Signal Output

Signal attenuation

For analytical information from a detector, proper settings for RANGE 2!( )

and ATTN 2!( ) are determined such that peaks of interest are on scale at the integrator or chart recorder: peaks of interest must neither flat top by exceeding the allowed maximum output level, nor be too small to be measured. Table 5•3lists maximum detector output producing +1 volt at the +1V output for each RANGE 2!( ) setpoint value.

Table 5-3. Detector Output Producing a 1 V Signal

Maximum Detector Signal

Producing +1 V Output

RANGE 2!( )

TCD

TCD

ECD (kHz)

FID & NPD (pA) (mV, High Gain)

(mV, Low Gain)

0

1.0 } 103

25

800

10

1

2.0 } 103

50

C

20

2

4.0 } 103

C

C

40

3

8.0 } 103

C

C

80

4

1.6 } 104

C

C

160

5

3.2 } 104

C

C

320

6

6.4 } 104

C

C

C

7

1.3 } 105

C

C

C

8

2.6 } 105

C

C

C

9

5.1 } 105

C

C

C

10

1.0 } 106

C

C

C

11

2.0 } 106

C

C

C

12

4.1 } 106

C

C

C

13

8.2 } 106

C

C

C

74