Minebea CSD-801 User manual

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INSTRUCTION MANUAL
FOR
CSD-801 DIGITAL INDICATOR
MINEBEA CO., LTD.
SHINKOH COMMUNICATION DIVISION
DRW.NO. 294-1011-A
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CONTENTS
§1.
§2.
§3.
OUTLINE
FEATURES
NAME OF EACH PART
Page
1
1
2
3-1 Front panel 2
3-2 Rear panel 3
§4. INSTALLATION 4
§5. CONNECTION METHOD 5
5-1 Terminal board for power and transducer 5
5-2 Terminal board for digital control 5
5-3 BCD-OUT connector 6
5-4 Precautions for connection 8
§6. HANDLING PROCEDURE 10
6-1 Connection 11
6-2 Power ON 11
6-3 Actual load calibration-I 12
6-4 Actual load calibration-II 16
6-5 Actual load calibration-III 17
6-6 Electric calibration-I 19
6-7 Electric calibration-II 20
6-8 Registration of each function by SET MODE 21
6-9 Start of measurement 21
CSD-801 DIGITAL INDICATOR
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§7. FUNCTION IN MEASUREMENT MODE 22
7-1 Zero set function 22
7-2 AUTO ZERO, AUTO ZERO OFF function 23
7-3 Comparative setting function (Comparator) 25
7-4 CENTER ZERO function 27
§8. FUNCTION BY SET MODE (INITIAL SETTING FUNCTION) 28
8-i Required switch for SET MODE 29
8-2 ZERO TRACKING 30
8-3 Minimum effective digit setting function 34
8-4 Multiplication function 38
8-5 Pre-set cancellation function 40
8-6 Comparative setting condition
changeover function 43
8-7 Judgment function 46
8-8 Dummy 0 indication 49
8-9 Decimal point indication 51
8-10. Sign inversion function 53
8-11 Sign transfer function 55
8-12 BCD-OUT true conversion 57
8-13 Unit indication changeover 58
8-14 Manual Z/S function 59
8-15 Back-up Data Clear 60
§9. SELF-CHECK FUNCTION 61
§10. ERROR INDICATION 61
§11. SET MODE SETTING VALUE TABLE 65
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§12. ANALOG ADJUSTMENT 67
12-1 Standard parts adjustment 67
12-2 Layout of adjustment parts 68
12-3 Adjustment of bridge voltage 69
12-4 GAIN adjustment 69
12-5 Change of CHECK value 71
12-6 Change of TARE cancel value 73
§13. SPECIFICATION 75
13-1 General specification 75
13-2 Block Diagram 78
13-3 Appearance Drawing 80
§14. ACCESSORIES 81
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§1. OUTLINE
The equipment is CPU mounted digital indicator for
instrumentation.
§2. FEATURES
oRemote setting function is provided to the converter
(transducer) power, and the error from cable length
will be cancelled.
oFlying capacitor is adopted at signal amplifier input
step. In common mode noise reduction ratio is set at
120dB.
oDrift at the signal amplifier is reduced as much as
possible by chopper amplifier.
oMaximum indication is 9999, with multi (multiplying)
function and, at dumy (-)0, indication up to (+)199980
is possible.
oProvided with BCD parallel-out output (open collector),
which can simultaneously output the total load and
net load.
oSetter is provided with 5-digits 2-steps digital switch,
as well as pre-set cancellation and judgment functions.
It can also be connected to MINEBEA digital setter
CSD-551B by using BCD parallel out connector.
oBy its zero tracking function, secular change in zero-
point of the converter and the like will be cancelled.
1/81
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15-1/2 digits 7 segments LED 12 Zero trimmer
2C/Z LED 13 GAIN rotary switch
3High LED 14 Span trimmer
4Low LED 15 C/S rotary switch
5High setting digi-switch 16 Set mode switch
6Low setting digi-switch 17 Check switch (with LED)
7' V-out zero adjust trimmer 18 A/Z off switch (with LED)
8 V-out span adjust trimmer 19 A/Z switch
9I-out zero adjust trimmer 20 Z/S switch (with LED)
10 I-out span adjust trimmer 21 Unit select LED
11 TARE rotary switch
NAME OF EACH PART
3-I Front panel
2/81
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§4. INSTALLATION
For the safe and complete operation of the instrument,
it is important that equipment is installed properly
in a suitable location. Ideally, a dry room with
uniform temperature environment will be the most
suitable location.
(1) When installing, select a location where mechanical
vibration and corrosive gas are minimal, with small
temperature change near the normal temperature.
(temperature compensated range i 0 % 50°C)
(2) The equipment is panel-mount type. When mounting to
apanel, prepare square holes at designated positions.
(Refer to panel outline drawing and panel cut
dimensions.)
4/81
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