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WARRANTY / DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months
from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product
warranty
 to cover handling and shipping time. This ensures that OMEGA's customers receive maximum coverage on each product.

If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA's Customer Service Department will issue
an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found
to be defective it will be repaired or replaced at no charge. OMEGA's WARRANTY does not apply to defects resulting from any
action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper
repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows
evidence of being damaged as a result of excessive corrosion; or current, heat moisture or vibration; improper specification;
misapplication; misuse or other operating conditions outside of OMEGA's control. Components which wear are not warranted,
including but not limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility
for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance
with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it
will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND
WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.
LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with
respect to this order, whether based on  contract, warranty, negligence, indemnification, strict liability or otherwise, shall
not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a "Basic Component" under 10
CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any
Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way,
OMEGA assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language, and additionally, purchaser will
indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in
such a manner.

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY
PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA'S
CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then
be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for  shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR WARRANTY RETURNS, please have the following

information available BEFORE contacting OMEGA:

1. P.O. number under which the product was PURCHASED.
2. Model and serial number of the product under warranty, and
3. Repair instructions and/or specific problems relative to the

product.

FOR NON-WARRANTY REPAIRS, consult OMEGA for

current repair charges. Have the following information
available BEFORE contacting OMEGA:

1. P.O. number to cover the COST of the repair.
2. Model and serial number of product , and
3. Repair instructions and/or specific problems relative to the

product.

OMEGA's policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest
in technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC. © Copyright 1999 OMEGA ENGINEERING,
INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or
machine-readable from, in whole or in part, without prior written consent of OMEGA ENGINEERING, INC.

Summary of Contents for HHM31

Page 1: ...OMEGA HHM31 Digital Multimeter ...

Page 2: ...ll Free in Germany 0800 82 66342 e mail nl omega com e mail germany omega com Czech Republic United Kingdom ISO 9002 Certified ul Rude armady 1868 733 01 Karvina One Omega Drive Hranice Czech Repubic Riverbend Technology Centre Northbank Irlam Tel 420 69 6311627 FAX 420 69 6311114 Manchester M44 5EX England e mail czech omega com Tel 44 161 777 6611 FAX 44 161 777 6622 France 9 rue Denis Papin 781...

Page 3: ...ross a high voltage high energy power source when the meter is set up for mA measurement may be very hazardous 3 Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous 4 Use caution when working above 60V dc or 30V ac rms Such voltages pose a shock hazard 5 When Using the probes keep your fingers behind the finger guard...

Page 4: ...rating Environment 0 C to 40 C at 70 relative humidity Storage Temperature 20 C to 60 C 0 to 80 R H with battery removed from meter Accuracy Stated accuracy at 23 C 5 C 75 relative humidity Safety According to EN61010 1 protection class II overvoltage category CAT II 600V pollution degree 2 Power single standard 9 volt battery NEDA 1604 JIS 006P IEC 6F22 Battery life 200 hours typical Dimensions 1...

Page 5: ... 4dgts on 600V range Input impedance 10MW Overload protection 500VDC or AC rms on 200mV range 600VDC or AC rms on all other ranges DC CURRENT Ranges 200µA 20mA 200mA 10A Accuracy 0 5 rdg 1dgt on µA mA ranges 3 0 rdg 1dgt on 10A range Input protection 0 5A 250V fast blow ceramic fuse 10A 600V fast blow ceramic fuse AC CURRENT 50Hz 500Hz Ranges 200µA 20mA 200mA 10A Accuracy 1 2 rdg 4dgts on µA mA ra...

Page 6: ...ts 0 3Vdc 3 0Vdc on 200W range Overload protection 500VDC or AC rms CONTINUITY Audible indication less than 100W Overload protection 500VDC or AC rms DIODE TEST Test current 1 0mA 0 6mA Accuracy 3 0 rdg 3dgt Open circuit volts 3 0Vdc typical Overload protection 500VDC or AC rms CAPACITANCE Ranges 2nF 20nF 200nF 2µF 20µF Accuracy 2 0 rdg 10dgts Test frequency 2 5Hz ...

Page 7: ...s specified for operating temperatures over the range of 18 C to 28 C 64 F to 82 F for 1 year not including thermocouple error 0 3 rdg 1 C 50 C to 1000 C 0 5 rdg 1 C 1000 C to 1300 C 0 3 rdg 2 F 58 F to 2000 F Temperature Coefficient 0 1 times the applicable accuracy specification per C from 0 C to 18 C and 28 C to 50 C 32 F to 64 F and 82 F to 122 F Input Protection 24V dc or 24V ac rms maximum i...

Page 8: ...g In the MAX mode the MAX annunciator is displayed and maximun reading are stored in display register If the new reading is higher than the reading being displayed the higher reading is transferred to the display register A higher reading is defined as the reading with the higher absolute value The MAX hold function is disable in the frequency count mode but the MAX annunciator is still displayed ...

Page 9: ...ither degrees Celsius C or degrees Fahrenheit F To change the temperature scale press the C F key 3 Selecting the Display Resolution The meter allows two choices of resolution High resolution 0 1 C or 0 1 F Low resolution 1 0 C or 1 0 F To select the alternate display resolution press the corresponding 0 1 1 key 4 Connect a type k thermocouple to the jack on the instrument Place the probe or therm...

Page 10: ...ent Measurements 1 Set the Function Range switch to the desired current range and press the AC DC switch toggle between to the desired current type 2 For current measurements less than 200mA connect the red test lead to the µAmA jack and the black test lead to the COM jack 3 For current measurements over 200mA or greater connect the red test lead to the 10A jack and the black test lead to the COM ...

Page 11: ...e VW jack and the black test lead to the COM jack 4 Touch the probes to the test points In ohms the value indicated in the display is the measured value of resistance In continuity test the beeper sounds continuously if the resistance is less than 100W WARNING The accuracy of the functions might be slightly affected when exposed to a radiated electromagnetic field environment eg radio telephone or...

Page 12: ...s displayed 6 If the diode is open OL is displayed in both directions 7 If the junction is measured in a circuit and a low reading is obtained with both lead connections the junction may be shunted by a resistance of less than 1kW In this case the diode must be disconnected from the circuit for accurate testing Capacitance Measurements 1 Set the Function Range switch to the desired capacitance ran...

Page 13: ... 1 Set the Function Range switch to the Hz position 2 Connect the red test lead to the VW jack and the black test lead to the COM jack 3 Connect the test leads to the point of measurement and read the frequency from the display ...

Page 14: ...for a blown overload protec tion fuse There are two fuses F1 for the mA jack and F2 for the 10A jack For access to fuses remove the four screws from the back of the meter and lift off the battery cover and case Replace F1 only with the original type 0 5A 250V fast acting ceramic fuse Replace F2 only with the original type 10A 600V fast acting ceramic fuse Cleaning Periodically wipe the case with a...

Page 15: ...perature Calibration Insert the K type thermocouple to the female connector and the other side of this probe to Temperature Calibrator We must allow the K type to stabilize for at least 1 minute and make sure and polarity is right position 1 Set the range to the T1 0 1 C and then apply 0 C to T1 input T2 input open adjust R845 and R846 fine adj until LCD reading reads 0 0 0 1 C 2 Set the range to ...

Page 16: ...ity or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on...

Page 17: ...el Systems þ Totalizers Batch Controllers pH CONDUCTIVITY þ pH Electrodes Testers Accessories þ Benchtop Laboratory Meters þ Controllers Calibrators Simulators Pumps þ Industrial pH Conductivity Equipment DATA ACQUISITION þ Data Acquisition Engineering Software þ Communications Based Acquisition Systems þ Plug in Cards for Apple IBM Compatibles þ Datalogging Systems þ Recorders Printers Plotters H...

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