Observator Instruments OMC-042 User Manual
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Observator Instruments OMC-042 User Manual

Low power 2g/3g/4g data loggers
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OMC-042 & OMC-043 & OMC-044
Low power 2G/3G/4G data loggers
Title
:
User Manual OMC-042, OMC-043, OMC-044
Version
:
FW 2.4
Date
:
April-2021

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Summary of Contents for Observator Instruments OMC-042

  • Page 1 OMC-042 & OMC-043 & OMC-044 Low power 2G/3G/4G data loggers Title Date User Manual OMC-042, OMC-043, OMC-044 April-2021 Version FW 2.4...
  • Page 2 OPERATING THE DEVICE. PREFACE Congratulations! With your purchase of an Observator Instruments Low Power data logger with mobile network capabilities. This manual describes the operation and (hardware) installation of the OMC-042/043/044 data logger. The chapter Getting Started briefly describes the data logger, prepares you to install it, and tells you how to put it into operation.

  • Page 3: Table Of Contents

    Timestamp round down ........................29 Continuous Alarm Sampling (OMC-043/044 only) ................29 Digital Alarm output port (OMC-043), or Use module power as alarm output (OMC-042) ....29 Deployment Date and Time ......................... 30 Daily operating time slot (OMC-043/044 only) ..................30 Time zone ............................
  • Page 4 Network Signal Sensor ........................... 39 Independent data log ........................... 39 Signal bars ............................39 Signal dB/%/indication/bit error rate ....................39 Aggregation Channels ..........................40 Calculation Channels (OMC-043/044 only) .................... 41 Syntax ..............................41 OMC-042 / 043 / 044 Data loggers Users’ manual page 4...
  • Page 5 Parameters ............................47 Sentence filter ..........................48 Field position ............................ 48 Field type ............................48 Example: ............................48 Generic NMEA............................. 48 RS485 ..............................49 SDI-12 ..............................49 Measurement command ........................49 OMC-042 / 043 / 044 Data loggers Users’ manual page 5...
  • Page 6 Authentication ............................61 Data format ............................61 Remote configuration transfer and firmware upgrade ................. 61 TCP Output ............................. 62 Server ..............................62 TCP port .............................. 62 Authentication ............................62 OMC-042 / 043 / 044 Data loggers Users’ manual page 6...
  • Page 7 Firmware upgrade procedure ......................80 Firmware upgrade over the air ......................80 Firmware Driver limitations ........................80 Power Switch Limitations ........................81 Modem ..............................81 Modem Firmware Upgrade ........................81 SD-card ..............................81 OMC-042 / 043 / 044 Data loggers Users’ manual page 7...
  • Page 8 OMC-043 ..............................91 Pin descriptions ............................92 Analog Inputs............................92 Analog Input 1 to 4 (OMC-042) or 1 to 2 (OMC-043) ..............92 Analog Input 3 to 4 (OMC-043) ......................92 Analog Input 5 (OMC-043) ....................... 92 Analog Input 5 to 8 (OMC-042 only) ....................92 RS485 A &...

  • Page 9: Product Description

    Alarming by SMS and data delivery by HTTP, e-Mail, FTP or TCP Internal voltage convertor for supplying 12 VDC power to the connected sensor(s), Stable excitation voltage to power Wheatstone bridged sensors (OMC-042 only), Firmware upgrade over the air for adding new features to your device.

  • Page 10: Models And Editions

    Models and Editions OMC-042 The OMC-042 data logger is equipped with a built-in QUAD-band GPRS-modem, an internal temperature sensor, 4GB micro SD card and a 2FF SIM card slot. The logger can be powered by an internal 3.6 Volt Lithium battery that will last for years when the logger is configured in a low-power mode. It is also possible to power the data logger using an optional integrated solar panel with 3xAA rechargeable NiMH batteries.
  • Page 11 The data logger will be supplied without pre-mounted cable glands, giving the user the freedom to choose the number and size of the glands himself, to avoid unnecessary points of risk for moisture penetration. We recommend removing the PCB before drilling. OMC-042 / 043 / 044 Data loggers Users’ manual page 11...
  • Page 12 15) 3V6 power supply connector (to PV or DC cover) 17) RTC clock battery. OMC-044 The OMC-044 is similar to the OMC-043, but with the additional feature of supporting 4G. OMC-042 / 043 / 044 Data loggers Users’ manual page 12...

  • Page 13: Getting Started

    • Avoid contact with the electronic parts around the SIM card. • Remove power before changing or inserting a SIM card. • The same applies to the SD-card. OMC-042 / 043 / 044 Data loggers Users’ manual page 13...

  • Page 14: Power On For The First Time

    Windows XP, W7, W8 or W10. The USB virtual COM-port driver is installed when installing ‘OMC- Terminal’. ‘OMC-Terminal’ can be downloaded from www.observator.com The OMC-042 can also be programmed using OMC-programmer. OMC-programmer can be downloaded from www.observator.com. OMC-042 / 043 / 044 Data loggers Users’ manual page 14...

  • Page 15: Operating Basics

    So, press 3 <Configuration Setup> [0] Run [1] Date & time >> 2015/11/26 09:11:28 [2] System information >> 5159422 [3] Configuration setup >> [4] Configuration review [5] Maintenance > OMC-042 / 043 / 044 Data loggers Users’ manual page 15...
  • Page 16 We will use the actual date & time to start right away. 4. Exit and save changes. 5. Now, the overall configuration is setup and we proceed with the configuration of the sensors and data output. OMC-042 / 043 / 044 Data loggers Users’ manual page 16...
  • Page 17 2m water level, while the sensors range is 0..10m) 5. If necessary option 9 can be used to perform an offset correction by measuring a single calibration point. 6. Save and Exit OMC-042 / 043 / 044 Data loggers Users’ manual page 17...
  • Page 18 >> 0 meter [7] Parameter value at 20 mA >> 10 meter [8] Determine linear conversion function (2 calibration points) [9] Determine linear offset only (1 calibration point) [R] Remove > OMC-042 / 043 / 044 Data loggers Users’ manual page 18...
  • Page 19 Consult the manual of your digital sensor and check the response time. The sample-interval must be larger than the response time of the sensor. OMC-042 / 043 / 044 Data loggers Users’ manual page 19...
  • Page 20 Press any key! > Now we can setup the FTP, TCP and Email output Therefore go to menu-option: Email output FTP output. TCP output HTTP output Enter your server-settings. OMC-042 / 043 / 044 Data loggers Users’ manual page 20...
  • Page 21 It is strongly recommended to include some internal sensors in the configuration, because of the monitoring of the performance of the data logger itself. Most users like to keep track of the battery-life for example. OMC-042 / 043 / 044 Data loggers Users’ manual page 21...
  • Page 22 The result should be like this: 13/07/05 14:22:04 Actual Values ML-315 Logger Version 2.1 Build 2 AIN1 Waterlevel meters MSL Temperature 20.2 Pressure Rest Capacity Processor Temperature 57.4 Voltage Current OMC-042 / 043 / 044 Data loggers Users’ manual page 22...

  • Page 23: Reference

    Reference Principle of Operation Your Observator Instruments data logger is capable of collecting and storing data of multiple sensors. To accomplish this, many tasks are performed. These “tasks” are scheduled and executed on their specified time. The timing of this process is very important and is determined by the internal scheduler. This scheduler keeps track of all the internal states of the various tasks and assigns processor time to the different tasks.
  • Page 24 Because in that case, the sample interval is valid, and the user can observe the value’s obtained from the sensor in real time. In this case, the user can evaluate these values every 5 seconds. OMC-042 / 043 / 044 Data loggers Users’ manual page 24...

  • Page 25: Parameters

    Setting which enables the storage of the alarm condition of the parameter to the SD card. When set to on it will store an unscheduled data log in a single data record, and the passing of the alarm limits in a system record. OMC-042 / 043 / 044 Data loggers Users’ manual page 25...

  • Page 26: Alarm Output

    Within every parameter settings menu, the user can define all limits and delays to customize his alarming mode. More info on these settings and the alarming mode is found in section: Alarming OMC-042 / 043 / 044 Data loggers Users’ manual page 26...

  • Page 27: Configuration Menu Settings

    >> Span = 1.102; Offset = -1 [-] Analog input 3 >> Span = 1.053; Offset = -1 [-] Analog input 4 >> Span = 1.056; Offset = -1 > OMC-042 / 043 / 044 Data loggers Users’ manual page 27...

  • Page 28: Configuration Setup

    [9] Summer time (daylight saving) >> Not used > General Settings Here you enter your global settings, like datalog interval etc. These are the settings: Exit Exits the menu OMC-042 / 043 / 044 Data loggers Users’ manual page 28...

  • Page 29: System Name

    042) is a global setting, which enables the digital alarm output via the module power switch, and disables the normal use of the module power. The user must also select the Alarm output option, in the parameter- OMC-042 / 043 / 044 Data loggers Users’ manual page 29...

  • Page 30: Deployment Date And Time

    (default) When the user enables the summertime feature, as a consequence, there will be an anomaly in the data at the beginning and at the end of the summertime-period. OMC-042 / 043 / 044 Data loggers Users’ manual page 30...

  • Page 31: Modem Settings

    A logger, which is configured at the office, may NOT be working fine at the installation site. So, test this first, and make sure that the reception is sufficient. (1 bar absolute minimum, 3 bars is very nice) OMC-042 / 043 / 044 Data loggers Users’ manual page 31...

  • Page 32: Apn Login Test

    SMS, containing the last readings to the mobile phone of the user. The user will get it’s reply on the next SMS check interval. Pay attention! This function decreases battery-life drastically. OMC-042 / 043 / 044 Data loggers Users’ manual page 32...

  • Page 33: Internal Sensors

    You can use this sensor for approximation measurements. And also for diagnostic measurements. OMC-042 / 043 / 044 Data loggers Users’ manual page 33...

  • Page 34: Average Voltage

    This parameter provides information on the proper operation of a system. The Operating cycle is measured in seconds. Free disk space Shows the remaining disk space on the SD Card. In most cases there is sufficient space left. OMC-042 / 043 / 044 Data loggers Users’ manual page 34...

  • Page 35: Analog Sensors (Ma/V)

    (i.e. when the sensor is installed, its height is manually measured and this figure is entered, during the linear offset procedure) OMC-042 / 043 / 044 Data loggers Users’ manual page 35...

  • Page 36: Digital Sensors- Pulse Input

    So, use this mode when you have a “negative switching” sensor (a device that switches to ground and has no voltage to drive the port, e.g. a tipping bucket rain gauge). OMC-042 / 043 / 044 Data loggers Users’ manual page 36...

  • Page 37: Pull Down

    This is the speed of increase of the counter value. When e.g. a water meter is connected. The counter contains the total pumped volume, and the rate contains the flow of the water. The unit is: units/h (in case of the water meter l/h). OMC-042 / 043 / 044 Data loggers Users’ manual page 37...

  • Page 38: Digital Sensors- Alarm Input

    NOT enter alarming mode, but will continue in normal mode. Register value Holds the amount of alarms that occurred. The user can edit this value. OMC-042 / 043 / 044 Data loggers Users’ manual page 38...

  • Page 39: Network Signal Sensor

    Example: a signal of -34 dB is twice as weak as a signal of -31 dB, dB is a logarithmic presentation. Also the % presentation is NOT linear. We advise to use the signal bars. OMC-042 / 043 / 044 Data loggers Users’ manual page 39...

  • Page 40: Aggregation Channels

    E.g. a northern wind flapping between 340 and 10 degrees will result in an average northern wind of 355 instead of a faulty 175 degrees southern wind. OMC-042 / 043 / 044 Data loggers Users’ manual page 40...

  • Page 41: Calculation Channels (Omc-043/044 Only)

    Functions Besides using simple operators, mathematical functions can be used as well. The syntax of a function is: <function_name>(<arguments>). Example: sin (x) (calculates the sinus of x) OMC-042 / 043 / 044 Data loggers Users’ manual page 41...
  • Page 42 Example: abs(10.7)= 10 sqrt(x) returns the square root of x ln(x) returns the natural logarithm of x exp(x) calculates the exponent of e to x OMC-042 / 043 / 044 Data loggers Users’ manual page 42...
  • Page 43 & max Example: clip(5;0;100) returns 5 Example: clip(-10;0;100) returns 0 Synonym: If(x<min) return min;Else if(x>max) return max;Else return x OMC-042 / 043 / 044 Data loggers Users’ manual page 43...
  • Page 44 Example: gt(1;2;3;4) returns 4; synonym: if(x>y) return q; else return p ge(x;y;q;p) returns q if x greater or equal to y else return p Example: ge(1;2;3;4) returns 4; synonym: if(x>=y) return q; else return p OMC-042 / 043 / 044 Data loggers Users’ manual page 44...
  • Page 45 So, the user can changed this according to its need. You can build a multi-sensor network, by using unique addresses. OMC-042 / 043 / 044 Data loggers Users’ manual page 45...
  • Page 46 The collected data is stored in the selectable parameter(s) The user can modify the collected value if he likes, it is just a generic parameter. More on parameters see Parameters OMC-042 / 043 / 044 Data loggers Users’ manual page 46...
  • Page 47 Parameters These are the values you want to get recorded from the data sentence(s). Each parameter has 3 properties. OMC-042 / 043 / 044 Data loggers Users’ manual page 47...
  • Page 48 Similar to ‘Generic serial’-driver, but you don’t have to specify start/stop and separation characters as they are defined by the NMEA-0183 protocol. Additionally the ‘Generic NMEA’ driver supports the NMEA- 0183 checksum verification. OMC-042 / 043 / 044 Data loggers Users’ manual page 48...

  • Page 49: Parameters

    Parameters The various data values that were retrieved from the SDI-12 sensor, can be stored into different parameters. They behave like normal generic parameters. See more info: Parameters OMC-042 / 043 / 044 Data loggers Users’ manual page 49...

  • Page 50: Accessory Port

    This is a serial port which is used for supporting special serial devices, called accessory port modules. The accessory port is only equipped on specific OMC-043 models. The OMC-042 logger has two serial ports that can also be used for accessories. Below a list of supported accessories is shown.

  • Page 51: Iridium Satellite

    When using OMC-Data-Online you should ask your Iridium provider to use directIP and pass SBD messages to the same IP-address/domain and TCP-port as used for 2G/3G TCP-output from common Observator Instruments data loggers. OMC-042 / 043 / 044 Data loggers Users’ manual page 51...

  • Page 52: Settings Menu

    Backup mode When the ‘Backup’ mode is selected satellite communication will be performed only if data transfer by TCP, FTP, e-Mail or HTTP through the cellular network is failing. OMC-042 / 043 / 044 Data loggers Users’ manual page 52...

  • Page 53: Gps

    This feature helps the user to set up a region which will be guarded by the data logger. This region can be setup at the office, far away from the installation site. The region is setup by defining the size of a OMC-042 / 043 / 044 Data loggers Users’ manual page 53...

  • Page 54: Latitude/Longitude Hi/Lo Alarm Drift

    Latitude / Longitude Notation of the position, in the WSG84 system, GPS Quality Quality of the measurement. More info on this is found in the manual of your GPS. OMC-042 / 043 / 044 Data loggers Users’ manual page 54...

  • Page 55: Camera

    Camera This is used to connect an Observator Instruments camera only. It shoots a picture and stores it on the SD-card for transmission to the host. Below the settings are shown [0] Exit [1] Name >> Camera [-] Port settings >>...

  • Page 56: Display

    Display This driver is intended for the operation of an Observator Instruments display unit. With this display unit, the measurements can be consulted, locally, in a graphical way. The Observator Instruments display unit is a 3.5” color resistive touch screen display with a resolution of 320*240 pixels.

  • Page 57: Dtu Connection (Omc-043/044 Only)

    Our DTU (sometimes referred to as RTU) is not a separated product, but an integral part of our /OMC- 043/OMC-042 Low Power Data Logger functionality. Because our Data Loggers are low power and self- sustaining, the RTU function can be used to monitor "legacy" serial devices at remote locations with no access to a power grid or external power source.

  • Page 58: Port Settings

    Instead, the user gets control over the internal menu of the data logger. This is convenient for adjusting the settings of the data logger remotely. OMC-042 / 043 / 044 Data loggers Users’ manual page 58...

  • Page 59: Email Output

    This can be our native TXT format, JSON or a CSV (comma separated value) format which can easily be picked up by third party applications like Microsoft Excel. We prefer our native format as it can contain data as well is diagnostic info. OMC-042 / 043 / 044 Data loggers Users’ manual page 59...

  • Page 60: Ftp Output

    This can be our native TXT format, JSON or a CSV (comma separated value) format which can easily be picked up by third party applications like Microsoft Excel. We prefer our native format as it can contain data as well is diagnostic info. OMC-042 / 043 / 044 Data loggers Users’ manual page 60...

  • Page 61: Http Output

    Type’ header to distinguish a picture post from a log file post. Remote configuration transfer and firmware upgrade HTTP can also be used for remote configuration transfer and firmware upgrades, please ask your distributor for our HTTP integration manual. OMC-042 / 043 / 044 Data loggers Users’ manual page 61...

  • Page 62: Tcp Output

    A satellite transceiver can be deployed as the data logger's main communication device or as backup in case the 2G/3G network is temporarily unavailable or out of reach (OMC-043/044 only). Please read more at chapter “Accessory port – Iridium Satellite”. OMC-042 / 043 / 044 Data loggers Users’ manual page 62...

  • Page 63: Configuration Review

    Disabled 00:00:01 Not used Disabled 00:00:10 Not used Disabled MINVi 00:00:10 Not used Disabled 00:00:10 Not used Disabled 00:00:10 Not used Disabled 00:00:10 Not used Disabled [0] Exit > OMC-042 / 043 / 044 Data loggers Users’ manual page 63...

  • Page 64: Alarm List

    > Alarm limits This gives an overview of alarm limits, used in the configuration. See example below: Alarm limits Code Low-low Low High High-high Hysteresis MINVi [0] Exit > OMC-042 / 043 / 044 Data loggers Users’ manual page 64...

  • Page 65: Maintenance Menu

    When finished press any key not interfere with your real measurements, defined in the configuration. Port 1 Counter = 0 Port 2 Counter = 0 Port 3 Counter = 0 OMC-042 / 043 / 044 Data loggers Users’ manual page 65...

  • Page 66: Sd Card Test

    [2] RS485 8N1 [2] Accessory port [3] SDI12 [M] Modem [4] RS232 7E1 > [5] RS232 8E1 [6] RS232 8O1 [7] RS485 8E1 [8] RS485 8O1 [9] RS485 8N2 > OMC-042 / 043 / 044 Data loggers Users’ manual page 66...

  • Page 67: Data Download

    (which is a static property of the data logger). A very practical method of configuring Observator Instruments data loggers is to use one configuration- file to configure the data logger, and afterwards personalize the logger with a unique system name.

  • Page 68: Firmware Upgrade

    Normally, the user does NOT use this menu or its options. Only when the logger has severe problems, this menu can help (it is this like the old rescue disk you received with your windows computer). OMC-042 / 043 / 044 Data loggers Users’ manual page 68...

  • Page 69: Sdi-12 Hardware

    SDI-12 The OMC-042 is provided with an SDI-12 port. This port is connected to port 2 and is shared with the normal RS232 operation. This means that the user has to select whether he wants to use RS232 or SDI-12.

  • Page 70: Rs232

    RS232 Your OMC-042 data logger comes with 2 RS232 ports, capable of baud rates of up to 115200 bps (230400 bps on request). The ports are: port 1 and port 2. Port one is shared with the RS-485 port and port 2 is shared with the SDI-12 port.
  • Page 71 EIA/RS485 is 32). For the exact number of sensors you can connect to your OMC-042 see chapter Firmware Driver limitations We recommend using twisted pair cable to connect to the sensors. OMC-042 / 043 / 044 Data loggers Users’ manual page 71...

  • Page 72: Analog Inputs (4

    Analog Inputs (4..20mA) The OMC-042 is equipped with four and the OMC-043 with two analog mA 12 bits AD-Conversion inputs. The input signal must be a 4..20 mA current loop. The impedance of the system is 150 ohms. Loop Powered Devices Some devices don’t need a power supply, but take their power from the current loop.

  • Page 73: Using Load Cells With The Omc-042

    Using Load Cells with the OMC-042 The OMC-042 is very suitable for connecting load cells and other resistive elements. A load cell acts as a bridge of Wheatstone and is a very sensitive and precise passive component. Bridge of Wheatstone The bridge of Wheatstone (the principle of operation of a load cell) is a circuit, consisting of 4 resistors.

  • Page 74: Analog Differential Input 5

    How it works: The user can enter 2 pre-defined data values into the OMC-042. This is very convenient for i.e. Scales. For example, the user has a standard load of 1 kg and one of 10 kg. He starts the calibration procedure, and starts with the 1.0 kg load.

  • Page 75: Potmeter Input (Omc-043/044 Only)

    ADC value won’t be reached. Another reason to use only high impedance potmeters. Of course, when a sensor has got a low impedance value, you can use it, but you have to compensate for the voltage-drop. OMC-042 / 043 / 044 Data loggers Users’ manual page 75...

  • Page 76: Digital Inputs

    Coil input Input #4 (OMC-042 only) is a special digital input. It is a so called “coil input”. This is a very sensitive digital input. From point of functionality, the input is exact the same as the other inputs, but electrically there are differences.

  • Page 77: Alarming

    Note: The alarm log is a log of synoptically data into an S-record. The data modifier *A is automatically placed into the D-records. OMC-042 / 043 / 044 Data loggers Users’ manual page 77...
  • Page 78 It is strongly advised to use a certain amount of hysteresis to prevent from multiple alarming warnings. The amount of hysteresis is determined by experience and information from the sensor. OMC-042 / 043 / 044 Data loggers Users’ manual page 78...

  • Page 79: Advanced Alarming (Omc-043/044 Only)

    (LEVELOK value). Instead of setting low/high limits to :LEVEL you should set the warning limits to the ALARMLEVEL channel. For safety reasons you could still set low-low/high-high limits to :LEVEL. OMC-042 / 043 / 044 Data loggers Users’ manual page 79...

  • Page 80: Firmware Upgrade

    In most cases two or three drivers are needed for minimum operation (internal driver, tcp output- driver, or email-driver). When a user has an additional analog sensor, it will take a driver as well. Example: OMC-042 / 043 / 044 Data loggers Users’ manual page 80...

  • Page 81: Power Switch Limitations

    A user wants to connect a large number of INW CT2X sensors to an OMC-042. This sensor measures temperature and conductivity. So each sensor “uses” two parameters. Also he likes to send the data via FTP, and he enables the following internal sensors: Rest Capacity, Battery Voltage, and Current. So,...

  • Page 82: Native Txt Data Format

    So, the D-record consists of a ‘D’ character followed by a timestamp, and after that, one or more series of parameter code and parameter name. So the D-record consists of these elements: OMC-042 / 043 / 044 Data loggers Users’ manual page 82...

  • Page 83: Parameter Code

    The abbreviation of the full parameter name, it may be up to 7 characters long. Parameter value: The numeric value of the measurement, together with a optional data modifier, forms the measurement. Example Data-record(s): D;110928030200;RCi;95.8;PTi;50.1;Vi;3.6;AVGCi;71;OCi;0.25;MAXCi;71 D;110928030300;RCi;95.8;PTi;49.3;Vi;3.6;AVGCi;71;OCi;0.25;MAXCi;72 D;110928030400;RCi;95.8;PTi;49.5;Vi;3.6;AVGCi;72;OCi;0.25;MAXCi;72 D;110928030500;RCi;95.8;PTi;49.1;Vi;3.6;AVGCi;72;OCi;0.25;MAXCi;54 D;110928030600;RCi;95.8;PTi;49.1;Vi;3.6;AVGCi;54;OCi;0.25;MAXCi;72 OMC-042 / 043 / 044 Data loggers Users’ manual page 83...

  • Page 84: System Records

    The data logger did receive a data value from the sensor, but it was out of boundary. This exception is very rare. Alarm Value The data logger has received a value, which is outside the limits of the particular parameter. OMC-042 / 043 / 044 Data loggers Users’ manual page 84...

  • Page 85: Json Data Format

    “code” in the “channels” array. A channel variable can be a number (the logged value) or a string being the logged value concatenated with a data modifier. (See: 4.35.3 Data Modifiers) OMC-042 / 043 / 044 Data loggers Users’ manual page 85...

  • Page 86: Input-Drivers

    Analog sensors The OMC-042 is provided with 4 factory-calibrated analog inputs with 12 bit ADC resolution. Analog input 5 and 6 are factory pre-calibrated amplified differential inputs with 16 bit ADC resolution.

  • Page 87: Digital Pulse Sensor

    The menu-item “pulses per unit” is very important and converts the input pulses into a physical value. It is advised to test the hardware first, before proceeding to selecting the right settings for bucket-size etc. OMC-042 / 043 / 044 Data loggers Users’ manual page 87...

  • Page 88: Counter

    0.2 mm rain, the rate is: 1 mm per 25 seconds = 144 mm / hour Important! So, also this parameter is a “running value”, it extrapolates the rainfall in the next hour, based upon an actual situation. So keep this in mind. OMC-042 / 043 / 044 Data loggers Users’ manual page 88...

  • Page 89: Power Supply

    The data logger PCB is designed to work with a power supply of minimum 0.8 to maximum 5V DC The OMC-042 and OMC-043-LI are powered with a D-size battery holder for a 3.7V Lithium cell. The OMC- 042 and OMC-043 can optional be provided with a cover with integrated NiMH AA solar charger, 8..30V DC-adapter with NiMH AA charger.

  • Page 90: Pin Configuration

    U.FL connector for GSM antenna USB connector for local configuration +VBAT (0.8 .. 5V DC) Positive terminal for power source -VBAT (0.8 .. 5V DC) Negative terminal for power source OMC-042 / 043 / 044 Data loggers Users’ manual page 90...
  • Page 91 U.FL connector for external antenna +VBAT (3.6V DC) Positive terminal for power source -VBAT (3.6V DC) Negative terminal for power source Internal USB connector USB connector for local configuration Pin description OMC-042 / 043 / 044 Data loggers Users’ manual page 91...

  • Page 92: Pin Descriptions

    Pin descriptions Analog Inputs Analog Input 1 to 4 (OMC-042) or 1 to 2 (OMC-043) These are Current-inputs, with an input impedance of 15 ohms. The range is 4 .. 20 mA. The circuits are equipped with over current-protection. To use this input connect the + of the sensor to the + of the power switch and the –...

  • Page 93: 3V6

    Seal your antenna-connector with vulcanizing tape, to prevent from oxidation Make sure the SIM you intend to use is compatible with your network and the pin code protection is disabled. OMC-042 / 043 / 044 Data loggers Users’ manual page 93...

  • Page 94: Maintenance And Repair

    –support. The real time clock is also calibrated during the manufacturing process, and has very good long life stability (see spec. sheet). Also, when operating in a harsh environment, the need for a recalibration can be applicable. Observator Instruments can perform overall calibrations any time you like.

  • Page 95: Safety

    Though it is designed to withstand a certain amount of electrical discharge (human body model) it is strongly advised to take precautions while operating or servicing the data logger. OMC-042 / 043 / 044 Data loggers Users’ manual page 95...

  • Page 96: Environment And Disposal

    Regulations for disposal of batteries may be different. Remove the batteries and dispose them in accordance to the local regulations for batteries. OMC-042 / 043 / 044 Data loggers Users’ manual page 96...

  • Page 97: Transport And Storage

    If the data logger is delivered in its standard protecting enclosure, it is strongly recommended to use this case for all transportation, until the final location of operation. This enclosure is especially designed to protect the data logger from being damaged. OMC-042 / 043 / 044 Data loggers Users’ manual page 97...

  • Page 98: Appendix

    GPS Option Module Option: not included . See manual * The Power consumption in sleep mode is when Datalogger is idle, and no tasks performing. Only the RTC is running OMC-042 / 043 / 044 Data loggers Users’ manual page 98...

  • Page 99: Connection Of A Pt-1000 Thermistor To The Potentiometer-Input

    Define a calculated channel to calculate the temperature in °C, the equation is: T=(:RT-R0)/3.84 Where :RT is the calculated resistance according to the previous step and R0 the resistance of the PT1000 at 0°C in O OMC-042 / 043 / 044 Data loggers Users’ manual page 99...
  • Page 100 5) Create a calculated channel (TPT) to calculate the temperature of the PT1000 by entering the following equation: (:RPT-1000)/3.84 Where 1000 is the resistance of the PT1000 at 0°C and RPT the parameter code of the calculated resistance channel. OMC-042 / 043 / 044 Data loggers Users’ manual page 100...
  • Page 101 Example: OMC-042 / 043 / 044 Data loggers Users’ manual page 101...

  • Page 102: Trouble Shooting

    When the data logger is NOT connected by USB, it Init Sensor GSM signal will switch into low power mode (Auto Sleep), and Init Email you won’t get any debug data. Init TCP Running OMC-042 / 043 / 044 Data loggers Users’ manual page 102...

  • Page 103: System Messages

    No SIM, or SIM not detected, or PIN on NETWORK_REG Error while trying to register on a (Temporarily) no network coverage, or network SIM subscription failure (inactive/invalid/blocked or black listed) OMC-042 / 043 / 044 Data loggers Users’ manual page 103...
  • Page 104 Shows the parameter code, When the alarm is raised alarm limit and actual value ALARM_RESET "Code;limit;value" Shows the parameter code, When the alarm is cleared alarm limit and actual value OMC-042 / 043 / 044 Data loggers Users’ manual page 104...
  • Page 105 OMC-042 / 043 / 044 Data loggers Users’ manual page 105...
  • Page 106 OMC-042 / 043 / 044 Data loggers Users’ manual page 106...

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