Aalborg DPM Operating Manual

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Technical Data SheetNo.

TD-DPM-

Date of Issue:

6HSWHPEHU

OPERATING MANUAL

Aalborg

Intelligent Digital Mass Flow Meters

£

DPM

Aalborg® is a registered trademark of Aalborg Instruments & Controls.

NOTE: Aalborg reserves the right to change designsand dimensions at its sole discretion at any time without notice. For certified dimensions, please contact Aalborg.

TABLE OF CONTENTS

1. Unpacking the DPM Mass Flow Meter.......................................

1.1 Inspect Package for External Damage..................................

1.2 Unpack the Mass Flow Meter................................................

1.3 Returning Material for Repair................................................

2. Installation.................................................................................

2.1 Safety Instructions..................................................................

2.2 Primary Gas Connections......................................................

3. Electrical Connections...............................................................

3.1 Power Supply Connections....................................................

3.2 Output Signals Connections..................................................

3.3 Digital Communication Interface Connections.....................

4. Principle of Operation..............................................................1

5. Specifications............................................................................1

5.1 CE Compliance....................................................................1

5.2 DPM Accessories.................................................................1

6. Operating Instructions...............................................................1

6.1 Preparation and Power Up..................................................1

6.2 Swamping Condition............................................................1

6.3 Meter Process Information (PI) Screens..............................1

6.4 Local User Interface Menu Structure...................................

6.4.1 Parameter Entry..............................................................2

6.4.2 Submenu “Change PP Password”..................................2

6.4.3 Submenu “Device Information”.......................................2

6.4.4 Submenu “Units of Measure”..........................................2

6.4.5 Submenu “User-Defined Units”.......................................2

6.4.6 Submenu “Select Gas”...................................................2

6.4.7 Submenu “User-Defined Mixture”...................................3

6.4.8 Submenu “Gas Flow Alarm”...........................................3

6.4.9 Submenu “Gas Pressure Alarm”....................................3

6.4.10 Submenu “Gas Temperature Alarm”............................4

6.4.11 Totalizers Settings........................................................

6.4.12 Submenu “Pulse Output”..............................................4

6.4.13 General Settings...........................................................4

6.4.13.1 STP/NTP Conditions................................................4

6.4.13.2 Display and Process Information (PI) Screens........4

6.4.13.3 Submenu “Communication Port Settings”...............

4

6.4.13.4 Submenu “Modbus Interface” (optional)..................5

6.4.13.5 Relay Assignment....................................................5

6.4.13.6 Analog Output Configuration...................................5

6.4.13.7 Status LED Settings................................................5

6.4.13.8 Signal Conditioner Settings.....................................5

6.4.14 Sensor Zero Calibration................................................5

6.4.14.1 DP Sensor Zero Calibration.....................................5

6.4.14.2 Start AP Auto Tare...................................................5

6.4.15 Submenu “Alarms and Diagnostic”...............................

6.4.15.1 Alarm Event Register...............................................6

6.4.15.2 Diagnostic Events Register......................................6

6.4.15.3 Sensors ADC Reading (read only)..........................6

6.4.15.4 Temperature Sensors Diagnostic (read only)..........6

6.4.15.5 Analog Output & PO Queue Diagnostic (read only)

6.4.15.6 Reference Voltage & DSP Calculation Diagnostic

6.5 Multi-Functional Push-Button Operation.............................

7 Maintenance.............................................................................7

7.1 General................................................................................7

7.2 Cleaning................................................................................7

8 Recalibration.............................................................................7

9 RS-235/RS-485 Software Interface Commands.......................7

9.1 General................................................................................7

9.2 Commands Structure...........................................................7

10 Troubleshooting......................................................................9

10.1 Common Conditions..........................................................9

10.2 Troubleshooting Guide......................................................

10.3 Technical Assistance.......................................................

Appendix I: Component Diagram..............................................

Appendix II: Dimensional Drawings...........................................

Appendix III: Warranty................................................................

Appendix IV: Index of Figures....................................................

Appendix V: Index of Tables......................................................10

.....

9

UNPACKING THE DPM MASS FLOW METER

1.1

Your DPM Mass Flow Meterwas carefully packed in a sturdy cardboard carton, with anti-static cushioning materials to withstand shipping shock. Upon receipt, inspect the package for possible external damage. If the unopened package is damaged, contact the shipping companyimmediately to make a report.

1.2

Open the carto n carefully from th e top and inspect for any sig n of concealed shippi ng damage. If there is any damage, in addition to contacting the shipping company, forward a copy of any damage reportto yourdistributoror to Aalborgdirectly.

When unpackin g the instrument, make sur e that you have all the items indi cated on Packing List. Promptly report any discrepancy.

1.3

Contact the customer service representative at your distributor, or at Aalborgif you purchased your Mass Flow Meter directly, to request a

(RAN). Equipment returned without a RAN will not be accepted.

right to charge a fee to the customer for equipment returned under warranty claims if the instruments are found, when examined and tested, to be free of warrantied defects.

Shipping charges are borne by the customer. Meters returned collect will

It is mandatory that any equipment returned for service be purged of any hazardous contents including, but not limited to, toxic, infectious, corrosive or radioactive material. No work shall be performed on a returned product unless the customer submits a fully executed and signed SAFETY CERTIFICATE. Contact the Service Manager at your distributor or at Aalborg to obtain this form prior to returning the product.

Inspect Package for External Damage

Unpack the Mass Flow Meter

Returning Material for Repair

Return Authorization Number

the

Aalborg reserves the

not

be accepted.

2.1

INSTALLATION

Safety Instructions

CAUTION

responsibilities of the manufacturer shall be voided if usersfail to follow

CAUTION:

use in life cause personal injury. Customers employing this device for use insuch applications do so at their own risk andagree tobe fully responsible for damages resulting from improper use or sale.

: Aalborg warranties and all

LIFE SUPPORT APPLICATIONS: TheDPM is not designed for

support applications where any malfunction of the device may

other direct or implied

any

CAUTION:

may be damaged by improper handling. When adjusting or servicing the

device, always wear a grounded wrist strap to prevent inadvertent damage to

the integral solid-state circuitry.

Some of the IC devices used in the DPM are static-sensitive and

2.2

The DFM Mass Flow Meter will may be introduced into the instrument. If gases are contaminated, prevent theintroduction of impediments to thesensor.

For more information, contact your distributor or Aalborg.

The DPMMassFlowMetercanbemountedinanyposition.Itisnotrequiredtomaintain straight runs of pip e upstream or downstream of the meter. It is preferable to install the meter in a stable moisture, and drafts.

Prior to connecting gas lines, inspect all parts of the piping system, including ferrules and other fittings, for dust or other contaminants. Do not use pipe grease or sealant on process connections as they can contaminate narrow laminar flow elements that may cause permanent damage to the meter.

When connecting the gas system to be monitored, be sure to observe the direction of gas flow asindicated byt he arrow onthefr ont of themeter.

Insert tubing into the compression fittings until the ends of the properly sized tubing sit flush against the shoulders of the fittings. Compression fittings are to be tightened 1¼ turns according to the manufacturer's instructions. Avoid overtightening seriously damage the compression fitting.

Primary Gas Connections

not

operate with liquids. Only clean, non

theymustbe filteredto

CAUTION:

specifically cleaned and prepared for such an application.

DPM meters should not be used for monitoring oxygen gas unless

environment, free of frequent and sudden temperature changes, high

corrosive gases

which may

Pressure Requirements

Maximum operating line(common mode)pressure for "BREEZE" Low Differential Pressure DPM04/14/24/34/44/54 series flow meters is 50PSIG (3.44 Bar). If the installation line pressure is more than 50 PSIG(3.44 Bar), a pressure regulator must be installed upstream of the flow meter to bring pressure down to 50PSIG (3.44 Bar).

Maximum operating line (common mode)pressure for DPM07/17/37/47/57/67/77 series flow meters is 120PSIG (8.3 Bar). If the installation line pressure is more than 120 PSIG (8.3 Bar), a pressure regulator must be installed upstream of the flow meter to bring pressure down to 120 PSIG (8.3 Bar)

CAUTION:

maximum pressure in the gas line must not exceed 120PSIG (8.3bar). Applying pressure above 120 PSIG (8.3 bar) will cause permanent damage to the differential pressure sensor.

For DPM07/17/37/47/57/67/77 series flow meters, the

CAUTION:

ser ies flow meters, the maximum pressure in the gas line must not exceed 50PSIG (3.44bar). Applying pressure above 50 PSIG (3.44 bar) will cause

permanent damage to the differential pressure sensor.

CAUTION: Do not apply upstream – downstream differential pressure exceeding 9.75 PSID to "BREEZE" Low Differ DPM04/14/24/34/44/54 differential pressures may cause permanent damage to the product. Normally high common mode pressure (within 50 PSIG) will not damage the differential pressure sensor, but pressure transients (momentary pressure variations) on upstream or downstream ports can result in permanent sensor damage to the product. Avoid instantaneous application of high pressure from quick on/off solenoid valves upstream or downstream of the meter.

CAUTION: Do not apply upstream – downstream differential pressure

exceeding 12 PSID to DPM07/17/37/47/57 series flow meters. Exposure to higher differential pressures may cause permanent damage to the product. Normally high common mode pressure (within 120 PSIG) will not damage the differential pressure sensor, but pressure transients (momentary pressure variations) on upstream or downstream ports can result in permanent sensor damage to the product. Avoid instantaneous application of high pressure from quick on/off solenoid valves upstream or downstream of the meter.

CAUTION:

meet the DPM meter’s pressure and temperature ratings. A margin of safety should be provided if spikes and surges existin the process. Proper pressurerelief valvesandburstplatesshouldbeinstalledin high applications.

For DPM04/14/24/34/44/54 "BREEZE"Low Differential Pressure

ential Pressure

series flow meters. Exposure to higher

The usershall install the instrument onlyin processlines that

pressure

CAUTION:

tube and the narrow flow channels in the laminar flow element, the user should install the instrument in process lines that have clean gases. Upstream particulate filters with maximum particulate size 20P are recommended for all applications.

DPM transducer ports are equipped with 10-32 female thread (DPM04/07), 1/8" NPT female thread (DPM14/17/37), 1/4" NPT female thread DPM24/34/47, 1/2" NPT female

thread (DPM44/57) and 3/4" NPT female thread (DPM54/67/77). DPM24/34/47, 1/2" NPT female thread (DPM44/57) and 3/4" NPT female thread (DPM54/67/77).

To avoid obstructions and contamination in the sensor

ELECTRICAL CONNECTIONS

DPM is equipp ed with an 8 pin -Min iDIN power,anal og/relay out put, communication

Figure 1

TABLE I: 8-PIN DESIGNATIONS AND NOTES

PIN FUNCTION

interface connector.

for a Pin Diagram

1 Solid State SPST Relay NO

(normally open) contact #1

2 Solid State SPST Relay NO

(normally open) contact #2

RS-232 RX / RS-485 (–) Communication Interface input

4 Analog (0-5Vdc,0-10Vdc,4-20

mA) Output reference (-)

5 RS-232 TX / RS-485(+)

Communication Interface input

6 Analog (0-5Vdc, 0-10Vdc or

4-20 mA) Output (+)

7 Power supply, positive (+)

Powersupply, common (-) RS-232 Signal Ground

Table I

explains the pin designations. See

NOTE

Do not exceed SSR maximum voltage 48 AC peak/DC and maximum load current 400 mA.

Also accessible via Audio jack connector (

see Figures 2 & 25)

Common (return) for pin 6 (0-5Vdc or 0-10 Vdc or 4-20 mA)

Also accessible via Audio jack connector

see Figures 2 & 25).

(

Output. Do not apply external voltage

current source. Be sure to observe

or any recommended load

impedance.

Power input 9 – 26 Vdc.

Power input and RS-232 communication common.

CAUTION:

FIGURE 1: DPM 8-PIN Mini-DIN CONNECTOR CONFIGURATION

4-20 mA analogoutput requires at least 12 Vdcpower.

CAUTION: Generally, "Mini-DIN" Connector numbering patterns are standardized. There are, however, some connectors with nonconforming patterns, so the numbering sequence on your mating connector may or may not coincide with that shown in our pin configuration above. It is imperative that you match the appropriate wires in accordance with the correct sequence regardless of the particular numbers displayed on the mating connector.

3.1

The AC to DC power supply requirements for DPM transducers are 9 to 26 Vdc, with maximum load current at least 100 mA (unipolar power supply), and maximum ripple below 150 mV P-P.

Power can be applied to the DPM meter either through the power jack (see Figure ) or the 8-pin Mini-DIN connector (see Figure 1).



Power Supply Connections

CAUTION:

as this may damage the instrument.

DC Power (+) --------------- pin 7 of the 8-pin Mini-DIN connector

DC Power (-) --------------- pin 8 of the 8-pin Mini-DIN connector

CAUTION:

damage the DPM and/or cause faulty operation.

CAUTION:

any cables or wires to or from the system.

NOTE:

time-lag) r eset fuse. If a shorti ng condition or pol arity reversal occ urs, the fusewill cut power to the flow transducercircuit: disconnectthe power to the unit, correct the faulty condition, and reconnect the power. The fuse will reset once the faulty condition has been corrected.

Never apply power simultaneously from both connectors,

Never apply power voltage above 26Vdc. Doing so may

Make sure power is OFF when connecting or disconnecting

The (+)and (-) power inputs are each protected by a 300mA M(medium

3.2

Output Signals Connections

CAUTION:

exceed the rated values shown in the specifications (see Section 5). Failure to do so might cause damage to this device. Be sure to check if the wiring and the polarity of the power supply are correct before turning the power ON. Wiring error may cause damage or faulty operation.

When connecting the load to the output terminals, do not

DPM series Mass Flow Meters are equipped with calibrated 0-5Vdc, 0-10Vdc or 4-20 mA output signals. This linear output signal represents 0-100% of the flow meter’s full scale range. The user may select the desired analog interface type using a local OLED/Joystick interface or via digital communication interface.

CAUTION:

isolated, sourcing type). Do not connect an external voltage source (for example, current loop powered systems) to the output signals.

For 0-5 VDC, 0-10 VDC or 4-20 mA output signal connection:

External load Plus (+) --------------------------- pin 6 of the 8-pin Mini-DIN connector External load Minus (-)--------------------------- pin 4 of the 8-pin Mini-DIN connector

CAUTION:

check actual analog output interface configuration. Connecting low impedance (< 5K damage to or faulty operation of the electronics circuitry.

NOTE:



CAUTION:

always check actual analog output interface configuration. Connecting high impedance (> 500 may cause non linear or faulty operation of the electronics circuitry.

Toeliminate the possibility of noise interference, it is recommended that you use a separate cable entry for the DC power, digital communication interface, and analog output interface signal lines.

The 4-20 mA current loop output is self-powered (non-

When connecting the load to the output terminals, always

) loads to the 0-5Vdc or 0-10 Vdc output may cause

4-20 mA analog output requires at least 12 Vdc power input.

When connecting the load to the output terminals,

) loads to the 4-20 mA output

3.3

The digital interface operates via RS-232 or RS-485 (user-selected) and provides access to all applicable internal configuration parameters and data.

Digital Communication Interface Connections

CAUTION: Before proceeding with communication interface

connection, verify the meter’s actual communication interface type. For devices with OLED display, the interface type will be briefly (for about 2 seconds) displayed on the banner screen when power is applied. If your meter does not have a display, the communication interface type can be identified by briefly pressing the multi-function button and

(

see

monitoring status LED response

Section 6.5).

Communication Settings for RS-232/RS-485 communication interface

The default baud rate is 9600 baud (user-selected; see Section 5, Specifications).

Stop bit: Data bits: Parity: Flow Control:

RS-232 Communication Interface Connection

Crossover connection must be established:

HOST PC RS-232 RX Meter (RS-232 TX) (pin 2 on the host PC DB9 connector)------pin 3 (Ring) of the 3-pin stereo jack connector (TX+)

HOST PC RS-232 TX Meter (RS-232 RX) (pin 3 on the host PC DB9 connector)------ pin 2 (Tip) of the 3-pin stereo jack connector (RX-)

HOST PC RS-232 SIGNAL GND Meter (Digital GND) (pin 5 on the host PC DB9 connector)------pin 1 (Sleeve) of the 3-pin stereo jack connector

Each DPM ordered with RS-232 interface option is supplied with default crossover - foot long communication cable (AALBORG P/N: CBL-A232) DB9 female to stereo 3.5 mm Plug.

If custom length cable is required, it can be assembled using the connection diagram shown in Figure 2.

....................

1 8 None None

RS-485 Communication Interface Connection

The RS-485 converter/adapter must be configured for: multidrop, 2-wire, half duplex mode (see Figure 3). The transmitter circuit must be enabled by TD or RTS (depending on which is available on the converter/adapter). Settings for the receiver circuit should follow the selection made for the transmitter circuit in order to eliminate echo.

RS-485 A line T(-) or R(-) ............. pin 2 on 3-pin Audio-connector, middle

section or "tip" DPM (RX-), (WHITE wire)

RS-485 B line T(+) or R(+) ........... pin 3 on 3-pins Audio-connector, the

"ring" section DPM (TX+), (RED wire)

RS-485 GND (if available) ............ pin 1 on 3-pin Audio-connector, the

“sleeve” section DPM (GND), (Shield wire)

Each DPM ordered with RS-485 interface option is supplied with a default 3-foot length of communication cable (AALBORG P/N: CBL-A485) Stereo

3.5 mm plug to stripped wires.

If custom length cable is required, it can be assembled using the connection diagram shown in Figure 3:

IIGGUURRE3:DDPPMRR

When the DPM device is set as the last device on the long RS-485 bus segment,

the 120 and (-) terminals close (< 6 feet) to this device.

bus termination resistor must be connected between the RS-485 (+)

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NOTE:



Wermination resistor between the RS-485 (+) and (-) pins. On instruments with a local display and joystick interface, the 120ȍ termination resistor can be activated (enabled) using General Settings / Communication Port / RS-485 Termination menu selection. By default, the instrument is shipped from the factory with the RS-485 Termination mode set to Disabled.

The DPM instrument offers an integrated switchable 120ȍ

RRIINNCCIIPPLLEOOFFOOPPEERRATTIIOONN

The DPM series flow meters integrate precision a differential pressure sensor which accurately measures pressure drop across the special restriction flow element (RFE). The geometry of the RFE is designed to ensure laminar flow in each branch within the entire range of operation of the DPM instrument. According to principles of fluid dynamics, the volumetric flow rates of a gas in the laminar flow conduits are proportional to differential pressure across the restriction flow element. In addition, precision absolute pressure and temperature sensor readings are used to calculate mass flow rate using ideal gas laws.

The DPM flow meter supports multi-gas functionality which allows users on site to select the desired measured gas using local Display/Joystick interface or digital communication interface. See Tables X - XVIII which provide lists of supported gases.

The DPM flow meter can display flow rate in 43 different mass flow or 15 different volumetric flow engineering units. Flow meter parameters and functions can be programmed locally via optional OLED/Joystick interface or remotely via the RS232/RS-485 interface or optional Modbus RTU interface. DPM flow meters support various functions including two programmable flow totalizers; low, high or range flow; temperature and pressure alarms; automatic zero adjustment (activated via local or digital communication interface); programmable solid state relay (SSR); programmable 0-5 Vdc, 0-10 Vdc or 4-20 mA analog outputs; userprogrammable pulse output (via SSR); and self-diagnostic alarms. Optional local OLED readout with adjustaEOH brightness level provides mass and volumetric flow rate, total volume reading in currently selected engineering units, and

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FLOW MEDIUM:

clean gases,

CALIBRATIONS:

°C]) unless otherwise requested orstated.

ENVIRONMENTAL (PER IEC 664):

FLOW ACCURACY (INCLUDING LINEARITY):

temperature and pressure.

REPEATABILITY:

FLOW TEMPERATURE COEFFICIENT:

FLOW PRESSURE COEFFICIENT:

FLOW RESPONSE TIME:

SSPPEECCIIFFIICCA

Please note that DPM Mass Flow Meters are designed to work only with

never

TTIIOONN

any corrosive gas and

Performed at standard conditions (14.7 psia [101.4 kPa] and 70 °F [21.1

+0.15% of full scale.

default 10 ms (user-adjusted).

never

Installation Level II; Pollution Degree II.

0.05% of full scale/ °C or less.

0.01% of full scale/psi (6.895 kPa) or less.

any liquid.

±(0.5% RD + 0.2% FS) at calibration

INSTRUMENT WARM-UP TIME:

< 5 seconds.

MAXIMUM MEASURABLE FLOW RANGE:

OPERATION RANGE/TURNDOWN RATIO:

MASS REFERENCE CONDITIONS (STP): 70°f & 14.696 PSIA(other references

available on request).

MAXIMUM INTERNAL GAS PRESSURE (STATIC):

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0$;,080,167$17$1(286',))(5(17,$/35(6685($&5266,1/(7$1'287/(7



PROOF PRESSURE:

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TEMPERATURE:

MOUNTING ATTITUDE SENSITIVITY:

RELATIVE GAS HUMIDITY RANGE:

INGRESS PROTECTION:

2873876,*1$/6

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IP40.

Linear 0-5 (3000 min. load impedance);

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TRANSDUCERINPUTPOWER:

noise. Power consumption: 100 mAmaximum.

133% Full Scale.

0.5% to 100% Full Scale / 200:1.

OPERATING

None.

0 to 100% (Non-Condensing).

9 to26Vdc,150mVmaximumpeaktopeakoutput

Circuit boards have built-in polarity reversal protection, and a 300mA resettablefuse provides power input protection.

DIGITAL OUTPUT SIGNALS:Standard RS-232 or RS-485 (user-selected). Optional Modbus over isolated RS-485 transceiver

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CAUTION:

corrosion resistance of mass flow meters as pertains to different flow media reacting with any components of the meters. It is solely the customer’s responsibility to select the model best suited for a particular gas, based on the fluid contacting (wetted) materials offered in the different models.

Aalborg® makes no expressed or implied guarantees of

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:: DPM04/07

10-32

female

thread, DPM14/17/37

female thread, DPM24/34/47 1/4" NPT female thread , DPM44/57 1/2" NPT

female thread, DPM54/67/77 3/4" NPT female thread for user-supplied fittings.

DISPLAY: Optional 128 x 64 pixels graphic yellow OLED with Esc button and Joystick interface. Simultaneously displays: Mass Flow, Totalizer Volume, Pressure and Temperature or Mass Flow, Volumetric Flow, Pressure and Temperature (user-selectable screens).

5..11

CCEECommpp

lliiaannccee

EMCCompliancewith2004/108/ECas amended. CISPR11 Emission Standard: EN61000-6-3, Group 1, Class A Immunity Standard: EN61000-6-1, IEC EN 61000-4-2, IEC EN 61000-4-3

TABLE II: DPM FLOW RANGES

MODEL

NO.

DPM07 DPM17 DPM37

DPM47 DPM57 DPM67 DPM77

DPM04 DPM14 DPM24

DPM34 DPM44 DPM54

FULL SCALE MASS

FLOW RATE

STANDARD PRESSURE DROP [AIR]

0.5 to 50 sml/min 51 sml/min to 20 sl/min

21 sl/min to 50 sl/min

51 sl/min to 100 sl/min

101 sl/min to 250 sl/min

251 sl/min 500 sl/min

501 sL/min to 1000 sL/min

DPM (BREEZETM) LOW PRESSURE DROP [AIR]

0.5 smL/min to 20 smL/min 21 smL/min to 2 sL/min

2.1 sL/min to 10 sL/min

10.1 sL/min to 20 sL/min

20.1 sL/min to 40 sL/min

40.1 sL/min to 100 sL/min

PRESSURE DROP

AT FULL SCALE

FLOW (PSID)

1.0

2.0

2.5

5.5

7.0

0.06

0.07

0.085

0.3

0.15

0.25

PROCESS

CONNECTION

10-32 Female Thread

1/8" NPT Female 1/8" NPT Female

1/4" NPT Female 1/2" NPT Female 3/4" NPT Female

3/4" NPT Female

10-32 Female Thread

1/8" NPT Female

1/4" NPT Female

1/4" NPT Female 1/2" NPT Female 3/4" NPT Female

5..11

DPM Accessories

MODEL

NO.

DPM07 / 04

DPM17 / 14

D PM37 / 34

DPM24 / 34 / 47

DPM44 / 57

DPM54 / 67

DPM54 / 77

FITTING

CODE

F1C5

F2C5

F2C2

F2C4

F4C4

F4C6

F8C6

1210-1-12-316

TABLE III: DPM ACCESSORY'S

DESCRIPTION

FITTINGS

10-32 Thread, 1/8" Tubing, Compression, 316 ss.

10-32 Thread, 1/8" Tubing, Compression, 316 ss.Nickel Plated Brass

1/8" NPT Thread, 1/8" tubing, Compression, 316 ss.

1/8" NPT Thread, 1/4" tubing, Compression, 316 ss.

1/4" NPT Thread, 1/4" tubing, Compression, 316 ss.

1/4" NPT Thread, 3/8" tubing, Compression, 316 ss.

1/2" NPT Thread, 3/8" tubing, Compression, 316 ss.

3/4" NPT Thread 3/4" tubing, Compression, 300 series ss.

MODEL NO.

PS-GFM-110NA-2

PS-GFM-110NA-4 PS-GFM-230EU-2

PS-GFM-230EU-4

PS-GFM-240UK-2

POWER SUPPLIES

DESCRIPTI ON

Power Supply, 110 V / 12 Vdc / North America.

Power Supply, 110 V / 24 Vdc / North America. Power Supply, 220 V / 12 Vdc / Europe. Power Supply, 220 V / 24Vdc / Europe.

Power Supply 240 V / 12 Vdc / United Kingdom.

5..22

DDPPMAAcccce

CBL-A232

CBL-A485

CBL-8MINIDIN-3

CBL-8MINIDIN-12

USB-RS-232

USB-RS-485

ECS803-1

TDG1026-8C

MOD27T

JMOD4S-1

TRD815BL-2

TRD815BL-10

TRD815BL-25

TRD815BL-10

TRD815BL-25

ssssoorriiees

CABLES

Communication Cable for DPM with RS-232 Interface  FT

3.5mm

stereo audio connector with 3-wire to 9-pin female

D-connector

Communication Cable for DPM with RS-485 Interface 3 FT

3.5m m

Shielded cable 8-pin Min-DIN with stripped ends 3 feet long

Shielded cable 8-pin Min-DIN with stripped ends 12 feet long

COMMUNICATION PORT ACCESSORIES

USB to RS-232 converter

USB to RS-485 converter

MODBUS INTERFACE ACCESSORIES

RJ45 shielded Y-adapter (Passive TAP).

RJ45 Modular Coupler.

RJ45 Line Terminator (100 ȍ0.25 W).

RJ45 Splitter fully shielded (5xRJ45, 1 input 4 outputs).

Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 2.0 feet.

Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 10.0 feet.

Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 25.0 feet.

Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 10.0 feet.

Category 5E Patch Twisted Pair Cable, RJ45 / RJ45, Blue 25.0 feet

(included with each DPM).

stereo audio connector with 3-wire to stripped ends.

MOODDEELL

DPM 07/17

DPM 47

DPM 57

DPM 67

DPM 77

DPM04

DPM14 DPM24

DPM34

DPM44

DPM54

TABLE IV: PRESSURE DROPS

FLLOOWRRAATTEE

[ssttdll iitteerrss//mmiinn

STANDARD PRESSURE DROP [ AIR]

up to 10 703

100 1757 2.5 17.236

200 500

1000

DPM (BR EEZE) LOW PRESSURE DROP [AIR]

0.02

2 0

4 0

100

]

[

mmmm

30 40 1406 2.0 13.789 50 1406

60 1757

105.5

AAXXIIMMUUMM

H2O

] [

703 1.0 6.894

1406 2.0 13.789

TBD TBD TBD TBD

TBD TBD TBD

42.2

49.2

59.8

210.9

175.8

PPRREESSSSUURREEDDRROOPP

ppssiidd

] [kkPPaa]]

1.0

2.0 13.789

2.5

TBD TBD

0.06

0.07

0.085

0.3

0.15

0.25

6.894

17.236

0.413

0.483

0.586

2.068

1.034

1.724

TABLE V: APPROXIMATE WEIGHTS

MOODDEELL WEEIIGGHH

DPM04/07/14/17 flow meter

DPM34/37/44/47 flow meter

DPM54/57 flow meter

DPM67 flow meter

DPM77 flow meter

6..11

Now that the Mass Flow Meter has been correctly installed and thoroughly testedas describedin turnedon,theBannerScreenisshownfor 2 seconds (see Figure 4), then device firmware and communication interface type and hexadecimal address value on the second line, Communication Port baud rate on the third line, andModbushardwarestatusand decimal addressvalueonthefourthline (see Subsequently, the actual process information (PI) is displayed.

OOPPEERRA

PPrreeppaarraattiioonaanndPPoo

TTIINNGGIINNSSTTRRUUCC

Section 2

, makesuretheflowsourceisOFF.Initially, afterthepower

EEPROM database revisions will be displayed on the first line,

0.85 lbs. (0.4 kg) 2.55 lbs. (1.2 kg)

1.15 lbs (0.52 kg) 3.0 lbs (1.36 kg)

3.5lbs (1.6kg) 5.1lbs (2.32kg)

4.5lbs (2.04kg)

5.2lbs (2.35kg)

wweerUU

Figure 5

TTIIOONN

). These areshownforanother

SHHIIPPPPIINNGWWEEIIGGHH

6.7lbs (3.04kg)

8.75lbs (3.97kg)

is first

2 seconds.

Fiigguurre

44::

DPPMMfirrsst BBaa

FFww:AA000011TTbbll::AA000011 CCOOMM::RRSS BBaauuddRRaattee MM

ooddBBuuss:

22332AAdddd::1111

:99660000

YAA

dddd::1111

nnnneerr SSccrreeee

Fiigguurre55::



The main DPM flow meter screen shows current instrument Pressure, Temperature, Mass Flow, and Totalizer Volume readings in previously selected units of measure.



DPPMMFF

ii rr

mmwwaarr

eeaa

nndCCoo

mmmm

uunniiccaattiioon

Absolute Pressing

Reading

PSIA

0.00

Current Mass Flow

Rate Reading

22.67

T1: 14726.0 Sml

Totalizer #1 Reading

Figure 6: DPM Initial Process Information

NOTE:

the model and device configuration.

NOTE:

the status LED will emit a constant GREEN light (normal operation, ready to measure).

Actual content of the OLED screen may vary depending on

5 seconds after the initial powering of the DPM flow meter,

IInntteerffaaccee

27.7 Sml min

IInnff

oormationSSccrreeee

Temperature

Reading

Current Unit of

Measure for Mass Flo w

Totalizer#1 Units of

Measure

6..22

If a flow of more than 133% the nominal maximum flow rate of the Mass Flow Meter is taking place (displayed mass flow reading is flashing), a condition known as "swamping" may occur. Readings of a "swamped" meter cannot be assumed to be either accurate or linear. Flow must be restored to below 133% of maximum meter range. Once flow rates are lowered to within calibrated range, the swamping condition will end.

SSwwaa

mmppiinn

ggCCoonnddiittiioo

6..33

MMeetteerPPrrooccee

sssIInn

ffoorrmm

aattiioon((PPII))ss

ccrr

eeenns

Based on meter configuration, different parameters may be displayed in the Process Information (PI) screen by moving the control joystick (see Figure

7) Up or Down (DN). Process Information screens can be configured to be static or dynamic (see Section 6.4.13.2 “Display and Process Information (PI) Screens”). Using PI Screen Mask settings, the user can enable (unmask) or disable (mask) up to 6 different process information combinations.

LEFT

Press here for Enter command

RIGHT

DOWN

FIGURE 7: JOYSTICK

In the Static Mode, moving the joystick Up pages through the PI screens in the forward direction, while moving the joystick DN pages through the PI screens in the reverse direction. When the last PI screen is reached, the firmware “wraps around” and scrolls to the initial PI screen once again.

In the Dynamic Display Mode, the firmware initiates automatic screen sequencing with user-adjusted screen Cycle Time (see Section 6.4.13.2 “Display and Process Information (PI) Screens”). When the last PI screen is reached, the firmware “wraps around” and scrolls to the initial PI screen once again.

PSIA

222..7777

0..000

11::144772266..00Sm

255..7

PI Screen #1 (Pressure, Temperature,

Mass Flow Rate, Totalizer #1)

Smmll miinn

Com. Interface type and device address

Analog Interface Type

Flow, Pressure,

Temperature

Alarms Status

Totalizers Status

Alarm Events Status

PSIA

222..7777

255..5 Smmll

0..000

22::0..00Sm

222..7777

PSIA

miinn

244..5 Smmll

0..000

::0..00mll//mmiin

miinn

AAIIR FFSS:00..22000000LL//mmiin RRSS

22332

--55VV

ddccMMooddbbuuss::

PPOOWWEERR

::1199..66HHrr AAllmm::DDDDD RReell::D TT

11::DD TT22::EE PPOO::DD

::00000000DDEE

::0000000

PI Screen #2 (Pressure, Temperature,

Mass Flow Rate, Totalizer #2)

PI Screen #3 (Pressure, Temperature,

Mass Flow Rate, Volumetric Flow Rate)

PI Screen #4 (Selected Gas, Instrument Full Scale Range, Interface Information)

Currently Selected Gas Name Instrument Full Scale Range

Modbus interface H/W status (Y, N)

PI Screen #5 (Events Notification screen)

Time elapsed from the power up event Relay assignment Pulse Output Status Diagnostic Events Status Register

PI Screen #6 (Instrument Diagnostic)

DP Sensor Raw Counts

AP Sensor Raw Counts

DP Sensor reading mBar

Temperature Sensor

Raw Counts

FIGURE 8: DPM PROCESS INFORMATION SCREENS

::11664433553399001

AA::--

44110066337

DDPP

:00..00005

T:226688335

00..00000011

2244..8833

88998

DP Sensor Temperature Raw Counts AP Sensor Temperatur e Raw Counts DP sensor reading in PSID

Temperature Sensor Reading (deg.C)

6..44

LLooccaalUUsseerrIInntteerrffaacc

The diagram in Figure 13 gives a general overview of the standard top-level display menu structure (when running firmware version A001). The Esc push-button is used to toggle between the Process Mode (PI screens) and the Setup menus, and to return to upper menu level.

In order to move through the menu items, the user must move the joystick UP and DN. When the last item in the menu is reached, the menu “wraps around” and scrolls back to the beginning of the menu items list. Similarly, when the first menu item is highlighted and the joystick is moved UP, the menu “wraps around” and scrolls down to the end of the menu item’s list. In order to select the desired menu item, the user must press the joystick down (this action is equivalent to the Enter button). To go back to upper menu level, the user must press the Esc button.

All process configuration parameter settings are password-protected. In order to access or change them, Program Protection (PP) should be disabled. Each time the device is powered up, the Program Protection is enabled automatically. By default, the device is shipped from the factory with the Program Protection (PP) password set to Zero (PP Disabled). If the PP password is set to Zero (Disabled), entering a PP password is not required. A subsequent screen will appear and the Program Protection menu item will be selected:

Fiigguurre

eMMee

nnuuSS

ttrruuccttuurr

PRR

OOGG

RRAAMMPPRROOTTEECCTTIIOONN

NNAABBLLEE

DIISSAABBLLEE

uusshUUpp,,DDn

settttiinngg,,EEnn

seettttiinngg,EEssc

9: Program Protection Screen

oocchhaanngg

t ttooSSaavv

ttooEExxii

ee ee tt

Moving the joystick DN to select the Disabled option and then pushing the joystick (ENT) to save settings will disable program protection.

If the PP password is set to any value more than Zero, the firmware will prompt with “Enter Program Protection Password” (see Figure 10).

Enntteerr PPrr

ooggrraamPPrrootteeccttiioonn

Paasssswwoorrdd::

uusshUUpp,,DDn seettttiinngg,EEnn

seettttiinngg,EEssc

Figure 10: Program Protection Password Screen

The user must enter up to 3 digits for the program protection code, in order to be able to access password protected menus.

oocchhaanngg

t ttooSSaavv

ttooEExxii

ee ee tt

NOTE:



Program Protection (PP) password set to Zero (PP Disabled).

Once the correct password is entered, the Program Protection is turned off until the unit is powered up again.

By default, the device is shipped from the factory with the

6..44..11PPaarraammeetteerEEnnttrr

There are two methods of data entry:

x Direct numerical entry. x Tabular Input from a menu.

If the menu with direct numerical entry is selected, move the joystick UP or DN to increase or decrease digit value between 0-9. Move the joystick RIGHT or LEFT to move the cursor to another digit position. When the desired value is entered, use joystick equivalent of an ENT button to accept (to be saved in the EEPROM) the new value



NOTE:

acceptability. If data is not acceptable, it is rejected and a message is generated to indicate that the new data has not been accepted.

If the menu with tabular entry is selected, the available menu options can be set using the joystick UP and DN positions and are accepted by pressing the joystick equivalent of an ENT button.

6..44..22

In order to get access to “Change Program Protection (PP) Password” menu, Program Protection must be disabled. If PP password is set to Zero (Disabled), entering PP Password is not required and PP can be disabled from “Program Protection” menu (see Figure 9). If PP Password is set to any value more than Zero, the firmware will prompt with “Enter Program Protection Password” (see Figure 10). The user must enter a program protection code (up to 3 digits). If the PP password is lost or forgotten, contact the factory or your distributor.

During data entry, the input values are checked for

SSuu

bbmmeennu““CChhaannggePPPPPPaasssswwoorrdd

”

Once the “Change PP Password” menu is selected, the following screen will appear:

OOlld

PPPPPPaasssswwoorrdd:

NNeew

PPPPPPaasssswwoorrdd:

EEnntteer OOlldPPPPPPaasssswwoorrdd

Figure 11: Change PP Password Screen

In order to protect device configuration parameters when changing the PP password, the old PP password must first be entered.

Once old and ne w passwords are ent ered, the firmwa re will prompt wit h a confirmation

message (see

Figure 12: PP Password Change Confirmation Screen

Figure 12

) that thenew password hasbeen saved:

Neeww

PPPPPPaasssswwoorrdd

ssbb

eeee

nnssaavveed

PP PPaasssswwoorrddiissCChhaannggeed

..44..33SSuu

This submenu contains information about the device’s main configuration parameters. These items are informational only, not password-protected, and cannot be changed (read only).

6..44..44

Use the “Units of Measure" Menu to navigate to Measuring Units settings for Mass Flow, Volumetric Flow, Pressure, and Temperature readings. This option allows configuration of the flow meter with the desired units of measurement. These are global settings and determine what appears on all Process Information screens and in all data log records. Units should be selected to meet your particular metering needs. A total of 44 different mass-based engineering units (Standard, Normal and True Mass) are supported (see Table VI). A total of 15 different volumetric flow rate units are supported (see Table VII).

Supported Pressure units of measure are listed in Table VIII, and Supported Temperature units of measure are listed in Table IX.

bbmmeennu““DDeevviicceIInnffoorrmm

SSuu

bbmmeennu““UUnniitt

ssooff

aattiioonn””

MMeeaassuurree””

TABLE VI: LIST OF SUPPORTED MASS FLOW UNITS OF MEASURE

USER DEFINED

44 USER U

Number

1 2 3 4 5 6 7 8

9 10 Sm3/min Sm3 11 Sm3/hr Sm3 12 Sm3/day Sm3 13 Sf3/sec Sf3 14 Sf3/min Sf3 15 Sf3/hr Sf3 16 Sf3/day Sf3

17 gr/sec gr 18 gr/min gr 19 gr/hr gr 20 gr/day gr 21 kg/min kg 22 kg/hr kg 23 kg/day kg 24 lb/min lb 25 lb/hr lb 26 lb/day lb 27 28 oz/min

29 NuL/min NuL 30 NmL/sec NmL 31 NmL/min NmL 32 NmL/hr NmL 33

34 NL/min 35 NL/hr 36 NL/day 37 Nm3/min Nm3 38 Nm3/hr Nm3 39 Nm3/day Nm3 40 Nf3/sec Nf3 41 Nf3/min Nf3 42 Nf3/hr Nf3 43 Nf3/day Nf3

Mass Flow Rate

Units

%FS SuL/min SmL/sec SmL SmL/min SmL

SmL/hr SmL

SL/sec SL SL/min

SL/hr

SL/day SL Liter per day

oz/sec oz

NL/sec NL

Totalizer Volume Units

STANDARD

TRUE MASS

NORMAL

Description

SuL

SL Liter per minute SL Liter per hour

NL Liter per minute NL Liter per hour NL Liter per day

Percent of Full Scale

Microliters per minute

Milliliter per second

Milliliters per minute

Milliliter per hour

Liter per second

Cubic meter per minute

Cubic meter per hour

Cubic meter per day Cubic feet per second Cubic feet per minute

Cubic feet per hour

Cubic feet per day

Grams per second Grams per minute

Grams per hour

Grams per day

Kilograms per minute

Kilograms per hour

Kilograms per day

Pounds per minute

Pounds per hour

Pounds per day

Ounce per second

Ounce per minute

Microliters per minute

Milliliter per second

Milliliters per minute

Milliliter per hour

Liter per second

Cubic meter per minute

Cubic meter per hour

Cubic meter per day Cubic feet per second Cubic feet per minute

Cubic feet per hour

Cubic feet per day

serDefine

TABLE VII: LIST OF SUPPORTED VOLUMETRIC FLOW UNITS OF MEASURE

Number

1 2 3 4 5 6 7 8

9 10 m3/min m3 11 m3/hr m3 12 m3/day m3 13 f3/sec f3 14 f3/min f3 15 f3/hr f3 16 f3/day f3

Number

1 2 3 4 5 6 7 8

9 10 inHgA inHg 11 mmHgA mmHg 12 13 14 TorrA torr Torr 15

Flow Rate Units

%FS

uL/min uL mL/sec mL mL/min mL

mL/hr mL

L/sec L/min

L/hr

L/day

TABLE VIII: LIST OF SUPPORTED ABSOLUTE PRESSURE UNITS OF MEASURE

Pressure Units Name Short Name

PSIA barA barA

mbarA mbar Millibar

hPaA hPaA

kPaA kPaA

MPaA MPaA

atm atm Atmosphere g/cm2A gcm2 kg/cmA kgc2

cmH2OA

inH2OA

%FS %FS

Totalizer Volume Units

L L L L

psiA

Gram-force per square centimeter

Kilogram-force per square centimeter

cmH2

inH2

Pound per square inch

,QFKRIPHUFXU\>Û&@

Millimeter RIPHUFXU\>Û&@

&HQWLPHWHURIZDWHU>Û&@

,QFKRIZDWHU>Û&@

Percent of Full Scale

Description

Percent of Full Scale Microliters per minute

Milliliter per second

Milliliters per minute

Milliliter per hour

Liter per second Liter per minute

Liter per hour

Liter per day

Cubic meter per minute

Cubic meter per hour

Cubic meter per day Cubic feet per second Cubic feet per minute

Cubic feet per hour

Cubic feet per day

Description

bar

Hecto Pascal

Kilo Pascal

Mega Pascal

Number

1 2 3 4

TABLE IX: LIST OF SUPPORTED TEMPERATURE UNITS OF MEASURE

Temperature Units Label

Û) degree Fahrenheit Û& degree Celsius

Û5

Description

Kelvin

degree Rankine



NOTE:

may be based on the units selected. Once Flow Unit of Measure is changed, the Totalizer’s Unit of Measure will be automatically updated.

Program the Measuring Units first because subsequent menus

6..44..55““SSuu

In addition to conventional flow units, user-defined flow engineering units may be selected. Use the “Engineering Units and K-Factor” menu to navigate to the “User-Defined Units” menu option. This option enables userdefined configuration of any engineering unit required for process measurement.

The following three parameters are available for this function:

x UD Unit volume K-Factor (defined in Liters)UD Unit time base

x UD Unit use density (units with or without density support)

Before using the User-Defined Unit, be sure the proper conversion factor of the new unit, with respect to one liter, is set. The default entry is 1.00 Liter. Also, proper time-based values for User-Defined Units must be set.

Figure 13 explains by diagram the various upper level display menus.

bbmmeennuuUUsseerr--DDee

(defined in Seconds)

fifinneedUUnniittss”

Program Protaction (PP)

Change PP Password

Device Information

Units of Measure

Alarm Settings

Totalizers Settings

General

Settings

Select Gas

***** Main Menu *****

Alarm Event Menu

Diagnostic Events

Sensors ADC Reading

Temperature Sensors

AnalogOut & POQueue

Miscellaneous Param

Sensor Zero Calibr.

Tot

izer #1

Tot

izer #2

Pul

se Output

Gas Flow Alarm

Gas Pressure Alarm

Gas Temperature Alarm

Mass Flow

Volumetric Flow

Pressure

Temperature

User Defined Unit

Device ID & FS Flow

Analog/Com Interface

Firmware/EE Version

Flow Alarm Settings

Pressure Alarm Set.

Temp Alarm Settings

Totalizer#1 Settings

Totalizer#2 Settings

Pulse Outputs & LEDs

General Settings

Standard Temperature

Standard Pressure

Normal Temperature

Normal Pressure

Display Oper. Mode

Screen Cy

cle Ti

PI Screens Config.

OLED

Bright

nes

Screen Saver

Mode

OLED SS Time Out

OLED SS Brightness

Flow Rate Prec

ision

Baud Rate Settings

Dev

. ModBus Address

ModBus Com. Parity

ModBus Com. StopBit

Disabled

Low F. Alarm

High F. Alarm

F. Range H - L

Low P. Alarm

High P.

Alarm

P. Range H - L

Low T. Alarm

High T. Alarm

T. Range H - L

Tot

alizer #1 Event

Totali

zer #2 Event

Puls

e Output

Alarm Events

Diagnostic Events

Manual On

Totalizer #1 Mode

Tot#1 Flow Start

Tot#1 Action Vol.

Tot#1 PowerOn Delay

Tot#1 Auto Reset

Tot#1 AutoRes Delay

Reset Totalizer #1

Tot#1 DP Precision

Totalizer #2 Mode

Tot#2 Flow Start

Tot#2 Action Vol.

Tot#2 PowerOn Delay

Tot#2 Auto Reset

Tot#2 AutoRels Delay

Reset Totalizer #2

Tot#2 DP Precision

PulseOutput Mode

Pulse Flow Start

[Unit]/Pulse

Pulse Active Time

STP/NTP Units Cond

Display & PI Screens

Communication P

ort

ModBus Interface

Relay Assignment

Analog Output

Status LED Settings

Signal Conditioner

UD Unit K-Factor

UD Unit Time Base

UD Unit Use Density

Pressure Alarm Mode

Low Pressure Alarm

High Pressure Alarm

Pressure Alarm Delay

Pressure Alarm Latch

PA Power Up Delay

low Damping

Flow NLEF Mode

Pressure Damping

Pressure NLEF Mode

LCD Flow Average

Gas Temp. Damping

LCD Flow Dead Band

Recent Gases

Standard Gases

Bioreactor Gases

Breathing Gases

Chromatography Gases

Fuel Gases

Laser Gases

Concen

trat

tack Gases

Welding Gases

Use Defined Mixture

Alarm & Diagnostic

larm Events Status

larm Events Mask Reg.

larm Events

Latch Reg.

Reset Alarm Events Reg.

Diag.

Events Status

Diag.

Events Mask

Reg.

Diag.

Events Latch Reg.

Reset Diag. Events Reg.

Start Auto Zero Now

Start AP Auto Tare

ewZeroParameters

Default Events

F. Alarm & Tot Events

Alarm Ev

ent

Diagnostic Events

Main Com. Interface

Modbus Interface

Analog Output Mode

Analog Output Cal.

Analog Output Test

0-5 Vdc

0-10 Vdc

4-20 mA

Temp. Alarm Mode

Low Temp. Alarm

High Temp. Alarm

Temp. Alarm Delay

TA Power Up Delay

Temp. Alarm Latch

Flow Alarm Mode

Low Flow Alarm

High Flow Alarm

Flow Alarm Delay

Flow Alarm Latch

FA Power Up Delay

UART Tranceiv Mode

Baud Rate Settings

RS-485 Bus Address

RS-485 Termination

See Table V,,I

See Table V,

See Table I;

See Table V,,

Figure 13 DPM Upper Levels Menu Structure



6..44..66

The currently active gas can be selected by the user via OLED/joystick or digital communication interface. The gas data are allocated in different gas groups (see “Recent Gases” group keeps up to 16 recently selected gases. The detailed list of the gases for each group is provided in Tables X through XVIII, beginning on the following page.

For example, to select Nitrogen, the user should navigate to “Select Gas” then highlight “Nitrogen” and press the joystick equivalent of an

SSuu

bbmmeennu""SSeelleecctGGaass""

Recent Gases Standard Gases Bioreactor Gases Breathing Gases Chromatograpy Gases Fuel Gases Laser Gases O2 Concentrator Stack Gases Welding Gases User Defined Mixture

Figure 14: Selecting Gas Group

Figure 14

Ent

button.

below). The

“Standard Gases”,

TABLE X: Standard Pure Non-Corrosive Gases

ll lDDaattaa

ffoor SStaannddaarrddCC

Gaa

Nuummbbee

17 Kr Krypton 24.839148

28 A1025

29 Star29

hhoorrtt

Naamm

Air Air 18.259686

Ar Argon 22.377244

CO2

O2 Oxygen

CO Carbon Monoxide

C2H4 Ethylene

C2H6 Ethane

n-C4H10

i-C4H10

C3H8 Propane

N2O

CH4 Methane

Ne Neon

SF6 Sulfur Hexafluoride

C2H2 Acetylene

C25 25% CO2 / 75% Ar

C10 10% CO2 / 90% Ar

C8 8% CO2 / 92% Ar

C2 2% CO2 / 98% Ar

C75 75% CO2 / 25% Ar

He75 75% He / 25% Ar

He25 25% He / 75% Ar

P5 95% Ar / 5% CH4

LoonngNNaammee

Carbon Dioxide

Nitrogen 17.624584

Helium 19.668342

n-Butane 7.3072193

i-Butane 7.4018705

Deuterium 12.473107

Hydrogen 8.8198202

Nitrous Oxide

Xenon

90% He / 7.5%

Ar / 2.5% CO2

Stargon CS 90%

Ar/8%CO2/2%O2

oonnddiittiioonnss

bbssoolluutte Viissccoossiitt (μμPPaa--ss))

14.743078

20.3345

17.475804

10.187017 1.168818 0.99401503

9.2398038 1.255226 0.99208387

8.0415054 1.857567 0.98310908

14.654788

10.949931

30.847242

15.042726 6.121213 0.98816832

22.710043

10.334757

20.455223

21.609367 1.672811 0.99905731

21.762981

22.223694

16.611552

23.052769

23.043143

21.314678

21.730903

22.146573

((

770

°°FFaa

nnd 1144..669966

0.16568373

0.16672796

0.083436355

0.66562262

0.83530908

0.53762966

0.31866435

PPSSIIAA

Deennssiittyyg/l

1.2000185

1.6555318

1.8322844

1.1604245

1.3261455

1.1604842

2.4852646

2.4755419

1.8332083

3.4779701

5.4674713

3.4606011

1.6988495

1.6693503

1.6589828

1.7870162

1.2822075

1.6627585

1.6060633

)

Coommpprreessssiibb

0.99963453

0.99932392

0.99473012

0.99976728

0.99930979

1.0004913

0.99959984

0.96854578

0.97234976

1.0005847

1.0005991

0.99430109

0.99816159

1.0004838

0.9978346

0.99450233

0.99244221

0.99859725

0.9991131

0.99927304

0.99639528

1.0005554

1.0000347

1.0005383

0.99911456

0.99928305

ii ll iittyy

Gaa

Nuummbbee

36 Bio-5M

hhoorrtt

Naamm

Bio-10M

Bio-15M

Bio-20M

Bio-25M

Bio-30M

Bio-35M

Bio-40M

Bio-45M

Bio-50M

Bio-55M

Bio-60M

Bio-65M

Bio-70M

Bio-75M

Bio-80M

Bio-85M

Bio-90M

Bio-95M

ll lDDaattaa

ffoor SSttaannddaarrddCC

LoonngNNaammee

5%CH4 / 95%CO2

10%CH4 / 90%CO2

15%CH4 / 85%CO2

20%CH4 / 80%CO2

25%CH4 / 75%CO2

30%CH4 / 70%CO2

35%CH4 / 65%CO2

40%CH4 / 60%CO2

45%CH4 / 55%CO2

50%CH4 / 50%CO2

55%CH4 / 45%CO2

60%CH4 / 40%CO2

65%CH4 / 35%CO2

70%CH4 / 30%CO2

75%CH4 / 25%CO2

80%CH4 / 20%CO2

85%CH4 / 15%CO2

90%CH4 / 10%CO2

95%CH4 / 5%CO2

TABLE XI: Bioreactor Gases

oonnddiittiioonnss

((

770

°°FFaa

nnd 1144..669966

bbssoolluutte

Viissccoossiitt

(μμPPaa--ss))

14.653659 1.7701352

14.559299 1.7147013

14.459421 1.6564349

14.353426 1.5978991

14.24079

14.120874 1.4809418

13.992953 1.4225176

13.856199 1.3641278

13.709659 1.3057712

13.55223

13.382616 1.1891512

13.1993

13.000513 1.0726464

12.784241 1.0144337

12.548154 0.95624539

12.289467 0.89808023

12.004793 0.83993679

11.690063 0.78181364

11.340435 0.72370939

PPSSIIAA

Deennssiittyyg/l

1.5394019

1.2474461

1.1308852

)

Coommpprreessssiibb

0.99498978

0.99523243

0.99544756

0.99567147

0.99588751

0.9960956

0.99629569

0.99648773

0.99667173

0.99684765

0.99701551

0.99717531

0.99732702

0.99747066

0.9976062

0.99773363

0.99785292

0.99796403

0.99806694

ii ll iittyy

Gaa

Nuummbbee

Gaa

Nuummbbee

71 P-5

72 P-10

TABLE XII: Breathing Gases

ll lDDaattaa

ffoor SStaannddaarrddCC

hhoorrtt

Naamm

EAN-32

EAN-36

EAN-40

HeOx-20 20%O2 / 80%He

HeOx-21 21%O2 / 79%He

HeOx-30 30%O2 / 70%He

HeOx-40 40%O2 / 60%He

HeOx-50 50%O2 / 50%He

HeOx-60 60%O2 / 40%He

HeOx-80 80%O2 / 20%He

HeOx-99 99%O2 / 1%He

EA-40

EA-60

EA-80

Metabol

hhoorrtt

Naamm

32%O2 / 68%N2

36%O2 / 64%N2

40%O2 / 60%N2

Enri Air-40%O2

Enri Air-60%O2

Enri Air-80%O2

Metabolic Exhalant

(16%O2 / 78.04%N2 /

5%CO2 / 0.96%Ar)

TABLE XIII: Chromatography Gases

ll lDDaattaa

ffoor SStaannddaarrddCC

Loonng Nammee

5%CH4 / 95%Ar 22.146573 1.6060633

10%CH4 / 90%Ar 21.899835 1.5565932

Loonng

Naamm

oonnddiittiioonnss

((

770

°°FFaa

nnd 1144..669966

bbssoolluutte

Viissccoossiitt

(μμPPaa--ss))

18.553594 1.2134468

18.665372 1.2200749

18.77622

21.160783

21.164401

21.120337

20.99441

20.851246 0.7451824

20.714981

20.499515 1.0934087

20.338992 1.3144914

19.15564

19.56039

19.953017 1.3009447

18.04915

oonnddiittiioonnss

((

770

bbssoolluutte

Viissccoossiitt

(μμPPaa--ss))

°°FFaa

PSSIIAA)

PPSSIIAA

Deennssiittyyg / l

1.2267031

0.39742666

0.40901481

0.51331687

0.62923199

0.86118182

1.2505528

1.2757473

1.2250145

nnd 1144..669966

Deennssiitt

)

g / l

Compressibility

0.99961365

0.99959516

0.9995768

1.000575

1.0005744

1.0005531

1.0005002

1.0004169

1.0002995

0.99993193

0.99934879

0.99951725

0.9994476

0.99937862

0.99952679

Compressibility

0.99928305

0.99924058

Gaa

Nuummbbee

TABLE XIV: Fuel Gases

ll lDDaattaa

ffoor SStaannddaarrddCC

hhoorrtt

Naamm

SynG-1

SynG-2

SynG-3

SynG-4

NatG-1

NatG-2

NatG-3

Coal

Gas

Endo

HHO

HD-5

LoonngNNaammee

40%H2 / 29%CO /

20%CO2 / 11%CH4

64%H2 / 28%CO /

1%CO2 / 7%CH4

70%H2 / 4%CO /

25%CO2 / 1%CH4

83%H2 / 14%CO /

3%CH4

93%CH4 / 3%C2H6 /

1%C3H8 / 2%N2 /

1%CO2

95%CH4 / 3%C2H6 /

1%N2 / 1%CO2

95.2CH4 / 2.5%C2H6 /

0.2%C3H8 /

0.1%n-C4H10 /

1.3%N2 / 0.7%CO2

50%H2 / 35%CH4 /

10%CO / 5%C2H4

75%H2 / 25%N2

66.67%H2 / 33.33%O2

LPG 96.2%C3H8 /

1.5%C2H6 /

0.4%C3H6 /

1.9%n-C4H10

oonnddiittiioonnss

((

770

°°FFaa

nnd 1144..669966

bbssoolluutte

Viissccoossiitt

(μμPPaa--ss))

15.253299 0.80779626

14.781416 0.44282577

14.725047

13.737274 0.25149803

11.020257 0.71638178

11.006305 0.69973554

10.99793

12.23411

13.712892 0.35247105

16.838285 0.49714469

8.0566953

PPSSIIAA

Deennssiittyyg / l

0.5672004

0.69890329

0.47642496

1.8596915

)

Coommpprreessssiibb

0.99952272

1.0003283

0.99990018

1.0005186

0.9979886

0.99804196

0.99804914

0.9988977

1.0005199

1.0004234

0.98305588

ii ll iitty

HD-10

LPG 85%C3H8 /

10%C3H6

/ 5%n-C4H10

8.060707 1.8793052

0.98275016

Gaa

Nuummbbee

Gaa

Nuummbbee

100

101

ll lDDaattaaffoorSSttaa

hhoorrtt

Naamm

LG-4.5

LG-6

LG-7

LG-9

HeNe-9 9%Ne / 91%He 22.266969 0.22372402

LG-9.4

6%CO2 / 14%N2 / 80%He 19.810188

7%CO2 / 14%N2 / 79%He

9%CO2 / 15%N2 / 76%He 19.644085 0.46382218

9.4%CO2 / 19.25%N2 /

nnddaarrddCC

oonnddiittiioonnss((770°°FFaannd 1144..669966

Loonng

Naamm

4.5%CO2 / 13.5%N2 / 82%He

71.35%He

bbssoolluutte

Viissccoossiitt

(μμPPaa--ss))

19.875867 0.37436617

19.76977

19.488366 0.51269615

TABLE XVI: O2Concentrator Gases

TABLE XV: Laser Gases

ll lDDaattaaffoorSStaa

hhoorrtt

Naamm

OCG-89

OCG-93

OCG-95

89%O2 / 7%N2 / 4%Ar

93%O2 / 3%N2 / 4%Ar

95%O2 / 1%N2 / 4%Ar

nnddaarrddCC

oonnddiittiioonnss((770°°FFaannd 1144..669966

Loonng

Naamm

bssoolluuttee Viissccoossiitt (μμPPaa--ss))

20.276364

20.373369

20.421571

PPSSIIAA

)

Deennssiittyyg / l

0.4041824

0.42074815

PPSSIIAA

Deennssiittyyg / l

1.3277141

1.334345 0.99932581

1.3376605

Compressibility

1.0005373

1.0005193

1.0005058

1.0004745

1.0004795

1.0004588

)

Compressibility

0.99934333

0.99931705

Gaa

Nuummbbee

104

105

106

107

108

109

ll lDDaattaa

ffoor SStaannddaarrddCC

hhoorrtt

Namm

FG-1

FG-2

FG-3

FG-4

FG-5

FG-6

7%O2 / 12%CO2 / 80%N2

13%O2 / 7%CO2 / 79%N2

Loonng Naamm

2.5%O2 / 10.8%CO2 / 85%N2 / 1%Ar

2.9%O2 / 14%CO2 /

82.1%N2 / 1%Ar

3.7%O2 / 15%CO2 /

80.3%N2 / 1%Ar

/ 1%Ar

10%O2 / 9.5%CO2 /

79.5%N2 / 1%Ar

/ 1%Ar

oonnddiittiioonnss

((

770

°°FFaa

bbssoolluutte Viissccoossiitt (μμPPaa--ss))

nnd 1144..669966

Deennssiittyyg / l

1.2415291

1.2635492

1.2715509

1.2569936

1.2452832

1.2335784

Compressibility

0.99938947

0.99927301

0.99923323

0.99932823

0.99940281

0.99947428

PPSSIIAA

)

17.553974

17.489167

17.484521

17.642257

17.781725

17.922258

TABLE XVII: Stack Gases

Gaa

Nuummbbee

114

115

116

117

118

119

120

121

122

123

124

125

126

127

ll lDDaattaaffoorSSttaa

hhoorrtt

Naamm

C-2

C-8

C-10

C-15

C-20

C-25

C-50

C-75

He-25

He-50

He-75

He-90

A1025

Star29

10%CO2 / 90%Ar 21.609367

15%CO2 / 85%Ar 21.225138

20%CO2 / 80%Ar 20.840474

25%CO2 / 75%Ar 20.455223

50%CO2 / 50%Ar 18.525065

75%CO2 / 25%Ar 16.611552

90%He / 7.5%Ar /

Stargon CS 90%Ar /

nnddaarrddCC

oonnddiittiioonnss((770°°FFaannd 1144..669966

Loonng Naamme

2%CO2 / 98%Ar 22.223694

8%CO2 / 92%Ar 21.762981

25%He / 75%Ar 23.043143

50%He / 50%Ar 23.466653

75%He / 25%Ar 23.052769

90%He / 10%Ar 21.816616

2.5%CO2

8%CO2 / 2%O2

bbssoolluutte

Viissccoossiitt

(μμPPaa--ss))

21.314678

21.730903

PPSSIIAA

)

Deennssiittyyg / l

1.6589828 0.99927304

1.6693503 0.9991131

1.672811 0.99905731

1.6814739 0.99891226

1.6901531 0.99875902

1.6988495 0.99859725

1.7426245 0.99764493

1.7870162 0.99639528

1.2822075 1.0000347

0.90972133

0.53762966

0.31445794

0.31866435

1.6627585 0.99911456

Compressibility

1.0004058

1.0005554

1.0005487

1.0005383

6.4.7 Submenu “User-Defined Mixture”

Submenu “User-Defined Mixture” allows the user to create and save up to 20 custom gas mixtures. Each gas mixture may have from 2 to 5 gases from those listed in Tables X through XVIII.

TABLE XVIII: Welding Gases

Fiigguurre

ddddMMiixxttuurree::2200FFrr

115: :AA

dddMMiixxttuurreMMeennuuSSeelleeccttiioon

eeee

By default, the instrument has no preset mixtures in the memory, and there is room for 20 user-defined mixtures (see Figure 15). Press the joystick equivalent of an Ent button to assign a name to the new gas mixture (see

Figure 16). The flashing cursor with letter “A” will appear. Move the joystick UP and DN to change letters and numbers. Once the desired letter (or

number) is set, use the joystick RIGHT command to move the cursor to the next position. Use LEFT to toggle the letter case. Press the joystick equivalent of Ent to save the gas mixture name.

Enntteerr MMiixxttuurreNNaammee:

M__i _x

_M_

UsseeItoCChhaannggeeCCaass

Prree

ssssEEnn

WWhheennDDoonn

Figure 16: Assigning a Name to the Mixture

Once the gas mixture name is saved, the screen shown in gas component for G1, press the joystick equivalent of an a screen with a list of gases will appear.

ee ee

Figure 17

Ent

will appear. To select the

button. As shown in

MyMix1 G:0 Tot: 0.00% G1 0.00% G2 0.00% G3 0.00% G4 0.00% G5 0.00%

Save, Esc to Exit

Figure 17: Add Gas Component and Ratio

NOTE:



and Right and Left to switch between Gas Name and Ratio entry.

Use the joystick Up and Down to select another component,

Figure 18

G:AIR

Air Ar Argon CO2Carbon Dioxide N2 Nitrogen O2 Oxygen He Helium CO

Carbon Monoxide

Figure 18: Selecting Gas Component

NOTE:



gas. Press the joystick equivalent of Enter to select a gas.

Use the joystick Up and Down to highlight the required

MyMix1 G:0 Tot:0.00% G1 Ar G2 G3 G4 G5

Save, Esc to Exit

Figure 19: G1 Component with Selected Gas

Once the gas is selected for component G1, the screen shown in Figure 19 will appear. To select the ratio for component G1, press Right. The screen shown in the top of Figure 20 will appear. To start entering a ratio value in %, press the joystick equivalent of Enter. The G1 component will appear at the bottom of the screen, with a flashing cursor. The user can now enter the desired ratio value for this gas, as shown second screen in Figure 20:

MyMix1 G:0 Tot: 0.00%

G1 Ar 0.00% G2 G3 G4 G5

Save, Esc to Exit

0.00%

Ent

MyMix1 G:0 G1 Ar 0.00% G2 G3 G4 G5 1Ar

Tot: 0.00%

0.00%

10.00%

Figure 20: G1 Component with Highlighted Ratio Value

NOTE:



Use the joystick Up and Down to change numerical value, and Left and Right to change cursor position. Once the required ratio value is entered, press the joystick equivalent of Enter to accept it.

MyMix1 G:0 Tot: 10.00% G1 Ar G2 G3 G4 G5

Save, Esc to Exit

10.00%

0.00%

MyMix1 G:0 Tot: 22.00% G1 Ar G2 He G3 G4 G5

Save,EsctoExit

10.00%

12.00%

0.00%

MyMix1 G:0 Tot: 10.00% G1 Ar 10.00% G2 He 0.00% G3 0.00% G4 0.00% G5 0.00% 1 He 12.00%

Figure 21: Mixture with 4 Components Ready to be Saved

Continue addi ng up to 5 gases, as required for your appl ication. See example of a mixture of 4 components ready to be saved. The total mixture must be 100% to be accepted. An error message will appear if the user tries to save a mixture that does not total 100%. When it is ready, press will prompt with a

confirmation message (see

**************************

NEW MIXTURE HAS BEEN SAVED **************************

Press any key...

Figure 22: Mixture Saved Confirmation Message

Left

Figure 22

MyMix1 G:0Tot:100.0% G1 Ar G2 He G3 CO2 G4 C2H4 G5

Save,Esc toExit

to save the mixture. The instrument

10.00%

12.00%

46.25%

31.75%

Figure 21

0.00%

for an

As directed in the above screen, press any button on the joystick to move to the next screen. Now that the mixture has been saved, it will appear in the “User-Defined Mixture” menu selection (see Figure 23):

MyMix1

Add Mixture: 19 Free

Figure 23: “User-Defined Mixture” Menu Selection with new MyMix1 Mixture

Any saved mixture can be edited by the user. In order to edit a saved mixture, highlight it using Up and Down and then pressing Left. The confirmation message shown in Figure 24 will appear. Select “YES” then press the joystick equivalent of Enter.

Edit MyMix1 Mixture?

YES

Figure 24:""EEddiit MMiixxttuurree""MMee

In the edit mixture mode, the user can change the mixture name, any gas component name, and any ratio value.

6..44..88

The DPM provides the user with a flexible Alarm warning system that monitors the Fluid Flow for all conditions that fall outside configurable limits, as well as visual feedback for the user via the OLED, status LED or an SSR output. The Flow Alarm has several attributes which may be configured by the user via OLED/joystick interface or digital communication interface. These attrributes control the conditions that cause the Alarm to occur and specify actions to be taken when the flow rate is outside the specified conditions.

Flow Alarm conditions become true when the current flow reading is equal to or higher or lower than the corresponding values of High and Low Flow Alarm levels. Alarm action can be assigned with a present Delay interval of 0 to 3600 seconds before activating the SSR output. In most applications, the user will want to have a brief delay (2-10 seconds) to qualify that the flow rate is really settled at a chosen level and has not spiked because of some interference. The Latch Mode control feature allows SSR output to be latched on or to follow the corresponding Alarm status.

SSuu

bbmmeennu““GGaassFFlloowwAAll

nnuuSSeelleeccttiioonn

aarrmm””

The following settings are available for the Flow Alarm (see

a) Flow Alarm Mode (Tabular entry)

This function determines whether the Flow Alarm is Enabled or Disabled, the only two selections available. The default entry is Disabled. Alarm Mode selections can be set with the joystick UPandDNbuttons, and are accepted by pressing the joystick equivalent of the

ENT

button.

b) Low Flow Alarm (Numerical entry)

The limit of the required Low Flow Alarm value can be entered in increments of 0.1%, from 0 to 109.9% FS (Full Scale).

If a Low Alarm occurs, and SSR output is assigned to the Low Flow Alarm Event (see Section

6.4.13.5), the SSR output will be activated when the flow falls below the Low Flow Alarm value.

The Low Flow Alarm condition is also indicated on the corresponding Process Information screen by alternating every second between units of measure and the alert “Lo!” (meaning Low).

NOTE:

The value of the Low Flow Alarm must be less than the value of

the High Flow Alarm.



c) High Flow Alarm (Numerical entry)

Figure 13

The limit of the required High Flow Alarm value can be entered in increments of 0.1%, from 0 to 110% FS (Full Scale). If a High Alarm occurs, and the SSR output is assigned to the High Flow Alarm Event (see Section 6.4.5), the SSR output will be activated when the flow reading exceeds the High Flow Alarm value.

The High Flow Alarm condition is also indicated on the corresponding Process Information screen by alternating every second between units of measure and the alert “Hi!” (meaning High).

NOTE:

The value of the High Flow Alarm must be greater than the value

of the Low Flow Alarm.



d) Flow Alarm Action Delay (Numerical entry)

The Flow Alarm Action Delay is a time period in seconds that the Flow Rate value may remain above the High limit or below the Low limit before an Alarm condition is activated. Valid settings are in the range of 0 to 3600 seconds. The default value is 0: no delay.

e) Flow Alarm Power On Delay (Numerical entry)

Sometimes it is convenient to enable the Flow Alarm only after a specified power-up delay interval. The “Flow Alarm Power On Delay” option allows the user to set a specified time interval which must elapse from the moment of the device power-up event before the Flow Alarm function will be activated. Valid settings are in the range of 0 to 3600 seconds. The default value is 0: no delay.

f) Flow Alarm Action Latch (Tabular entry)

The Flow Alarm Action Latch settings control the Latch features. If SSR output is assigned to the Flow Alarm event, in some cases the Flow Alarm Latch feature may be desirable.

The following settings are available: Enabled or Disabled. By default, the Flow Alarm is nonlatching, which means that the Alarm action is indicated only while the monitored Flow Rate value exceeds the specified conditions that have been set.

6.4.9

The DPM provides the user with a flexible Alarm system that monitors the Fluid Pressure for conditions that fall outside configurable limits and provides visual feedback for the user via the OLED, status LED or an SSR output. The Pressure Alarm has several attributes which may be configured by the user via the OLED/joystick interface or digital communication interface. These attributes control the conditions that cause the Alarm to occur and specify actions to be taken when the pressure reading is outside the specified conditions.

Pressure Alarm conditions become truewhen the current pressure reading is equal to, higher than or lower than the levels.

Alarm action canbe assigned with apresetDelay Interval (0-3600 seconds)to activate the SSR output. The Latch Mode control feature allows SSR output to be latched on or followthe

The following settings are available for the Pressure Alarm (see

Submenu “Gas Pressure Alarm”

corresponding values of High and Low Pressure Alarm

corresponding Alarm status.

Figure 13

a) Pressure Alarm Mode (Tabular entry)

This function determines whether the Pressure Alarm is Enabled or Disabled, the two selections available. The default entry is Disabled. can be set with the Joystick joystick equivalent of an

andDNbuttons and are accepted by pressing the

ENT

button.

Alarm Mode selections

b) Low Pressure Alarm (Numerical entry)

The limit of required Low Pressure Alarm value can be entered in currently selected pressure units, in increments of 0.1% of the pressure full scale range from 0.0 to 99.9.

If a Low Alarm occurs, and SSR output is assigned to the Low Pressure Alarm event (see Section 6.4.13.5) the SSR output will be activated when the pressure is less than the Low Pressure Alarm value.

The Low Pressure Alarm condition is also indicated on the corresponding Process Information Screen by alternating every second between units of measure and the alert "LOW!"

NOTE:



value of the High Pressure Alarm.

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The limit of required High Pressure Alarm value can be entered in currently selected pressure units, in increments of 0.1% of the pressure sensor full scale range from 0.1 to 100%.

If a High Alarm occurs, and SSR output is assigned to the High Pressure Alarm event (see Section 6.4.13.5), the SSR output will be activated when the pressure reading is more than the High Pressure Alarm value.

The High Pressure Alarm condition is also indicated on the corresponding Process Information Screen by alternating every second between units of measure and the alert "HIGH!"

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The Pressure Alarm Action Delay is a time period in seconds that the Pressure Reading value may remain above the High limit or below the Low limit before an Alarm condition is activated. Valid settings are in the range of 0 to 3600 seconds. The default value is 0: no delay.

The value of the Low Pressure Alarm must be less than the

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the value of the Low Pressure Alarm.

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e) Pressure Alarm Power OnDelay (Numerical entry)

Sometimes it is convenient to enable the Pressure Alarm only after a specified power-up delay interval. The “Pressure Alarm Power On Delay” option allows the user to set a specified time interval which must elapse from the moment of the device power-up event before the Pressure Alarm function will be activated. Valid settings are in the range of 0 to

3600 seconds. The default value is 0: no delay.

f) Pressure Alarm Action Latch (Tabular entry)

The Pressure Alarm Action Latch settings control the Latch features. If SSR output is assigned to the Pressure Alarm event, in some cases the Pressure Alarm Latch feature may be desirable.

The following settings are available: Enabled or Disabled. By default, the Pressure Alarm is non-latching, which means that the Alarm action is indicated only while the monitored Pressure reading value exceeds the specified conditions that have been set.

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The DPM provides the user with a flexible Alarm system that monitors the Fluid Temperature for conditions that fall outside configurable limits and provides visual feedback for the user via the OLED, status LED or an SSR output. The Temperature Alarm has several attributes which may be configured by the user via the OLED/joystick interface or digital communication interface. These attributes control the conditions which cause the Alarm to occur and specify actions to be taken when the temperature reading rate is outside the specified conditions.

Temperature Alarm conditions become true when the current temperature reading is equal to, or higher or lower than, corresponding values of High and Low Temperature Alarm levels.

Alarm action can be assigned with preset Delay Interval (0-3600 seconds) to activate the SSR output. The Latch Mode control feature allows SSR output to be latched on or follow the corresponding Alarm status.

Following settings are available for Temperature Alarm (see Figure 13):

a) Temperature Alarm Mode (Tabular entry)

This function determineswhetherthe TemperatureAlarmis Enabled orDisabled. Two selections are available: Enabled or Disabled. The default entry is Disabled. Alarm Mode selections can be set with the JoystickUPandDNbuttons and are accepted by pressing the joystick equivalent of an

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button.

b) Low Temperature Alarm (Numerical entry)

The limit for the Low Temperature Alarm value can be entered in currently selected temperature units, in increments of 0.1 degree within the range of

-20 °C to 69.9 °C.

If a Low Alarm occurs, and SSR output is assigned to the Low Temperature Alarm event (see Section 6.4.13.5), the SSR output will be activated when the temperature is lower than the preset Low Temperature Alarm value.

The Low Temperature Alarm condition is also indicated on the corresponding Process Information Screen by alternating every second between units of measure and the “L” alert, meaning Low.

NOTE:

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the value of the High Pressure Alarm.

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The limit of the required High Temperature Alarm value can be entered in currently selected units, in increments of 0.1 degree within the range of -19.9 °C to 70.0 °C. If a High Alarm occurs, and SSR output is assigned to the High Temperature Alarm event (see Setion 6.4.13.5), the SSR output will be activated when the Temperature reading is greater than the High Temperature Alarm value.

The High Temperature Alarm condition is also indicated on the corresponding Proess Information Screen by alternating every second between units of measure and the “H” alert, meaning High.

NOTE:

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the value of the Low Pressure Alarm.

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The Temperature Alarm Action Delay is a time period in seconds that the Temperature reading value may remain above the High limit or below the Low limit before an Alarm condition is activated. Valid settings are in the range of 0 to 3600 seconds. The default valus is 0: no delay.

The value of the Low Pressure Alarm must be less than

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Sometimes it is convenient to enable the Temperature Alarm only after a specified power-up delay interval. The “Temperature Alarm Power On Delay” option allows the user to set a specified time interval that will have to elapse from the device power-up event before the Temperature Alarm function will be activated. Valid settings are in the range of 0 to 3600 seconds. The default value is 0: no delay.

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Two settings are available: Disabled or Enabled. By default, the Temperature Alarm is non-latching. This means that the Alarm Action is indicated only if the monitored Temperature reading exceeds the userspecified conditions.

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The DPM provides the user with two independent Programmable Flow Totalizers. The total volume (mass) of the flowing fluid is calculated by integrating the actual instantaneous fluid mass flow rate with respect to time. Totalizer reading values are stored in the EEPROM and saved every second. In the case of power interruption, the last saved Totalizer value will be loaded at the next power on cycle, so the Totalizer reading will not be lost. Use the “Totalizer Menu” to navigate to the “Totalizer #1” or "Totalizer #2" menu options. The following settings are available for Totalizer #1 and Totalizer #2 (see Figure

13):

a) Totalizer Mode (Tabular entry)

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This option determines whether Totalizer is Enabled or Disabled, the only two selections besetwiththe joystick equivalent of an

available.The default entryisDisabled.TotalizerMode

NOTE:

Before enabling the Totalizer, ensure that all Totalizer settings are configured properly. Totalizer Start values must be entered in the currently active Volumetric or Mass flow engineering unit. The Totalizer will not totalize until the Process Flow Rate becomes equal to or greater than the Totalizer Start value. Totalizer Event values must also be entered in currently active volume- or mass-based engineering units. If the Totalizer Event (action) is not required at a preset total volume feature, set the Totalizer Event value to zero (which is the default setting).

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selections can

andDNbuttons and are acceptedby pressing the joystick

button.

b) Totalizer FlowStart (Numerical entry)

This option all ows the start of the Totali zer at a preset flow rate. The Totalizer wil l not

totalize until theprocessflowrate becomes equal to or greater than the Totalizer Flow Start value. The limit ofrequired Totalizer FlowStart valuecan beentered in increments of 0. 1%, from 0 - 100% FS.

c) Totalizer Action Volume (Numerical entry)

This option allows the user to activate a preset required action when the Totalizer reaches a preset volume. Totalizer Action Volume value must be entered in currently active volume- / mass-based engineering units. A Totalizer Action Event becomes true when the Totalizer reading is more than or equal to the preset "Totalizer Action Volume”. If the Totalizer feature

is not required, set “Totalizer Action Volume” value to zero; this is the default setting

d) Totalizer Power On Delay (Numerical entry)

Sometimes it is convenient to start theTotalizer only after aspecified power-up delay interval. Mass flow meters require some warm-up time from the power-up event in order to stabilize the process variable output and to get anaccurate reading. The “Totalizer PowerOn Delay” option allows the user specify and set a time intervalwhich must elapse from the device power-upeventbeforetheTotalizerwill be activated. Vali dset tings are in the range of 0 to 3600 sec onds. The def ault value is 0: n o delay.

e) Totalizer Auto Reset (Tabular entry)

This option allows the automatic reset of the Totalizer when it reaches a preset Action Volume volume of fluid must be repeatedly dispensed intothe process. Twoselections are available: Enabled or Disabled. The default entry is Disabled. Totalizer Auto Reset selections can be set with the joystickUPandDNbuttons and are accepted by pressing the joystick equivalent of an

f) Totalizer Auto Reset Delay (Numerical entry)

This option may be desirable when the “Totalizer Auto Reset” feature is enabled and

the range of 0 to 3600 seconds. The default value is 0: no delay.

value. This f eature may be conve nient for batch p rocessing, when a predefi ned

predefined delay is required before anew batch cycle starts. Valid settings are in

ENT

button.

g) Reset Totalizer (7DEXODU entry)

Either Totalizer’s reading can be reset by selecting the “Reset Totalizer” menu option. A typical Totalizer Reset screen is shown below:

Reset Totalizer #1:

YES

DO YOU WANT

RESET TOTALIZER?

Figure 25: Reset Totalizer Screen

When the “YES” option is selected, Totalizer #1 will be reset. A confirmation screen will appear (see Figure 26).

**************************

Totalizer

has been reset

**************************

Press any key...

Figure 26: Totalizer Reset Confirmation

A local maintenance push button is available to manually reset the Totalizer in the field for DPM meters without the OLED/joystick option. The maintenance push button is located on the “Multi-Functional Push-Button Operation”).

NOTE: If the Totalizer “Lock Reset Function” is enabled, the Reset feature is not functional and therefore the Totalizer cannot be reset. The “Lock Reset Function” parameter can only be changed manually

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Command Set in Section .2). By default, the Totalizer “Lock Reset Function” is disabled, but it can be enabled by the user if the Totalizer reading in the user application must be preserved for the lifetime of the instrument.

left side of the flow meter (see Section 6.5

h) TotalizerReadingDecimalPoint(DP) Precision(Numericalentry)

Sometimes it is convenient to have Totalizer reading decimal point precision much lower than Flow Rate readings (for example, when the Totalizer accumulates readings over a long period of time). The “Totalizer DP Precision” parameter allows the user to decrease the number of digits after the decimal point for Totalizer readings from 0 to -5. For example, if the Flow Reading has precision of 3 digits after the decimal point, setting the “Totalizer DP Precision” parameter to -2 will result in Totalizer reading precision of 1 digit after the decimal point. Fewer digits after the decimal point allow for more digits in front of it.7RWDOL]HUUHDGLQJILHOGKDVGLJLWV

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The flow Pulse Output operates independently from the Totalizers and is based on configuration settings (see Figure 13) which can provide pulse frequency proportional to instantaneous fluid mass flow rate.

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The OLED/joystick interface and digital communication interface commands are provided to:

Enable/Disable Pulse Output

Start Pulse Output at a preset flow rate (0.0 - 100.0% FS)

Configure Unit/Pulse value (in current engineering units)

Configure Pulse Active On Time (50 - 6553 ms)

NOTE:



(0.05second).The Pulse Outputcannotoperate faster than one pulse every100 milliseconds(0.1 second). A goodrule to followis to set the Unit/Pulsevalue equal to the maximum flow in the same units per second. This will limitthe pulse rate to no faster than one pulse every second.

For example: Maximum flow rate = 120 gr/min (120 gr/min = 2 gr/sec) If unit per pulse is set to 120 gr per pulse, the Pulse Output will pulse once every minute. If unit per pulse is set to 2 gr per pulse, the Pulse Output will pulse once every second.

The Pulse Output incorporates the pulse output queue, which accumulates pulses if the Pulse Output is accumulating process flow faster than the pulse output hardware can produce. The queue will allow the pulses to “catch up” later if the flow rate decreases. A better practice is to slow down the Pulse Output by increasing the value in the Unit/Pulse setting in the Pulse Output menu (see Figure 13).

NOTE:



(SSR) output must be assigned to the “Pulse Output” function (see Section 6.4.13.5). The Pulse output signal will be accessible via SSR output (pins 1 and 2) on the DPM 8-pin MiniDIN connector (see Figure 1 for proper wiring connections).

The Pulse Output minimum Active On time is 50 milliseconds

If Pulse Output feature is required, the Solid State Relay

6..44..11

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Standard Temperature and Normal Temperature menu selections allow the user to first select desired temperature units of measure: °C, °F, °K, or °R. By default, currently active temperature units will be selected. Once the units are selected, the use can adjust the desired temperature value and press the joystick equivalent of an ENT button to save it. By default, currently stored values will be displayed.

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(21.1 Û&, and for Normal Temperatureis 32 Û) (0.0 Û&

Standard Pressure and Normal Pressure menu selections allow the user to first select the desired pressure units of measure. By default, currently active pressure units will be selected. Once the units are selected, the user can adjust the desired pressure value and then press the joystick equivalent of an displayed.

NOTE:



Pressure is 14.696 PSIA (1.0 atm).

NOTE:



Pressure values are changed, the corresponding PI mass flow readings shown on the instrument display or transmitted via digital or analog interface will change as well.

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The local OLED Process Information screens can be configured to be static (manual control) or dynamic (automatic sequencing). In the static mode, pressing the joystick UP allows the user to page through the PI screens in the forward direction, while pressing the joystick DN pages through the PI screens in the opposite direction. When the last PI screen is reached, the firmware “wraps around” and scrolls to the initial PI screen once again.

The factory default value for the Standard Temperatureis 70 Û)

ENT

button to save it. By default, currently stored values will be

The factory default value for both Standard and Normal

Once Standard Temperature/Pressure and/or Normal Temperature/

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NOTE:

PI screens which are not Enabled (masked) will be skipped. PI

Screen #1 (Mass Flow Rate, Pressure, Temperature and Totalizer #1

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reading) cannot be Disabled.

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This option determines whether the display screens are in static (manual control) or dynamic (automatic sequencing) mode. Two selections are available: Static or Dynamic. The default entry is Static (manual control).

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This menu selection defines the time interval in seconds for each PI screen to be displayed in the dynamic mode (automatic sequencing). Screen Cycle Time can be set to any value between 1 and 3600 seconds (numerical entry).

c) PI Screen Configuration

Using Screen Configuration settings, the user can enable (unmask) or disable (mask) up to 6 different process variable combinations (see Figure 27). The screen is Enabled if the checkbox on the same line as the corresponding screen is selected: [*]. If the screen is disabled, it will be skipped. By default, the instrument is shipped from the factory with all PI screens enabled, as indicated in Figure 27.

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As explained, in the example shown above, all PI screens are enabled. Each PI screen is assigned to change PI Screen Configuration the joystickUPandDNbuttons and appear or disappearonthe right side of thecorrespondingscreen line. The asterisk signifies that thescreen is enabled. Inorder to disable corresponding asterisk must be removed. To accept and save new PI Screen Configuration settings in the device’s nonvolatile memory, press the joystick button.

d) OLED Operational Brightness (Numerical entry)

Using OLED Operational Brightness settings, the user can adjust the desired level of OLED brightness during normal operation (when the screensaver is not active). The OLED brightness has 256 different levels.

a correspondingbit in thePI Screen Register.In order to

, the user should select the desired screen using

thenpress the

RIGHT

button. The asterisk will

the screen, the

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NOTE:

for room temperature (20 °C or 70 °F).

e) OLED Screensaver Mode

OLED is subject to burn-in. It can retain images on the screen temporarily and, in some cases even permanently if it is left static for too long. In order to mitigate this potential problem, the screensaver feature is provided.

This feature has 4 different modes:

- Disabled (no screensaver)

- Low Brightness

- Vertical Scrolling GHIDXOW

- OLED Off

f ) OLED Screensaver (SS) Time Out Feature (Numerical entry)

This menu selection defines atime interval in seconds from the moment the local

Esc

button or joystick interface was last used (or, if neither was used, from the power up activates the local to normal “Operational Brightness starting anew delay cycle.The defaultsetting is 900

g) OLED Screen Saver Brightness (Numerical entry)

By default, the brightnesslevel is set to 127 which is the optimal level

event) to the moment the Screensaver is activated. Each time the user

Esc

button or the joystick interface, the OLED brightness reverts

Level” and theinternal timer resets to zero,

seconds (15 minutes).

Using OLED Screen Saver Brightness settings, the user can adjust the desired level

OLEDbrightnessduring"Low Brightness" screensaver mode (when the

of the screensaveris

active). The brightness has 127 different levels.

NOTE:



h) Flow Rate Precision (Tabular entry)

The DPM Flow Meter calculates Flow Rate Precision automatically, based on selected units the Flow Rate Precision is set to “Normal”. In cases where more digits after the decimal point are required, the user can change decimal point precision to the “Elevated” level(one more digit



If Screensaver mode is active and has been changed, new settings will be activated in the next Screensaver cycle (after the Esc button or joystick interface was activated to disable the currently active screensaver). The OLED “Screensaver Brightness Level” parameter is only applicable for “Low Brightness” Screensaver mode. In “Vertical Scrolling” mode, the normal operational brightness level will be activated. If OLED display is not used in the user application (e.g., the meter is installed in a remote enclosure), we recommend setting the

ofmeasureand current gas fullscale flow rateto keep the reading. By default,

after the decimal point).

NOTE:

In some cases, selecting “Elevated” precision may result in unstable readings (the last digit constantly changes). In such cases, we recommend switching the decimal point precision to the “Normal” level.

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The DPM instrument is equipped with a universal transceiver which supports both RS-232 and RS-485 interfaces. The following settings are available:

NOTE:

communication interface type set according to your order.

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e or result in faulty operation of the electronics circuitry.

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This option determines the device’s digital communication interface speed (Baud rate). It can be set to one of the following:

x 1200 x 2400 x 4800 x 9600 x 19200 x 38400 x 57600 x 115200

By default, the device is shipped from the factory with its baud rate set to

9600.



c) RS-485 Bus Address (Numerical entry)

The RS-232 interface does not require bus addressing. The RS-485 interface, however, does require 2 hexadecimal characters of the address to be assigned. By default, each flow meter is shipped with its RS-485 address set to 11 hexadecimal. When more than one device is present on the RS-485, each device must have a unique address. The 2 characters of the address in the hexadecimal representation can be changed from 01 to FF.

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the baud rate of the host PC and/or PLC that it is connected to.

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Address 00 is reserved for global addressing. Do not assign the global address to any device. When a command with the global address is sent, all devices on the RS-485 bus execute the command but do not reply with an acknowledgement message.

NOTE: Do not assign the same RS-485 address for two or more devices on the same RS-485 bus. If two or more devices with the same address are connected to one RS-485 network, a communication collision will take place on the bus, causing communication errors to occur.

d) RS-485 Termination (applicable to RS-485 only)

A reflection in a transmission line is the result of an impendance discontinuity that a traveling wave sees as it propagates down the line. To minimize such reflections from the ends of the RS-485 cable, the user must place a Line Termination (LT) near each of the two ends of the RS485 bus. If you are connecting a DPM meter as the last device in the end of a long (more than 100 meters) transmission line, you can use this menu VHOHFWLRQWRLQWHUQDOO\FRQQHFWDȍUHVLVWRUEHWZHHQWKH56-485 + and –wires.

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232 mode. Doing so will cause damage to the instrument or improper operation of the communication interface. The factory default setting is Disabled.

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If the DPM flow meter is equipped with Modbus interface, this menu selection allows the user to change the Modbus device ID (address) and its communication parameters.

Modbus is a standard protocol developed by A.E.G. Schnieder. The DPM supports only the Modbus RTU version. Modbus RTU enable a computer or a PLC to read and write directly to registers containing the meter’s parameters (see technical document TD-DPMCMOD-0118 “Modbus RTU slave interface for AALBORG digital mass flow instruments” for a detailed description of supported Modbus functions and registers).

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Decimal representation ranges from 1 to 247. By default, all DPM meters are equipped with a Modbus interface shipped from the factory with the Device ID parameter set to decimal 11.

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Modbussegment.If two or moredeviceswith the same address are connected to the one Modbusnetwork, a communication collision will take place on the resulting in communication errors.

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This parameter can be set to either None, Odd, or Even. By default, the Parity parameter is set to None. In real applications, this parameter should follow Parity settings used in the Modbus Master controller.

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This parameter can be set to either One (1) or Two (2). By default, the Stop Bit parameter is set to 2. In real applications, this parameter should follow Stop Bit settings used in the Modbus Master controller.

If multiple meters are connected to the Modbus Master controller device, they all should have the same baud rate settings as the Master.

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One set of the SPST Solid State Relay outputs is provided to actuate usersupplied equipment. It is programmable via digital interface or local OLED/joystick interface such that the relay can be made to switch when a specified event occurs (e.g., when a low or high flow alarm limit is exceeded or when one of the two totalizers reaches a specified value).

The user can configure relay action from the following 16 options:

Disabled:

Low Flow Alarm: High Flow Alarm: Range between H&L:

Low P. Alarm: High P. Alarm:

P. Range H-L:

Low T. Alarm: High T. Alarm: T. Range H-L:

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No action (output is not assigned to any events and relay is not energized) (L) Low Flow Alarm condition (H) High Flow Alarm condition (R) Range between High and Low Flow Alarm conditions (L) Low Pressure Alarm condition (H) High Pressure Alarm condition

(R) Range between High and Low Pressure Alarm conditions (L) Low Temperature Alarm condition (H) High Temperature Alarm condition (R) Range between High and Low Temperature Alarm conditions

Totalizer#1 > Limit:

)

Totalizer#2 > Limit: Pulse Output: Alarm Events: Diagnostic Events: Manual On (Enabled):

NOTE: Relay terminals are accessible via the DPM meter’s 8-pin

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MiniDIN connector (pins 1 and 2) and have maximum 48VDC voltage and 0.4A current ratings. See Figure 1 and Table I for proper wiring connections

(T1) Totalizer#1 exceeded preset limit volume (T2) Totalizer#2 exceeded preset limit volume Pulse Output Queue is overloaded One or more Alarm Events are active One or more Diagnostic Events are active (M) Activated regardless of the Alarm, Totalizers or other conditions. By default, relay is Disabled (not energized)

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The DPM series Mass Flow Meters are equipped with calibrated 0-5Vdc, 010Vdc, and 4-20 mA output signals. The following options are provided for analog output:

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The user can select one of the following:

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NOTE

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: Before changing “Analog Output Interface” mode, make sure the load impedance is within the corresponding limits stated above. Failure to do so might cause damage to the analog output circuitry or result in erroneous readings.

CAUTION: The 4-20 mA current loop output is self-powered (sourcing non-isolated type). Do NOT connect an external voltage source to the output signals. (See Section 3.2 for proper wiring connections.

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The DPM analog output calibration involves calculation and storing the offset and span variables in the EEPROM based on two calibration points (0 and 100% F.S.). The 0-5 and 0-10 outputs have only scale variables, and the 4-20 mA output has offset and scale variables.

NOTE:

calibrated at the factory. There is no need to perform analog output calibration unless the analog to digital converter (DAC) IC, output



amplifier IC, or passive components from analog output circuitries were replaced or your factory customer support representative suggested recalibration. Any alteration of the analog output scaling variables in the EEPROM will void the calibration warranty supplied with the instrument.

Power up the DPM meter for at least 30 minutes prior to commencing the calibration procedure. Observe the current analog output mode settings.

For 0-5 or 0-10 Vdc output calibration: Connect the corresponding type of measurement device (voltmeter) to pins 6 (plus) and 4 (minus) of the 8-pin MiniDIN connector.

For 4-20 mA output calibration: Connect the corresponding type of measurement device (ampmeter) to pins 6 (plus) and 4 (minus) of the 8-pin MiniDIN connector.

Follow firmware prompts and adjust calibration point values according to your measurement device reading by use of the joystick UP, DN, LEFT and RIGHT buttons. If you need to abort calibration, press the Esc button. When the calibration is complete, the firmware will display new offset and span values and ask the user to press the joystick ENT button to save the new calibration variables to the EEPROM, or to press the Esc button to abort calibration and exit without saving any changes. When the process is done, the firmware will prompt the user with a confirmation message.

The analog outputs available in the DPM meter were

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This menu selection must be used only for troubleshooting purposes as requested by your customer support representative. It allows for emulating analog output readings by entering a desired flow rate reading in % of full scale, from 0.0 to 110.0%.

CAUTION: When “Analog Output Test” is selected, the output reading does not represent any actual Process Information (PI) variable (flow rate reading).

Adjust the desire flow output value using the joystick UP, DN, LEFT and RIGHT buttons. Press the joystick ENT button to activate analog output. To abort the analog output test mode, press the Esc button. Once the test mode is deactivated, the analog output should represent actual flow rate readings.

6..44..1133..7SS

DPM series Mass Flow Meters are equipped with dual color LED which allows signaling a variety of different events with combinations of three colors (red, green and amber) and a specific time pattern. Status LED operation can be adjusted/ filtered for the indication of different events based on custom user needs.

Status LED can be set to the following modes (see Figure 13):

1. Normal, which supports the following events:

1.1 Auto Zero Failure (constant RED)

1.2 Fatal Error (constant RED, requiring the system to be reset for recovery)

1.3 User entry via side Push Button (specific pattern limited by a time interval

1.4 Power Up Sensor Warm Up interval (1 to 3 seconds). (Constant

2. Monitoring Flow Alarm and Flow Totalizer events (default settings):

2.1 High Flow Alarm RED/OFF (alternating every second)

2.2 Low Flow Alarm GREEN/OFF (alternating every second)

2.3 Totalizer#1 Event AMBER/OFF (alternating every second)

2.4 Totalizer#2 Event AMBER/OFF (alternating every second)

2.5 High Flow Alarm and Totalizer#1 Event RED/AMBER (alternating every

2.6 High Flow Alarm and Totalizer#2 Event RED/AMBER (alternating every

2.7 Low Flow Alarm and Totalizer#1 Event GREEN/AMBER (alternating

2.8 Low Flow Alarm and Totalizer#2 Event GREEN/AMBER (alternating

2.9 Both Totalizer#1 and Totalizer#2 Events AMBER/OFF (on for 3 seconds,

2.10 High Flow Alarm and Totalizer#1 & #2 Events AMBER/RED (AMBER

2.11 Low Flow Alarm and Totalizer#1 & #2 Events AMBER/GREEN (AMBER

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up to 35 seconds)

AMBER). This can be interrupted only by User PB entry or Fatal Error.

second)

2 seconds)

every second)

every 2 seconds)

off for 1 second)

for 3 seconds, RED for 1 second)

for 3 seconds, GREEN for 1 second)

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3. Monitoring Alarm Events only (any active Alarm event will trigger LED indication): GREEN/OFF (alternating every second)

4. Monitoring Diagnostic Events only (any active Diagnostic event will trigger LED indication): RED/OFF (alternating every second)

5. Test and Configuration Communication Interface Monitoring:

5.1 Data Received (RX activity) RED LED flashing momentarily (about 200 ms or less)

5.2 Data Transmitted (TX activity) GREEN LED flashing momentarily (about 200 ms or less)

6. Modbus Communication Interface Monitoring (optional):

6.1 Data Received (RX activity) RED LED flashing momentarily (about 200 ms or less)

6.2 Data Transmitted (TX activity) GREEN LED flashing momentarily (about 200 ms or less)

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CAUTION: The signal conditioner parameters for your meter

were set at the factory to maintain the best performance. Do not change Signal Conditioner parameters unless so instructed by your factory technical support representative. Consult the factory for more information.

6..44..114SSeenn

The DPM includes an auto zero function that, when activated, automatically adjusts the differential pressure sensors to read zero. The initial zero adjustment for your DPM was performed at the factory.

It is not required to perform zero calibration unless the device has zero reading offset with no flow conditions or the absolute pressure sensor reading is not accurate.

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NOTE:

powered up for at least 15 minutes andabsolutely no flow condition is established. For better results, it is recommended that you start Auto Zero at least 30 minutes after power was applied to the flow meter.

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Before performing Zero Calibration, make sure the device is

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Shut off the gas flow into the DPM meter. To ensure that no seepage or leaking occurs into the meter, it is good practice to temporarily disconnect the gas source. The Auto Zero may be initiated locally using optional OLED/joystick interface (see Figure 1) or by pressing the multi-functional maintenance push button located on the left side of the meter, or via digital communication interface (see Figure 4: DPM Interface Connectors and Maintenance Push Button).

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To start DP sensor Auto Zero locally using OLED/joystick interface, navigate to “Sensor Zero Calibration” menu selection, then select “Start Auto Zero Now”. On a DPM meter with optional OLED, the following screen will appear:

To start Auto Zero, select the YES option and push the joystick ENT button. The status LED will start flashing RED/GREEN (alternating every 2 seconds). The following screen will appear:

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Figure 28: Start Sensor Auto Zero

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Figure 29: Sensor Auto Zero “On” Confirmation

Actual differential pressure and temperature Analog to Digital

your instrument may be different.

Internal Auto Zero process may take 5 to 15 seconds.

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If the device was unable to adjust the sensor reading to within 0 r7 counts, then Auto Zero is considered unsuccessful. A constant RED light will appear on the status LED. The user will be prompted with the “Auto Zero ERROR!” screen. If additional Auto Zero procedures yield the same error message, the sensor is most likely defective; arrange to return the meter for service.

NOTE

using the multifunctional maintenance push button, see Section 6.5.

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: To initiate Differential Pressure Sensor Auto Zero Calibration

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Figure 30: Sensor Auto Zero Completed

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The DPM instrument is equipped with a high accuracy, high resolution absolute pressure sensor which was calibrated at the factory and does not require additional calibration. Depending on actual installation conditions, however, during operation it may periodically require the auto tare procedure to increase accuracy.

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CAUTION: The AP Auto Tare procedure must be performed with

absolutely no flow conditions. Make sure both inlet and outlet ports of the instrument are connected to the atmosphere.

NOTE:

powered for at least 15 minutes and absolutely no flow condition is established. For best results, we recommend starting AP Sensor Tare at least 30 minutes after power was applied to the flow meter.

Before performing AP Auto Tare, make sure the device is

NOTE: The AP Sensor Tare procedure requires high accuracy (at

least 0.2% of reading) absolute pressure sensor reference standard.



The AP sensor Tare result will be as accurate as your reference absolute pressure sensor is.

To start the AP sensor Tare procedure locally using the OLED/joystick interface, select “Sensor Zero Calibration” from the main menu, then navigate to the “Start AP Auto Tare” menu selection. The “Start Absolute Pressure Senor Tare” screen will appear (see Figure 31).

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Figure 31: Start AP (Absolute Pressure) Sensor Tare

To start the Absolute Pressure sensor tare, select the “YES” option and push the joystick ENT button. The following screen will appear:

Enter Ambient Press.

According Refer. Std.

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Make Sure Inst. Ports

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Figure 32: Entering Ambient Pressure from Reference Standard

Enter ambient pressure reading according to the reference standard. Once this is done, press the joystick ENT button. The instrument will perform an AP sensor tare process. If it is successful, the screen will prompt the user with a confirmation message.

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The DPM is equipped with Alarm and Diagnostics Events registers. These are available via digital interface and an optional OLED screen indication. The Alarm Event Register monitors non-critical alarm events related to the meter settings and process variables. The Diagnostic Event Register monitors critical diagnostic events related to meter performance and peripheral hardware conditions.

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TABLE XIX: ALARM EVENTS REGISTER

EVENT NUMBER ALARM EVENTS DESCRIPTION OLED BIT

1 High Flow Alarm 0

2 Low Flow Alarm 1

3 Flow Between High and Low Limits 2

4 Totalizer#1 Exceed Set Event Volume Limit 3

5 Totalizer#2 Exceed Set Event Volume Limit 4

6 High Pressure Alarm 5

7 Low Pressure Alarm 6

8 Pressure between High and Low Limits 7

9 Low Temperature Alarm 8

Password Event (attempt to change password)

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CODE

Low Temperature Alarm 9

Temperature Between High and Low Limits

Pulse Output Queue overflow

Power On Event (power on delay > 0)

There are actually three separate registers:

The Status Alarm Event Register, which holds each active alarm event (this is read only)

The Mask Alarm Event Register, which allows the user to Enable or Disable monitoring for a particular event

The Latch Alarm Event Register, which allows the user to Enable or Disable the latch feature for a particular event

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Each active Alarm Event will be indicated on the OLED screen. In addition, the total number of currently active alarm events will be displayed on the first line. A typical display with no active Alarm Events is shown in Figure

33.

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Figure 33: Alarm Events Register (with no alarms)

A typical display with two active Alarm Events is shown in Figure 34:

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Figure 34: Alarm Events Register (with two active events)

If more than 7 events are displayed, the user can use the joystick UP and DN buttons to scroll through the record of all indicated events. If the event is not latched in the Latch Alarm Event Register, it may appear and disappear from the status screen; it will be indicated as long as the actual event is taking place.

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Using the Mask Alarm Event Register settings, the user can individually enable (unmask) or disable (mask) each event. The event is enabled if an asterisk appears in the brackets to the right of the event name. If the event is disabled, it will not be processed or indicated in the events status Register even if actual conditions for the event have occurred. By default, the meter is shipped from the factory with only one event active: “8 – Power On Event”. All other events are disabled. A typical display with Mask Alarm Event Register selection is shown in Figure 35.

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Figure 35: Alarm Events Mask Register

In the example shown in Figure 35, latch features for all except event #2 are disabled. In order to change the Mask Alarm Event Register settings, the user should select the desired event using the joystick UPand DNbuttons, and then press the brackets to the right of the selected event. The asterisk indicates that the event is enabled. To disable an event, remove the corresponding asterisk. Use the button to accept and save your new Mask Alarm Event Register settings to the meter’s nonvolatile memory.

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Using the Latch Alarm Event Register settings, the user can individually enable (unmask) or disable (mask) the latch feature for each event. The event is enabled if an asterisk appears in the brackets to the right of the event name. If the event is not latched (indicated by no asterisk), it may appear and disappear from the status screen. It will be indicated as long as the actual event is taking place. By default, the meter is shipped from the factory with the latch feature disabled for all events. A typical display with Latch Alarm Event Register selection is shown in Figure 36:

RIGHT

button. The asterisk will appear in (or disappear from) the

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Figure 36: Alarm Events Latch Register

In the Figure 36 example, latch features for all events are diabled except the Range between High and Low. In order to change Latch Alarm Register settings, the user should select the desired event using the joystick UP and DN buttons, then pressing the RIGHT button. The asterisk will appear in or disappear from the brackets to the right of the corresponding event. The asterisk means that the latch feature is enabled.

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To disable a latch feature, the corresponding asterisk must be removed. Use the ENT button to accept and save new Latch Alarm Event Register settings in the meter’s nonvolatile memory.

d) Reset Status Alarm Event Register (Tabular entry)

The

Status Alarm Event Register

menu option. A typical display with the

Reg”

screen is shown in

Once the “YES” option is selected, the Event Register will be reset, and the following confirmation screen will appear:

Figure 37

Reset Alrm Events Reg.:

Figure 37: Resetting Alarm Events Register

can be reset by selecting the

Status Alarm Event Register

. Note that it requires confirmation from the user:

YES

DO YOU WANT

RESET EVENT REG?

***********************

Event Reg. Has

been reset!

***********************

“Reset Alarm Event

reset

Press any Key...

Figure 38: Alarm Event Register Reset Confirmation Screen

NOTE:

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Any Alarm Events that may have occurred (Event 0 to Event D) are stored in the internal status register. All detected events (if corresponding bit in the latch register is not masked) remain stored until the register is manually reset (by means of the digital communication interface). If the event corresponding bit in the latch register is masked (disabled), the event will be indicated as long as it is active (no latching). The status Alarm Event Register is mapped to the SRAM (volatile memory). In case of power interruption, the status Event Register will be automatically reset.

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TABLE XX: DIAGNOSTIC EVENTS REGISTER

EVENT NUMBER

1 CPU Temperature Too High 0

2 DP Sensor Initialization Error 1

3 AP Sensor Initialization Error 2

4 2.5 Vdc Reference Out of Range 3

5 Flow Out of Permissible Range 4

6 Absolute Pressure over Permissible Range 5

7 Gas Temperature Out of Range 6

8 Analog Output Alarm Flag 7

9 UART Serial Communication Error 8

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DIAGNOSTIC EVENTS DESCRIPTION

Modbus Serial Communication Error 9

EEPROM R/W Error

Auto Zero Failure Flag

AP Tare Failure Flag

DP ADC Counts Invalid

AP ADC Counts Invalid

Fatal Error

OLED BIT

CODE

There are actually three separate registers:

The Status Diagnostic Event Register, which holds each active alarm event (this is read only)

The Mask Diagnostic Event Register, which allows the user to Enable or Disable monitoring for a particular event

The Latch Diagnostic Event Register, which allows the user to Enable or Disable the latch feature for a particular event

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Each active Diagnostic Event will be indicated on the OLED screen. In addition, the total number of currently active events will be displayed on the first line. A typical display with no active Diagnostic Events is shown in Figure 39:

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Figure 39: Diagnostic Events Status Register (no active events)

A typical display with two active Diagnostic events is shown below:

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IFigure 40: Diagnostic Events Status Register (two active events)

If more than 7 events are displayed, the user can scroll with the joystick UP and DN buttons to see all indicated events. If the event is not latched in the Latch Diagnostic Event Register, it may appear and disappear from the status screen; it will be indicated as long as the actual event is taking place.

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Using the Mask Diagnostic Event Register settings, the user can individually enable (unmask) or disable (mask) each event. The event is enabled if an asterisk appears in the brackets to the right of the event name. If the event is disabled (no asterisk), it will not be processed or indicated in the Events status Register, even if actual conditions for the event have occurred. By default, the meter is shipped from the factory with only one event active: “0 – CPU Temperature Too High”. All other events are disabled. For a typical display with Mask Diagnostic Event Register selection, see Figure 41:

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DiagEvents Mask Reg.: 0 – CPU Temp. High [*]

1 – DP EE Init Err [ ] 2 – AP EE Init Err [ ]

3 – VR Out of Range [ ]

4 – Flow OverLimit [ ]

5 – Pres OverLimit [ ]

6–Tem

Figure 41: Diagnostic Events Mask Register

OverLimit [

In the example shown above, latch features for all events except #0 are

]

disabled. In order to change Mask Diagnostic Event Register settings, the user houls select the desired event with the joystick UP and DN buttons, then press the RIGHT button. The asterisk will appear in or disappear from the brackets to the right of the selected event. The asterisk indicates that the event is enabled. Use the ENT button to accept and save the new Mask Diagnostic Event Register settings to the meter’s nonvolatile memory.

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Using Latch Diagnostic Event Register settings the user can enable (unmask) or disable (mask) the latch feature individually for each event. An event is enabled (unmasked) when an asterisk appears in the brackets to the right of the corresponding event. When an event is not latched (no asterisk on the display), it may appear and disappear from the status screen. It will be indicated as long as the actual even takes place.

By default, the meter is shipped from the factory with the latch feature disabled for all events. A typical display with Latch Diagnostic Event Register selection is shown in Figure 42:

IFigure 42: Diagnostic Events Latch Register

In the example shown above, latch features for all but #0 are disabled. In order to change Latch Diagnostic Event Register settings, the user should select the desired event using the joystick UP and DN buttons, then press the RIGHT button. The asterisk will appear in or disappear from the brackets to the right of the corresponding event name. The asterisk indicates that the event is enabled. To disable an event, the corresponding asterisk must be removed. Use the ENT button to accept and save the new Latch Diagnostic Event Register settings in the meter’s nonvolatile memory.

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DiagEvents Latch Reg.:

0 – CPU Temp. High [*]

1 – DP EE Init Err [ ] 2 – AP EE Init Err [ ]

3 – VR Out of Range [ ]

4 – Flow OverLimit [ ]

5 – Pres OverLimit [ ]

6–Tem

OverLimit [

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The Status Diagnostic Event Register can be reset by selecting the “Reset DiagEvents Reg.” menu option. A typical display with the Status Diagnostic Event Register Reset screen is shown in Figure 43:

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Reset DiagEvents Reg.:

YES

DO YOU WANT

RESET EVENT REG?

Figure 43: Resetting Diagnostic Events Register

When you select the “YES” option, the Event Register will be reset and the following confirmation screen will appear:

***********************

Event Reg. Has

been reset!

***********************

Press any Key...

Figure 44: Confirmation of Diagnostic Events Register Reset

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NOTE:

l and device configuration. Consult your factory customer support

mode representative for more details about ADC troubleshooting.

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Figure 45: Pressure Sensors ADC Diagnostic

Actual content of the ADC Diagnostic screen may vary depending on the

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This menu selection provides raw or average (filtered) ADC counts for gas temperature and pressure sensor temperature readings, which may be useful for Digital Signal Processing (DSP) troubleshooting (read only). A typical display with Temperature ADC Counts is shown in Figure 46:

Figure 46: Temperature Sensors Diagnostics

NOTE:

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Actual content of the ADC Diagnostic screen may vary depending on the

l and device configuration. Consult your factory customer support

mode representative for more details about ADC troubleshooting.

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This menu selection provides information about the meter’s Analog Output settings and DAC counts, as well as Pulse Output (PO) Queue register value, which may be useful for Analog Output and PO circuitry troubleshooting (read only). A typical display with Analog Output and PO Queue values is shown in

Figure 47:

Figure 47: Analog Output and PO Queue Diagnostic

NOTE:



may

vary depending on the model,device configuration, and meter operational

state. Consult your factory customer support representative for more details about Analog Output and 3O troubleshooting.

OOuuttppuuttaanndPPOOQQuueeuueDDiiaaggnn

AA..OOuutt

ppuutt:44--2200mmAA

DDAACUU

ppdd::EEnnaabbllee

DDAA

CCC

oouunnttss: 334488881

OOQQuueeuuee

Actual content of the Analog Output and PO Queue Diagnostic screen

::00//11000

oossttii

6..44..1155..6RReeffeerreenncceVoollttaaggeaann

DDiiaaggnn

This menu selection provides information about current 2.5Vdc reference voltage value as well as different parameters of the Temperature/Pressure Compensation Algorithm, which may be useful for meter troubleshooting (read only). A typical Reference Voltage and DSP Calculation diagnostic screen is shown in Figure 48:

6.5 Multi-Functional Push-Button Operation

The DPM provides the user with a micro push-button switch accessible via a small hole on the right side of the instrument (see Figure 49), which can be used to select/start some important actions for the instrument. The micro push-button switch functionality is available on all DPM models in both analog and digital operation mode.

oossttii

c (rreeaa

Figure 48: Reference Voltage and DSP Calculation Diagnostic

NOTE:



may vary depending on the model, device configuration, and meter operational state. Consult your factory customer support representative for more details about Reference Voltage and DSP Calculation troubleshooting.

ddoonnllyy)

RREEFF

00..00000011

229944..22661111

VVMMCCFF:00..998855557799

Actual content of the Reference Voltage and DSP Diagnostic screen

dDDSSPCCaallccuull

::33111122 22..55008

1144..7788990

330000..11551

aattiioo

Pressing a switch briefly (< 6 sec) will not cause unwanted actions but will provide the currently selected mode for this instrument’s communication port. The response will be with one of three signals, as indicated below:

1 AMBER flashing “Communication Port Disabled” 2 AMBER flashing “RS-232” 3 AMBER flashing “RS-485”

FIGURE 49: DPM INTERFACE CONNECTORS

AND MULTI-FUNCTION PUSH-BUTTON ACCESS HOLE

See Table XXI on the following page for explanations.

TABLE XXI:

LED Indications using the Multi-Function Push-Button During

Normal Running Mode

STATUS LED INDICATION

Amber flashing On/Off every 2 seconds Com. Port Status: 1 – Port disabled 2 – RS-232 3 – RS-485

Amber flashing On/Off every 2 seconds

Green flashing On/Off every 2 seconds

Red constantly On: the user has 14 seconds to select which Totalizer has to be reset or to toggle Communication port mode. The Com. Port toggle sequence is: Disabled Ö RS-232 RS-232 Ö RS-485 RS-485 Ö Disabled

TIME PUSHED

1-6 seconds

6-12 seconds

12-18 seconds

18-24 seconds

2 seconds until the Green LED turns Off 2 seconds until the Green LED turns Off 2 seconds until the Green LED turns Off 2 seconds until the Green LED turns Off

INSTRUMENT ACTION

Pressing a switch briefly (<6 sec) will not cause unwanted actions from the device but will provide currently selected mode for Communication port, depending on the number of Amber flashing:

1. Communication port disabled

2. RS-232

3. RS-485 Releasing the switch during this time will Reset the instrument. The instrument’s program will be restarted, and all warning and error messages will be cleared. During start-up, the instrument will perform a self-test. Releasing the switch during this time will start the meter flow sensor Auto Zero Calibration.

NOTE: First make sure there is absolutely no flow and the meter has been connected to power for at least 15 minutes.

Releasing the switch during this time will switch the user push-button to Totalizers Reset Mode or Communication Interface Mode Change. The user can start push-button entry during the next 14 seconds, and then can select which Totalizer to reset or perform Communication Interface toggle action based on the number of times the push-button is pressed. When the push-button is pressed, in order to validate the single push, watch the Green LED turn On, and do not release the push button until the Green LED turns Off (approx. 2 seconds). Pressing the push-button once during the 14second window will Reset Totalizer#1. When the push-button is released, the Red LED turns On (ready to be pressed).

Pressing the push-button twice during the 14second window will Reset Totalizer#2. When the push-button is released, the Red LED turns On (ready to be pressed).

Pressing the push-button 3 times during the 14second window will Reset Totalizer#1 and Totalizer#2.

Pressing the push-button 4 times during the 14second window will initiate single toggle action for Communication Interface. Each single toggle action performs the following change: Disabled Ö RS-232 RS-232 Ö RS-485 RS-485 Ö Disabled

NOTE:



second timeframe or keep the push-button pressed for the required time (approximately 2 seconds or until Green LED turns Off), no action will take place. Push-Button entry will reset to the default state and the Green LED will be turned On.

7 MAINTENANCE

If the user does not press the Push-Button within a 10-

7..11GGeennee

It is important that be DPM Mass Flow Meter be used only with clean, dry, non-corrosive filtered gases. Liquids may not be metered. Since the restrictor flow element (RFE) consists of small stainless steel channels, it is prone to occlusion due to impediments of large particles or gas crystallization. Other flow passages are also easily obstructed.

Great care, therefore, must be exercised to avoid the introduction of any potential flow impediment. To protect the instrument, we recommend the use of in-line filters: 5P (DPM07) or 20P (DPM17/37/47). There is no other maintenance required. It is good practice, however, to keep the meter away from vibration, hot corrosive environments, and excessive RF or magnetic interference. We recommend that meters be returned to Aalborg service and calibration (see Section 1.3).

7..22CCleeaanniinngg

Before attempting any disassembly of the meter for clearning, we recommend inspecting the flow paths by looking into the inlet and outlet ends of the meter for any debris that may be clogging the flow through the instrument. Remove debris as necessary. If the blockage still exists, contact Aalborg or your local distributor to arrange for repair or cleaning service.

rraa

for repair

CAUTION:

MANDATORY THAT ANY INSTRUMENT BEING RETURNED FOR SERVICE HAS BEEN COMPLETELY PURGED AND NEUTRALIZED OF TOXIC, BACTERIOLOGICALLY INFECTED, CORROSIVE OR RADIOACTIVE CONTENTS.

TO PROTECT SERVICING PERSONNEL, IT IS

CAUTION:

CALIBRATION needed. Aalborg your local distributor for cleaning and recalibration options.

DISASSEMBLY MAY COMPROMISE CURRENT

. After

RFE and flow paths cleaning, a recalibration is

offers

professional calibration support. Contact Aalborg or

8 RECALIBRATION

The recommended period for recalibration of the DPM flow meter is once annually.

Aalborg

Instruments’ Flow Calibration Laboratory offers professional calibration support for Mass Flow Meters using NIST-traceable precision calibrators under strictly controlled conditions. NIST-traceable calibrations are available.

CAUTION:

Instruments' and certified

DPM flow meters can be only calibrated by Aalborg

Flow Calibration Laboratory or an Aalborg authorized trained

calibration facility.

9 RS-235/RS-485 SOFTWARE INTERFACE COMMANDS

9..11GGeennee

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The standard DPM meter comes with an RS-232 interface; an RS-485 interface is optional. For the RS-232 interface, the start character is ! and two hexadecimal characters for the address must be omitted. The protocol described below allows for communications with the unit using either a custom software program or a “dumb terminal”. All values are sent as print ASCII characters.

For the RS-485 interface, the start character is always ! . The command string is terminated with the equivalent of a carriage return; line feeds are automatically stripped out by the DPM. (See Section 3.3 for information regarding communication parameters and cable connections.)

9.2 Commands Structure

The structure of the command string is as follows:

RS-485 !<Addr>,<Cmd>,Arg1,Arg2,Arg3,Arg4<CR> Example: !11,F<CR> RS-232 <Cmd>,Arg1,Arg2,ARg3,Arg4<CR> Example: F<CR> Where: ! Addr RS-485 device address in the ASCII representation of hexadecimal

Cmd The one- or two-character command (see examples below) Arg1 to Arg4 CR Carriage Return character

Start character ** (must only be used for RS-485 option)

(00 through FF are valid). ** (must only be used for R-485 option)

The command arguments (see examples below). Multiple arguments are comma-delimited.



NOTE:

submit the start character with a two-character hexadecimal device address for the RS-232 option.

Several examples of commands are shown below. All assume that the DPM meter has been configured for decimal address 18 (12 hex) on the RS-485 bus:

The default RS-485 address for all units is 11. Never

1. To get currently selected Gas:

The DPM will reply:

2. To get current Flow Rate Alarm

status: The DPM will reply:

3. To get a mass and volumetric flow

reading: The DPM will reply:

4. Set the High and Low Flow Alarm

limit to 90% and 10% of Full Scale flow rate: The DPM will reply:

NOTE:

the global address to any device. When commands with the global address are sent, all devices on the RS-485 bus execute the command



but do not reply with an acknowledgement message.

The global address can be used to change RS-485 address for a particular device without local display and joystick interface with unknown address:

1. Make sure only one device (whose address must be changed) is connected to the RS-485 network.

Address 00 is reserved for global addressing. Do not assign

!12,G<CR> !12,G:0,AIR<CR> (assuming the Current Gas is #0, calibrated for AIR)

!12,FA,R<CR> !12,FAR:N<CR> (assuming no flow alarm conditions)

!12,F<CR> !12,50.0,50.3<CR> (assuming the mass flow is at 50% FS)

!12,FA,C,90.0,10.0<CR> !12,90.00,10.00,<CR>

2. Type the memory write command with the global address: !00,MW,118,XX,<CR> where XX, the new hexadecimal address, can be from 01 to FF.

After the new address has been assigned, a device will accept commands with the new address.

NOTE:

devices on the same RS-485 bus. If two or more devices with the same address are connected to one RS-485 network, a



communication collision on the bus will result, leading to communication errors.

Do not assign the same RS-485 address to two or more

7$%/(;;,,AALBORG DPM ASCII SOFTWARE INTERFACE COMMANDS

Note: An “*” indicates power up default settings.

An “**”indicates optional feature not available on all models.

<MF>,<VF>,<Total#1

Value>,<Total#2 Value>,

COMMAND SYNTAX

<M Value>, <V Value> (Actual

mass and volumetric ﬂ ow in

current mass and volumetric

engineering units)

<M Value> (Actual mass ﬂ ow

in current mass engineering

units)

<V Value> (Actual volumetric

ﬂ ow in current mass

engineering units)

<Gas Temperature>,

<Gas Pressure>,

<Flow Alarm Status>,

<Temp. Alarm Status>,

<Press. Alarm Status>,

<Alarm Events Register>,

Example:

25.4,23.2,354.2,0.0,24.8,

14.95,D,N,D,0x0,0x0

ARGUMENT

(read only)

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

1 F NO

DESCRIPTION No.

ﬂ ow reading in current MEU and VEU

NAME

COMMAND

Flow Requests the current mass and volumetric

ARGUMENT

(read only)

2 FM NO

reading in current MEU

Mass Flow Requests the current mass ﬂ ow

ARGUMENT

(read only)

3 FV NO

Requests the current volumetric ﬂ ow

reading in current VEU

Volumetric

Flow

4 PI NO

Read Process Information (PI) parameters:

Process



ARGUMENT

(read only)

Mass Flow Rate (MEU)

Volumetric Flow Rate (VEU)

Totalizer#1 value (MEU)

Totalizer#2 value (MEU)

Gas Temperature (TEU)

Gas Pressure (PEU)

Flow Alarm Status [D,N,H,L]

Information

(PI)

Alarm Events Register (Hex)

Events Register (Hex)

V. Alarm Status [D,N,H,L]

Current status of the

Temp. Alarm Status [D,N,H,L]

Current status of Diagnostic

Pres

Diagnostic Events below.

NOTE: See list of the Alarm and

COMMAND SYNTAX

AE:<Value>

Example: AE:0x0

(read Alarm Events

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

5 AE NO ARGUMENT

AER:0x0

status register)

(reset Alarm Events

AEM:0x1

NO ARGUMENT

(read current

status register to

0x0000)

(Read/Set Alarm

AEM:0x11

settings)

<Value>

Events Mask

0x0000-0x0FFF

Set new value

NOTE: all 6

characters are

required

AEL:0x1

NO ARGUMENT

(read current

settings)

(Read/Set Alarm

Events Latch

AEL:0x11

<Value>

0x0000-0x0FFF

Set new value

NOTE: all 6

characters are

required

DESCRIPTION No.

Read/Set/Reset value of Alarm Events Registers:

Status Register: (Read/Reset)

Mask Register: (R/W)

Latch Register: (R/W)

See list of the Alarm Events below:

0 FLOW_ALARM_HIGH 0x0001

1 FLOW_ALARM_LOW 0x0002

2 FLOW_ALARM_RANGE 0x0004

NAME

COMMAND

Alarm

Events

Registers

3 TOTAL1_HIT_LIMIT 0x0008

4 TOTAL2_HIT_LIMIT 0x0010

5 PRES_ALARM_HIGH 0x0020

6 PRES_ALARM_LOW 0x0040

7 PRES_ALARM_RANGE 0x0080

8 TEMP_ALARM_HIGH 0x0100

9 TEMP_ALARM_LOW 0x0200

A TEMP_ALARM_RANGE 0x0400

B PULSE_OUT_QUEUE 0x0800

7

C PASSWORD_EVENT 0x1000

D POWER_ON_EVENT 0x2000

COMMAND SYNTAX

DE:<Value>

Example: DE:0x0

(read Diagnostic

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

6 DE NO ARGUMENT

DER:0x0

Events status

(reset Diagnostic

DEM:0x1

NO ARGUMENT

(read current

settings)

Events status regis-

ter to 0x0000)

(Read/Set Diag-

nostic Events Mask

DEM:0x101

<Value>

0x0000-0x0FFF

Set new value

NOTE: all 6

DEL:0x1

characters are

required

NO ARGUMENT

(read current

(Read/Set Diag-

DEL:0x101

settings)

<Value>

0x0000-0x0FFF

Set new value

nostic Events Latch

NOTE: all 6

characters are

required

DESCRIPTION No.

Read/Set/Reset current value of the Diagnostic

Events Registers

Status Register: (Read/Reset)

Mask Register: (R/W)

Latch Register: (R/W)

See list of the Diagnostic Events below:

0 CPU_TEMP_HIGH 0x0001

NAME

COMMAND

Diagnostic

Events

Registers

1 DP EE INIT ERROR 0x0002

2 AP EE INIT ERROR 0x0004

3 VREF_OUT_OF_RANGE 0x0008

4 FLOW ABOVE LIMIT 0x0010

7

5 AP OUT OF RANGE 0x0020

6 G TEMP OUT OF RANGE 0x0040

7 ANALOG OUT ALARM 0x0080

8 SER COMM FAILURE 0x0100

9 MB COMM FAILURE 0x0200

A EEPROM FAILURE 0x0400

B AUTOZERO FAILURE 0x0800

C AP TARE FAILURE 0x1000

D DP PRESSURE INVALID 0x2000

E AP PRESSURE INVALID 0x4000

F FATAL_ERROR 0x8000

<T Value> (Actual gas tem-

COMMAND SYNTAX

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

7 GT NO ARGUMENT

perature in current temp.

engineering units)

Example: 24.51

<P Value> (Actual gas pres-

sure in current pressure

engineering units)

Example: 14.66

(read only)

8 GP NO ARGUMENT

Example: G:0,AIR

0 – Gas Index

AIR – Gas name

(read current active

Gas index and Gas

Name)

9 G NO ARGUMENT

Example: G:5,He

5 – Gas Index

He – Gas name

<Value>

[0-128]

Select new Gas

NOTE: Instruments

w/o Corrosive

Gases support only

129 gases [0-128]

DESCRIPTION No.

Requests the Gas Temperature reading

NAME

COMMAND

Read Gas

in current TEU

Temperature

Requests the Gas Pressure reading

Read Gas

in current PEU

Pressure

NOTE: Instrument conﬁ gured for non-corrosive

gases support indexes 0 to 128 (see list of all

supported gases).

Gas Read / Select Active Gas Indexes:



COMMAND SYNTAX

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

DI:5,Helium,0.200,

Sml/min,ml/min,E,D,0,1

5 – Gas index 5(Helium)

0.200 – full scale (L/min)

Sml/min – current MEU

ml/min – current VEU

(Read Only)

10 DI NO ARGUMENT

installed (Not Supported)

E – Totalizer#1 Enabled

D – Totalizer#2 Disabled

0 – Analog Output set to 0-5 Vdc

1 – ModBus interface H/W is not

DESCRIPTION No.

NAME

COMMAND

Device Info Read device conﬁ guration info:

D – Disabled

E – Enabled

D – Disabled

E – Enabled

- Currently selected Gas (index, name)

- Full scale range (L/min)

- Mass ﬂ ow Units of measure

- Volumetric ﬂ ow Units of Measure

- Totalizer#1 mode

- Totalizer#2 mode

0 – 0-5 Vdc

-Analog Output Mode



0 – Installed

1 – 0-10 Vdc

2 – 4-20 mA

-ModBus H/V status [0/1]

1 – Not Installed

COMMAND SYNTAX

FAC:40.10,20.50

<Value>

(low limit,

<Value>

(high limit,

(set Mass Flow

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

11 FA C

%F.S.)

[0.0 – 109.9]

%F.S.

%F.S.)

[0.1 – 110.0]

%F.S.

Alarm High

and Low limits

parameters)

FAA:<Value>

Example: FAA:5

<Value>

[0-3600]

(Flow Alarm

action delay in

sec.)

FA:E

(enable ﬂ ow

alarm)

FA:D

(disable ﬂ ow

alarm)*

FAR:N (no alarm)

FAR:H (high alarm)

FAR:L (low alarm)

FAS:M,Hv,Lv,A,L,P

Example:

(5ead current

status)

(Read current

FAS:E,40.00,20.00,2,0,8

FAP:<Value>

<Value>

settings)

Example: FAP:60

[0-3600]

(Flow Alarm

FAL:<Value>

<Value>

Power Up delay

in sec.)

where:

Value = 0 – 1

Example: FAL:0

(0-disabled*)

(1-enabled)

(Latch mode)

DESCRIPTION No.

ﬂ ow alarms.

Note: High alarm value has to be more

than Low alarm value.

Meter Flow Alarm conditions:

Flow t High Limit = H

NAME

COMMAND

Flow Alarms Sets / reads the parameters of the mass

Flow d Low Limit = L

Low < Flow < High = N

Alarm Settings Reply parameters:

M – mode (E/D)

Hv – High settings value

Lv – Low settings value

A – Action Delay (sec)



L – Latch mode (0-1)

P – Power Up delay (sec)

COMMAND SYNTAX

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

TAC:333.25,263.15

<Value>

(low limit,

Kelvin)

[253.15°K –

343.14°K]

<Value>

(high limit, Kelvin.)

[253.16 °K –

343.15 °K]

(set Temp Alarm

High and Low limits

parameters)

12 TA C

TAA:<Value>

Example: TAA:5

TA:E

<Value>

[0-3600]

(Temp Alarm action

delay in sec.)

(enable 7emp $larm)

TA:D

(disable temp alarm)*

TAR:L (low alarm)

R (read current status) TAR:H (high alarm)

TAP:<Value>

TAS:M,Hv,Lv,A,L,P

Example:

(Read current set-

Example: TAP:60

TAS:E,333.25,263.15,2,0,10

<Value>

[0-3600]

tings)

(Temp Alarm Power

Up delay in sec.)

TAL:<Value>

where:

Value = 0 – 1

Example:

<Value>

(0-disabled*)

(1-enabled)

(Latch mode)

TAL:0

DESCRIPTION No.

Sets / reads the parameters of the

temperature alarms.

Note: High alarm value has to be

more than Low alarm value.

NAME

COMMAND

Temperature

Alarms

Meter Temperature Alarm conditions:

Temp. t High Limit = H

Temp. d Low Limit = L

Low < Temp. < High = N

Alarm Settings Reply parameters:

M – mode (E/D)

Hv – High settings value

Lv – Low settings value



A – Action Delay (sec)

L – Latch mode (0-1)

P – Power Up delay (sec)

COMMAND SYNTAX

PAC:60.00,10.00

<Value>

(low limit, PSIA)

<Value>

(high limit, PSIA)

. Alarm

(set Pres

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

13 PA C

PAA:<Value>

Example: PAA:5

[0.0 –90.99]

PSIA

[0.1 –100.00]

PSIA

<Value>

[0-3600]

High and Low limits

parameters)

(Press. Alarm action

delay in sec.)

PA:E

(enable 3ress.

$larm)

PA:D

(disable 3ress.

$larm)*

PAR:N (no alarm)

PAR:H (high alarm)

PAR:L (low alarm)

PAS:M,Hv,Lv,A,L,P

Example:

(read current status)

(Read current

PAS:E,60.00,10.00,2,0,5

PAP:<Value>

Example: PAP:60

PAL:<Value>

where:

<Value>

[0-3600]

<Value>

(0-disabled*)

settings)

(Pres. Alarm Power

Up delay in sec.)

(Latch mode)

Value = 0 – 1

Example:

PAL:0

(1-enabled)

DESCRIPTION No.

Sets / reads the parameters of the

pressure alarms.

Note: High alarm value has to be

more than Low alarm value.

NAME

COMMAND

Pressure

Alarms

Meter Pressure Alarm conditions:

Press.. t High Limit = H

Press.. d Low Limit = L

Low < Press. < High = N

Alarm Settings Reply parameters:

M – mode (E/D)

Hv – High settings value

Lv – Low settings value

A – Action Delay (sec)

L – Latch mode (0-1)



P – Power Up delay (sec)

COMMAND SYNTAX

FL R:FL

FH R:FH

FR R:FR

PL R:PL

PH R:PH

PR R:PR

TL R:TL

TH R:TH

TR R:TR

T1 R:T1

T2 R:T2

PO R:PO

R:D

AE R:AE

DE R:DE

M R:MS (read current

settings)

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

14 R D R:D

DESCRIPTION No.

Read / Set SSR Relay

Assignment

NAME

COMMAND

Relay

Assignment

D - no action (SSR disabled*)

FL - Low ﬂ ow alarm

FH - High ﬂ ow alarm

FR - Range between High &

Low ﬂ ow alarms

PL - Low pressure alarm

PH - High pressure alarm

PR - Range between High &

Low pressure alarms

TL - Low temperature alarm

TH - High temperature alarm

TR - Range between High &

Low temperature alarms

T1 - Tot#1 reading > limit

T2 - Tot#2 reading > limit



PO - Pulse Output

AE - Alarm Events

DE - Diagnostic Events

M - Manual On (energized)

closed.

the normally open contact is

NOTE: when SSR is energized

COMMAND SYNTAX

T1Z or T2Z

(Reset to zero)

2 (Totalizer #2)

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

15 T 1 (Totalizer #1)

T1C:2.5, 0.0 (limit not required)

T2C:2.0,20580.5

T1P:10 or T2P:20

T1:D or T2:D

T1:E or T2:E

<value> (Limit

volume in current

volume based EU)

<value> (start totalizer

at ﬂ ow)

%FS [0.0 – 100.0]

<value> (0-3600 sec.)

C –

Start ﬂ ow and Event

Condition

P – Power On Delay

(disable totalizer)*

(enable totalizer)

T1R:<value> or

T2R:<value>

(in current EU)

T1S:Mode,StartFlow,LimitVolume,

PowOnDelay, AutoResetMode,

AutoResetDelay

(read current totalizer

volume reading)

(read current

settings status)

Example: T1S:E,0.5, 2045.2,10,0,5

T1A:0 - disabled

Or T2A:1 - enabled

T1I:2 Or T2I:0

T1B or T2B

<value> [0-1]

0 – Disable 1 – Enable

<value>

[0-3600 sec.]

Set Auto Reset mode

Set Auto Reset Interval delay

Restore Totalizer

value from EE backup

T1L:0 or T2L:0

T1L:1 or T2L:1

No Argument

(read Lock status)

<value> [0-1]

Set Lock mode

0 - Unlock 1 - Lock

Totalizer Lock status

read / set

DESCRIPTION No.

the ﬂ ow Totalizers.

NOTE:

NAME

COMMAND

Totalizers Sets and controls action of

Us support Count

Start totalizer at Flow value has to

be entered in %FS (0.0 – 100.0)

Limit volume has to be entered in

currently selected mass EU

If Totalizer hit limit event is not

required, set “Limit Volume”

value (argument 4) to zero.

Totalize

Up mode only.



If Auto Reset mode is Enabled the

Totalizer volume will be reset to

zero as soon as Totalizer reading

reaches “Limit Volume” value.

Totalizers reading are stored in

EEPROM (non volatile) memory. Power

cycle will not affect Totalizers reading.

In addition Totalizers reading are

backed up in separate EEPROM

partition with 6 minutes interval. In

case of error Totalizers reading may

be restored from backup location.

Totalizers cannot be reset if Reset

Lock parameter value set to 1.

COMMAND SYNTAX

AOM:<Value>

Example:

(Returns Current

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

16 AO M No Argument

AOM:0

AOM:<Value>

Example:

AOM:1

Analog Output mode

settings)

<Value>[0-2]

Set new Analog

Output mode settings

AOS:N

(Returns Current

Analog Output alarm

status)

S No Argument

DESCRIPTION No.

Sets / Reads Meter Analog Output set-

tings and alarm status.

Device Analog Output mode: Settings:

0 – 0-5 Vdc

1 – 0-10 Vdc

2 – 4-20 mA

NAME

COMMAND

Analog

Output

Device Analog Output alarm status:

N – No Alarm (normal operation)

Y – Alarm is On (abnormal conditions

are detected)



COMMAND SYNTAX

PU:<value>

Example:

PU:10

PT:<value>

Example: PT:100

ms]

P:D

P:E

PQ:<value>

(number of pulses in Queue)

PF:1.0

PS:Mode,FlowStart,

Unit/Pulse,PulseTimeInterval

Example:

PS:E,1.0,1.666,100

<Value>

(Unit/Pulse)

In current E.U.

Set Units Per Pulse

Parameter.

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

17 P U

DESCRIPTION No.

programmable Pulse Output circuitry.

NOTE:

Unit/Pulse value has to be entered

NAME

COMMAND

Pulse Output Sets and controls action of the

(example:

25-3276

10 litr/pulse)

<value>

[

Set Pulse active Time

in ms

in currently selected EU.

EU has to be not time based

It is recommended to set the unit/pulse

value equal to the meter maximum

ﬂ ow in the same units per second

<value>

(0.0–100.0%FS)

(disable pulse

output)*

(enable pulse output)

(read current pulse

output Queue value)

Set Flow Start value

equivalent. This will limit the pulse to

no faster than one pulse every second.

Example:

Maximum ﬂ ow rate:

600 liter/min (600 liter/min = 10 liters

per second)

If Unit/Pulse is set to 10 liters per

pulse, the output will pulse once every

second (F=1 Hz).

8

(read setting status)

Pulse active time in ms has to be at

least twice less than pulse period (1/F).

In this example any value between 50

DQG 500 ms will be accepWDEOH.

COMMAND SYNTAX

Example:

S:< mode value >

S:0

Example:

S:<mode value>

Set new Status LED

<mode value> [0-5]

Status LED mode)

(Returns Current

S:1

%FS* U: %FS

mode value

Sml/min U: SmL/min

Sml/sec U: SmL/sec

SuL/min U: SuL/min

SL/min U: SL/min

SL/sec U: SL/sec

Sml/hr U: SmL/hr

SL/day U: SL/day

SL/hr U: SL/hr

Sm3/day U: Sm3/day

Sm3/hr U: Sm3/hr

Sm3/min U: Sm3/min

Sf3/hr U:Sf3/hr

Sf3/min U:Sf3/min

Sf3/sec U:Sf3/sec

U: gr/sec

gr/min U: gr/min

gr/sec

Sf3/day U:Sf3/day

U: gr/hr

gr/day U: gr/day

gr/hr

kg/day U: kg/day

kg/hr U: kg/hr

kg/min U: kg/min

U: lb/min

lb/min

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

18 S No Argument

DESCRIPTION No.

2 – Alarm Events only

1 – F. Alarm & Totalizers only

0 – Normal

mode:

NAME

COMMAND

Status LED Read and set current Status LED

19 U

Note: The units of the totalizer

rate and totalizer reading.

Set units of measure for mass ﬂ ow

5 – ModBus interface events

4 – UART interface events

3 – Diagnostic Events

measure

Units of

Mass Flow

k-Factor value represents conver-

For user deﬁ ned units:

per unit time.

output are mass ﬂ ow units and not

8

3 – days

2 – hours

1 – minutes

0 – seconds

Time base argument:

sion value to L/min.

0 – do not use density

1 – use density

Density argument:

COMMAND SYNTAX

U: oz/min

U: NuL/min

U: NmL/sec

U: NL/sec

U: NL/min

U:USER

U:user, K-Factor,

TimeBase,UseDensity

[0 or 1]

0-second

No Argument

Set previously deﬁ ned USER unit

<k-factor value>

[>0.0]

Example:

U:USER,1.5,1,0

U:<EU name>

0 – No

1 – Yes

1-Minute

2-Hour

3-Day

Example: U:SmL/min

lb/hr U: lb/hr

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

DESCRIPTION No.

NAME

COMMAND

lb/day U: lb/day

oz/sec U: oz/sec

oz/min

NuL/min

Nml/sec

Nml/min U: NmL/min

Nml/hr U: NmL/hr

NL/sec

NL/min

NL/hr U: NL/hr

NL/day U: NL/day

Nm3/min U: Nm3/min

Nm3/hr U: Nm3/hr

Nm3/day U: Nm3/day

Nf3/sec U:Nf3/sec



Nf3/min U:Nf3/min

Nf3/hr U:Nf3/hr

Nf3/day U:Nf3/day

USER

(user deﬁ ned)

USER

(user deﬁ ned)

Change parameters of the user

deﬁ ned unit

No Argument (status)

Returns currently selected units.

COMMAND SYNTAX

%FS* VU: %FS

uL/min VU: uL/min

ml/sec VU: mL/sec

ml/min VU: mL/min

ml/hr VU: mL/hr

L/sec VU: L/sec

L/min VU: L/min

L/hr VU: L/hr

L/day VU: L/day

m3/min VU: m3/min

m3/hr VU: m3/hr

m3/day VU: m3/day

f3/sec VU: f3/sec

f3/min VU: f3/min

f3/hr VU: f3/hr

VU: mL/min

CS:<Tvalue>,<Pvalue>

Example: S:70.0,14.696

CS:<Tvalue>,<Pvalue>

Example: S:70.0,14.696

<Pres. Value>

[PSIA]

[F]

No Argument (Returns

Current STP values)

f3/day VU: f3/day

No Argument (status)

Returns currently selected units

Read/Set Units Standard

Conditions Temp [F],

Pressure [PSIA]

CT:<value>

Example: CT:1024.2

CT:Z

CN:<Tvalue>,<Pvalue>

Example: N:32.0,14.696

<Pres. Value>

[PSIA]

No Argument (read

timer)

Reset Timer

[F]

Read/Reset Meter main

Calibration / Maintenance Timer

Read/Set Units Normal

CN:<Tvalue>,<Pvalue>

Example: N:32.0,14.696

No Argument (Returns

Current STP values)

No Argument CP:148.7

Conditions Temp [F],

Pressure [PSIA]

Read Time elapsed from

Meter Power Up in hours

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

20 VU

DESCRIPTION No.

Set units of

NAME

COMMAND

Volumetric

measure for

volumetric ﬂ ow rate

Flow Units of

measure



Sets/Reads Calibration related

parameters.

NOTE: Factory set Standard

conditions: 70.00 "F and 14.6959

PSIA

NOTE: Factory set Normal

conditions: 32.00 °F and 14.6959 PSIA

Hours since last time unit was

calibrated.

Calibration

Settings

NOTE: has to be reset to zero after

calibration.

Power Up pilot timer will be set to

zero each time power is removed

or meter is reset.

COMMAND SYNTAX

SCM:<value>

Example: SCM:E

SCM:<value>

Example: SCM:E

SCR:<value>

Example: SCR:1

SCR:<value>

Example: SCR:1

[E/D]

No Argument (Returns

current Mode)

[1-255]

No Argument (Returns

current setting value)

Read/Change Device Flow Sig-

nal Conditioner NLES mode

E – Enabled*

D – Disabled (No Conditioning)

Flow Running Average Damping

[1-255] samples

1 – Disabled*

Example:

SCA:0.20,0.80

<a1_value>

[0.01- 0.99]

<a0_value>

[0.01- 0.99]

No Argument

(Returns Current

AP Sensor Compensated signal

conditioning NLES A0 and A1

parameters (do not change

SCF:4

SCF:<value>

settings values)

<new value> [1-255] SCF:<value>Example:

No Argument (Returns

factory default settings unless

instructed by tech support)

AP Sensor Running Average

Damping [1-255] samples

Example: SCF:4

Example:

SCP:E

Example: SCP:E

SCD:<value>

<D1_value>

Current settings values)

No Argument (Returns

Current settings values)

[E/D]

<D0_value>

1 – Disabled*

Read/Change Device AP Signal

Conditioner NLES mode

E – Enabled*

D – Disabled

Example: SCD:0.20,0.80

SCD:<value>

Example: SCD:0.20,0.80

[0.01- 0.99]

No Argument

(Returns Current

AP Sensor Compensated signal

conditioning NLES D0 and D1

parameters (do not change

SCT:10

SCT:<value>

Example: SCT:10

settings values)

<new value> [1-255] SCT:<value>Example:

No Argument (Returns

current setting value)

factory default settings unless

instructed by tech support)

Temp Running Average Damp-

ing [1-255]

1 – Disabled

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

22 SC

DESCRIPTION No.

Sets/Reads meter Signal

Conditioner Parameters

NAME

COMMAND

Signal

Conditioner

Settings

NOTE: The signal conditioner param-

eters were set on the factory to keep

best performance. Do not change

Signal Conditioner parameters un-

less instructed by factory technical

support representative!

NOTE: NLES parameter a1 must be

more than a0. Similar NLES

parameter D1 must be more than D0.



COMMAND SYNTAX

LC:<value>

Example: LM:S

LM:<value>

Example: LM:S

LM:<value>

(Returns Current settings)

No Argument

S or D

D - Dynamic

S - Static

LCD Process Screen Mode:

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

23 L

Example: LO:900

LO:<value>

LB:127

LB:<value> Example:

Example: LB:127

LB:<value>

Example: LC:6

[1-36000]

No Argument

[1-255]

No Argument LC:<value> Example: LC:6

[1-128]

OLED Screen Saver Time

Level: [1-255]

OLED operational Brightness

ness Level: [1-128]

OLED Screen Saver Bright-

Example: LP:2

LP:<value>

Example: LP:2

LP:<value>

LO:<value> Ex.: LO:900

(Returns Current settings)

No Argument

[0 - 3]

No Argument

3 – OLED off

2 – Vertical Scrolling mode

1 – Low Brightness mode

0 – Screen Saver Disabled

OLED Screen Saver Mode

[1-36000] seconds

Delay before activation:

enabled: 0x01 and 0x02)

(only ﬁ rst two screens are

Example: LS:0x03

LT:<value> Example:T:5

ExampleLT:5

LT:<value>

Current settings)

No Argument (Returns

No Argument

<New Value>[1-3600]

Mask register

OLED Process Screens

Interval in sec. (for dynamic mode)

OLED Process Screen Time

ExampleLD:1

LD:<value>

ExampleLD:1

LD:<value>

(all 6 screens are enabled)

Example: LS:0x3F

Current settings)

No Argument (Returns

[0-1]

characters are required)

0x0001–0x003F ( all 6

<Value>

1 – Elevated (+1)

point precision: 0 - Normal

OLED Flow Reading decimal

DESCRIPTION No.

parameters**.

Sets/Reads OLED related

NAME

COMMAND

Screens

Process

OLED and

below:

See list of the Process Screens

Clear bit – Disable Screen

Set bit – Enable Screen

0x00FF – screen mask (8 bits wide).

Process Screens Mask register:

Argument 1 = S

Settings**

disabled.

NOTE: Screen #1 (0x01) cannot be

0x20 – Meter Troubleshooting

0x10 – Meter Status Info

0x08 – Meter Conﬁ guration Info

0x04 – M Flow Rate / V Flow Rate

0x02 – M Flow Rate / Totalizer#2

0x01 – M Flow Rate / Totalizer#1



 command returns

current settings.

submitted

When Argument #2 is not

N – Display is not Installed

Y – Display Installed

arguments will return OLED status:

“L” command without any

COMMAND SYNTAX

LA:<value>

Example: LA:1

[0-25] samples

OLED Flow Running Average

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

LA:<value>

Example: LA:1

LE:<value>

Example: LE:0.01

LE:<value>

Example: LE:0.01

L:Y

No Argument

(Returns Current settings)

[0.0-0.99] %FS

No Argument

(Returns Current settings)

[0-25]

OLED Flow reading Dead

Band in % F.S. [0.0 - 0.99]

No Argument Returns OLED

Example: ZV,589

NOTE: For proper result

meter has to be connected

No Argument ZV:< Value>

No Argument ZN

support status: Y or N

Display current Zero Value

Start Sensor Auto Zero

calibration now.

NOTE: make sure absolutely

24 Z

to power for at least 15

minutes prior to Auto Zero

calibration

Ex: ZS:7492,70581,N

APZ:<OffsetValue>,<ADC

value>,<TempCounts>,<A

No Argument ZS: <T value>,<ADC value>,

No Argument

(Returns Current settings

no ﬂ ow through the meter!

Display Flow Auto Zero

Status

Absolute Pressure Sensor

Zstatus>

Example: APZ:-0.0266,-

640002,839,N

ZA:<value>

Example: ZA.

and status)

[13.1 – 15.99] PSIA

Tare request and status

NOTE: make sure absolutely

no ﬂ ow through the meter!

New AP Value must be taken

from reference AP standard!

DESCRIPTION No.

NAME

COMMAND

parameters

WARNING: make sure absolutely no

ﬂ ow through the meter during Sensor

Zero offset calibration!

NOTE: For proper result meter has to

be connected to power for at least 15

minutes prior to Auto Zero calibration.

Auto Zero Status return parameters:

<T value> - Current Tare value

<ADC value> - Current ADC value

Auto Zero Sets/Reads Meter Auto Zero related



AZ Status:

N – Auto Zero Not Started

I – Auto Zero In Process

F – Auto Zero Failed

D – Auto Zero is Done (Success)

WARNING: make sure meter is open to

atmosphere and absolutely no ﬂ ow

through the meter during AP Sensor

tare procedure! New AP Value must be

taken from reference AP standard in PSIA!

COMMAND SYNTAX

barA PU: barA

psiA PU:PSIA

kPaA PU: kPaA

hPaA PU: hPaA

mbarA PU: mbarA

g/cm2A PU: g/cm2A

atm PU: atm

MPaA PU: MPaA

mmHgA PU: mmHgA

inHgA PU: nHgA

kg/cmA PU: kg/cmA

%FS PU: %FS

TorrA PU: TorrA

inH2OA PU: inH2OA

cmH2OA PU: cmH2OA

PU:PSIA

R TU:R

K TU:K

C TU:C

F TU:F

(Return Current settings)

No Argument

TU:F

(Return Current settings)

No Argument

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

25 PU

DESCRIPTION No.

pressure sensor full scale range.

%FS units relative to the absolute

Measure

Sets/Reads Pressure Units of

NAME

COMMAND

Measure

Units of

Pressure



26 TU

Measure

Sets/Reads Temperature Units of

Measure

Units of

Temperature

COMMAND SYNTAX

Command Argument 1 Argument 2 Argument 3 Argument 4 Response

MBB:<Baud Rate

Value>Example:

MBB:9600

No Argument

(Return Current

settings)

<Baud Rate

Value >

ModBus interface baud

rate parameter:1200,

2400,4800,9600*,19200,

38400,57600,115200

27 MB

MBP:<Parity Value>

Example: MBP:0

No Argument

(Return Current

settings)

<Parity Value > MBP:0

ModBus interface Parity:

0 – None*

1 – ODD

2 – EVEN

MBS:<Stop Bits Value>

Example: MBS:2

MBA:<Adress Value>

No Argument

(Return Current

settings)

<Stop Bit Value> MBS:2

No Argument

ModBus interface Stop

Bits: [1 or 2*]

Example:MBA:11

MBD: MgCtr,SRSErrCtr,

aveMsgCtr,ORErrCtr

Example:MBD:1,0,0,0

(Return Current

settings

<AddressValue> MBA:11

No Argument

(Return Current

settings

ModBus slave device

address: [1-247]

Factory default address:11

Diagnostic of ModBus state

machine communication

counters

MBR:Done

No Argument

(Reports command

receiving)

Reset ModBus

communication Port and

<Value> Command:

ModBus state machine.

0 to 413 (EEPROM

Memory Index)

115 to 413

28 MR

29 MW

MW,XXX,<Value>

where: XXX= EEPROM

Index

Reply: Example:

MW,101.3

(EEPROM Memory

Index) NOTE: EEPROM

indexes 0-114 are read

only!

DESCRIPTION No.

– Message Counter

Sets/Reads meter ModBus Communication

settings and address (optional)**

Diagnostic Command (argument D) returns following

parameters:

MsgCtr

SRSErrCtr – CRC Error Counter

SlaveMsgCtr – Slave Message Counter

ORErrCtr – Overrun Error Counter

NAME

COMMAND

ModBus **

Communication

settings and

address

(optional)



Reads the value in the speciﬁ ed EEPROM memory

location.

Writes the speciﬁ ed value to the speciﬁ ed memory location.

WARNING: Use Carefully, can cause unit to malfunction.

(Note: Some addresses are write protected!)

WARNING: The meter EEPROM parameters were set on

the factory to keep best performance. Do not change

Read EEPROM

Memory

Write

EEPROM

Memory

EEPROM parameters unless instructed by factory

technical support representative!

UART Error Codes:

1 – Command Not Supported or Back Door is not enabled. 2 – Wrong# of Arguments 3 – Address is Out of Range (MR or MW commands) 4 – Wrong# of the characters in the Argument 5 – Attempt to alter Write-Protected Area in the EEPROM 6 – Proper Command or Argument not found 7 – Wrong value of the Argument 8 – Manufacturer-specific information EE access KEY (wrong key or key is disabled)

Alarm Events codes and bit position:

Code

0 1 2 FLOW_ALARM_RANGE 3 4 5 6 7 PRES_ALARM_RANGE 8 9 A B C D

Diagnostic Events codes and bit position:

Code

0 1 2 3 VREF_OUT_OF_RANGE 4 5 6 7 8 9 A B C D E F

Event Description Bit position

FLOW_ALARM_HIGH FLOW_ALARM_LOW

TOTAL1_HIT_LIMIT TOTAL2_HIT_LIMIT PRES_ALARM_HIGH PRES_ALARM_LOW

TEMP_ALARM_HIGH TEMP_ALARM_LOW TEMP_ALARM_RANGE PULSE_OUT_QUEUE PASSWORD_EVENT POWER_ON_EVENT

Event Description Bit position

CPU_TEMP_HIGH DP EE INIT ERROR AP EE INIT ERROR

FLOW ABOVE LIMIT AP OUT OF RANGE G TEMP OUT OF RANGE ANALOG OUT ALARM SER COMM FAILURE MB COMM FAILURE EEPROM FAILURE AUTOZERO FAILURE AP TARE FAILURE DP PRESSURE INVALID AP PRESSURE INVALID

FATAL_ERROR

0x0001 0x0002 0x0004 0x0008 0x0010 0x0020 0x0040 0x0080 0x0100 0x0200 0x0400 0x0800 0x1000 0x2000

0x0001 0x0002 0x0004 0x0008 0x0010 0x0020 0x0040 0x0080 0x0100 0x0200 0x0400 0x0800 0x1000 0x2000 0x4000 0x8000



100..

TTRR

OOUUBBLLEESSHHOOOO

TTIINNG

100..1CCoommmmoonnCCoonnddiittiioonnss

Your DPM Mass Flow Meter was thoroughly checked at numerous quality control points during and after manufacturing and assembly operations. It was calibrated according to your desired flow and pressure conditions for a given gas or mixture of gases.

It was carefully packed to prevent damage during shipment. Should you feel that the instrument is not functioning properly, please check first for these common conditions:

x Are all cables connected correctly? x Are there any leaks in the installation? x Is the power supply correctly selected according to

requirements? When several meters are used, a power supply with appropriate current rating should be selected.

x Were the connector pinouts matched properly? x When interchanging with other manufacturers’ equipment,

cables and connectors must be carefully wired for correct pin configurations. Check these.

x Is the pressure differential across the instrument sufficient?

Also check the Troubleshooting Guide provided in Section 10.2.

100..2Trroouubblleesshh

oooottiinngg

TABLE XXIII: TROUBLESHOOTING GUIDE

NO. INDICATION

1 No zero reading, with

no flow condition.

2 Status LED indicator

and OLED Display remain blank when unit is powered up. No response when flow is introduced from analog outputs 0-5Vdc or 4-20 mA.

3 OLED Display

reading and/or analog output 0-5Vdc signal fluctuates in wide range during flow measurement.

GGuuiidd

LIKELY REASON

Flow Tare procedure was not performed properly.

Power supply is bad or polarity is reversed.

PC board is defective. Return DPM to factory for repair.

Output 0-5Vdc signal (pins 6 [+] and 4 [-] of the MiniDIN connector) is shorted on the GND or overloaded.

Perform Auto Zero Procedure (see section

6.4.4 "Sensor Zero Calibration").

Measure voltage on pins 7 (+) and 8 (-) of the 8-pin MinDIN connector. If voltage is out of specified range, then replace power supply with a new one. If polarity is reversed (reading is negative), make correct connection.

Check external connections to pin 6 (+) and 4 (-), of the MiniDIN connector. Make sure the load

UHVLVWDQFHLVPRUHWKDQȍ

SOLUTION

9

Aalborg DPM Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual