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Related Manuals for Kipp & Zonen CT24
Summary of Contents for Kipp & Zonen CT24
- Page 1 Kipp & INSTRUCTION MANUAL Zonen SIGNAL AMPLIFIER 4 20 mA...
- Page 2 IMPORTANT USER INFORMATION IMPORTANT USER INFORMATION Reading this entire manual is recommended for full understanding of the use of this product The exclamation mark within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance instructions in the literature accompanying the instrument.
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Page 3: Warranty And Liability
IMPORTANT USER INFORMATION WARRANTY AND LIABILITY Kipp & Zonen guarantees that the product delivered has been thoroughly tested to ensure that it meets its published specifications. The warranty included in the conditions of delivery is valid only if the product has been installed and used according to the instructions supplied by Kipp &... -
Page 4: Declaration Of Conformity
CE DECLARATION OF CONFORMITY Declaration of Conformity According to EC guideline 89/336/EEC 73/23/EEC Kipp & Zonen B.V. Röntgenweg 1 2624 BD Delft Declare under our sole responsibility that the product Type: CT 24 Name: Solar Sensor Amplifier 4 – 20 mA To which this declaration relates is in conformity with the following standards: Imissions... - Page 5 INSTRUCTION MANUAL CT 24...
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Page 6: Table Of Contents
TABLE OF CONTENTS WARRANTY AND LIABILITY Declaration of Conformity GENERAL INFORMATION SPECIFICATIONS CONNECTION OF THE CT 24 Minimising interference Selecting the supply voltage Connection for current output NEGATIVE INPUT SIGNALS CALIBRATION PROCEDURE Standard calibration Special calibration. INSTRUCTION MANUAL CT 24... - Page 7 INSTRUCTION MANUAL CT 24...
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Page 8: General Information
GENERAL INFORMATION GENERAL INFORMATION With the CT 24 it is possible to convert a low level voltage output from a solar sensor to the standard level of 4 – 20 mA or (using the supplied 500 Ohm resistor) to a 2 – 10 Volt signal. The CT 24 amplifier is designed to use with Kipp &... - Page 9 INSTRUCTION MANUAL CT 24...
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Page 10: Specifications
SPECIFICATIONS SPECIFICATIONS +12 to +30 VDC Power supply @ R Input range -5 to +20 mV Gain adjust +0.5 to +1.0 mA / mV Zero adjust +3 to +8 mA Temperature range (operating) -30°C to +70°C Housing Aluminium, grey lacquered Dimensions W x D x H 64 x 58 x 34 mm... - Page 11 INSTRUCTION MANUAL CT 24...
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Page 12: Connection Of The Ct
CONNECTION OF THE CT 24 CONNECTION OF THE CT 24 The CT 24 is meant to boost the (low level) output signal of a solar sensor. Therefore the CT 24 amplifier needs to be close to the sensor to maintain a high signal to noise ratio in the cable. The internal layout of the CT 24 is shown in figure 3.1. -
Page 13: Minimising Interference
CONNECTION OF THE CT 24 Minimising interference To obtain maximum signal to noise ratio both before and after the CT 24, it is advised to connect the CT 24 as described in this chapter. All Kipp & Zonen sensor cables have an internal shield that has to be connected to the ground (housing) of the CT 24. -
Page 14: Selecting The Supply Voltage
CONNECTION OF THE CT 24 CONNECTION OF THE CT 24 Selecting the supply voltage The CT 24 operates as a so-called 2 wire current transmitter. This means that the amplifier receives its operating current from the loop that represents the current output signal. The loop has to be powered with a power supply capable of providing a voltage between 12 and 30 Volt @ 125 Ohm. - Page 15 Input connector pins number 4 till 9 are interconnected with the output connector pins and can be used to transfer the signal from temperature sensors like a Pt100 or thermistor to the output cable. Shield Signal + Signal - figure 5.3 connection for current output INSTRUCTION MANUAL CT 24...
- Page 16 Connection for voltage output When a voltage signal is needed directly from the CT 24, the conversion from current to voltage can be made inside the CT 24. For this purpose a precision 500 Ohm resistor is supplied that can be connected through the connection strip.
- Page 17 So when the CT 24 is used with a voltage output, 2 input and 4 output wires have to be connected plus two times the shielding of both cables. Of course any other R can be used to transform the output current to a voltage, as long as the guideline from chapter 5 is followed.
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Page 18: Negative Input Signals
NEGATIVE INPUT SIGNALS NEGATIVE INPUT SIGNALS When using a pyrgeometer as input, the signal can be both positive and negative. To allow for negative inputs the zero point from the CT 24 can be adjusted to + 8mA. (see fig 3.1 zero adjust) Example with a CG 1: Sensor output –250 to + 250 W/m = -3.750 mV to + 3.750 mV... - Page 19 INSTRUCTION MANUAL CT 24...
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Page 20: Calibration Procedure
CALIBRATION PROCEDURE CALIBRATION PROCEDURE Calibration can be performed in two ways, either the CT 24 is calibrated standard with an amplification of 1mA per 1 mV and no offset adjusted (see chapter 5.1) Or a special calibration is made where the amplification and / or offset are adapted to the sensor (see chapter 5.2). -
Page 21: Special Calibration
CALIBRATION PROCEDURE Special calibration. With special calibration is meant that the sensitivity of the sensor (pyranometer) is used to adjust the gain. This is to obtain for instance a conversion of 200 W/m per mA. Example: CM 11 with a sensitivity of 5.14 x 10 V / W/m and max. - Page 22 PART NUMBERS PART NUMBERS CT 24 0305 710 Resistor 2686 002 Instruction manual 0305 260 INSTRUCTION MANUAL CT 24...
- Page 23 INSTRUCTION MANUAL CT 24...
- Page 24 C ustomer ustomer S upport upport Our customer support Für Servicearbeiten und Notre service 'Support Clientèle' remains at your disposal Kalibrierung, Verbrauchs- reste à votre entière disposition for any maintenance or material und Ersatzteile pour tout problème de repair, calibration, steht Ihnen unsere maintenance, réparation ou supplies and spares.