USER'S GUIDE Vaisala HUMICAP® Hand-Held Moisture and Temperature in Oil Meter MM70 M210498EN-C
PUBLISHED BY Vaisala Oyj P.O. Box 26 FIN-00421 Helsinki Finland Phone (int.): +358 9 8949 1 Fax: +358 9 8949 2227 Visit our Internet pages at http://www.vaisala.com/ © Vaisala 2007 No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder. The contents are subject to change without prior notice.
________________________________________________________________________________ Table of Contents CHAPTER 1 GENERAL INFORMATION............................................................................ 5 About This Manual ................................................................... 5 Product Related Safety Precautions ...................................... 5 ESD Protection ......................................................................... 5 Recycling ......................................
USER'S GUIDE____________________________________________________________________ Rounding .............................................................................24 Hold/Save Display ...............................................................25 Graphic History....................................................................25 User Interface Settings........................................................26 Selecting Language.............................................................
________________________________________________________________________________ Preparations before the Calibration .................................... 51 Relative Humidity Adjustment ............................................. 51 Li-Cl-NaCl Automatic Adjustment ....................................... 51 2-point Adjustment .............................................................. 52 1-point Adjustment .............................................................. 53 Temperature Adjustment.........
USER'S GUIDE____________________________________________________________________ Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Measurement Setting Menus....................................................32 Alarm Function Menus..............................................................32 Analog Output Menus...............................................................34 Record and View Menu ............................................................
Chapter 1 __________________________________________________ GENERAL INFORMATION CHAPTER 1 GENERAL INFORMATION About This Manual This manual provides information for installing, operating, and maintaining the product. Product Related Safety Precautions The MM70 delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions: WARNING Ground the product, and verify outdoor installation grounding periodically to minimize shock hazard.
USER'S GUIDE____________________________________________________________________ To make sure you are not delivering high static voltages yourself: - Handle ESD sensitive components on a properly grounded and protected ESD workbench. When this is not possible, ground yourself with a wrist strap and a resistive connection cord to the equipment chassis before touching the boards.
Chapter 1 __________________________________________________ GENERAL INFORMATION Warranty Vaisala hereby represents and warrants all Products manufactured by Vaisala and sold hereunder to be free from defects in workmanship or material during a period of twelve (12) months from the date of delivery save for products for which a special warranty is given.
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Chapter 2 _____________________________________ PRODUCT OVERVIEW AND MECHANICS CHAPTER 2 PRODUCT OVERVIEW AND MECHANICS Vaisala´s Hand-held MM70 Device MM70 consists of two main units: MI70 indicator and MMP78 probe. MM70 Hand-held humidity meter incorporates Vaisala's advanced HUMICAP® technology which enables reliable and high performance moisture in oil measurement. Vaisala MM70 is delivered with a factory calibration certificate.
USER'S GUIDE____________________________________________________________________ Structure of the MI70 Indicator 0605-094 Figure 1 MI Indicator The following numbers refer to Figure 1 on page 10.
Chapter 2 _____________________________________ PRODUCT OVERVIEW AND MECHANICS Structure of the MMP78 Probe 0605-087 Figure 2 MMP78 Probe The following numbers refer to Figure 2 on page 11. 1 = Probe MMP78. Rugged probe with a long stainless steel shaft.
USER'S GUIDE____________________________________________________________________ Display Parameters - aw: water activity - T: temperature (°C/F) - H2O: mass concentration of water (ppm)(available only if selected when ordering) Options - carrying case for the indicator and the probe - connection cables for the fixed transmitters: HMP228, MMT318, and MMT330. - MI70 Link software kit. The software can be used for transferring recorded data to a PC. using a serial line or a USB instrument cable.
Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS CHAPTER 3 INSTALLATION AND MOUNTING OPTIONS Installing and Recharging the Batteries 1. If you are using alkaline batteries, unscrew the back plate of the indicator and insert the alkalines. If MM70 is ordered with rechargeable battery, it is already in place as shipped from the factory. 2. Recharge the battery as follows: Plug in charger connector to the indicator.
USER'S GUIDE____________________________________________________________________ 2. Press the power on/off key. 3. Select the language by using the arrow up/down keys. Confirm by pressing the SELECT key. You can select the language later on, as well. For more information, see Selecting Language on page 27. 4. To change the date, select Date and press the SET key. Change the date by using any of the arrow keys: up/down/left/right. To confirm the date, press the OK key.
Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS measurements in pipelines. The maximum installation pressure is 10 bar and the maximum operation pressure is 20 bar. 0605-086 Figure 4 MMP78 Pipe Dimensions (in mm); 400 mm (adjustment range 340 mm) The following numbers refer to Figure 4 on page 15. 1 = Clasp nut, 27 mm hex nut) 2 = Fitting body, 24 mm hex head Tightening the Clasp Nut 1.
USER'S GUIDE____________________________________________________________________ 0605-080 Figure 5 Tightening Clasp Nut The following numbers refer to Figure 5 on page 16 above NOTE 1 = Probe 2 = Clasp nut 3 = Fitting screw 4 = Pen Take care not to over tighten the clasp nut to avoid difficulties when opening it. When the probe is used in a pressurized processes the sensor head should preferebly be installed through a ball valve assembly.
Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS 0605-083 Figure 6 Sealing Thread Cutting for the Fitting Body CAUTION In pressurized processed it is essential to tighten the supporting nuts and screws very carefully to prevent loosening of the probe by the action of pressure CAUTION Take care not to damage the probe body. A damaged body makes the probe head less tight and may prevent it from going through the clasp nut.
USER'S GUIDE____________________________________________________________________ 3. Make sure that the temperature at the measurement point is equal to that of the process, otherwise the moisture reading may be incorrect. 0605-085 Figure 7 Ball Valve Installation The following numbes refer to Figure 7 on page 18 above. 1 = Probe 2 = Clasp nut. The probe slides easily in place when you first fix the clasp nut manually.
Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS NOTE The probe can be installed in the process through the ball valve assembly provided that the process pressure is less than 10 bars. This way, the process does not have to be shut down for installing or removing the probe. However, if the process is shut down before removing the probe, the process pressure can be max. 20 bars. Mounting the Probe for Direct Measurement (No Pressure) 1.
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Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS CHAPTER 4 MENU OPERATIONS AND SETTINGS Function Keys and Menu Structure Navigating in Menu 0605-106 Figure 9 Keypad The following numbers refer to Figure 9 on page 21 above: 1 = To open the main menu, first press any of the arrow keys (3), then press the middlemost function key (1).
USER'S GUIDE____________________________________________________________________ - To turn the indicator on or off, press the power On/Off key. - To open the main menu, press any of the arrow keys and then the middlemost function key in sequence. - To move in a menu and select an option, press the up/down arrow keys. To enter sub-menu of selected option, press the right arrow key. To return to the previous menu level, press the left arrow key.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS Function keys are shortcuts to some functions or menus. Shortcuts for Graphic, Hold/Save and Record are preset at the factory. You can change these shortcuts by assigning the function keys to other functions or menus, as well. For more information on changing shortcuts, see Changing the Shorcut Keys on page28. Graphical Display Graphical display shows you the measurements in a form of curve.
USER'S GUIDE____________________________________________________________________ Settings Display Settings 0605-102 Figure 11 Display Setting Menus Quantities and Units 1. Open the MENU: First press an arrow key, and then press the OPEN key. 2. Select Display. Press the right arrow key. 3. Select Quantities and Units. Press the right arrow key. 4. Select the desired quantity with the up/down arrow keys and press the SELECT key. 5.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Display. Press the right arrow key. 3. Select Rounding. Press the right arrow key. 4. To set rounding on (one decimal display), press the ON key. To set rounding off (two decimal display), press the OFF key. 5. To return to the basic display, press the EXIT key.
USER'S GUIDE____________________________________________________________________ 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Display. Press the right arrow key. 3. Select Graphic History. To enter a graphical history display, press the SHOW key. 4. To get the statistical info on the graph area (minimum, maximum and mean values), press the INFO key. 5. To get the curve of the other selected quantities, press the NEXT key.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS Selecting Language You can select any of the following languages for user interface language: English, German, French, Finnish, Spanish, Swedish, Chinese, Japanese or Russian. 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Settings. Press the right arrow key. 3. Select User Interface. Press the right arrow key. 4. Select Language. Press the SET key. 5.
USER'S GUIDE____________________________________________________________________ Changing the Shorcut Keys As a default, the function keys are shortcuts to Graphic, Hold/Save and Record menus. The shortcuts can be changed to other locations to correspond your needs. 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Settings. Press the right arrow key. 3. Select User Interface, press the right arrow key. 4. Select Program Shortcut Keys, press the START key. 5.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS 3. Select Date and Time. Press the right arrow key. 4. To change the date, select Date and press the SET key. Change the date by using arrow keys. To confirm the date, press the OK key. The default date presentation format is year-month-date, e.g. 2002-06-05. If you want to change the format, select Date format: Y-M-D, press the SET key, select either D.M.Y or M/D/Y, press the SELECT key. 5.
USER'S GUIDE____________________________________________________________________ 0605-099 Figure 14 Device Information Submenus Restoring Factory Settings Factory settings can be reverted to clear all changed settings and data memory of the indicator. Reverting factory settings does not effect on probe calibration. 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Settings. Press the right arrow key. 3. Select Factory Settings, press the REVERT key. 4.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS If additional accuracy is needed, more information is found below in the section Calculation Model with Oil Specific Coefficients on page 31. Calculation Model with Oil Specific Coefficients For additional accuracy, oil specific calculation model can be used both for mineral and silicon based oils. An oil sample has to be sent to Vaisala for modelling.
USER'S GUIDE____________________________________________________________________ 7. Select the B value (B:0.0000) and press the SET key. 8. Set the value B by using the arrow keys up/down/left/right, press the OK key. 9. You may key in coefficients for 4 different oils. Identify the oil by numbering them (1...4). Select the first row (H2Ooil) and set the identification number. Then feed the coefficients as shown above. 10. Press the EXIT key to return to the basic display. 11.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS MM70 alarms by beeping and blinking the backlight. The alarm turns on when the measured value is not between the alarm limits (permitted area). Alarm level(s) can be set for only one quantity at a time. Set the alarm levels as follows: NOTE 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Functions. Press the right arrow key. 3. Select Alarm, press the right arrow key. 4.
USER'S GUIDE____________________________________________________________________ Selecting and Scaling the Analog Output 0605-093 Figure 17 Analog Output Menus To get analog measurement data, you need the analog output signal cable, see section Options and Accessories Available on page 66. One voltage signal channel 0...1.0V can be scaled for the selected quantity. 1. Connect the analog output signal cable connector to the indicator base connector.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS 7. Select 0.0 V to set the value for the 0.0 V output signal, press the SET key (if the analog output is ON, turn it OFF). Set the low value by using the arrow keys. Press the+/- key to choose the sign of the value. Press the OK key to save the setting. 8. Select 1.0 V to set the value for the 1.0 V output signal, press the SET key. Set the high value by using the arrow keys.
USER'S GUIDE____________________________________________________________________ 2. Connect the DMP70/GMP70/HMP70 probe to the other connector port in the bottom of the indicator. 3. Turn on the device. 4. Check that the pressure settings of the probes (port I and II) are the same, if you are taking measurements from the same condition. 5. The display shows now the reading of the port I probe in the upper row(s) and the reading of the port II in the lower row(s).
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS CAUTION 8. Start recording: Select Start/Stop recording, press the START key. If you choose Memory full option, you will see the maximum recording time on the display. You can also delete files in order to empty the memory. Press the START key again to accept maximum recording time. 9. You can switch the MM70 off during recording to save battery.
USER'S GUIDE____________________________________________________________________ Viewing Recorded Data 1. Open the MENU. First press the right arrow key, and then press the OPEN key. 2. Select Recording/Viewing. Press the right arrow key. 3. Select View recorded data. Press the right arrow key. 4. Select the file that you want to view, press the right arrow key. The files are identified according to the starting date and time of recording. 5.
Chapter 4 _________________________________________ MENU OPERATIONS AND SETTINGS Transferring Recorded Data to PC The recorded data can be transferred to a PC using the MI70 Link program. The MI70 Link program can be ordered from Vaisala, see section Options and Accessories Available on page 66. You can examine the recorded data easily in the Microsoft Windows® environment and transfer it further on a spreadsheet program, such as, Microsoft Excel® for modifications.
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Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT CHAPTER 5 CALIBRATION AND ADJUSTMENT General Notes about Calibration and Adjustment of Transmitters Using MM70 in Checking and Adjusting Vaisala´s HMP228, MMT318 and MMT330 series transmitters can be calibrated and adjusted by using MM70. - In the field: Check and adjust a fixed transmitter´s reading against MM70´s calibrated reference probe.
USER'S GUIDE____________________________________________________________________ Calibration and Adjustment of HMP228 Series Transmitters You can check all the parameters aw, T and RH, but only RH can be adjusted. You can calibrate your transmitter against a calibrated reference probe of MM70 or against a calibrator's reference humidity by using MI70 indicator in communication. Follow the first 12 steps and continue according to the chosen calibration method. 1.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 0605-091 Figure 19 Adjustment Mode Relative Humidity Adjustment by Using a Calibrated Reference Probe When using this adjustment method, start with the steps 1 through 12 on the previous page. Then proceed as follows: 1. Ensure that the probes are located in the same conditions. 2. Wait until the readings have stabilized.
USER'S GUIDE____________________________________________________________________ 4. Wait until the reading is stabilized (takes about 30 minutes). You can follow the stabilization from the graph display, by pressing the GRAPH key. 5. Press the READY key when the value is stabilized in the reference humidity. 6. Enter the correct humidity value by using the arrow keys. Press the OK key. 7. Confirm by pressing the YES key. 8.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 10. Enter the second reference humidity value by using the arrow keys. Press the OK key. 11. Confirm by pressing the YES key. 12. To return to the basic display, first press the BACK key, then the EXIT key twice.
USER'S GUIDE____________________________________________________________________ 1. Select aw, RH, T or H2O (H2O can only be checked, not adjusted). Press the SELECT key. 2. Check that the probes are located in equal conditions and wait until the readings are stabilized (can take 30 minutes or more). If you are near the probes, do not breathe towards them. 3. To continue adjusting, press the ADJUST key. 4. Select To same as... Press the SELECT key.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 8. Adjustment is done. To return to the basic display, first press the BACK key, then the EXIT key. 9. Detach the calibration cable. 2-point Adjustment by Using a Calibrator If you use humidity calibrator HMK15, use the adapter fitting (13.5 mm) on the measurement hole. When using this adjustment method, start with the steps 1 through 4 in the section Calibration and Adjustment of MMT318 Transmitters on page 45.
USER'S GUIDE____________________________________________________________________ Calibration and Adjustment of MMT330 Transmitters You can check and adjust MMT330 transmitter reading against a calibrated reference probe of MMP78 or against another reference condition by using MI70 indicator in communication. Follow the first 4 steps and continue according to the chosen calibration method. 1.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 2. Check that the probes are located in equal conditions and wait until the readings are stabilized (can take 30 minutes or more). If you are near the probes, do not breathe towards them. 3. To continue adjusting, press the ADJUST key. 4. Select To same as... Press the SELECT key. (MI70 always recognizes the port to which the MMP70-series probe is connected.) 5. Confirm by pressing the YES key. 6. Adjustment is done.
USER'S GUIDE____________________________________________________________________ 2-point Adjustment by Using a Calibrator When using this adjustment method, start with the steps 1 through 4 in the section Calibration and Adjustment of MMT330 Transmitters on page 48. Then proceed as follows: 1. Select the quantity and press the SELECT key. 2. Remove the filter from the transmitter´s probe and insert the probe head into the reference condition. 3. To continue adjusting, press the ADJUST key. 4.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT Calibration and Adjustment of MM70 Series Probes General about Calibrations The MM70 is fully calibrated as shipped from factory. Adjustment should be done if there is a reason to believe that device is not within the accuracy specifications. The recommended calibration interval is one year.
USER'S GUIDE____________________________________________________________________ have to feed the reference values, the MM70 displays the accurate value based on the measured temperature and the Greenspan table stored into the memory of the MM70. Make the adjustment as instructed in the section below (select LiCl-NaCl autom. on item 8 and follow the display instructions). 2-point Adjustment Low humidity references 0 % (Nitrogen)/ 11.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 14. Confirm the adjustment, press the YES key (by pressing the NO key you return to adjustment mode display and no changes are made). If the difference between two references is less than 50 %, adjustment can not be done. 15. Adjustment is done. To return to the basic display, first press the BACK key, then press the EXIT key. 16. Replace the screw onto calibration key.
USER'S GUIDE____________________________________________________________________ 1-point Adjustment When using this adjustment method, start with the steps 1 through 4 in the previous section Temperature Adjustment on page 53. Then proceed as follows. 1. Select 1-point adjustment, press the SELECT key. 2. Set the probe to a reference temperature. You can follow the stabilization from the graph display. Press the READY key when the reading is stabilized in the reference. 3.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT 8. Calibration is done. To return to the basic display, first press the BACK key and then press the EXIT key. Last Adjustment Date To see the last adjustment date, select Last adjustment date. You can check this date also from the Device information. For more information, see section Device Information on page 29.
USER'S GUIDE____________________________________________________________________ NOTE If the oil sample is very dry and the temperatures are close to each other, it may cause inaccuracy to the calculation model. In order to get the best possible performance it is recommended to use oil conditions that represent real conditions in application. Recommended values for sample are aw approx. 0.5 at 20 °C. 3. A= Define the correlation between aw, T and PPM (w/w) from the measured values.
Chapter 5 ___________________________________________ CALIBRATION AND ADJUSTMENT NOTE If the oil sample is very dry, and the temperatures are close to each other, it may cause inaccuracy to the calculation model. To get the best possible performance it is recommended to use oil conditions that represent real conditions in application. Recommendation for sample is e.g. aw approx. 0.5 at 20 °C.
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Chapter 6 ___________________________________________________________ MAINTENANCE CHAPTER 6 MAINTENANCE Changing the Filter and Sensor Plastic socket 1. Screw out the filter from the probe head, see Figure 2 on page 11. 2. Remove the damaged sensor by pulling it out. Handle the sensor by the plastic socket. 3. Insert a new sensor. 4. Make a humidity calibration. 5. Screw a new filter on the probe head, take care to tighten the filter properly (5.1 Nm).
USER'S GUIDE____________________________________________________________________ Changing the Battery A new rechargeable battery pack can be ordered from Vaisala. Change the battery pack as follows: 1. Open the back plate of the indicator by opening the screw of the back plate. 2. Remove the old battery pack. Detach the black connector by gently pulling it up from the wires. 3.
Chapter 6 ___________________________________________________________ MAINTENANCE Vaisala Service Centers VAISALA _______________________________________________________________________ 61
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Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS CHAPTER 7 TECHNICAL SPECIFICATIONS Measured Variables Water Activity aw Measurement range 0...1 (-40...+60 C/-40 ...+140 F) Accuracy 0.02(0...0.9) 0.03(0.9...1.0) Response time (90%) at +20 C in still 10 min oil (stainless steel filter) Humidity sensor HUMICAP Temperature Measurement range -40...+100 C (-40 ...+212 F) Typical accuracy at +20 C (+68 C) 0.1 C (0.
USER'S GUIDE____________________________________________________________________ MMP78 Probe Humidity sensor HUMICAP Temperature sensor Pt 100 1/3 Class B IEC 751 Operating temperature range for electronics -40...+60 C, -40...+140 F Operating pressure range 0...20 bar Standard sensor protection Stainless steel grid Housing classification IP65 (NEMA 4) Housing material ABS/PC blend Probe material Stainless steel (AIS316L) Probe cable length (between indicator 1.
Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS Accuracy Temperature dependence Minimum load resistor Data interface Data logging capacity Logging interval Logging duration Alarm Housing classification Weight Housing material 0.2 % full scale 0.002 %/ C full scale 10 kohm to ground RS232C (EIA-232) 900...2700 real time data points 1 s to 12 h 1 min...
USER'S GUIDE____________________________________________________________________ Options and Accessories Available Table 3 List of Options and Accessories Description AC-Adapters Euro AC-adapter UK AC-adapter US AC-adapter AUS AC-adapter Cables Analog output signal cable Connection cable for MMT318 Connection cable for HMP228 Connection cable for MMT330 Extension cable (10m) Carrying case Carrying case for two probes (MMP78, DMP74A/B) Probe Accessories Stainless steel filter Protective cap Others Measure
Chapter 7 ______________________________________________ TECHNICAL SPECIFICATIONS Dimensions in mm (inches) Figure 21 MI70 Indicator VAISALA _______________________________________________________________________ 67
190 (7.48) USER'S GUIDE____________________________________________________________________ 340 (13.39) Adjustm ent range 250m m 170 (6.69) 13.5 (0.53) 12 (0.
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