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L-770HP--E

Parameter

Descriptions

Setting range

Standard value

H/L alarm assign

Assigning of H/L alarm

Mass Flow / Volume Flow

Density / Temp

Counter 

Mass Flow

H/L alarm type

H/L alarm type

High alarm / Low alarm

H/L alarm

High Alarm

High alarm point

H alarm setting value

Depends on H/L alarm assign.

0

Low alarm point

L alarm setting value

Depends on H/L alarm assign.

0

H/L alarm hys

H/L alarm hysteresis

Depends on H/L alarm assign.

0

[Parameter settings for the higher / lower alarm]

■ Setting method

Set Output function and Output logic in accordance with the explanations in 

. Status output function

.

Set H/L alarm assign (assigning of H/L alarm).

Mass Flow 

Mass instantaneous flowrate

Vol Flow     

Volume instantaneous flowrate

Dens         

Density

Temp          

Temperature

Counter

  

Counter 

Select H/L alarm type (alarm type).

Set 

High Alarm

 if to only activate  the higher limit alarm.

Set 

Low Alarm

 if to only activate  the lower limit alarm.

Set 

H/L Alarm

 if to activate both the higher and the lower limit alarm.

Set High alarm point (higher limit alarm value).

High alarm will activate when value exceeds this limit. Set value that will activate the High alarm.
In case "Low Alarm" is set in (), this setting is not required.

Set Low alarm point (lower limit alarm value).

        In case 

High Alarm

 is set in (), this setting is not required.

Set H/L alarm hys (higher / lower limit alarm hysteresis).

This is a setting of dead zone after the alarm occurs.
Set a large value when the measurement values have a significant fluctuation, while set a small 
value when early recovery from alarm status is required.

■Example of settings and operations

Parameter

Standard value

Output function

H/L Alarm

Output Logic

Negative

H/L alarm assign

Mass Flow

H/L alarm type

H/L Alarm

High alarm point

00

kg/min

Low alarm point

00

kg/min

H/L alarm hys

00

kg/min

Summary of Contents for ALTI mass CA004

Page 1: ...eries Every OVAL product is fabricated tested and inspected under stringent quality control before it leaves our factory To derive maximum benefit from the product we recommend you to be well familiar...

Page 2: ...0 In uences of Vibration and Pulsations Prevention of Cavitation Prevention of Excessive Flow Keeping the Sensor Filled with Process Liquid Bypass Loop Installation Guidelines Sensor Unit to Tubing Co...

Page 3: ...ENANCE 40 Error Messages 0 Status Messages Maintenance Inspection Replacement Parts 10 EXPLOSIONPROOF SPECIFICATIONS 43 0 TIIS 0 System Con guration 0 Inductance and Internal Resistance of Sensor Coil...

Page 4: ...nt unexpected problems transport the product to the installation site using the original manufacturer s packing for shipment if circumstances permit Do not apply strong impact during transportation an...

Page 5: ...will not exceed 0 3G 1 6 Precautions for power on To ensure the stable measuring condition allow 0 minutes of warm up period 1 7 Returning Equipment If the meter must be returned to OVAL for any reas...

Page 6: ...is especially suitable for the ow measurement of high pressure hydrogen 7 The meter casing has high mechanical rigidity for ease of use reducing space requirements and increasing process safety Explos...

Page 7: ...n leakage of inert argon gas For such case refill the casing with inert gas such as argon gas For further details of treatment consult OVAL sales office or nearest representative 2 Density and volumet...

Page 8: ...Operation LED for operation status display red and green zero adjustment button Communication type HART communication standard type Superimposed to the HART 7 Analog Output Modbus communication type...

Page 9: ...int Model SS 810 1 4RT Male thread 1 4B External diameter of tube 1 2B 43 4 View A A View A A 8 14 5 4 M10 Meter fitting bolt embedded 4 M10 Meter fitting bolt embedded 2 Rc1 4 Inert Gas Filler Openin...

Page 10: ...the valve at least ve meters away from your meter 5 2 Physical Orientation Physical orientation does not affect the performance of this unit It can be installed either in a horizontal or vertical run...

Page 11: ...ach meter with sturdy supports 5 3 3 Prevention of Cavitation Cavitation can cause a loss of meter accuracy in measurement Maintain line pressures that will not cause cavitation upstream and downstrea...

Page 12: ...to Piping Connection Guidelines 5 5 1 Machining the Female Connector for reference Fig is a machining drawing for preparing the high pressure cone thread connection female connector See also Fig Detai...

Page 13: ...Insert the male connector into the female connector and nger tighten the gland nut Ensure that the male connector and female connector are aligned in their axis at this time Tighten the gland nut to...

Page 14: ...ounting base are secured with four M 0 bolts designed to prevent them from loosening when shipped from the factory On the rare occasion you nd loose bolts retighten them Secure the mounting base to a...

Page 15: ...tain the tracing temperature around that of the process uid see General Speci cations If steam warm water or oil is used secure by spot welding the copper tubing or of other material to the sensor uni...

Page 16: ...mensions Fig 3 1 Converter external dimensions diagram Min 50 2 7 1 unit Rack Rack 144 160 0 5 48 44 178 160 145 2 4 5 135 165 121 2 3 8 Unit mm Installation pitch between 2 rackmount transmitters sha...

Page 17: ...wise and hand rotate it further until it comes off Removing the cover provides access to the terminal block Reverse step of shall be taken for re tightening the cover CAUTION Internal wiring could bre...

Page 18: ...e length secured at the position shown below so that the internal device can be pulled out from the case while connected 2 1 3 M3 screw Cover Tab Slide the cover upward Lift to remove the forward Sens...

Page 19: ...nal diagram Fig 3 4 IS CONNECTION SHIELD L G R R D L TA Tb TB Sensor connection terminal I O signal connection terminal Power supply connection terminal Grounding terminal ANALOG1 ANALOG2 STATUS I 0 A...

Page 20: ...ange of and 0 Fig 6 5 E 454 1 E Transmitter sensor connection terminal Terminal Color Description D Brown Flow tube drive output D Red G Black Connect cable shield TB Orange Temperature sensor input T...

Page 21: ...Green Blue Purple Gray White 1 Remove approximately 100mm of sheath of cable 2 Protect red brown shielded wire with black tube 3 Cut all shielded wires except for the red brown shielded wire 4 Protect...

Page 22: ...of terminal Polarity Description ANALOG Analog to 0mA output maximum load resistance 00 HART communication ANALOG Analog to 0mA output maximum load resistance 00 PULSE Open drain pulse equivalent to...

Page 23: ...kHz Max 00m Frequency 00Hz Max km The open drain pulse output and the voltage pulse output can be switched by the switch as shown in the figure below The voltage pulse is the drain terminal of open d...

Page 24: ...e grounding and between the output terminal and the grounding When conducting insulation resistance test withstand voltage test on these lines please follow the conditions as described below Also insu...

Page 25: ...ide the structure of terminal block can be either A or B shown below Follow procedure according to the type of your terminal block Fig 6 8 Terminal block A Terminal block B Remove the isolation cover...

Page 26: ...terminal box without exerting excessive force onto sensor cables After rotating reassemble terminal box in reverse procedure Fig 6 15 Terminal block A Terminal block B Remove screws from terminal bloc...

Page 27: ...lose the downstream valve to completely stop the measurement fluid and carry out Zeroing When zeroing is under progress the sensor unit shall be fully filled with the measurement fluid with 0 of opera...

Page 28: ...fasten the internal device M3 Screw to fasten the internal device M3 Screw to fasten the front cover M3 Front cover Zeroing button This is the button to conduct zeroing To press the button use a tool...

Page 29: ...utput Simulated output of pulse output Status output Simulated output of status output Status input Check input status condition Zeroing function Auto Zero Perform zeroing Analog adjustment function A...

Page 30: ...dentification 0 to 0 g ml 0g ml Slug duration Duration of gas multi phase flow identification 0 to 0 70 sec 0 sec Compensation Setting for execution of standard temperature conversion ON OFF OFF Stand...

Page 31: ...value 0 to 0000 Hz 000 Hz Rate Factor Full scale flowrate of pulse output According to the specification Lowcut Low cut of pulse output Setting will be done by certain percentage value to the Rate Fac...

Page 32: ...mA Zero mA Hold Keep the output Upscale mA Zero 8 7 Status Input Function This equipment can assign the status input or the status output function to the STATUS I O terminal Switching between status i...

Page 33: ...tput Analog Status output Analog Status IO Assign Assigning of status input output function Status input Status output Status input Output function Selecting of status output Error Status Bi Direction...

Page 34: ...e an error selected by Status output error select has occurred Status is switched ON Multiple items can be set Items to be selected by Status output error select When Bi Direction is selected Forward...

Page 35: ...type Set High Alarm if to only activate the higher limit alarm Set Low Alarm if to only activate the lower limit alarm Set H L Alarm if to activate both the higher and the lower limit alarm Set High a...

Page 36: ...flow Upon detection of density smaller than this setting the circuitry interprets and judge as slug flow Set a value small enough against the expected density value of the measurement fluid Slug high...

Page 37: ...e flowrate pulse output will be the frequency which is set by Pulse upscale freq Example of settings and operations Slug low limit lower limit density value of gas multi phase flow 0 g mL Slug high li...

Page 38: ...and analog output if needed As the analog flowrate output is the absolute value of flowrate it is not necessary to set the negative value of flowrate for the lower limit value of analog output LRV LRV...

Page 39: ...M lb day M ShTon min M ShTon hr M 7 ShTon day Instant volume flowrate V ml sec V ml min V ml hr V liter sec V liter min V liter hr V 7 liter day V CuMtr sec V CuMtr min V 0 CuMtr hr V CuMtr day V gal...

Page 40: ...temperature sensor cannot be confirmed The connection of temperature sensor is defective Check the connection status of temperature sensor P O Connect Error The normal connection of pickoff coil cann...

Page 41: ...ecuted Fixed output Status Output Fixed Status Out Fix Status output fixed output is being executed Fixed output 0 Sig Lock 0 Sig Lock 0 Signal Lock is being executed from status input 4mA Stopped Cal...

Page 42: ...flowmeter please conduct maintenance inspection for the following items Please confirm that the power of flowmeter has been turned off and that there is no hazardous atmosphere in the surrounding are...

Page 43: ...ss owmeter sensor Intrinsically safe circuit Non hazardous area Hazardous area General equipment Non intrinsically safe circuit Allowable voltage Um AC250V 50 60Hz DC250V Power supply AC100 to 240V 50...

Page 44: ...of temp class Major parts material Explosion proof Process connection Main code Additional code Category of High Pressure Gas H P 0 Other than High Pressure Gas H P 1 7R LF JDV DQG DPPDEOH JDV H P 2 T...

Page 45: ...nly available in Japanese C B J Only available in Japanese C C J Only available in Japanese C D J Only available in Japanese Witness Test V 1 0 Required Toxic gas and flammable gas 9 GEJ516E 1 ALTImas...

Page 46: ...r zero value Sensor zero adjusting value Flow Mass flow unit Instantaneous mass flow unit Vol flow unit Instantaneous volume flow unit Flow direction Flow direction selection Flow damp Mass Flow Mass...

Page 47: ...e Error select Sensor failure Output selection at each item Transmitter failure Calibration failure Saturated alarm Parameter failure Transmitter alarm Slug flow alarm Calibration in progress Fixed ou...

Page 48: ...ng consult OVAL sales of ce or nearest representative Equipment to be returned Sensor Unit Transmitter Model Serial No Process Fluid Names List all chemicals and process uids in contact with the equip...

Page 49: ...data YES No Initial serial No YES No Output mA Output frequency Pressure input Pressure output Sensor conditions Tube empty no obstacles Sensor empty no obstacles Tube clogged contaminated Type of cl...

Page 50: ...AL Corporation Head Office 10 8 Kamiochiai 3 chome Shinjuku ku Tokyo Japan Phone 81 3 3360 5121 FAX 81 3 3365 8605 2019 04 Released L 770HP 1 E 1 All speci cations are subject to change without notice...

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