Magnescale LT30 Series - English

(E) i
LT20A / LT30 Series
Contents
1. Note to users .............................................................. 1
1-1. General precautions............................................. 1
1-2. Handling instructions............................................ 1
1-3. Cautions on operation .......................................... 2
1-4. Instructions for connecting to the measuring
unit ....................................................................... 2
2. Summary .................................................................... 3
2-1. Features ............................................................... 3
2-2. System structure .................................................. 4
3. Connecting and installating ...................................... 5
3-1. Connecting the cables ......................................... 5
3-2. Installing the counter unit ..................................... 5
4. Name and function of each part ............................... 6
4-1. Front panel .......................................................... 6
4-2. Rear panel ........................................................... 8
4-3. Function description ............................................. 9
4-3-1. Reset key.................................................. 9
4-3-2. Preset functions ...................................... 10
4-3-3. Result evaluation .................................... 10
4-3-4. Peak-hold function .................................. 10
4-3-5. Peak-hold pause function ....................... 11
4-3-6. Latch functions ....................................... 12
5. Operation .................................................................. 13
5-1. Initial settings ..................................................... 13
5-1-1. Basic settings ......................................... 13
5-1-2. BCD model (only LT20A-101B/201B,
LT30-1GB/2GB)...................................... 15
5-1-3. RS-232C model (only LT20A-101C/201C,
LT30-1GC/2GC) ..................................... 16
5-2. Various settings ................................................. 19
5-2-1. Setting the preset value .......................... 19
5-2-2. Setting the measuring mode................... 20
5-2-3. Setting the comparator values ................ 21
5-2-4. Setting the key lock ................................ 23
6. Reference point ........................................................ 24
7. I/O connector ............................................................ 25
7-1. Connector pin assignment ................................. 25
7-2. I/O circuitry (I/O connector area)........................ 27
7-3. Signal timing ...................................................... 28
8. BCD output (only BCD model) ................................ 29
8-1. Connector pin assignment ................................. 29
8-2. Signal timing ...................................................... 31
8-3. Interface cable ................................................... 32
8-4. BCD input/output circuits ................................... 33