Ametek Crystal pressure 30 series Installation manual

Programming Instructions

For 30 Series Calibrators

30 Series

Contents

Overview.................................................................1

Introduction ..............................................................1

Communication........................................................2

30 Series Communication Format ..........................................2

Support ..................................................................4

Overview 1

30 Series Programming Instruction Manual

Overview

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INTRODUCTION

Thank you for choosing the 30 Series Calibrator from Crystal Engineering Corporation. When connected to a personal computer, using a standard micro

USB cable, your 30 Series can be customized through the use of our free software, CongM30, available for download from crystalengineering.net. Also

available for free download from our website are drivers for Labview®, a graphical programming language from National Instruments. The 30 Series can be

operated remotely, as if you were pressing the buttons. You can use a simple terminal program to send the commands, or you can incorporate them into your

own software program.

I/O Settings

Windows Certied drivers should be automatically downloaded from Microsoft and installed the rst time a 30 Series product is connected to a PC via the USB

port. (If not, the driver is available for download from our website.) This driver is compatible with Windows XP, Vista and 7, both 32 and 64 bit versions.

The 30 series will be assigned to a COM port. Should you need to change the default settings, they are as follows:

Baud Rate Data Bits Parity Stop Bits Flow Control

4800 8 none 1 none

Communication 2

30 Series Programming Instruction Manual

Communication

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30 SERIES COMMUNICATION FORMAT

All Model 30 series products communicate and are calibrated through the micro USB interface. The port can be used to collect both displayed and internal

data, and all front panel keys can be actuated with the exception of the (contrast)and (power)keys.

The interface contains optical isolation, so that there is no direct electrical connection between the internal circuits and the external micro USB interface.

This eliminates the possibility of ground loops, which may aect the accuracy of measurements. It also presents an electrically dead connection (versus live,

exposed pins) when the unit is used in areas requiring intrinsic safety.

The Model 30 series products respond to one or two byte commands.

Two byte commands are used to distinguish between P1 and P2, for the Zero and Units keys.

Command Table

Command (ASCII) Operand Description Response

Z “1” or “2” ASCII Zero / Tare Same as pressing P1 or P2 ZERO key

C (none) Continuous Data Collection See Data String Format Table

S (none) STOP collecting data n/a

V (none) Firmware version Transmits Firmware version

P “1” or “2” ASCII P1 or P2 Units key Same as pressing P1 or P2 UNITS key

m (none) Press mA key Same as pressing mA key

Data Strings

Once an ASCII “C” is sent, the unit will begin transmitting 31 byte, xed length ASCII strings. The data string is identied by the prex, has delimeters between

elds, and a line terminator that reects battery condition. The last character of the 31-byte string is one of three battery status characters. If the battery is

good the character is “>”, if the battery is low the character is “<”, and if the battery is dead (too low for accurate operation) the character is a question mark “?”.

Communication 3

30 Series Programming Instruction Manual

Data String Format Table

Prex (3 bytes) , Data , Data , Data ,

P(S)(R) S= Sensor number R= Range number ,8 bytes of direct ADC output ,8 bytes of displayed data ,8 bytes of internal oset/tare value *

mA(R) R= Range number ,8 bytes of direct ADC output ,8 bytes of displayed data n/a 18 bytes of ASCII spaces *

P(S)T S= Sensor number ,8 bytes of direct ADC output of sensor

temperature signal n/a 18 bytes of ASCII spaces *

Amb ,8 bytes of direct ADC output of sensor

temperature signal n/a 18 bytes of ASCII spaces *

BxC x= Zfor zero -or- x= Sfor span

C= ADC channel number n/a

27 bytes of ASCII spaces.

This is a background calibration of the

analog to digital converter - no data.

,= Delimiter

n/a = no delimiter is present for marked location in that string

*= Terminator: >or <or ?

>= good battery

<= low battery

?= expired battery (readings are not valid)

Model Ranges

The standard Model 33 range serial numbers 2262*-xxxxxx are:

LP Sensor HP Sensor

(Eight Ranges) (Three Ranges) (Five Ranges)

P11= inH2O P21= bar P21= kg/cm2

P12= mbar P22= kPa P22= bar

P13= kg/cm2P23= PSI P23= Mpa

P14= mmHg P24= kPa

P15=mmH2O P25= PSI

P16= kPa

P17= inHg

P18= PSI

Support 4

30 Series Programming Instruction Manual

Support

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Phone . . . . . . . . . . . . . . . . . . . . . . . . . . (805) 595-5477

Toll-Free . . . . . . . . . . . . . . . . . . . . . . . .(800) 444-1850

Fax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (805) 595-5466

Email . . . . . . . . . . . . . . . . . . . . . . . . . . . cr[email protected]

Web. . . . . . . . . . . . . . . . . . . . . . . . . . . . . crystalengineering.net

If calling, have ready the model number, serial number, date of purchase, and reason for return. You will receive instructions for returning the device to us.