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Table of Contents
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Summary of Contents for martens GTL720
- Page 1 Operating Manual Clamp-on Temperature Sensor GTL720 Save for later reference!
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Page 2: Table Of Contents
Clamp-on Sensor GTL720 Table of contents Proper use (application areas) ........................1 Safety signs and symbols ........................... 1 Safety instructions .............................. 2 Product liability and guarantee ........................... 2 Standards and directives ............................ 2 Product description ............................3 Delivery content..............................3 Operating principle ............................. -
Page 3: Proper Use (Application Areas)
Clamp-on Sensor GTL720 1 Proper use (application areas) Detailed information on the application area can be found in the Chapter 2 Product description The operating safety of the device is ensured only with proper use and observation of the information given in the operating instructions. -
Page 4: Safety Instructions
Clamp-on Sensor GTL720 Safety instructions Read the product description before bringing the device into operation. Ensure that the product is fully suitable for the applications in question. The operator is responsible for the problem-free operation of the device. The operator is obliged through-... -
Page 5: Product Description
This operating manual (GTL720 included) Operating principle The GTL720 pipe clamp-on sensor measures temperatures of liquids in metal pipelines without a process con- nector touching the fluid. For this purpose, the pipe clamp sensor is mounted on the exterior of the pipe at a suitable site. -
Page 6: Design Of The Measurement System
Clamp-on Sensor GTL720 Design of the measurement system The GTL720 measuring system consists of an RLA piping adapter and a GTL720 measuring insert. Sensor insertion with round plug M12, 360° turn able Insertion GTL720 Type plate insertion GTL720 Type plate... -
Page 7: Step Response Of Clamp-On Sensor
Medium Water Mounting direction Acc. to position 1, 3.1 Mechanical mounting Table 2 Reference condition for step response GTL720 step-response (without thermal compound) Medium (Water) GTL720 Figure 5 Step-response (T ) in water, without thermal compound GTL720 step-response (with thermal compound) -
Page 8: Mounting And Electrical Installation
Clamp-on Sensor GTL720 3 Mounting and electrical installation Mechanical mounting The RLA pipe clamp sensors are available in three sizes. The adapters are adjusted to the pipe diameter (DN10 to DN80) with different highly heat- resistant silicone inserts. Frame size (Bg) Pipe Ø... -
Page 9: Mounting Notes
Clamp-on Sensor GTL720 Mounting notes min. 15 cm Flow direction min. 15 cm min. 15 cm Figure 7 Permissible types of mounting Position Characteristics Ideal: Achieves the best result, since there are no bubbles, deposits, or rising lost heat in the pipes to distort the measuring result. -
Page 10: Electrical Installation
Clamp-on Sensor GTL720 Electrical installation The electrical connection happens via the M12 round connector. For the wiring see Figure 8 Connection diagram. The device must be installed only by a qualified electrician. The national and international regulations for the installation of electrical systems of the relevant operator country apply. -
Page 11: Servicing
The device itself cannot be repaired. Replacement of the insertion is possible without process interruption Calibration / Adjustment The GTL720 pipe clamp sensors are tested prior to delivery. Upon request, this sensor can also be delivered with a certificate of calibration. A recalibration in our facilities is also possible. -
Page 12: Faultfinding
Clamp-on Sensor GTL720 Proposed calibrating system GTL-sensor insertion Retaining clamp Calibrated reference sensor Heated insert external heating Figure 9 Proposed calibration system The insert is constructed in a way to position the calibrated reference sensor very closely under the active heating surface, so that it may be used as a reference meter or regulator of the application temperature. -
Page 13: Technical Data
Clamp-on Sensor GTL720 6 Technical Data Temperature sensor Pt100 A class, acc. to DIN EN 60751 Measuring range -20..+160 °C Ambient temperature -20..+85 °C Ex-protection (simple electrical equipment) according to GTL72x + RLA, Frame size 1, 2 Ex II 1G Ex ia IIB T3/T4/T5 Ga... -
Page 14: Mechanical Design / Dimensions
Clamp-on Sensor GTL720 Mechanical design / dimensions Clamp-on sensor GTL720 Clamp-on adapter RLA Figure 10 Dimensions GTL720, RLA Frame size Pipe [mm] [mm] [mm] [mm] 13,0..19,9 20,0..33,9 34,0..53,0 60,3..75,9 76,0..88,9 Table 7 Frame size and dimensions RLA 12 / 17... -
Page 15: Ordering Code
Pt100 Sensor with M12-round plug Electrical connection GTL720 Variation 1 (standard) GTL720 Variation 2 (customized) Measuring range Range 0…160 °C Pipe wall adjustment for SS-Type pipes (GTL723, only) Not active Options Without option Table 8 GTL720 Ordering code 13 / 17 BA_MA_GTL720_EN_V1.08 BA_MA_TC125_EN_V0.13... - Page 16 Clamp-on Sensor GTL720 Clamp-on adapter Pipe diameter DIN11850 DIN11866 ISO 1127 ASME-BPE Frame Size 1 120 (12,0mm) DN10 ½“ 130 (13,0 / 12,7mm) DN10 135 (13,5mm) 172 (17,2mm) DN10 DN10 180 (18,0mm) DN15 ¾“ 190 (19,0 mm) DN15 Frame Size 2...
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Page 17: Accessories
Clamp-on Sensor GTL720 Accessories Type Description WLP10S Thermal compound Containing silicone High thermal conductivity of 10.0 W/mK Not drying out, silicone parts not fleeting Storage time up to 12 month at normal ambient conditions at delivery... -
Page 18: Disposal
Clamp-on Sensor GTL720 Disposal Materials for disposal must separate the device components and packaging. The legal regulations and guidelines applicable at the relevant time must be observed. The device must not be disposed of as general waste. If a device is to be disposed of, send it back to us direct with the completed Returns form specified under 8.1 Returns, and we will then take... -
Page 19: Eu-Declaration Of Conformity
Clamp-on Sensor GTL720 EU-Declaration of conformity 17 / 17 BA_MA_GTL720_EN_V1.08 BA_MA_TC125_EN_V0.13...
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