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Alnor HM680 Скачать руководство пользователя страница 30

24

HM680 Hydronic Manometer

Pump Law Brake Power

This Calculations Menu option allows for determination of required pump brake power. The calculation is
based upon the following affinity law: Pump brake power varies as the cube of flow.

Figure 13: Pump Law Brake Power Screen

Inputs

The following inputs are necessary for calculating the required pump brake power. Use the

▲

and

▼

keys to select the parameter to be updated, and the

◄

and

►

keys to change the value of the

highlighted field. Units for the inputs are driven by what was last set in the Pressure and Flow
Measurement screens (with the exception of brake power).

Flow1

The actual system flow rate.

BP1

The actual pump brake power.

Flow2

The desired system flow rate.

Output

The calculated required pump brake power (

BP2

) to achieve the desired flow will automatically

update as the input parameters are changed. Using the

▲

and

▼

keys to scroll, and the

◄

and

►

keys to change the selected field, the unit of measure for pump brake power may be adjusted.
Available units for pump brake power are: bhp, W and kW.

Actual Flow

Actual Pump

Brake Power

Desired Flow

Battery Status or

Power Input Type

Required Pump

Brake Power

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Содержание HM680

Страница 1: ...HM680 Hydronic Manometer OWNER S MANUAL...

Страница 2: ...her than Seller The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated herein NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILI...

Страница 3: ...Bleeding the Entrained Air 8 Attaching the Hoses to the Test Points 9 Making Pressure Measurements 9 Accessing the Pressure Measurement Screen 9 Pressure Measurement Screen 9 Continuous Measurements 1...

Страница 4: ...Law Impeller Diameter 22 Pump Law Delta P 23 Pump Law Brake Power 24 Chapter 7 Maintenance and Troubleshooting 25 Routine Maintenance 25 Draining the Hoses 25 Draining the Manometer Valve 25 Cleaning...

Страница 5: ...tc set flush left against the margin References to keys on the manometer and the instrument s displayed readout are represented by a typeface called Arial In addition to the different typeface display...

Страница 6: ......

Страница 7: ...quipment including gloves and eyewear when working on high pressure or high temperature systems Ruptured or leaking lines pose a potential risk of serious personal injury When using the HM680 Hydronic...

Страница 8: ......

Страница 9: ...asy to read dot matrix LCD with backlight Power supplied via AC adapter or batteries alkaline or rechargeable NiMH Internal NiMH battery charging Automatic power shutoff Splash proof case Rugged carry...

Страница 10: ...t off valve 632650034 P T gauge adapter probes 2 632360004 B G readout probes 2 632360010 AC adapter 2182003 AA size NiMH battery four required 1208048 Battery holder 1801206 Neck strap 2913011 Owner...

Страница 11: ...ng the READ key initiates taking a time averaged reading based on the current time constant setting After taking the reading the values are stored to memory current Test ID and displayed on screen for...

Страница 12: ...n switch set to NiMH the manometer will initiate charging the batteries whenever the AC adapter is connected Installing the Batteries To install replace the batteries 1 Turn the manometer off and loca...

Страница 13: ...nstrument Start up Upon turning the HM680 Hydronic Manometer on the meter will engage in a brief self check while displaying the serial number model number and revision of the instrument being used In...

Страница 14: ...ed from the hoses The zero offset of the differential pressure sensor is sensitive to temperature changes If moving the manometer between areas with extreme temperature difference it is best to allow...

Страница 15: ...layed High side gauge pressure High P will be less than the Low side gauge pressure Low P and the Differential pressure dP and resulting calculated flow Flow will be negative Making Pressure Measureme...

Страница 16: ...constant setting The display is updated once per second Making Flow Measurements The HM680 Hydronic Manometer allows for continuous calculation and display of flow While in the Flow Measurement screen...

Страница 17: ...surement screens Connecting the Temperature Probe Connect the keyed 3 pin plug of the accessory temperature probe to the mating connector located on the right hand side of the manometer Notes A lockin...

Страница 18: ...pressure red hose from the higher line pressure test point 3 Disconnect the Low pressure blue hose from the lower line pressure test point Note If additional measurements at another location system co...

Страница 19: ...ion allows for setting the fluid type Water or Other of the system being measured Defining the fluid type is necessary in order for the manometer to account for the fluid s specific gravity when calcu...

Страница 20: ...1 200 The default is 1 000 Temperature Offset An offset value for temperature probe measurements is selectable between 5 4 F 3 0 C Set Date and Time This Main Menu option allows for adjustment and se...

Страница 21: ...ll serve to improve measurement stability particularly when measuring systems with fluctuating pressures Auto Off This setting adjusts whether or not the instruments automatic shut off feature is enab...

Страница 22: ......

Страница 23: ...stored in that TEST ID MAX The highest value stored in that TEST ID SUM The sum of all values stored in that TEST ID Note SUM is only presented for flow readings View Log Data This Data Logging Menu o...

Страница 24: ...unattended data logging Note The instrument can store a maximum of 1000 different samples These samples can be distributed over one or all of the available Test IDs Delete Data This Data Logging Menu...

Страница 25: ...u option allows for determination of pump brake power Figure 8 Brake Power Screen Inputs The following inputs are necessary for calculating brake power Use the and keys to select the parameter to be u...

Страница 26: ...e units for brake power are bhp W and kW Heat Flow This Calculations Menu option allows for determination of heat flow Figure 9 Heat Flow Screen Inputs The following inputs are necessary for calculati...

Страница 27: ...stem fluid Notes The unit of measure for specific heat is driven by that selected for heat flow as follows Heat flow in Btu hr specific heat in Btu lb F Heat flow in W or kW specific heat in kJ kg C T...

Страница 28: ...ations Menu option allows for determination of required pump impeller size The calculation is based upon the following affinity law Flow varies directly as the change in impeller diameter Figure 11 Pu...

Страница 29: ...12 Pump Law Delta P Screen Inputs The following inputs are necessary for calculating the required pump pressure drop Use the and keys to select the parameter to be updated and the and keys to change...

Страница 30: ...ld Units for the inputs are driven by what was last set in the Pressure and Flow Measurement screens with the exception of brake power Flow1 The actual system flow rate BP1 The actual pump brake power...

Страница 31: ...both the High and Low pressure hoses to the open position 4 Using a suitable high pressure air source blow the entrained liquid from both hoses Draining the Manometer Valve Fluid within the manometer...

Страница 32: ...ent housing keypad or display Battery Charging The HM680 Hydronic Manometer allows for internal charging of AA size type NiMH only batteries Charging of the batteries is initiated as follows 1 Turn th...

Страница 33: ...the service page on our website at www alnor com to complete an RMA form online Ship directly to TSI Incorporated ATTN Customer Service 500 Cardigan Road Shoreview MN 55126 3996 Troubleshooting The fo...

Страница 34: ...em detected with the counter chip LCD CODE Problem detected in writing to the display ADC7718 CODE Problem detected in reading the pressure voltage ADC3300 CODE Problem detected in reading a non press...

Страница 35: ...he on screen instruction to properly install the program Notes You must have administrative rights on the computer in order to successfully install the included USB downloading software You will need...

Страница 36: ...n 3 Click Finish Figure 17 Completing the Found New Hardware Wizard Software Interface With the HM680 meter connected to the computer the CompuDat USB program will launch automatically All downloadabl...

Страница 37: ...files of stored data for Test ID 1 through Test ID 10 TestIDs folders can be downloaded in their entirety or opened for access to individual Test ID files Downloading Data Downloading stored data is...

Страница 38: ......

Страница 39: ...orage 100 Test IDs 1000 combined readings time and date stamped Logging Interval user selectable 5 to 3600 seconds Averaging Interval user selectable 1 to 30 seconds Display dot matrix LCD with backli...

Страница 40: ...ardigan Road Shoreview MN 55126 USA Toll Free 800 861 7897 Telephone 651 490 2707 February 2005 Fax 651 490 3824 Printed in USA www alnor com Part No 1980518 Rev A customerservice alnor com Copyright...

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