• Ensure that all personnel are suitably qualified. • Observe the specifications in the certificate as pipe as national and local regulations. Caution! Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Endress+Hauser...
A terminal which must be connected to earth ground prior to making any other connection to the equipment. Equipotential connection (earth bonding) A connection made to the plant grounding system which may be of type e.g. neutral star or equipotential line according to national or company practice Endress+Hauser...
Analog Transmitter AT1 2 Identification Identification Device designation 2.1.1 Nameplate The follow technical data are given on the instrument nameplate: Order cord Serial number Measuring range Explosion model Protection class Power Output Analog output Contact output Contact output TIIS approval type Endress+Hauser...
R 2 xthread NPT3/4 Y Special version, TSP-no. to be spec. Installation Gauge: 1 LT1100/LT1200/LT3100/LT3200 R:300mm low pressure LT version 2 LT1400/LT1600/LT3400/LT3600 R:300mm high pressure LT version 3 LTC2100 L:600mm 4 LTC2230/LTC2240 R:600mm 9 Special version, TSP-no. to be spec. Endress+Hauser...
Page 7
9 Special version, TSP-no. to be spec. Alarm Contact: 0 Not used 1 A = normal 2 B = nomal closed 3 C = transfer contact Colour: 0 Silver 9 Special version, TSP-no. to be spec. AT1- Complete product designation Endress+Hauser...
It is essential to follow the instructions concerning the unpacking, transport and storage of measuring instruments given in the chapter "Incoming acceptance, transport, storage". The scope of delivery consists of: • Assembled instrument Accompanying documentation: • Operating manual (this manual) Registered trademarks ® HART Registered trademark of HART Communication Foundation, Austin, USA Endress+Hauser...
3.1.3 Storage Pack the measuring instrument so that is protected against impacts for storage and transport. The original packing material provides the optimum protection for this. The permissible storage temperature is -20°C...+60°C (-4°F...+140°F) Endress+Hauser...
3.2.1 Dimensions Flame proof type Alarm output: 0, 2, 4, 6 points locking clamp Main body Cover locking clamp Terminal box Weather proof Alarm output: 0, 2 points, In case of Cable Entry PF(G)3/4,NPT3/4 Main body Cover Terminal box Endress+Hauser...
• When the setting of cam has all finished, set the level on the standard scale by rotating the coupling to match the level setting on the level gauge. Then, close the cover and install it onto the level gauge. Microswitch Com setter Standard scale Scale set boss Alarm Scale Index Alarm cam Scale Com securing screws(2 pieces) Endress+Hauser...
Page 13
If you press the transmitter and the level gauge too firmly against each other, you might break the main shaft and the device will no longer be good for use. Connecting flange of transmitter Level gauge Shaft Transmitter Coupling Coupling pin Endress+Hauser...
Page 14
Toothed look washer Hexagonal nut Hexagonal nut Shaft Coupling pin Coupling Sprocket wheel O-ring Installation with Medium and high prressure(LT14/16/34/36) Rear of float level gauge Washer Toothed lock washer Hexagonal nut O-ring Hexagonal nut Shaft Coupling pin Coupling Threaded bolt Endress+Hauser...
Page 15
Analog Transmitter AT1 3 Installation 3.3.1 Tank installation with Float Tank Gauge Transmitter Terminal box Level gauge Sideways Flexible fitting with M-type (both ends) union See cable entry for transmitter Universal fitting Thick steel Endress+Hauser...
DC power supply Level indicator Potentiometer Terminal Converter 4. DC, 0 - 1mA, 0 - 20mA, 0 - 10V, 0 - 1V output (For alarm contact equipped model, refer to 5 also) DC power supply Level indicator Terminal converter Potentiometer Endress+Hauser...
Page 17
4 Wiring 5. With Alarm contacts In case of with contacts in 1, 2, 3, 4, please refer to following circuits. A contact (normal open) Terminal No. B contact (normal close) Terminal No. C contact (transfer contact) Terminal No. Endress+Hauser...
• Close the main body cover and install to level gauge. Range of span adjustment is between +0 % and -20% of the maximum value. Converter Zero adjustment screw Span adjustment screw 1 2 3 4 5 6 Endress+Hauser...
Repaires to Ex-approved devices When carrying out repairs to Ex-approved devices, please note the following: • Repairs to Ex-approved devices may only be carried out by trained personnel or by the Endress+Hauser Service. • Comply with the prevailing standards, national Ex-area regulations and certificates.
Troubleshooting Spare parts Spare parts are contained in kits. Spare parts which you can order from Endress+Hauser for the Transmitter are shown with their order numbers in the diagram below. For more information on service and spare parts, contact Endress+Hauser.
Page 21
Alarm Output: Not used 2 - point 4 - point 6 - point Installation Gauge: LT1100/LT1200/LT3100/LT3200 R:300mm low pressure LT version LT1400/LT1600/LT3400/LT3600 R:300mm high pressure LT version LTC2100 L:600mm LTC2230/LTC2240 R:600mm Measuring Renge: 1.5m 2.5m 3.5m AT1- Complete product designation Endress+Hauser...
In case of disposal please separate the different components according to their material consistence. Contact addresses of Endress+Hauser The addresses of Endress+Hauser are given on the back cover of this operating manual. If you have any ques- tions, please do not hesitate to contact your Endress+Hauser representative.
Page 25
Erklärung zur Kontamination und Reinigung Please reference the Return Authorization Number (RA#), obtained from Endress+Hauser, on all paperwork and mark the RA# clearly on the outside of the box. If this procedure is not followed, it may result in the refusal of the package at our facility.
Need help?
Do you have a question about the AT1000 AT1 and is the answer not in the manual?
Questions and answers