figure 21 ain menu ........................................................................................................... 19

Figure 22 Password entry ..................................................................................................... 21

Figure 23 Calibration point screen ........................................................................................ 23

Figure 24 RS232 9 pin D-SUB ALE connector ................................................................. 25

Figure 25 IEEE488 connector .............................................................................................. 26

Figure 26 LAN connection 1 ................................................................................................ 27

Figure 27 LAN connection 2 ................................................................................................ 27

Figure 28 USB connector ..................................................................................................... 28

Figure 29 Status register overview ....................................................................................... 32

Figure 30 odule 19" rack, front panel ................................................................................ 66

Tables

Table 1 641 Calibration points .......................................................................................... 22

Table 2 Verification - allowed deviations ............................................................................. 24

Table 3 RS232 cable connection .......................................................................................... 26

Table 4 OUTPut command structure .................................................................................... 41

Table 5 Keyboard codes ....................................................................................................... 60

Table 6 SCPI error codes...................................................................................................... 63

Table 7 641 Resistance accuracy....................................................................................... 68

Table 8 641 Pt simulation accuracy ................................................................................... 68

Table 9 641 Ni simulation accuracy .................................................................................. 68

Table 10 641 Typical frequency response ......................................................................... 68

M641 Programmable RTD Simulator MEATEST

5 Operation manual

1. Basic information

Programmable RTD Simulator 641 is suitable for automated simulation of different resistance

sensors (temperature, pressure, position, force …). Internal design eliminates “zero resistance effect”

which is typical for most resistance decades.

Resistance value is created via appropriate combination of physical resistors. RTD simulator is

equipped with built-in function of direct simulation of most frequent temperature Pt and Ni sensors.

Low thermal voltage relays and stable resistors are used as main parts of the RTD Simulator. Actual

set values are displayed on high resolution TFT display. 641 is sophisticated instrument with its own

re-calibration procedure. The procedure enables to correct any deviation in resistance without any

mechanical adjustment.

Instrument is especially suitable for automatic testing procedures. RS232 line (optionally

IEEE488, USB and Ethernet bus) is used for connecting RTD simulator to the computer.

2. Preparation for use

2.1. Inspecting package contents, selecting the installation location

Basic package includes the following items:

 RTD Simulator 641

 RS232 cable

 CD with demo program

 User’s manual

 Test report

The instrument must be powered by 230/115 V – 50/60 Hz mains. Before powering on the

instruments, place it on a level surface. If the instrument was stored out of range of reference

temperatures, let it stabilize for one hour.

2.2. Power on

 Before connecting the instrument to the mains, check the position of the mains voltage selector

located at the rear panel.

 Plug one end of the power cord into the connector located at the rear panel and connect the other

end of the power cord into a wall outlet.

 Switch on the mains switch located at the rear panel. Display is lit.

MEATEST M641 Programmable RTD Simulator

Operation manual 6

Figure 1 Starting Screen

 The instrument performs internal hardware checks for app. 5 seconds.

 After the tests conclude, the instrument is set to “Startup” preset. This preset is adjustable

however, the instrument will always start with OPEN terminals.

2.3. Warm-up time

The instrument works after it is switched on and the initial checks complete. Specified

parameters are only guaranteed after the instrument warms up for 10 minutes.

2.4. Safety precautions

The instrument has been designed according to EN 61010-1:2011. Safety is ensured by the

design and by the use of specific component types.

The manufacturer is not liable for the damage caused by modification of the construction or

replacement of parts with non-original ones.

Safety symbols used on the equipment

Warning, reference to the documentation

M641 Programmable RTD Simulator MEATEST

7 Operation manual

3. Description

3.1. ront panel

Figure 2 Front panel

On the front panel there are located all main control keys, display and output terminals.

1 Output terminals

Four wire output terminals. easuring (evaluation) circuit can be connected by 2, 3 or 4 wires. Both

sides (red and grey) are floating up to 500Vpk against the case (PE).

2 Ground terminal

Central ground terminal (protective earth) connected to the metal case of the instrument. It is

recommended to connect it to the “grey” output terminals if connected meter is not grounded.

3 Display

Figure 3 Display

1 3 4 5 6 8

7 2

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Operation manual 8

The display is divided into four sections:

A. Information line

 Selected function (RESISTANCE, PLATINU , …)

 Time

B. Main area

This section displays the set-up values of generated signals and the data related to the simulator

status. The section includes the following types of data:

1. Auxiliary parameters

This section displays auxiliary parameters of actually selected function:

 Temperature standard (PT385, PT3916, …)

 Switching mode (FAST, VIA OPEN, …)

 R0 resistance

2. Main alue

There is displayed main value of selected function with the unit. There is displayed also actual

position of cursor ▼▲ if the parameter is in edit mode. Position of cursor can be changed

using keys ◄, ► and parameter can be changed using keys ▲,▼.

3. Output state

There is displayed resistance value connected to the output terminals.

C. Specification

This section displays specification and limits relating to the main value:

1. Specification

This section displays specification of the main value.

2. Maximum oltage

This section displays maximum allowed voltage for the main value.

3. Maximum current

This section displays maximum allowed current for the main value.

D. Softkey labels

The functions of these keys change during operation (depends on selected function and actual

display mode).

4 Softkeys

There are four keys next to the display with variable function. The functions of these keys change

during operation (depends on selected function and actual display mode). These four softkeys appear

in main function window:

Function – Function selection. See chapter 4.3

Settings – Function-specific parameter settings. See chapter 4.5

Preset – One click setup of all function parameters. See chapter 4.6

Menu – General settings and parameters of all functions. See chapter 4.7

M641 Programmable RTD Simulator MEATEST

9 Operation manual

5 OPER (Operate key)

OPER key connects / disconnects selected value to the output terminals. Connected output terminals

are indicated by the lit LED in the key.

6 SHORT (Short key)

Active SHORT key (LED in the key is ON) replaces the main value with the short circuit. Also the

short circuit must be connected to the output terminals by the OPER key.

7 Cursor keys

Using these keys, the cursor can be controlled within allowed limits on the display. The keyboard

includes two buttons (◄, ►) which allow the cursor to be moved to the left or right. When a list is

displayed, (◄, ►) buttons skip through pages. Buttons (▲,▼) allow the user to increase or decrease

the number at the cursor position or move across items in a list.

The central SELECT key is used to select value you want to change (like TAB key).

8 Numeric keyboard

The keyboard allows the entry of numeric values on the display. ENTER button is used to confirm the

selection. CANCEL button can be used to cancel the entry.

Colors on display

Common rules are used for applied color of labels and values.

- Red color - displayed value is measured by the instrument. This color isn’t used in all versions.

- Blue color - parameters or values, which can be set-up or modified directly from front panel

keyboard or via ain menu.

- Black color - fix values, labels, notes, parameters which cannot be modified and for other fix text

with general information purpose.

eaning of softkeys is shown on the right side of display. If there is no description next to the softkey,

the softkey is not active in selected function.

3.2. Rear panel

There are located power cord socket, power line fuse, power line voltage selector 115/230V,

interface connectors RS232 and optionally LAN, USB and IEEE488 on the rear panel.

Figure 4 Rear panel

MEATEST M641 Programmable RTD Simulator

Operation manual 10

4. Operation

4.1. Connection and disconnection of output terminals

Set value is connected (disconnected) to the output terminals after pressing OPER key.

Connected output terminals are indicated by the lit LED in the key.

Disconnected output terminals can be used for “Open terminals” simulation. “Short circuit” is

simulated after pressing SHORT key. Active SHORT key (LED in the key is ON) replaces the main

value with the short circuit. Also the short circuit must be connected to the output terminals by the

OPER key.

4.2. Wires connection

Output resistance is available on R output terminals. Available is 2, 3 and 4-wire connection.

Both sides (red and grey) are floating up to 500Vpk against the case (PE).

Ground terminal is connected to the metal case and to the protective earth (PE).

4.3. Setting the function

Function can be changed after pressing „Function“ softkey. New function is selected using

cursor keys ▲,▼ or display softkeys. Selection must be confirmed by pressing SELECT key or „OK“

softkey.

Device supports following functions:

Resistance

Offers direct setting of exact resistance value.

Figure 5 Resistance screen

Editable parameters:

Resistance value: 10 Ω … 300 kΩ

Switching mode: FAST, S OOTH, VIA OPEN, VIA SHORT

This manual suits for next models

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