Emerson Process Management 755R manual 31

Model 755R

Instruction Manual

748213-S April 2002

15

8

7

5

4

3

2

6

10 13

E9

E23

E11

E13

E15 E17

E19 TP5

TP6 TP7 TP8

TP9 TP10 TP11 TP16 TP17 TP18 TP19 TP20

SPAN

R90

E10

E24

E12

E14

E16 E18

E20

R89

R79 R74

R63

100%

50%

25%

10%

5% 2.5%

1%

R88

R30

R29

R100

R9

R52 R87 R53 R82

C63

C64 R68

R64

R3

U17

R67

R8

R4

R2

R1

Q1

Q2

R9

R5

U19

U20

R102

E

CR2

R6

R47

R84

R85

R86

E

R11

R66

R77

R80

R82

R72

R70

R73

U6

BL

1

I G O

C48

2

U3

C68

R78

3

4

U2

CR3

R12

R76

R69 R81 R75

R71 R85

12

9

14

11

1

16

	C5	C4						R49
G		C2						R40
I		U4			U1
O
U5
	I G O	C3		CR1			C1
					J1
	C59							C61
			5V	1V	.1V	.01V
	C60	E21	E1	E3	E5	E7
								C13
U18	C56	E22	E2	E4	E6	E8
								C12
	C58	C49
	U16	C57	U13		R57 R58 R59 R60			U4
							C14	R21 R22 R23 R24
								J2

R43		R42	R101	C38	C41	R10	C66	U2
CR5			+
	T1	CR4	T1	C17
		C45

C55 U12

U15

C65

R50

C53

SPAN

R20

CW

S

CCW

U14

R56 R55

	U11	C50		C37	C16
					C18
						C8	C1
					C39
C51		R54	U10			CR1 CR2 R1 R2 R3 R4
					C36
C44			R37	R25 R27
U21					C28	C27
	C31					C30
		R36 R31 R61 R39 R38		R28		U8
					C29		J5
		ZERO			C26
				R13
					CW
					S
					CCW

R5

			C9
R8	R7	C10	C6
R6	U1			J4
				1
				2
				3
	C4	C67		4
				5
C2				6
				7
C5				8
	C3 C7			9
				10
	J6			11
				12
				13
				14
				15
				16

		652830 SIGNAL CONTROL BOARD
1.	RECORDER OUTPUT selector plug	Provides selectable output of 10 mV, 100 mV, 1 V or 5 V for a voltage recorder.
2.	DIGITAL READOUT (R100)	Calibration of digital readout.
3.	AMPLIFIER U8 ZERO (R29)	Initial factory zeroing of amplifier U8.
4.	RESPONSE TIME (R30)	Adjustment of electronic response time.
5.	FULLSCALE OUTPUT (R88)	Setting fullscale for 1 V, 0.1 V and 10 mV outputs.
6.	DETECTOR COARSE ZERO (R9)	Coarse adjustment of detector zero by shifting the position of the detector within the mag-
		netic field. It is adjusted during factory checkout, and does not require readjustment except
		if detector is replaced.
7.	CURRENT OUTPUT ZERO (R1)	Located on Current Output Board, adjustment for zero-level current output, i.e., 4mA or 0mA
8.	CURRENT OUTPUT SPAN (R2)	Located on Current Output Board, adjustment for fullscale current output: 20mA
9.	ALARM 2 CALIBRATION (R67)	Initial calibration of ALARM 2 circuit.
10.	ALARM 2 SETPOINT (R68)	Continuously variable adjustment of setpoint for ALARM 2 circuit, for actuation of external,
		customer supplied control device(s). Adjustment range is 0 to 100% of fullscale span.
11.	ALARM 2 DEADBAND (R78)	Adjustment of ALARM 2 deadband circuit from 1% to 20% of fullscale. Deadband is essen-
		tially symmetrical with respect to setpoint.
12.	ALARM 1 CALIBRATION (R63)	Initial calibration of ALARM 1 circuit.
13.	ALARM 1 SETPOINT (R64)	Continuously variable adjustment of setpoint for ALARM 1 circuit, for actuation of external,
		customer supplied control device(s). Adjustment range is 0 to 100% of fullscale span.
14.	ALARM 1 DEADBAND (R73)	Adjustment of ALARM 1 deadband circuit from 1% to 20% of fullscale. Deadband is essen-
		tially symmetrical with respect to setpoint.
15.	OUTPUT RANGE selector plug	Selectable fullscale output range.
16.	DETECTOR ISOLATION plug	For servicing and testing of the Control Board.
DIGITAL DISPLAY		Display (viewed on front panel) indicates oxygen content of sample.
ZERO control (R13)		Accessible on front panel, use to establish zero-calibration point.
SPAN control (R20)		Accessible on front panel, use to establish span calibration point.

Figure 3-1. Control Board - Adjustment Locations

Rosemount Analytical Inc. A Division of Emerson Process Management Operation 3-3