kW-Transmitter APM10 Technical information Version 1.0 Generelt * Transmitter for kW, 3 phase symmetrical load * APM10 may be connected to a 3 phase net of up to 3x500Vac * Measures Power from the formula P = 33333 x U x I x cos * Internal Current Transformer * Input Current Range 5, 10, 20, 25, 40, 60 Aac * 24V Power Supply * Analogue output 0(4)-20mA or 0(2)-10V * Galvanic insulation between input and output * Test Voltage 3kV Features APM10 is a member of the Unipower family APMxxx, but can also be DIP-switch settings used for datalogging, primarily in connection with modules from the Access to a 4 pole DIP-switch is found on the side of the module. The HCxxx transmitter family. See page 2 for an overview of the transmitter function of the switches is shown in the table below. SW1 is used to family. select 0-20mA or 4-20mA output. SW2-SW4 is used to set input current Input range. If a larger range is needed, for instance 2.5A, this may be achieved The module is connected to a 24V Power Supply. The phases L1, L2 by selecting 5A with the DIP-switch and leading the cable twice through and L3 are connected using the terminals 1, 3 and 5. See typical instal- the internal CT. The final row in the table shows the kW range of the lation on page 2. The phase order is of no importance, but it is important corresponding setting for the current range. The unit is calibrated at to measure the current in the same phase as connected to the modules 3x400Vac, but may be delivered calibrated at other voltages. Terminal 1. Also, pay attention to the direction of the current. Analogue output The module has an analogue output. Using the DIP-switch 0-20mA or 4-20mA may be selected. The 0-10V output is selected by setting the DIP-switch to 0-20mA and establising a connection between GND (Ter- minal 7) and X1(Terminal 8) MODbus Datalogging may be performed by connecting the modules analogue output to one of the inputs of the HC300 Dat module. Technical Specifications Mechanical Electrical Housing: Lexan UL94V-0 (Upper) Power Supply: 24Vdc 5% Noryl UL94V-0 (Lower) Consumption: 60 mA max Mounting: M36 for 35 mm DIN rail Input Voltage Range: 3x200 to 3x500 Vac IP Class: Housing IP40. Connector IP20 Input Current Range: 5, 10, 20, 25, 40, 60 Aac 2 Connector: Max 16A. Max 2,5 mm Input frequency Range: 10-150Hz Max torque 0,6 Nm Accuracy: Class 2 O Temp.: -15 to +50 C Analogue output: 0(4)-20mA or 0(2)-10V Weight: 200 g Load impedance: Max 500 at current Dimens.: D 58 x W 36 x H 86 mm Min 100 k at voltage CE mark: EN61326A, LVD EN61010Typical Installation Notes The APM10 is connected to the 3 phases and load as illustrated in the figure to the right. For futher information see the section Input on p. 1. V/f measurement. APM10 may be used for measuring after a frequency inverter. For this terminal 1, 3 and 5 is connected to U, V and W, and the current is measured in phase U. Note: At inverted frequencies close to the net frequency an intermodulation phenomenon may occur caused by the sawtooth voltage on the charging capacitor of the inverter. The phenomenon is seen as a low frequency fluctuation of the output signal. This is most evident when using a single phase supplied frequency inverter due to the sawtooth voltage frequency of 100 Hz. In a 3 phase supplied inverter the sawtooth voltage frequency is 300 Hz and the intermodulation phenomenon is neglible. If this is a problem we recommend using our APM380 and APM382 units, both of which are based on 3 phased measurement thereby eliminating the above mentioned phenomenon. Single phase measurement. The module may be used for uncalibrated single phase measurements. This is achived by connecting L2 (terminal 3) and L3 (terminal 5) to N. For 100% output the current must be increased by a factor of 1.5. On request the APM10 can be provided in a version modified and calibrated to an single phase net. The HC300 transmitter Family mA transmitter HC304 Datalogger HC300 O transmitter HC302 2 HC304 is a multipurpose trans- HC300 is a datalogger and HC302 is an oxygentrans- mitter. It is produced in 2 ver- mitter with up to 4 analogue MODBus master. The unit has sions depending on the oxygen inputs. The unit has an 4 analogue inputs which may be logged. Futhermore up to 14 sensor. The unit has 1 analogue analogue output and it may be connected to a MODBus net- nodes may be connected using output and it may be connected work for datalogging. The RS485, resulting in up to 60 to a MODBus network for datalogging. Temperature- measured inputs may be dis- measuring points. Sampletimes compensation is done using a played as engineering values from 1 to 600 sec. Memory is 4 Mbyte FLASH Pt100 or an NTC sensor. The using the build-in scaling functionality. unit also displays temperature. pH transmitter HC301 Conductivity transmitter HC303 Controller HC320 HC301 is a pH transmitter with HC303 is a conductivity trans- HC320 has two independent 1 analogue output and it may mitter. The unit has 1 analogue limits each free programmable be connected to a MODBus as either max- or min- limit. The output and it may be connected network for datalogging. Auto- to a MODBus network for necessary timers (start- and mated temperature compen- datalogging. Up to 3 measuring response) and features needed sation is possible using a ranges may be selected. Auto. for an efficient controller is also Pt100/Pt1000 sensor or a fixed temperature compensation is included. Input signal is any user selectable temperature. 0(4)-20mA and two relays sig- possible using a Pt100/Pt1000 The unit displays pH and sensor. The unit displays nal alarm condition. The input O temperature ( C). conductivity and temperature. signal may be scaled down to 50%. Example of MODBus network with HC300 as Master Notes: The example on the right showa a network consis- ting of 1 master and 3 nodes. The HC300 is connected to 4 sensors and the MODbus. To maintain galvanic insulation between input and output two 24V power supplies must be applied. The HC301 measures pH and temperature and The HC302 measures oxygen. The HC304 is connected to 4 data signals. In this example data is collected from a total of 11 data sig- nals. If the distance between the modules is too big the RS485 network is terminated with a resistance RT of typically 120. The included cabel is used when transfering data from the the HC300 to a PC. Data Sheet for Unipower APM10/400V. September 2009. Subject to change.