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Orbit Merret OM 402PWR Manual

4 digit programmable universal wattmeter
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G U A R A N T E E
Y E A R S
OM 402PWR
4 DIGIT PROGRAMMABLE
UNIVERSAL WATTMETER
AC VOLTMETER/AMMETER
NETS ANALYSER
WATTMETERS
TECHDOK - OM 402PWR - 2013 - 3v1 - en

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Summary of Contents for Orbit Merret OM 402PWR

  • Page 1 G U A R A N T E E Y E A R S OM 402PWR 4 DIGIT PROGRAMMABLE UNIVERSAL WATTMETER AC VOLTMETER/AMMETER NETS ANALYSER WATTMETERS TECHDOK - OM 402PWR - 2013 - 3v1 - en...
  • Page 2 Supply of energy from the main line has to be isolated from the measuring leads. ORBIT MERRET, spol. s r.o. Vodnanska 675/30 198 00 Prague 9 Czech Republic Tel: +420 - 281 040 200 Fax: +420 - 281 040 299 e-mail: orbit@merret.eu www.orbit.merret.eu 2 | INSTRUCTIONS FOR USE OM 402PWR...

  • Page 3: Table Of Contents

    6.2.4 Setting „Channel I“ - Frequency ... 51 6.2.5 Setting mathematic functions ... . 52 6.2.6 Selection of evaluation of min/max. value . . 57 INSTRUCTIONS FOR USE OM 402PWR | 3...

  • Page 4: Instrument Description

    2. INSTRUMENT DESCRIPTION DESCRIPTION The OM 402PWR model is a universal 4-digit panel wattmeter with independent measuring of AC voltage/current, frequency, power factor and other quantities. The instrument is based on an 8-bit microcontroller and precise RMS converter, which secures high accuracy, stability and easy...
  • Page 5 OML cable to connect the instrument to PC. It is manufactured in version RS 232 and USB and is compatible with all ORBIT MERRET instruments. Another option for connection is with the aid of data output RS 232 or RS 485 (without the need of the OML cable).

  • Page 6: Instrument Connection

    5-6 connect L- to (-) source terminalconnected do not disconnect RS 485 line should have a linear structure - wires (ideally shielded and twisted) should lead from one device to another. 6 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 7 OM Link and secondary inputs. It is necessary to abide by the precautions of hazardous contact with active parts of the instrument in compliance with relevant standards and regulations INSTRUCTIONS FOR USE OM 402PWR | 7...
  • Page 8 Connection for measuring on three phase Input 3 - U Input 2 - U 11 12 13 GND - U GND - I Input 1 - I LOAD 14 15 16 17 LOAD LOAD 8 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 9 INSTRUMENT CONECTION INSTRUCTIONS FOR USE OM 402PWR | 9...

  • Page 10: Instrument Setting

    Linear menu structure SETTING USER For user operation Menu items are set by the user (Profi/Light) as per request Access is not password protected Optional menu structure either tree (PROFI) or linear (LIGHT) 10 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 11 The operation program is freely accessible (www.orbit.merret.cz) and the only requirement is the purchase of OML cable to con- nect the instrument to PC. It is manufactured in version RS 232 and USB and is compatible with all ORBIT MERRET instruments.

  • Page 12: Symbols Used In The Instructions

    Setting the minus sign is performed by the key on higher decade. When editing the item substraction must be made from the current number (e.g..: 013 > , on class 100 > -87) 12 | INSTRUCTIONS FOR USE OM 402PWR...

  • Page 13: Control Keys Function

    SHOW  item will not be displayed in USER menu item will be displayed in USER menu with the option of setting SHOW item will be solely displayed in USER menu INSTRUCTIONS FOR USE OM 402PWR | 13...

  • Page 14: Setting "Light" Menu

    WITHOUT (1) KILO (1000) “CHANNEL I” - CURRENT “CHANNEL U” - VOLTAGE “CHANNEL P” - ACTIVE POWER “CHANNEL FR” - FREQUENCY “S” - APPARENT POWER “Q” - IDLE POWER “COS FI” - POWER FACTOR 14 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 15 Preset from manufacture Password “0” Menu LIGHT USER menu Upon delay exceeding 60 s the programming Setting the items mode is automatically discontinued and the instrument itself restores the measuring mode Preset “POWER” INSTRUCTIONS FOR USE OM 402PWR | 15...
  • Page 16 0 …150 mV 0 …2,5 A I R.3 0 …300 mV 0 …5 A = „I R.3“ (range „P“) Range “I R.2” 0…150 mV Example I R. 3 I R. 2 MODE U 16 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 17 - measures both the DC and the AC component component of the input signal Filter is on   = NO - measures solely the AC component of input signal Measurrement of alternating component onlyy Example MAX I INSTRUCTIONS FOR USE OM 402PWR | 17...
  • Page 18 Constant 1   of measuring units, display projection without prefix = 1 (- NULL) K-KILO Constant 1000   prefix “K” added Multiplying constant 1000 > PREF. I = K-KILO Example -NULL K-KILO FORM. I 18 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 19 = 450 - range of the setting is -999…9999 - position of the DP does not affect display projection Projection for 450 V > MAX U = 1000 Example 0000 1000 PREF. U INSTRUCTIONS FOR USE OM 402PWR | 19...
  • Page 20 Setting projection of the   decimal point = 000.o - positioning of the DP is set here in the measuring mode Projection of DP on display > 0000 Example 000. o 0000 3F. G RID 20 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 21 Constant 1   of measuring units, display projection without prefix K-KILO Constant 1000   = 1 (- NULL) prefix “K” added Multiplying constant 1000 > PREF. P = K-KILO Example -NULL K-KILO FORM. U INSTRUCTIONS FOR USE OM 402PWR | 21...
  • Page 22 From „Max. value“ From „Apparent power“ From „Idle power“ COS. FI From „Cos Fi“ Input Mat. functions from “Channel U” > INP. M = FIL. U Example FIL. P FIL. U INP. M. 22 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 23 = FLOA. P. - positioning of the DP is set here in the measuring Projection of DP on display > 000000 Example FLOA. P. 000000 MENU *subsequent item on the menu depends on instrument equipment INSTRUCTIONS FOR USE OM 402PWR | 23...
  • Page 24 Setting limit 2 > L 2 = 53.1 Example 0531 00531 000531 000531. 00053. MENU * subsequent item on the menu depends on instrument equipment Items for “Limits” and “Analog output” are accessible only if incorporated in the instrument. 24 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 25 - contingent modification of hysteresis or delay „Hystresis”=0, „Delay”=0 may be performed in “PROFI” menu Setting limit 4 > L 4 = 103 Example MENU * subsequent item on the menu depends on instrument equipment INSTRUCTIONS FOR USE OM 402PWR | 25...
  • Page 26 Display value for the beginning of the AO range > MIN A.O. = 0 Example MAX A. O . Items for “Limits” and “Analog output” are accessible only if incorporated in the instrument. 26 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 27 Assigning the display value   to the end of the AO range - range of the setting: -9999…9999 = 100 Display value for the end of the AO range > MAX A.O. = 120 Example MENU INSTRUCTIONS FOR USE OM 402PWR | 27...
  • Page 28 - Prior to execution of any modifications you will be asked to confirm your selection. (YES) - in the event of error calibration it is feasible to restore manufacture calibration Restoration of manufacture setting > YES Example RE. CAL. RE. SET. 28 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 29  LANG. Selection of language in   instrument menu - selection of language version of the instrument = ENGL. menu Language selection - ENGLISH > LANG. = ENGL. Example CZECH ENGL. PAS. LI. INSTRUCTIONS FOR USE OM 402PWR | 29...
  • Page 30 SW number, SW version and current the measuring mode input setting (Mode) - if SW version contains a letter in first position, then it is a customer SW 142. 8 Return to measuring mode 30 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 31 SETTING LIGHT INSTRUCTIONS FOR USE OM 402PWR | 31...

  • Page 32: Access To Menu

    • password protected access (unless set as follows under the item SERVIC. > N. PASS. > LIGHT =0) • for access to LIGHT menu passwords for LIGHT and PROFI menu may be used 32 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 33 WITHOUT (1) KILO (1000) “CHANNEL I” - CURRENT “CHANNEL U” - VOLTAGE “CHANNEL P” - ACTIVE POWER “CHANNEL FR” - FREQUENCY “S” - APPARENT POWER “Q” - IDLE POWER “COS FI” - POWER FACTOR INSTRUCTIONS FOR USE OM 402PWR | 33...
  • Page 34 CL. M. M . measurement OUTPUT. CL. MEM. CL. MEM. Resetting the instrument   SERVIC. EXT. IN. memory - resetting memory with data measured in the KEYS “FAST” or “RTC” modes - not in standard equipment 34 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 35 MODE U 2. 5 2. 5 2,5 measurements/s   OUTPUT. READ/S 1. 2 1. 2 1,2 measurements/s   SERVIC. EXT. IN. AC. FIL. 0. 6 KEYS SWITCH. 0. 6 0,6 measurements/s   TIM. SW. INSTRUCTIONS FOR USE OM 402PWR | 35...
  • Page 36 MODE I TIM. SW. Setting switching interval   CHANNE. CONFIG MODE U for projection OUTPUT. READ/S - time is adjustable in range 0,5…99,9 s SERVIC. EXT. IN. AC. FIL. KEYS SWITCH. TIM. SW. 36 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 37 Setting the real time clock   (RTC) INPUTS CLEAR TIME 00. 0 0. 0 0 TIME Time setting   CHANNE. CONFIG. DATE OUTPUT. - format 23.59.59 DATE Date setting   SERVIC. EXT. IN. - format DD.MM.YY KEYS INSTRUCTIONS FOR USE OM 402PWR | 37...
  • Page 38 - after selecting this option setting for “EXT. 2” and “EXT. 3” “Cos fi” LOG. Selection of storing data   “Min” into instrument memory Procedure identical for EXT. 2 and EXT. 3. “Max” 38 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 39 AO SERVIC. EXT. IN. M. HOLD D. + A. O . + L. “HOLD” locks the value   displayed, on AO and limit KEYS evaluation “HOLD” locks the entire   instrument INSTRUCTIONS FOR USE OM 402PWR | 39...
  • Page 40 ENTER cos fi (Mat. Fn.) Preset > CURRENT LEFT Power (Chan. P) Frequency (Chan. F) DOWN Voltage (Chan. U) Setting is identical for LEFT, DOWN, UP and ENTER ENTER cos fi (Mat. Fn.) 40 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 41 -1…1 range is converted to to 0…2 for „Channel U“ TARE p Temporary projection of tare   for „Channel P“ TARE F Temporary projection of tare   Setting is identical for LEFT, DOWN, UP for „Channel F“ and ENTER INSTRUCTIONS FOR USE OM 402PWR | 41...
  • Page 42 SAVE. M NO  ALL  IN  OUT ENTER MNU. LE. LIM. 1  OFF 4 MIN. M AX. INP. M. M . NO  CHAN. I  FIL. I  COS. 02 42 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 43 CHAN. I  FIL. I  CHAN. U  FIL. U  MAT. FN.  COS. 02  MIN  MAX. BRIGHT. 0%  25%  50%  75%  100% Upon delay exceeding 60 s the programming mode is automatically discontinued and the instrument itself restores the measuring mode INSTRUCTIONS FOR USE OM 402PWR | 43...
  • Page 44 Direct access to item   “OFF 2” OFF 3 Direct access to item   “OFF 3” OFF 4 Direct access to item   “OFF 4” Setting is identical for LEFT, DOWN, UP and ENTER 44 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 45 SETTING PROFI INSTRUCTIONS FOR USE OM 402PWR | 45...

  • Page 46: Setting Mathematic Functions

    - range of the setting is -9999…9999 CHANNE. CHAN. U FILTER OUTPUT. CHAN. P PREF. I SERVIC. CHAN. F FORM. I MAT. FN. SWCH. I Setting is identical for “CHAN. U” MIN. M AX LOG. I 46 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 47 (e.g: “CON. F.I”=2,5 > display 0, 2.5, 5,..) Floating filter CON. F. I Setting constants   Constant F.A = 5.0 - this menu item is always displayed after selection of particular type of filte Exponential filter Constant F.A = 5.0 INSTRUCTIONS FOR USE OM 402PWR | 47...
  • Page 48 Setting DP - XX.xx   0. o oo Setting DP - X.xxx   FLOA. P. Floating DP   “Channel I” - 00.oo “Channel U” - 000.o “Channel P” - 0000 “Channel F” - 00.oo 48 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 49 Only data measured outside   the set interval is stored in memory FROM I Setting the initial interval   value - setting range: -9999…9999 TO I Setting the final interval   value - setting range: -9999…9999 INSTRUCTIONS FOR USE OM 402PWR | 49...
  • Page 50 FORM. P balanced take-off in all phases - for P, S Q the value is multiplied by 3x MAT. FN. SWCH. P MIN. M AX LOG. P Setting is identical for “CHAN. I” 50 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 51 (e.g: “CON. F.F”=2,5 > display 0, 2.5, 5,..) CON. F. F Setting constants   - this menu item is always displayed after selection of particular type of filte Other settings are identical with settings for “Channel I” INSTRUCTIONS FOR USE OM 402PWR | 51...
  • Page 52 PREF. M From “Min. value”   FORM. M COS. FI DESC. M From “Max. value”   SWCH. M From “Apparent power”   LOG. M From “Idle power”   COS. FI From “Cos fi”   52 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 53  SWCH. M ROOT Root   LOG. M     CON. - Setting constants for   calculation of mat.functions - this menu is displayed only after selection of given mathematic function INSTRUCTIONS FOR USE OM 402PWR | 53...
  • Page 54 Setting DP - XXXX.xx   CON. E FLOA. P. CON. F 000. o oo Setting DP - XXX.xxx   PREF. M FLOA. P. Floating DP   FORM. M DESC. M SWCH. M LOG. M 54 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 55 Projection permitted   SERVIC. CHAN. F CON. B MAT. FN. CON. C Projection restricted   MIN. M AX CON. D CON. E CON. F PREF. M FORM. M DESC. M SWCH. M LOG. M INSTRUCTIONS FOR USE OM 402PWR | 55...
  • Page 56 FORM. M FROM M Setting the initial interval   DESC. M value - setting range: -9999…9999 SWCH. M TO M Setting the final interval   LOG. M value - setting range: -9999…9999 56 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 57 MAT. FN. From “Mathematic function”   COS. FI From “Cos fi”   “COS. 02” is derived from “COS. FI.” where for evaluation -1…1 range is converted to to 0…2 INSTRUCTIONS FOR USE OM 402PWR | 57...
  • Page 58 - selection of the mode in the event of full instrument memory CHANNE. LIMITS START Rewriting values prohibited OUTPUT. DATA STOP   SERVIC. AN. OUT. PERIOD. Rewriting values permitted,   the oldest get rewritten by DISP. TRIGER the latest 58 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 59 A new recording is possible after the deletion of the latest recording. It is possible to abort a recording before its completion 3 . Termination by reading out the data. - ext. input, button or reading data via RS INSTRUCTIONS FOR USE OM 402PWR | 59...
  • Page 60 Z < 0 - Switch-on relay TYPE > SWITCH-OFF LED signalization Z > 0 - Switch-off relay TYPE > SWITCH-ON LED signalization Z < 0 - Switch-off relay TYPE > SWITCH-OFF LED signalization 60 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 61 From “Max. value”   “COS. 02” is derived from “COS. FI.” where for Setting is identical for LIM 1, LIM 2, LIM 3 evaluation -1…1 range is converted to to 0…2 and LIM 4 INSTRUCTIONS FOR USE OM 402PWR | 61...
  • Page 62 LIM 4 LIM. L. 1 DISP. HYS. L. 1 Setting is identical for LIM 1, LIM 2, LIM 3 ON L. 1 and LIM 4 OFF. L. 1 PER. L. 1 TIM. L. 1 62 | INSTRUCTIONS FOR USE OM 402PWR...

  • Page 63: Setting Limits

    - negative time > relay switches off after crossing the limit (LIM. L1) and the set negative time (TIM. L.1) Setting is identical for LIM 1, LIM 2, LIM 3 and LIM 4 INSTRUCTIONS FOR USE OM 402PWR | 63...
  • Page 64 - MODBUS SERVIC. AN. OUT. ADR. P. B . - setting in range 1…247 DISP. PROT. ADR. P. B . Setting instrument address   - PROFIBUS - setting in range 1…127 = 19 64 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 65   “Channel I” - FIL. I “Channel U” - FIL. U “COS. 02” is derived from “COS. FI.” where for “Channel P” - FIL. P evaluation -1…1 range is converted to to 0…2 INSTRUCTIONS FOR USE OM 402PWR | 65...

  • Page 66: Setting Analog Output

    DISP. AO range - range of the setting: -999…9999 MAX A. O . Assigning the display value   to the end of the AO range - range of the setting: -9999…9999 = 100 66 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 67 - after keystroke display turns on for 10 s DISP. Display brightness - 25 %   Display brightness - 50 %   Display brightness - 75 %   100% Display brightness - 100 %   INSTRUCTIONS FOR USE OM 402PWR | 67...
  • Page 68 - linear menu > items one after another PROFI Active PROFI menu   - complete programming menu for expert users - tree menu Change of setting is valid upon next access into menu 68 | INSTRUCTIONS FOR USE OM 402PWR...

  • Page 69: Restoration Of Manufacture Setting

    LIGHT menu   deletes data stored in FLASH   cancels or linearization tables   clears tare   restore manufacture calibration   restore manufacture setting INSTRUCTIONS FOR USE OM 402PWR | 69...

  • Page 70: Instrument Identification

    - if the SW version reads a letter on first position, OUTPUT. LANG. it is a customer SW SERVIC. N. PASS. Pos. Description IDENT. type of instrument SW: number - version the input type 70 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 71 SETTING PROFI INSTRUCTIONS FOR USE OM 402PWR | 71...

  • Page 72: Setting "User" Menu

     return to item SHOW  item will not be displayed in USER menu item will be displayed in USER menu with editing option SHOW item will be solely displayed in USER menu 72 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 73 Limit one. You can exit the setting by pressing the button by which you store the latest setting and pressing the button will take you back to the measuring mode INSTRUCTIONS FOR USE OM 402PWR | 73...

  • Page 74: Data Protocol

    (D) (D) (D) (D) (D) <ETX> <BCC> Command confirmation (instrument) <CR> <CR> Messbus No - data is transmitted permanently <CR> <CR> <DLE> <NAK> Instrument identification <CR> HW identification <CR> One-time transmission <CR> Repeated transmission <CR> 74 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 75 Confirm error statement format >HH <CR>, where HH is value in HEX format and range 00 …FF . The lowest bit stands for „Relay <BCC> Check sum -XOR 1“, the highest for „Relay 8“ INSTRUCTIONS FOR USE OM 402PWR | 75...

  • Page 76: Error Statements

    E. CLR upon repeated error statement send instrument for repair, Memory was empty (presetting carried out) possible failure in calibration E. . OUT. Analogue output current loop disconnected check wire connection 76 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 77 0 to 95. Numeric value of given character equals the sum of the numbers on both axes of the table. Description is cancelled by entering characters with code 00 INSTRUCTIONS FOR USE OM 402PWR | 77...

  • Page 78: Technical Data

    Mathematic functions OM Link: company communication interface for setting, operation and update of instrument SW Watch-dog: reset after 400 ms Calibration: at 25°C and 40 % of r.h. * values apply for resistance load 78 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 79 Insulation resist.: for pollution degree II, measurement cat. III instrum.power supply > 670 V (PI), 300 V (DI) Input/output > 300 V (PI), 150 (DI) EMC: EN 61326-1 PI - Primary insulation, DI - Double insulation INSTRUCTIONS FOR USE OM 402PWR | 79...

  • Page 80: Instrument Dimension And Installation

    3. press the travellers close to the panel INSTRUMENT DISASSEMBLY 1. slide a screw driver under the traveller wing 2. turn the screw driver and remove the traveller 3. take the instrument out of the panel 80 | INSTRUCTIONS FOR USE OM 402PWR...

  • Page 81: Certificate Of Warranty

    - unavoid - other unprofessional interventions - other unprofe The manufacturer performs guarantee and post.guarantee repairs unless provided for otherwise. guarantee and post.guarantee otherwise. Y E A R S Stamp, signature tamp, s INSTRUCTIONS FOR USE OM 402PWR | 81...
  • Page 82 NOTE 82 | INSTRUCTIONS FOR USE OM 402PWR...
  • Page 83 NOTE NOTE INSTRUCTIONS FOR USE OM 402PWR | 83...
  • Page 84 ORBIT MERRET, spol.s r.o. and that our company has taken all measures to ensure conformity of all products of the types referred-to hereunder, which are being brought out to the market, with technical documentation and requirements of the appurtenant Czech statutory orders.

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