Time-electronics 1077 Milliamp Transducer Simulator Uživatelský manuál

V1.1 04/11/10 Time Electronics Ltd Botany Industrial Estate, Tonbridge, Kent, TN9 1RH Tel: +44(0)1732 355993 Fax: +44(0)1732 770312 Email: mail@Ti

10 1077 Technical Manual Page | 10 4.6. Operation as a Current Load (Transducer Simulation) 1. Turn on 1077, check battery le

11 1077 Technical Manual Page | 11 4.7. Operation as a Current Source As a current source the 1077 will supply the set current

12 1077 Technical Manual Page | 12 4.8. Operation as a Line Simulator As a current source the 1077 will supply the set current

13 1077 Technical Manual Page | 13 4.9. Recharging To charge the 1077 first turn off the 1077 then connect the charge to the recharge socket on the

14 1077 Technical Manual Page | 14 5. Circuit Des cription 5.1. Power Supply The batteries and power supply circuitry is located on the bracket whic

15 1077 Technical Manual Page | 15 6. Maintenance 6.1. Dismantling the Instrument Remove rubber protection boot and then removal of four 2.0mm CSK

16 1077 Technical Manual Page | 16 6.4. Calibration The 1077 is calibrated when it leaves the factory and should not require further adjustment for

17 1077 Technical Manual Page | 17 Set the 1077 to Load function with 10mA range and digit switch set to 9999. Connect the 24V supply to the 1077 th

18 1077 Technical Manual Page | 18 7. Guarantee & Servicing Guarantee Period This unit is guaranteed against defects in materials and workmanship

2 1077 Technical Manual Page | 2 Contents 1. Introduction ...

3 1077 Technical Manual Page | 3 1. Introduction The 1077 is a portable, hand-held instrument designed for the testing and simulation of current tra

4 1077 Technical Manual Page | 4 2. Specifications Current Source and Load Current Range: 0 to 100 milliamps in 3 ranges. 0 - 99.99mA in 10 uA s

5 1077 Technical Manual Page | 5 Page left blank intentionally

6 1077 Technical Manual Page | 6 3. Front Panel Controls 1 2 3 6 10 9 4 5 ON/OFF 8 7 11

7 1077 Technical Manual Page | 7 1. Output Terminals The output current is available on the two front panel terminals which are suitable for normal

8 1077 Technical Manual Page | 8 4. Operation 4.1. Principle of Operation of the 2 Wire 4/20mA System To fully understand the operation of the 1077

9 1077 Technical Manual Page | 9 4.2. Checking/Calibrating the Transducer By selecting the 'line' simulation mode on the 1077, the 1077 ac