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參數(shù)資料
| 型號： | PM211J |
| 英文描述： | Analog Comparator |
| 中文描述： | 模擬比較器 |
| 文件頁數(shù)： | 12/44頁 |
| 文件大?。?/td> | 186K |
| 代理商： | PM211J |
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Document No: DS8102
Issue: C
Page 12
Power Supply
The PM1100 provides for two separate supply inputs, one for the electronics and one for the
mechanism. Peak mechanism requirement may reach a momentary maximum of 24A so it is
strongly recommended that separate supplies are employed for the mechanism and electronics to
prevent noise spikes affecting the logic. If however the same 5V supply is used to feed the
electronics and the mechanism, then peak mechanism current demands may cause the supply
voltage to dip below the permitted level for the electronics. If this happens the protection circuit
within the PM1100 will operate to prevent mechanism damage. Under these circumstances the
printer may stop and restart repeatedly. This type of supply problem can normally be resolved by
fitting a reservoir capacitor of around 3300μF on the 5V supply as close as possible to the PM1100.
A typical suitable supply circuit is shown in Appendix C.
The PM1100 does not have an integral power switch and it is recommended that in order to ensure
safety and ease of operation a power isolating switch is fitted. Generally such a switch is best
mounted on the panel next to the printer to facilitate ease of self-test and programme/setup
operations.
Paper Loading
The following procedure is recommended for replacing the paper roll. Open the lid to remove any
remaining old paper. Do not to pull the paper backwards out of the rear of the mechanism. Press
the feed switch until any excess paper left in the mechanism is fed out. Reel off a few centimetres
from a new paper roll and ensure that the paper end is square.
Sit the paper roll in the paper well with the paper end coming from the bottom of the roll. Offer the
paper into the back of the mechanism and press the feed switch. Keep the switch depressed until
enough paper is fed out for insertion through the paper exit slot. Feed the paper through the exit
slot and close the lid.
Figure 5
shows the paper path through the printer.
Ribbon Replacement
The recommended procedure for replacement of the printer ribbon is as follows (please refer to
Figure 6
). Open the lid and note that the legend on the cassette gives an instruction (PUSH) to
remove the old ribbon. The cassette will clip off one side and can easily be removed. Take a new
ribbon and check it is taut. Clip it into position making sure that the paper protruding from the top
of the mechanism is located between the exposed ribbon and the plastic cassette. Wind the knob
a few turns in the direction shown on the cassette to take up any slack in the ribbon. Close the lid.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PM211P | 制造商:Analog Devices 功能描述: |
| PM211S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Comparator |
| PM211Y | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Comparator |
| PM211Z | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| PM2120-100K | 功能描述:固定電感器 10uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
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